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linux/drivers/char/rocket.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
* RocketPort device driver for Linux
*
* Written by Theodore Ts'o, 1995, 1996, 1997, 1998, 1999, 2000.
*
* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003 by Comtrol, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Kernel Synchronization:
*
* This driver has 2 kernel control paths - exception handlers (calls into the driver
* from user mode) and the timer bottom half (tasklet). This is a polled driver, interrupts
* are not used.
*
* Critical data:
* - rp_table[], accessed through passed "info" pointers, is a global (static) array of
* serial port state information and the xmit_buf circular buffer. Protected by
* a per port spinlock.
* - xmit_flags[], an array of ints indexed by line (port) number, indicating that there
* is data to be transmitted. Protected by atomic bit operations.
* - rp_num_ports, int indicating number of open ports, protected by atomic operations.
*
* rp_write() and rp_write_char() functions use a per port semaphore to protect against
* simultaneous access to the same port by more than one process.
*/
/****** Defines ******/
#ifdef PCI_NUM_RESOURCES
#define PCI_BASE_ADDRESS(dev, r) ((dev)->resource[r].start)
#else
#define PCI_BASE_ADDRESS(dev, r) ((dev)->base_address[r])
#endif
#define ROCKET_PARANOIA_CHECK
#define ROCKET_DISABLE_SIMUSAGE
#undef ROCKET_SOFT_FLOW
#undef ROCKET_DEBUG_OPEN
#undef ROCKET_DEBUG_INTR
#undef ROCKET_DEBUG_WRITE
#undef ROCKET_DEBUG_FLOW
#undef ROCKET_DEBUG_THROTTLE
#undef ROCKET_DEBUG_WAIT_UNTIL_SENT
#undef ROCKET_DEBUG_RECEIVE
#undef ROCKET_DEBUG_HANGUP
#undef REV_PCI_ORDER
#undef ROCKET_DEBUG_IO
#define POLL_PERIOD HZ/100 /* Polling period .01 seconds (10ms) */
/****** Kernel includes ******/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/major.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/string.h>
#include <linux/fcntl.h>
#include <linux/ptrace.h>
use mutex instead of semaphore in RocketPort driver The RocketPort driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:32:00 +00:00
#include <linux/mutex.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#include <linux/ioport.h>
#include <linux/delay.h>
Char: rocket, switch sleep_on to completion rocket, switch sleep_on to completion - sleep_on is deprecated and racy, use completion instead - also check retval of interruptible function and return ERESTARTSYS eventually Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:25 +00:00
#include <linux/completion.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#include <linux/wait.h>
#include <linux/pci.h>
#include <asm/uaccess.h>
#include <asm/atomic.h>
#include <linux/bitops.h>
#include <linux/spinlock.h>
#include <linux/init.h>
/****** RocketPort includes ******/
#include "rocket_int.h"
#include "rocket.h"
#define ROCKET_VERSION "2.09"
#define ROCKET_DATE "12-June-2003"
/****** RocketPort Local Variables ******/
[PATCH] Char: timers cleanup - Use timer macros to set function and data members and to modify expiration time. - Use DEFINE_TIMER for global timers and do not init them at run-time in these cases. - del_timer_sync is common in most cases -- we want to wait for timer function if it's still running. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Kylene Jo Hall <kjhall@us.ibm.com> Cc: Wim Van Sebroeck <wim@iguana.be> Acked-by: Dmitry Torokhov <dtor@mail.ru> (Input bits) Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 08:52:31 +00:00
static void rp_do_poll(unsigned long dummy);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static struct tty_driver *rocket_driver;
static struct rocket_version driver_version = {
ROCKET_VERSION, ROCKET_DATE
};
static struct r_port *rp_table[MAX_RP_PORTS]; /* The main repository of serial port state information. */
static unsigned int xmit_flags[NUM_BOARDS]; /* Bit significant, indicates port had data to transmit. */
/* eg. Bit 0 indicates port 0 has xmit data, ... */
static atomic_t rp_num_ports_open; /* Number of serial ports open */
[PATCH] Char: timers cleanup - Use timer macros to set function and data members and to modify expiration time. - Use DEFINE_TIMER for global timers and do not init them at run-time in these cases. - del_timer_sync is common in most cases -- we want to wait for timer function if it's still running. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Kylene Jo Hall <kjhall@us.ibm.com> Cc: Wim Van Sebroeck <wim@iguana.be> Acked-by: Dmitry Torokhov <dtor@mail.ru> (Input bits) Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 08:52:31 +00:00
static DEFINE_TIMER(rocket_timer, rp_do_poll, 0, 0);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static unsigned long board1; /* ISA addresses, retrieved from rocketport.conf */
static unsigned long board2;
static unsigned long board3;
static unsigned long board4;
static unsigned long controller;
static int support_low_speed;
static unsigned long modem1;
static unsigned long modem2;
static unsigned long modem3;
static unsigned long modem4;
static unsigned long pc104_1[8];
static unsigned long pc104_2[8];
static unsigned long pc104_3[8];
static unsigned long pc104_4[8];
static unsigned long *pc104[4] = { pc104_1, pc104_2, pc104_3, pc104_4 };
static int rp_baud_base[NUM_BOARDS]; /* Board config info (Someday make a per-board structure) */
static unsigned long rcktpt_io_addr[NUM_BOARDS];
static int rcktpt_type[NUM_BOARDS];
static int is_PCI[NUM_BOARDS];
static rocketModel_t rocketModel[NUM_BOARDS];
static int max_board;
/*
* The following arrays define the interrupt bits corresponding to each AIOP.
* These bits are different between the ISA and regular PCI boards and the
* Universal PCI boards.
*/
static Word_t aiop_intr_bits[AIOP_CTL_SIZE] = {
AIOP_INTR_BIT_0,
AIOP_INTR_BIT_1,
AIOP_INTR_BIT_2,
AIOP_INTR_BIT_3
};
static Word_t upci_aiop_intr_bits[AIOP_CTL_SIZE] = {
UPCI_AIOP_INTR_BIT_0,
UPCI_AIOP_INTR_BIT_1,
UPCI_AIOP_INTR_BIT_2,
UPCI_AIOP_INTR_BIT_3
};
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static Byte_t RData[RDATASIZE] = {
0x00, 0x09, 0xf6, 0x82,
0x02, 0x09, 0x86, 0xfb,
0x04, 0x09, 0x00, 0x0a,
0x06, 0x09, 0x01, 0x0a,
0x08, 0x09, 0x8a, 0x13,
0x0a, 0x09, 0xc5, 0x11,
0x0c, 0x09, 0x86, 0x85,
0x0e, 0x09, 0x20, 0x0a,
0x10, 0x09, 0x21, 0x0a,
0x12, 0x09, 0x41, 0xff,
0x14, 0x09, 0x82, 0x00,
0x16, 0x09, 0x82, 0x7b,
0x18, 0x09, 0x8a, 0x7d,
0x1a, 0x09, 0x88, 0x81,
0x1c, 0x09, 0x86, 0x7a,
0x1e, 0x09, 0x84, 0x81,
0x20, 0x09, 0x82, 0x7c,
0x22, 0x09, 0x0a, 0x0a
};
static Byte_t RRegData[RREGDATASIZE] = {
0x00, 0x09, 0xf6, 0x82, /* 00: Stop Rx processor */
0x08, 0x09, 0x8a, 0x13, /* 04: Tx software flow control */
0x0a, 0x09, 0xc5, 0x11, /* 08: XON char */
0x0c, 0x09, 0x86, 0x85, /* 0c: XANY */
0x12, 0x09, 0x41, 0xff, /* 10: Rx mask char */
0x14, 0x09, 0x82, 0x00, /* 14: Compare/Ignore #0 */
0x16, 0x09, 0x82, 0x7b, /* 18: Compare #1 */
0x18, 0x09, 0x8a, 0x7d, /* 1c: Compare #2 */
0x1a, 0x09, 0x88, 0x81, /* 20: Interrupt #1 */
0x1c, 0x09, 0x86, 0x7a, /* 24: Ignore/Replace #1 */
0x1e, 0x09, 0x84, 0x81, /* 28: Interrupt #2 */
0x20, 0x09, 0x82, 0x7c, /* 2c: Ignore/Replace #2 */
0x22, 0x09, 0x0a, 0x0a /* 30: Rx FIFO Enable */
};
static CONTROLLER_T sController[CTL_SIZE] = {
{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
{0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
{0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
{0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
{-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
{0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}
};
static Byte_t sBitMapClrTbl[8] = {
0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f
};
static Byte_t sBitMapSetTbl[8] = {
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80
};
static int sClockPrescale = 0x14;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
* Line number is the ttySIx number (x), the Minor number. We
* assign them sequentially, starting at zero. The following
* array keeps track of the line number assigned to a given board/aiop/channel.
*/
static unsigned char lineNumbers[MAX_RP_PORTS];
static unsigned long nextLineNumber;
/***** RocketPort Static Prototypes *********/
static int __init init_ISA(int i);
static void rp_wait_until_sent(struct tty_struct *tty, int timeout);
static void rp_flush_buffer(struct tty_struct *tty);
static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model);
static unsigned char GetLineNumber(int ctrl, int aiop, int ch);
static unsigned char SetLineNumber(int ctrl, int aiop, int ch);
static void rp_start(struct tty_struct *tty);
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum,
int ChanNum);
static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode);
static void sFlushRxFIFO(CHANNEL_T * ChP);
static void sFlushTxFIFO(CHANNEL_T * ChP);
static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags);
static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags);
static void sModemReset(CONTROLLER_T * CtlP, int chan, int on);
static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on);
static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data);
static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
ByteIO_t * AiopIOList, int AiopIOListSize,
WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
int PeriodicOnly, int altChanRingIndicator,
int UPCIRingInd);
static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
ByteIO_t * AiopIOList, int AiopIOListSize,
int IRQNum, Byte_t Frequency, int PeriodicOnly);
static int sReadAiopID(ByteIO_t io);
static int sReadAiopNumChan(WordIO_t io);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
MODULE_AUTHOR("Theodore Ts'o");
MODULE_DESCRIPTION("Comtrol RocketPort driver");
module_param(board1, ulong, 0);
MODULE_PARM_DESC(board1, "I/O port for (ISA) board #1");
module_param(board2, ulong, 0);
MODULE_PARM_DESC(board2, "I/O port for (ISA) board #2");
module_param(board3, ulong, 0);
MODULE_PARM_DESC(board3, "I/O port for (ISA) board #3");
module_param(board4, ulong, 0);
MODULE_PARM_DESC(board4, "I/O port for (ISA) board #4");
module_param(controller, ulong, 0);
MODULE_PARM_DESC(controller, "I/O port for (ISA) rocketport controller");
module_param(support_low_speed, bool, 0);
MODULE_PARM_DESC(support_low_speed, "1 means support 50 baud, 0 means support 460400 baud");
module_param(modem1, ulong, 0);
MODULE_PARM_DESC(modem1, "1 means (ISA) board #1 is a RocketModem");
module_param(modem2, ulong, 0);
MODULE_PARM_DESC(modem2, "1 means (ISA) board #2 is a RocketModem");
module_param(modem3, ulong, 0);
MODULE_PARM_DESC(modem3, "1 means (ISA) board #3 is a RocketModem");
module_param(modem4, ulong, 0);
MODULE_PARM_DESC(modem4, "1 means (ISA) board #4 is a RocketModem");
module_param_array(pc104_1, ulong, NULL, 0);
MODULE_PARM_DESC(pc104_1, "set interface types for ISA(PC104) board #1 (e.g. pc104_1=232,232,485,485,...");
module_param_array(pc104_2, ulong, NULL, 0);
MODULE_PARM_DESC(pc104_2, "set interface types for ISA(PC104) board #2 (e.g. pc104_2=232,232,485,485,...");
module_param_array(pc104_3, ulong, NULL, 0);
MODULE_PARM_DESC(pc104_3, "set interface types for ISA(PC104) board #3 (e.g. pc104_3=232,232,485,485,...");
module_param_array(pc104_4, ulong, NULL, 0);
MODULE_PARM_DESC(pc104_4, "set interface types for ISA(PC104) board #4 (e.g. pc104_4=232,232,485,485,...");
[PATCH] rocketport: make it work when statically linked into kernel The driver had incorrectly wrapped module_init(rp_init) in #ifdef MODULE, so it worked only when compiled as a module. Tested by Wolfgang Denk with this device: 00:0e.0 Communication controller: Comtrol Corporation RocketPort 8 port w/RJ11 connectors (rev 04) Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at 7000 [size=64] Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 23:03:14 +00:00
static int rp_init(void);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static void rp_cleanup_module(void);
module_init(rp_init);
module_exit(rp_cleanup_module);
MODULE_LICENSE("Dual BSD/GPL");
/*************************************************************************/
/* Module code starts here */
static inline int rocket_paranoia_check(struct r_port *info,
const char *routine)
{
#ifdef ROCKET_PARANOIA_CHECK
if (!info)
return 1;
if (info->magic != RPORT_MAGIC) {
printk(KERN_INFO "Warning: bad magic number for rocketport struct in %s\n",
routine);
return 1;
}
#endif
return 0;
}
/* Serial port receive data function. Called (from timer poll) when an AIOPIC signals
* that receive data is present on a serial port. Pulls data from FIFO, moves it into the
* tty layer.
*/
static void rp_do_receive(struct r_port *info,
struct tty_struct *tty,
CHANNEL_t * cp, unsigned int ChanStatus)
{
unsigned int CharNStat;
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
int ToRecv, wRecv, space;
unsigned char *cbuf;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
ToRecv = sGetRxCnt(cp);
#ifdef ROCKET_DEBUG_INTR
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
printk(KERN_INFO "rp_do_receive(%d)...", ToRecv);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#endif
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
if (ToRecv == 0)
return;
[PATCH] TTY layer buffering revamp The API and code have been through various bits of initial review by serial driver people but they definitely need to live somewhere for a while so the unconverted drivers can get knocked into shape, existing drivers that have been updated can be better tuned and bugs whacked out. This replaces the tty flip buffers with kmalloc objects in rings. In the normal situation for an IRQ driven serial port at typical speeds the behaviour is pretty much the same, two buffers end up allocated and the kernel cycles between them as before. When there are delays or at high speed we now behave far better as the buffer pool can grow a bit rather than lose characters. This also means that we can operate at higher speeds reliably. For drivers that receive characters in blocks (DMA based, USB and especially virtualisation) the layer allows a lot of driver specific code that works around the tty layer with private secondary queues to be removed. The IBM folks need this sort of layer, the smart serial port people do, the virtualisers do (because a virtualised tty typically operates at infinite speed rather than emulating 9600 baud). Finally many drivers had invalid and unsafe attempts to avoid buffer overflows by directly invoking tty methods extracted out of the innards of work queue structs. These are no longer needed and all go away. That fixes various random hangs with serial ports on overflow. The other change in here is to optimise the receive_room path that is used by some callers. It turns out that only one ldisc uses receive room except asa constant and it updates it far far less than the value is read. We thus make it a variable not a function call. I expect the code to contain bugs due to the size alone but I'll be watching and squashing them and feeding out new patches as it goes. Because the buffers now dynamically expand you should only run out of buffering when the kernel runs out of memory for real. That means a lot of the horrible hacks high performance drivers used to do just aren't needed any more. Description: tty_insert_flip_char is an old API and continues to work as before, as does tty_flip_buffer_push() [this is why many drivers dont need modification]. It does now also return the number of chars inserted There are also tty_buffer_request_room(tty, len) which asks for a buffer block of the length requested and returns the space found. This improves efficiency with hardware that knows how much to transfer. and tty_insert_flip_string_flags(tty, str, flags, len) to insert a string of characters and flags For a smart interface the usual code is len = tty_request_buffer_room(tty, amount_hardware_says); tty_insert_flip_string(tty, buffer_from_card, len); More description! At the moment tty buffers are attached directly to the tty. This is causing a lot of the problems related to tty layer locking, also problems at high speed and also with bursty data (such as occurs in virtualised environments) I'm working on ripping out the flip buffers and replacing them with a pool of dynamically allocated buffers. This allows both for old style "byte I/O" devices and also helps virtualisation and smart devices where large blocks of data suddenely materialise and need storing. So far so good. Lots of drivers reference tty->flip.*. Several of them also call directly and unsafely into function pointers it provides. This will all break. Most drivers can use tty_insert_flip_char which can be kept as an API but others need more. At the moment I've added the following interfaces, if people think more will be needed now is a good time to say int tty_buffer_request_room(tty, size) Try and ensure at least size bytes are available, returns actual room (may be zero). At the moment it just uses the flipbuf space but that will change. Repeated calls without characters being added are not cumulative. (ie if you call it with 1, 1, 1, and then 4 you'll have four characters of space. The other functions will also try and grow buffers in future but this will be a more efficient way when you know block sizes. int tty_insert_flip_char(tty, ch, flag) As before insert a character if there is room. Now returns 1 for success, 0 for failure. int tty_insert_flip_string(tty, str, len) Insert a block of non error characters. Returns the number inserted. int tty_prepare_flip_string(tty, strptr, len) Adjust the buffer to allow len characters to be added. Returns a buffer pointer in strptr and the length available. This allows for hardware that needs to use functions like insl or mencpy_fromio. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 04:54:13 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
* if status indicates there are errored characters in the
* FIFO, then enter status mode (a word in FIFO holds
* character and status).
*/
if (ChanStatus & (RXFOVERFL | RXBREAK | RXFRAME | RXPARITY)) {
if (!(ChanStatus & STATMODE)) {
#ifdef ROCKET_DEBUG_RECEIVE
printk(KERN_INFO "Entering STATMODE...");
#endif
ChanStatus |= STATMODE;
sEnRxStatusMode(cp);
}
}
/*
* if we previously entered status mode, then read down the
* FIFO one word at a time, pulling apart the character and
* the status. Update error counters depending on status
*/
if (ChanStatus & STATMODE) {
#ifdef ROCKET_DEBUG_RECEIVE
printk(KERN_INFO "Ignore %x, read %x...", info->ignore_status_mask,
info->read_status_mask);
#endif
while (ToRecv) {
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
char flag;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
CharNStat = sInW(sGetTxRxDataIO(cp));
#ifdef ROCKET_DEBUG_RECEIVE
printk(KERN_INFO "%x...", CharNStat);
#endif
if (CharNStat & STMBREAKH)
CharNStat &= ~(STMFRAMEH | STMPARITYH);
if (CharNStat & info->ignore_status_mask) {
ToRecv--;
continue;
}
CharNStat &= info->read_status_mask;
if (CharNStat & STMBREAKH)
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
flag = TTY_BREAK;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
else if (CharNStat & STMPARITYH)
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
flag = TTY_PARITY;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
else if (CharNStat & STMFRAMEH)
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
flag = TTY_FRAME;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
else if (CharNStat & STMRCVROVRH)
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
flag = TTY_OVERRUN;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
else
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
flag = TTY_NORMAL;
tty_insert_flip_char(tty, CharNStat & 0xff, flag);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
ToRecv--;
}
/*
* after we've emptied the FIFO in status mode, turn
* status mode back off
*/
if (sGetRxCnt(cp) == 0) {
#ifdef ROCKET_DEBUG_RECEIVE
printk(KERN_INFO "Status mode off.\n");
#endif
sDisRxStatusMode(cp);
}
} else {
/*
* we aren't in status mode, so read down the FIFO two
* characters at time by doing repeated word IO
* transfer.
*/
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
space = tty_prepare_flip_string(tty, &cbuf, ToRecv);
if (space < ToRecv) {
#ifdef ROCKET_DEBUG_RECEIVE
printk(KERN_INFO "rp_do_receive:insufficient space ToRecv=%d space=%d\n", ToRecv, space);
#endif
if (space <= 0)
return;
ToRecv = space;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
wRecv = ToRecv >> 1;
if (wRecv)
sInStrW(sGetTxRxDataIO(cp), (unsigned short *) cbuf, wRecv);
if (ToRecv & 1)
cbuf[ToRecv - 1] = sInB(sGetTxRxDataIO(cp));
}
/* Push the data up to the tty layer */
[PATCH] fix memory leak in rocketport rp_do_receive Fix memory leak caused by incorrect use of tty buffer facility. tty buffers are allocated but never processed by call to tty_flip_buffer_push so they accumulate on the full buffer list. Current code uses the buffers as a temporary storage for data before passing it directly to the line discipline. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 12:49:12 +00:00
tty_flip_buffer_push(tty);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
/*
* Serial port transmit data function. Called from the timer polling loop as a
* result of a bit set in xmit_flags[], indicating data (from the tty layer) is ready
* to be sent out the serial port. Data is buffered in rp_table[line].xmit_buf, it is
* moved to the port's xmit FIFO. *info is critical data, protected by spinlocks.
*/
static void rp_do_transmit(struct r_port *info)
{
int c;
CHANNEL_t *cp = &info->channel;
struct tty_struct *tty;
unsigned long flags;
#ifdef ROCKET_DEBUG_INTR
printk(KERN_INFO "rp_do_transmit ");
#endif
if (!info)
return;
if (!info->tty) {
printk(KERN_INFO "rp: WARNING rp_do_transmit called with info->tty==NULL\n");
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
return;
}
spin_lock_irqsave(&info->slock, flags);
tty = info->tty;
info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
/* Loop sending data to FIFO until done or FIFO full */
while (1) {
if (tty->stopped || tty->hw_stopped)
break;
c = min(info->xmit_fifo_room, min(info->xmit_cnt, XMIT_BUF_SIZE - info->xmit_tail));
if (c <= 0 || info->xmit_fifo_room <= 0)
break;
sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) (info->xmit_buf + info->xmit_tail), c / 2);
if (c & 1)
sOutB(sGetTxRxDataIO(cp), info->xmit_buf[info->xmit_tail + c - 1]);
info->xmit_tail += c;
info->xmit_tail &= XMIT_BUF_SIZE - 1;
info->xmit_cnt -= c;
info->xmit_fifo_room -= c;
#ifdef ROCKET_DEBUG_INTR
printk(KERN_INFO "tx %d chars...", c);
#endif
}
if (info->xmit_cnt == 0)
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
if (info->xmit_cnt < WAKEUP_CHARS) {
tty_wakeup(tty);
#ifdef ROCKETPORT_HAVE_POLL_WAIT
wake_up_interruptible(&tty->poll_wait);
#endif
}
spin_unlock_irqrestore(&info->slock, flags);
#ifdef ROCKET_DEBUG_INTR
printk(KERN_INFO "(%d,%d,%d,%d)...", info->xmit_cnt, info->xmit_head,
info->xmit_tail, info->xmit_fifo_room);
#endif
}
/*
* Called when a serial port signals it has read data in it's RX FIFO.
* It checks what interrupts are pending and services them, including
* receiving serial data.
*/
static void rp_handle_port(struct r_port *info)
{
CHANNEL_t *cp;
struct tty_struct *tty;
unsigned int IntMask, ChanStatus;
if (!info)
return;
if ((info->flags & ROCKET_INITIALIZED) == 0) {
printk(KERN_INFO "rp: WARNING: rp_handle_port called with info->flags & NOT_INIT\n");
return;
}
if (!info->tty) {
printk(KERN_INFO "rp: WARNING: rp_handle_port called with info->tty==NULL\n");
return;
}
cp = &info->channel;
tty = info->tty;
IntMask = sGetChanIntID(cp) & info->intmask;
#ifdef ROCKET_DEBUG_INTR
printk(KERN_INFO "rp_interrupt %02x...", IntMask);
#endif
ChanStatus = sGetChanStatus(cp);
if (IntMask & RXF_TRIG) { /* Rx FIFO trigger level */
rp_do_receive(info, tty, cp, ChanStatus);
}
if (IntMask & DELTA_CD) { /* CD change */
#if (defined(ROCKET_DEBUG_OPEN) || defined(ROCKET_DEBUG_INTR) || defined(ROCKET_DEBUG_HANGUP))
printk(KERN_INFO "ttyR%d CD now %s...", info->line,
(ChanStatus & CD_ACT) ? "on" : "off");
#endif
if (!(ChanStatus & CD_ACT) && info->cd_status) {
#ifdef ROCKET_DEBUG_HANGUP
printk(KERN_INFO "CD drop, calling hangup.\n");
#endif
tty_hangup(tty);
}
info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0;
wake_up_interruptible(&info->open_wait);
}
#ifdef ROCKET_DEBUG_INTR
if (IntMask & DELTA_CTS) { /* CTS change */
printk(KERN_INFO "CTS change...\n");
}
if (IntMask & DELTA_DSR) { /* DSR change */
printk(KERN_INFO "DSR change...\n");
}
#endif
}
/*
* The top level polling routine. Repeats every 1/100 HZ (10ms).
*/
static void rp_do_poll(unsigned long dummy)
{
CONTROLLER_t *ctlp;
Char: rocket, fix signed/unsigned warning Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:29 +00:00
int ctrl, aiop, ch, line;
unsigned int xmitmask, i;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
unsigned int CtlMask;
unsigned char AiopMask;
Word_t bit;
/* Walk through all the boards (ctrl's) */
for (ctrl = 0; ctrl < max_board; ctrl++) {
if (rcktpt_io_addr[ctrl] <= 0)
continue;
/* Get a ptr to the board's control struct */
ctlp = sCtlNumToCtlPtr(ctrl);
Fix misspellings of "system", "controller", "interrupt" and "necessary". Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 21:10:43 +00:00
/* Get the interrupt status from the board */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#ifdef CONFIG_PCI
if (ctlp->BusType == isPCI)
CtlMask = sPCIGetControllerIntStatus(ctlp);
else
#endif
CtlMask = sGetControllerIntStatus(ctlp);
/* Check if any AIOP read bits are set */
for (aiop = 0; CtlMask; aiop++) {
bit = ctlp->AiopIntrBits[aiop];
if (CtlMask & bit) {
CtlMask &= ~bit;
AiopMask = sGetAiopIntStatus(ctlp, aiop);
/* Check if any port read bits are set */
for (ch = 0; AiopMask; AiopMask >>= 1, ch++) {
if (AiopMask & 1) {
/* Get the line number (/dev/ttyRx number). */
/* Read the data from the port. */
line = GetLineNumber(ctrl, aiop, ch);
rp_handle_port(rp_table[line]);
}
}
}
}
xmitmask = xmit_flags[ctrl];
/*
* xmit_flags contains bit-significant flags, indicating there is data
* to xmit on the port. Bit 0 is port 0 on this board, bit 1 is port
* 1, ... (32 total possible). The variable i has the aiop and ch
* numbers encoded in it (port 0-7 are aiop0, 8-15 are aiop1, etc).
*/
if (xmitmask) {
for (i = 0; i < rocketModel[ctrl].numPorts; i++) {
if (xmitmask & (1 << i)) {
aiop = (i & 0x18) >> 3;
ch = i & 0x07;
line = GetLineNumber(ctrl, aiop, ch);
rp_do_transmit(rp_table[line]);
}
}
}
}
/*
* Reset the timer so we get called at the next clock tick (10ms).
*/
if (atomic_read(&rp_num_ports_open))
mod_timer(&rocket_timer, jiffies + POLL_PERIOD);
}
/*
* Initializes the r_port structure for a port, as well as enabling the port on
* the board.
* Inputs: board, aiop, chan numbers
*/
static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
{
unsigned rocketMode;
struct r_port *info;
int line;
CONTROLLER_T *ctlp;
/* Get the next available line number */
line = SetLineNumber(board, aiop, chan);
ctlp = sCtlNumToCtlPtr(board);
/* Get a r_port struct for the port, fill it in and save it globally, indexed by line number */
some kmalloc/memset ->kzalloc (tree wide) Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 08:49:03 +00:00
info = kzalloc(sizeof (struct r_port), GFP_KERNEL);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (!info) {
printk(KERN_INFO "Couldn't allocate info struct for line #%d\n", line);
return;
}
info->magic = RPORT_MAGIC;
info->line = line;
info->ctlp = ctlp;
info->board = board;
info->aiop = aiop;
info->chan = chan;
info->closing_wait = 3000;
info->close_delay = 50;
init_waitqueue_head(&info->open_wait);
Char: rocket, switch sleep_on to completion rocket, switch sleep_on to completion - sleep_on is deprecated and racy, use completion instead - also check retval of interruptible function and return ERESTARTSYS eventually Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:25 +00:00
init_completion(&info->close_wait);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
info->flags &= ~ROCKET_MODE_MASK;
switch (pc104[board][line]) {
case 422:
info->flags |= ROCKET_MODE_RS422;
break;
case 485:
info->flags |= ROCKET_MODE_RS485;
break;
case 232:
default:
info->flags |= ROCKET_MODE_RS232;
break;
}
info->intmask = RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR;
if (sInitChan(ctlp, &info->channel, aiop, chan) == 0) {
printk(KERN_INFO "RocketPort sInitChan(%d, %d, %d) failed!\n", board, aiop, chan);
kfree(info);
return;
}
rocketMode = info->flags & ROCKET_MODE_MASK;
if ((info->flags & ROCKET_RTS_TOGGLE) || (rocketMode == ROCKET_MODE_RS485))
sEnRTSToggle(&info->channel);
else
sDisRTSToggle(&info->channel);
if (ctlp->boardType == ROCKET_TYPE_PC104) {
switch (rocketMode) {
case ROCKET_MODE_RS485:
sSetInterfaceMode(&info->channel, InterfaceModeRS485);
break;
case ROCKET_MODE_RS422:
sSetInterfaceMode(&info->channel, InterfaceModeRS422);
break;
case ROCKET_MODE_RS232:
default:
if (info->flags & ROCKET_RTS_TOGGLE)
sSetInterfaceMode(&info->channel, InterfaceModeRS232T);
else
sSetInterfaceMode(&info->channel, InterfaceModeRS232);
break;
}
}
spin_lock_init(&info->slock);
use mutex instead of semaphore in RocketPort driver The RocketPort driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:32:00 +00:00
mutex_init(&info->write_mtx);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
rp_table[line] = info;
Char: rocket, fix dynamic_dev tty - register_device unconditionally (non-pci dependent) to have also isa devices in /dev - unregister devices on module removal - don't set TTY_DRIVER_DYNAMIC_DEV twice (removed the one dependent on some macro) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Ferenc Wagner <wferi@niif.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:26 +00:00
tty_register_device(rocket_driver, line, pci_dev ? &pci_dev->dev :
NULL);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
/*
* Configures a rocketport port according to its termio settings. Called from
* user mode into the driver (exception handler). *info CD manipulation is spinlock protected.
*/
static void configure_r_port(struct r_port *info,
[PATCH] tty: switch to ktermios This is the grungy swap all the occurrences in the right places patch that goes with the updates. At this point we have the same functionality as before (except that sgttyb() returns speeds not zero) and are ready to begin turning new stuff on providing nobody reports lots of bugs If you are a tty driver author converting an out of tree driver the only impact should be termios->ktermios name changes for the speed/property setting functions from your upper layers. If you are implementing your own TCGETS function before then your driver was broken already and its about to get a whole lot more painful for you so please fix it 8) Also fill in c_ispeed/ospeed on init for most devices, although the current code will do this for you anyway but I'd like eventually to lose that extra paranoia [akpm@osdl.org: bluetooth fix] [mp3@de.ibm.com: sclp fix] [mp3@de.ibm.com: warning fix for tty3270] [hugh@veritas.com: fix tty_ioctl powerpc build] [jdike@addtoit.com: uml: fix ->set_termios declaration] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Acked-by: Peter Oberparleiter <oberpar@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 10:38:45 +00:00
struct ktermios *old_termios)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
unsigned cflag;
unsigned long flags;
unsigned rocketMode;
int bits, baud, divisor;
CHANNEL_t *cp;
if (!info->tty || !info->tty->termios)
return;
cp = &info->channel;
cflag = info->tty->termios->c_cflag;
/* Byte size and parity */
if ((cflag & CSIZE) == CS8) {
sSetData8(cp);
bits = 10;
} else {
sSetData7(cp);
bits = 9;
}
if (cflag & CSTOPB) {
sSetStop2(cp);
bits++;
} else {
sSetStop1(cp);
}
if (cflag & PARENB) {
sEnParity(cp);
bits++;
if (cflag & PARODD) {
sSetOddParity(cp);
} else {
sSetEvenParity(cp);
}
} else {
sDisParity(cp);
}
/* baud rate */
baud = tty_get_baud_rate(info->tty);
if (!baud)
baud = 9600;
divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1;
if ((divisor >= 8192 || divisor < 0) && old_termios) {
info->tty->termios->c_cflag &= ~CBAUD;
info->tty->termios->c_cflag |=
(old_termios->c_cflag & CBAUD);
baud = tty_get_baud_rate(info->tty);
if (!baud)
baud = 9600;
divisor = (rp_baud_base[info->board] / baud) - 1;
}
if (divisor >= 8192 || divisor < 0) {
baud = 9600;
divisor = (rp_baud_base[info->board] / baud) - 1;
}
info->cps = baud / bits;
sSetBaud(cp, divisor);
if (cflag & CRTSCTS) {
info->intmask |= DELTA_CTS;
sEnCTSFlowCtl(cp);
} else {
info->intmask &= ~DELTA_CTS;
sDisCTSFlowCtl(cp);
}
if (cflag & CLOCAL) {
info->intmask &= ~DELTA_CD;
} else {
spin_lock_irqsave(&info->slock, flags);
if (sGetChanStatus(cp) & CD_ACT)
info->cd_status = 1;
else
info->cd_status = 0;
info->intmask |= DELTA_CD;
spin_unlock_irqrestore(&info->slock, flags);
}
/*
* Handle software flow control in the board
*/
#ifdef ROCKET_SOFT_FLOW
if (I_IXON(info->tty)) {
sEnTxSoftFlowCtl(cp);
if (I_IXANY(info->tty)) {
sEnIXANY(cp);
} else {
sDisIXANY(cp);
}
sSetTxXONChar(cp, START_CHAR(info->tty));
sSetTxXOFFChar(cp, STOP_CHAR(info->tty));
} else {
sDisTxSoftFlowCtl(cp);
sDisIXANY(cp);
sClrTxXOFF(cp);
}
#endif
/*
* Set up ignore/read mask words
*/
info->read_status_mask = STMRCVROVRH | 0xFF;
if (I_INPCK(info->tty))
info->read_status_mask |= STMFRAMEH | STMPARITYH;
if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
info->read_status_mask |= STMBREAKH;
/*
* Characters to ignore
*/
info->ignore_status_mask = 0;
if (I_IGNPAR(info->tty))
info->ignore_status_mask |= STMFRAMEH | STMPARITYH;
if (I_IGNBRK(info->tty)) {
info->ignore_status_mask |= STMBREAKH;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too. (For real raw support).
*/
if (I_IGNPAR(info->tty))
info->ignore_status_mask |= STMRCVROVRH;
}
rocketMode = info->flags & ROCKET_MODE_MASK;
if ((info->flags & ROCKET_RTS_TOGGLE)
|| (rocketMode == ROCKET_MODE_RS485))
sEnRTSToggle(cp);
else
sDisRTSToggle(cp);
sSetRTS(&info->channel);
if (cp->CtlP->boardType == ROCKET_TYPE_PC104) {
switch (rocketMode) {
case ROCKET_MODE_RS485:
sSetInterfaceMode(cp, InterfaceModeRS485);
break;
case ROCKET_MODE_RS422:
sSetInterfaceMode(cp, InterfaceModeRS422);
break;
case ROCKET_MODE_RS232:
default:
if (info->flags & ROCKET_RTS_TOGGLE)
sSetInterfaceMode(cp, InterfaceModeRS232T);
else
sSetInterfaceMode(cp, InterfaceModeRS232);
break;
}
}
}
/* info->count is considered critical, protected by spinlocks. */
static int block_til_ready(struct tty_struct *tty, struct file *filp,
struct r_port *info)
{
DECLARE_WAITQUEUE(wait, current);
int retval;
int do_clocal = 0, extra_count = 0;
unsigned long flags;
/*
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
if (tty_hung_up_p(filp))
return ((info->flags & ROCKET_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS);
if (info->flags & ROCKET_CLOSING) {
Char: rocket, switch sleep_on to completion rocket, switch sleep_on to completion - sleep_on is deprecated and racy, use completion instead - also check retval of interruptible function and return ERESTARTSYS eventually Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:25 +00:00
if (wait_for_completion_interruptible(&info->close_wait))
return -ERESTARTSYS;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
return ((info->flags & ROCKET_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS);
}
/*
* If non-blocking mode is set, or the port is not enabled,
* then make the check up front and then exit.
*/
if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) {
info->flags |= ROCKET_NORMAL_ACTIVE;
return 0;
}
if (tty->termios->c_cflag & CLOCAL)
do_clocal = 1;
/*
* Block waiting for the carrier detect and the line to become free. While we are in
* this loop, info->count is dropped by one, so that rp_close() knows when to free things.
* We restore it upon exit, either normal or abnormal.
*/
retval = 0;
add_wait_queue(&info->open_wait, &wait);
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->count);
#endif
spin_lock_irqsave(&info->slock, flags);
#ifdef ROCKET_DISABLE_SIMUSAGE
info->flags |= ROCKET_NORMAL_ACTIVE;
#else
if (!tty_hung_up_p(filp)) {
extra_count = 1;
info->count--;
}
#endif
info->blocked_open++;
spin_unlock_irqrestore(&info->slock, flags);
while (1) {
if (tty->termios->c_cflag & CBAUD) {
sSetDTR(&info->channel);
sSetRTS(&info->channel);
}
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) || !(info->flags & ROCKET_INITIALIZED)) {
if (info->flags & ROCKET_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
if (!(info->flags & ROCKET_CLOSING) && (do_clocal || (sGetChanStatusLo(&info->channel) & CD_ACT)))
break;
if (signal_pending(current)) {
retval = -ERESTARTSYS;
break;
}
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "block_til_ready blocking: ttyR%d, count = %d, flags=0x%0x\n",
info->line, info->count, info->flags);
#endif
schedule(); /* Don't hold spinlock here, will hang PC */
}
drivers/char: use __set_current_state() use __set_current_state(TASK_*) instead of current->state = TASK_*, Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:30:52 +00:00
__set_current_state(TASK_RUNNING);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
remove_wait_queue(&info->open_wait, &wait);
spin_lock_irqsave(&info->slock, flags);
if (extra_count)
info->count++;
info->blocked_open--;
spin_unlock_irqrestore(&info->slock, flags);
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "block_til_ready after blocking: ttyR%d, count = %d\n",
info->line, info->count);
#endif
if (retval)
return retval;
info->flags |= ROCKET_NORMAL_ACTIVE;
return 0;
}
/*
* Exception handler that opens a serial port. Creates xmit_buf storage, fills in
* port's r_port struct. Initializes the port hardware.
*/
static int rp_open(struct tty_struct *tty, struct file *filp)
{
struct r_port *info;
int line = 0, retval;
CHANNEL_t *cp;
unsigned long page;
line = TTY_GET_LINE(tty);
if ((line < 0) || (line >= MAX_RP_PORTS) || ((info = rp_table[line]) == NULL))
return -ENXIO;
page = __get_free_page(GFP_KERNEL);
if (!page)
return -ENOMEM;
if (info->flags & ROCKET_CLOSING) {
Char: rocket, switch sleep_on to completion rocket, switch sleep_on to completion - sleep_on is deprecated and racy, use completion instead - also check retval of interruptible function and return ERESTARTSYS eventually Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:25 +00:00
retval = wait_for_completion_interruptible(&info->close_wait);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
free_page(page);
Char: rocket, switch sleep_on to completion rocket, switch sleep_on to completion - sleep_on is deprecated and racy, use completion instead - also check retval of interruptible function and return ERESTARTSYS eventually Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:25 +00:00
if (retval)
return retval;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
return ((info->flags & ROCKET_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS);
}
/*
* We must not sleep from here until the port is marked fully in use.
*/
if (info->xmit_buf)
free_page(page);
else
info->xmit_buf = (unsigned char *) page;
tty->driver_data = info;
info->tty = tty;
if (info->count++ == 0) {
atomic_inc(&rp_num_ports_open);
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "rocket mod++ = %d...", atomic_read(&rp_num_ports_open));
#endif
}
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->count);
#endif
/*
* Info->count is now 1; so it's safe to sleep now.
*/
if ((info->flags & ROCKET_INITIALIZED) == 0) {
cp = &info->channel;
sSetRxTrigger(cp, TRIG_1);
if (sGetChanStatus(cp) & CD_ACT)
info->cd_status = 1;
else
info->cd_status = 0;
sDisRxStatusMode(cp);
sFlushRxFIFO(cp);
sFlushTxFIFO(cp);
sEnInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
sSetRxTrigger(cp, TRIG_1);
sGetChanStatus(cp);
sDisRxStatusMode(cp);
sClrTxXOFF(cp);
sDisCTSFlowCtl(cp);
sDisTxSoftFlowCtl(cp);
sEnRxFIFO(cp);
sEnTransmit(cp);
info->flags |= ROCKET_INITIALIZED;
/*
* Set up the tty->alt_speed kludge
*/
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
info->tty->alt_speed = 57600;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
info->tty->alt_speed = 115200;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
info->tty->alt_speed = 230400;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
info->tty->alt_speed = 460800;
configure_r_port(info, NULL);
if (tty->termios->c_cflag & CBAUD) {
sSetDTR(cp);
sSetRTS(cp);
}
}
/* Starts (or resets) the maint polling loop */
mod_timer(&rocket_timer, jiffies + POLL_PERIOD);
retval = block_til_ready(tty, filp, info);
if (retval) {
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "rp_open returning after block_til_ready with %d\n", retval);
#endif
return retval;
}
return 0;
}
/*
* Exception handler that closes a serial port. info->count is considered critical.
*/
static void rp_close(struct tty_struct *tty, struct file *filp)
{
struct r_port *info = (struct r_port *) tty->driver_data;
unsigned long flags;
int timeout;
CHANNEL_t *cp;
if (rocket_paranoia_check(info, "rp_close"))
return;
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->count);
#endif
if (tty_hung_up_p(filp))
return;
spin_lock_irqsave(&info->slock, flags);
if ((tty->count == 1) && (info->count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
* structure will be freed. Info->count should always
* be one in these conditions. If it's greater than
* one, we've got real problems, since it means the
* serial port won't be shutdown.
*/
printk(KERN_INFO "rp_close: bad serial port count; tty->count is 1, "
"info->count is %d\n", info->count);
info->count = 1;
}
if (--info->count < 0) {
printk(KERN_INFO "rp_close: bad serial port count for ttyR%d: %d\n",
info->line, info->count);
info->count = 0;
}
if (info->count) {
spin_unlock_irqrestore(&info->slock, flags);
return;
}
info->flags |= ROCKET_CLOSING;
spin_unlock_irqrestore(&info->slock, flags);
cp = &info->channel;
/*
* Notify the line discpline to only process XON/XOFF characters
*/
tty->closing = 1;
/*
* If transmission was throttled by the application request,
* just flush the xmit buffer.
*/
if (tty->flow_stopped)
rp_flush_buffer(tty);
/*
* Wait for the transmit buffer to clear
*/
if (info->closing_wait != ROCKET_CLOSING_WAIT_NONE)
tty_wait_until_sent(tty, info->closing_wait);
/*
* Before we drop DTR, make sure the UART transmitter
* has completely drained; this is especially
* important if there is a transmit FIFO!
*/
timeout = (sGetTxCnt(cp) + 1) * HZ / info->cps;
if (timeout == 0)
timeout = 1;
rp_wait_until_sent(tty, timeout);
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
sDisTransmit(cp);
sDisInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
sDisCTSFlowCtl(cp);
sDisTxSoftFlowCtl(cp);
sClrTxXOFF(cp);
sFlushRxFIFO(cp);
sFlushTxFIFO(cp);
sClrRTS(cp);
if (C_HUPCL(tty))
sClrDTR(cp);
if (TTY_DRIVER_FLUSH_BUFFER_EXISTS(tty))
TTY_DRIVER_FLUSH_BUFFER(tty);
tty_ldisc_flush(tty);
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
if (info->blocked_open) {
if (info->close_delay) {
msleep_interruptible(jiffies_to_msecs(info->close_delay));
}
wake_up_interruptible(&info->open_wait);
} else {
if (info->xmit_buf) {
free_page((unsigned long) info->xmit_buf);
info->xmit_buf = NULL;
}
}
info->flags &= ~(ROCKET_INITIALIZED | ROCKET_CLOSING | ROCKET_NORMAL_ACTIVE);
tty->closing = 0;
Char: rocket, switch sleep_on to completion rocket, switch sleep_on to completion - sleep_on is deprecated and racy, use completion instead - also check retval of interruptible function and return ERESTARTSYS eventually Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:25 +00:00
complete_all(&info->close_wait);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
atomic_dec(&rp_num_ports_open);
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "rocket mod-- = %d...", atomic_read(&rp_num_ports_open));
printk(KERN_INFO "rp_close ttyR%d complete shutdown\n", info->line);
#endif
}
static void rp_set_termios(struct tty_struct *tty,
[PATCH] tty: switch to ktermios This is the grungy swap all the occurrences in the right places patch that goes with the updates. At this point we have the same functionality as before (except that sgttyb() returns speeds not zero) and are ready to begin turning new stuff on providing nobody reports lots of bugs If you are a tty driver author converting an out of tree driver the only impact should be termios->ktermios name changes for the speed/property setting functions from your upper layers. If you are implementing your own TCGETS function before then your driver was broken already and its about to get a whole lot more painful for you so please fix it 8) Also fill in c_ispeed/ospeed on init for most devices, although the current code will do this for you anyway but I'd like eventually to lose that extra paranoia [akpm@osdl.org: bluetooth fix] [mp3@de.ibm.com: sclp fix] [mp3@de.ibm.com: warning fix for tty3270] [hugh@veritas.com: fix tty_ioctl powerpc build] [jdike@addtoit.com: uml: fix ->set_termios declaration] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Acked-by: Peter Oberparleiter <oberpar@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 10:38:45 +00:00
struct ktermios *old_termios)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
unsigned cflag;
if (rocket_paranoia_check(info, "rp_set_termios"))
return;
cflag = tty->termios->c_cflag;
if (cflag == old_termios->c_cflag)
return;
/*
* This driver doesn't support CS5 or CS6
*/
if (((cflag & CSIZE) == CS5) || ((cflag & CSIZE) == CS6))
tty->termios->c_cflag =
((cflag & ~CSIZE) | (old_termios->c_cflag & CSIZE));
configure_r_port(info, old_termios);
cp = &info->channel;
/* Handle transition to B0 status */
if ((old_termios->c_cflag & CBAUD) && !(tty->termios->c_cflag & CBAUD)) {
sClrDTR(cp);
sClrRTS(cp);
}
/* Handle transition away from B0 status */
if (!(old_termios->c_cflag & CBAUD) && (tty->termios->c_cflag & CBAUD)) {
if (!tty->hw_stopped || !(tty->termios->c_cflag & CRTSCTS))
sSetRTS(cp);
sSetDTR(cp);
}
if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios->c_cflag & CRTSCTS)) {
tty->hw_stopped = 0;
rp_start(tty);
}
}
static void rp_break(struct tty_struct *tty, int break_state)
{
struct r_port *info = (struct r_port *) tty->driver_data;
unsigned long flags;
if (rocket_paranoia_check(info, "rp_break"))
return;
spin_lock_irqsave(&info->slock, flags);
if (break_state == -1)
sSendBreak(&info->channel);
else
sClrBreak(&info->channel);
spin_unlock_irqrestore(&info->slock, flags);
}
/*
* sGetChanRI used to be a macro in rocket_int.h. When the functionality for
* the UPCI boards was added, it was decided to make this a function because
* the macro was getting too complicated. All cases except the first one
* (UPCIRingInd) are taken directly from the original macro.
*/
static int sGetChanRI(CHANNEL_T * ChP)
{
CONTROLLER_t *CtlP = ChP->CtlP;
int ChanNum = ChP->ChanNum;
int RingInd = 0;
if (CtlP->UPCIRingInd)
RingInd = !(sInB(CtlP->UPCIRingInd) & sBitMapSetTbl[ChanNum]);
else if (CtlP->AltChanRingIndicator)
RingInd = sInB((ByteIO_t) (ChP->ChanStat + 8)) & DSR_ACT;
else if (CtlP->boardType == ROCKET_TYPE_PC104)
RingInd = !(sInB(CtlP->AiopIO[3]) & sBitMapSetTbl[ChanNum]);
return RingInd;
}
/********************************************************************************************/
/* Here are the routines used by rp_ioctl. These are all called from exception handlers. */
/*
* Returns the state of the serial modem control lines. These next 2 functions
* are the way kernel versions > 2.5 handle modem control lines rather than IOCTLs.
*/
static int rp_tiocmget(struct tty_struct *tty, struct file *file)
{
struct r_port *info = (struct r_port *)tty->driver_data;
unsigned int control, result, ChanStatus;
ChanStatus = sGetChanStatusLo(&info->channel);
control = info->channel.TxControl[3];
result = ((control & SET_RTS) ? TIOCM_RTS : 0) |
((control & SET_DTR) ? TIOCM_DTR : 0) |
((ChanStatus & CD_ACT) ? TIOCM_CAR : 0) |
(sGetChanRI(&info->channel) ? TIOCM_RNG : 0) |
((ChanStatus & DSR_ACT) ? TIOCM_DSR : 0) |
((ChanStatus & CTS_ACT) ? TIOCM_CTS : 0);
return result;
}
/*
* Sets the modem control lines
*/
static int rp_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct r_port *info = (struct r_port *)tty->driver_data;
if (set & TIOCM_RTS)
info->channel.TxControl[3] |= SET_RTS;
if (set & TIOCM_DTR)
info->channel.TxControl[3] |= SET_DTR;
if (clear & TIOCM_RTS)
info->channel.TxControl[3] &= ~SET_RTS;
if (clear & TIOCM_DTR)
info->channel.TxControl[3] &= ~SET_DTR;
sOutDW(info->channel.IndexAddr, *(DWord_t *) & (info->channel.TxControl[0]));
return 0;
}
static int get_config(struct r_port *info, struct rocket_config __user *retinfo)
{
struct rocket_config tmp;
if (!retinfo)
return -EFAULT;
memset(&tmp, 0, sizeof (tmp));
tmp.line = info->line;
tmp.flags = info->flags;
tmp.close_delay = info->close_delay;
tmp.closing_wait = info->closing_wait;
tmp.port = rcktpt_io_addr[(info->line >> 5) & 3];
if (copy_to_user(retinfo, &tmp, sizeof (*retinfo)))
return -EFAULT;
return 0;
}
static int set_config(struct r_port *info, struct rocket_config __user *new_info)
{
struct rocket_config new_serial;
if (copy_from_user(&new_serial, new_info, sizeof (new_serial)))
return -EFAULT;
if (!capable(CAP_SYS_ADMIN))
{
if ((new_serial.flags & ~ROCKET_USR_MASK) != (info->flags & ~ROCKET_USR_MASK))
return -EPERM;
info->flags = ((info->flags & ~ROCKET_USR_MASK) | (new_serial.flags & ROCKET_USR_MASK));
configure_r_port(info, NULL);
return 0;
}
info->flags = ((info->flags & ~ROCKET_FLAGS) | (new_serial.flags & ROCKET_FLAGS));
info->close_delay = new_serial.close_delay;
info->closing_wait = new_serial.closing_wait;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
info->tty->alt_speed = 57600;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
info->tty->alt_speed = 115200;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
info->tty->alt_speed = 230400;
if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
info->tty->alt_speed = 460800;
configure_r_port(info, NULL);
return 0;
}
/*
* This function fills in a rocket_ports struct with information
* about what boards/ports are in the system. This info is passed
* to user space. See setrocket.c where the info is used to create
* the /dev/ttyRx ports.
*/
static int get_ports(struct r_port *info, struct rocket_ports __user *retports)
{
struct rocket_ports tmp;
int board;
if (!retports)
return -EFAULT;
memset(&tmp, 0, sizeof (tmp));
tmp.tty_major = rocket_driver->major;
for (board = 0; board < 4; board++) {
tmp.rocketModel[board].model = rocketModel[board].model;
strcpy(tmp.rocketModel[board].modelString, rocketModel[board].modelString);
tmp.rocketModel[board].numPorts = rocketModel[board].numPorts;
tmp.rocketModel[board].loadrm2 = rocketModel[board].loadrm2;
tmp.rocketModel[board].startingPortNumber = rocketModel[board].startingPortNumber;
}
if (copy_to_user(retports, &tmp, sizeof (*retports)))
return -EFAULT;
return 0;
}
static int reset_rm2(struct r_port *info, void __user *arg)
{
int reset;
if (copy_from_user(&reset, arg, sizeof (int)))
return -EFAULT;
if (reset)
reset = 1;
if (rcktpt_type[info->board] != ROCKET_TYPE_MODEMII &&
rcktpt_type[info->board] != ROCKET_TYPE_MODEMIII)
return -EINVAL;
if (info->ctlp->BusType == isISA)
sModemReset(info->ctlp, info->chan, reset);
else
sPCIModemReset(info->ctlp, info->chan, reset);
return 0;
}
static int get_version(struct r_port *info, struct rocket_version __user *retvers)
{
if (copy_to_user(retvers, &driver_version, sizeof (*retvers)))
return -EFAULT;
return 0;
}
/* IOCTL call handler into the driver */
static int rp_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct r_port *info = (struct r_port *) tty->driver_data;
void __user *argp = (void __user *)arg;
if (cmd != RCKP_GET_PORTS && rocket_paranoia_check(info, "rp_ioctl"))
return -ENXIO;
switch (cmd) {
case RCKP_GET_STRUCT:
if (copy_to_user(argp, info, sizeof (struct r_port)))
return -EFAULT;
return 0;
case RCKP_GET_CONFIG:
return get_config(info, argp);
case RCKP_SET_CONFIG:
return set_config(info, argp);
case RCKP_GET_PORTS:
return get_ports(info, argp);
case RCKP_RESET_RM2:
return reset_rm2(info, argp);
case RCKP_GET_VERSION:
return get_version(info, argp);
default:
return -ENOIOCTLCMD;
}
return 0;
}
static void rp_send_xchar(struct tty_struct *tty, char ch)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
if (rocket_paranoia_check(info, "rp_send_xchar"))
return;
cp = &info->channel;
if (sGetTxCnt(cp))
sWriteTxPrioByte(cp, ch);
else
sWriteTxByte(sGetTxRxDataIO(cp), ch);
}
static void rp_throttle(struct tty_struct *tty)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
#ifdef ROCKET_DEBUG_THROTTLE
printk(KERN_INFO "throttle %s: %d....\n", tty->name,
tty->ldisc.chars_in_buffer(tty));
#endif
if (rocket_paranoia_check(info, "rp_throttle"))
return;
cp = &info->channel;
if (I_IXOFF(tty))
rp_send_xchar(tty, STOP_CHAR(tty));
sClrRTS(&info->channel);
}
static void rp_unthrottle(struct tty_struct *tty)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
#ifdef ROCKET_DEBUG_THROTTLE
printk(KERN_INFO "unthrottle %s: %d....\n", tty->name,
tty->ldisc.chars_in_buffer(tty));
#endif
if (rocket_paranoia_check(info, "rp_throttle"))
return;
cp = &info->channel;
if (I_IXOFF(tty))
rp_send_xchar(tty, START_CHAR(tty));
sSetRTS(&info->channel);
}
/*
* ------------------------------------------------------------
* rp_stop() and rp_start()
*
* This routines are called before setting or resetting tty->stopped.
* They enable or disable transmitter interrupts, as necessary.
* ------------------------------------------------------------
*/
static void rp_stop(struct tty_struct *tty)
{
struct r_port *info = (struct r_port *) tty->driver_data;
#ifdef ROCKET_DEBUG_FLOW
printk(KERN_INFO "stop %s: %d %d....\n", tty->name,
info->xmit_cnt, info->xmit_fifo_room);
#endif
if (rocket_paranoia_check(info, "rp_stop"))
return;
if (sGetTxCnt(&info->channel))
sDisTransmit(&info->channel);
}
static void rp_start(struct tty_struct *tty)
{
struct r_port *info = (struct r_port *) tty->driver_data;
#ifdef ROCKET_DEBUG_FLOW
printk(KERN_INFO "start %s: %d %d....\n", tty->name,
info->xmit_cnt, info->xmit_fifo_room);
#endif
if (rocket_paranoia_check(info, "rp_stop"))
return;
sEnTransmit(&info->channel);
set_bit((info->aiop * 8) + info->chan,
(void *) &xmit_flags[info->board]);
}
/*
* rp_wait_until_sent() --- wait until the transmitter is empty
*/
static void rp_wait_until_sent(struct tty_struct *tty, int timeout)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
unsigned long orig_jiffies;
int check_time, exit_time;
int txcnt;
if (rocket_paranoia_check(info, "rp_wait_until_sent"))
return;
cp = &info->channel;
orig_jiffies = jiffies;
#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
printk(KERN_INFO "In RP_wait_until_sent(%d) (jiff=%lu)...", timeout,
jiffies);
printk(KERN_INFO "cps=%d...", info->cps);
#endif
while (1) {
txcnt = sGetTxCnt(cp);
if (!txcnt) {
if (sGetChanStatusLo(cp) & TXSHRMT)
break;
check_time = (HZ / info->cps) / 5;
} else {
check_time = HZ * txcnt / info->cps;
}
if (timeout) {
exit_time = orig_jiffies + timeout - jiffies;
if (exit_time <= 0)
break;
if (exit_time < check_time)
check_time = exit_time;
}
if (check_time == 0)
check_time = 1;
#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
printk(KERN_INFO "txcnt = %d (jiff=%lu,check=%d)...", txcnt, jiffies, check_time);
#endif
msleep_interruptible(jiffies_to_msecs(check_time));
if (signal_pending(current))
break;
}
drivers/char: use __set_current_state() use __set_current_state(TASK_*) instead of current->state = TASK_*, Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:30:52 +00:00
__set_current_state(TASK_RUNNING);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
printk(KERN_INFO "txcnt = %d (jiff=%lu)...done\n", txcnt, jiffies);
#endif
}
/*
* rp_hangup() --- called by tty_hangup() when a hangup is signaled.
*/
static void rp_hangup(struct tty_struct *tty)
{
CHANNEL_t *cp;
struct r_port *info = (struct r_port *) tty->driver_data;
if (rocket_paranoia_check(info, "rp_hangup"))
return;
#if (defined(ROCKET_DEBUG_OPEN) || defined(ROCKET_DEBUG_HANGUP))
printk(KERN_INFO "rp_hangup of ttyR%d...", info->line);
#endif
rp_flush_buffer(tty);
if (info->flags & ROCKET_CLOSING)
return;
if (info->count)
atomic_dec(&rp_num_ports_open);
clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
info->count = 0;
info->flags &= ~ROCKET_NORMAL_ACTIVE;
info->tty = NULL;
cp = &info->channel;
sDisRxFIFO(cp);
sDisTransmit(cp);
sDisInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
sDisCTSFlowCtl(cp);
sDisTxSoftFlowCtl(cp);
sClrTxXOFF(cp);
info->flags &= ~ROCKET_INITIALIZED;
wake_up_interruptible(&info->open_wait);
}
/*
* Exception handler - write char routine. The RocketPort driver uses a
* double-buffering strategy, with the twist that if the in-memory CPU
* buffer is empty, and there's space in the transmit FIFO, the
* writing routines will write directly to transmit FIFO.
* Write buffer and counters protected by spinlocks
*/
static void rp_put_char(struct tty_struct *tty, unsigned char ch)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
unsigned long flags;
if (rocket_paranoia_check(info, "rp_put_char"))
return;
use mutex instead of semaphore in RocketPort driver The RocketPort driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:32:00 +00:00
/*
* Grab the port write mutex, locking out other processes that try to
* write to this port
*/
mutex_lock(&info->write_mtx);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#ifdef ROCKET_DEBUG_WRITE
printk(KERN_INFO "rp_put_char %c...", ch);
#endif
spin_lock_irqsave(&info->slock, flags);
cp = &info->channel;
if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room == 0)
info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
if (tty->stopped || tty->hw_stopped || info->xmit_fifo_room == 0 || info->xmit_cnt != 0) {
info->xmit_buf[info->xmit_head++] = ch;
info->xmit_head &= XMIT_BUF_SIZE - 1;
info->xmit_cnt++;
set_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
} else {
sOutB(sGetTxRxDataIO(cp), ch);
info->xmit_fifo_room--;
}
spin_unlock_irqrestore(&info->slock, flags);
use mutex instead of semaphore in RocketPort driver The RocketPort driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:32:00 +00:00
mutex_unlock(&info->write_mtx);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
/*
* Exception handler - write routine, called when user app writes to the device.
use mutex instead of semaphore in RocketPort driver The RocketPort driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:32:00 +00:00
* A per port write mutex is used to protect from another process writing to
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
* this port at the same time. This other process could be running on the other CPU
* or get control of the CPU if the copy_from_user() blocks due to a page fault (swapped out).
* Spinlocks protect the info xmit members.
*/
static int rp_write(struct tty_struct *tty,
const unsigned char *buf, int count)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
const unsigned char *b;
int c, retval = 0;
unsigned long flags;
if (count <= 0 || rocket_paranoia_check(info, "rp_write"))
return 0;
rocket.c: fix unchecked mutex_lock_interruptible() Check the return of mutex_lock_interruptible() in drivers/char/rocket.c and return ERESTARTSYS if we were interrupted. Signed-off-by: Satyam Sharma <satyam.sharma@gmail.com> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 06:40:07 +00:00
if (mutex_lock_interruptible(&info->write_mtx))
return -ERESTARTSYS;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#ifdef ROCKET_DEBUG_WRITE
printk(KERN_INFO "rp_write %d chars...", count);
#endif
cp = &info->channel;
if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room < count)
info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
/*
* If the write queue for the port is empty, and there is FIFO space, stuff bytes
* into FIFO. Use the write queue for temp storage.
*/
if (!tty->stopped && !tty->hw_stopped && info->xmit_cnt == 0 && info->xmit_fifo_room > 0) {
c = min(count, info->xmit_fifo_room);
b = buf;
/* Push data into FIFO, 2 bytes at a time */
sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) b, c / 2);
/* If there is a byte remaining, write it */
if (c & 1)
sOutB(sGetTxRxDataIO(cp), b[c - 1]);
retval += c;
buf += c;
count -= c;
spin_lock_irqsave(&info->slock, flags);
info->xmit_fifo_room -= c;
spin_unlock_irqrestore(&info->slock, flags);
}
/* If count is zero, we wrote it all and are done */
if (!count)
goto end;
/* Write remaining data into the port's xmit_buf */
while (1) {
if (info->tty == 0) /* Seemingly obligatory check... */
goto end;
c = min(count, min(XMIT_BUF_SIZE - info->xmit_cnt - 1, XMIT_BUF_SIZE - info->xmit_head));
if (c <= 0)
break;
b = buf;
memcpy(info->xmit_buf + info->xmit_head, b, c);
spin_lock_irqsave(&info->slock, flags);
info->xmit_head =
(info->xmit_head + c) & (XMIT_BUF_SIZE - 1);
info->xmit_cnt += c;
spin_unlock_irqrestore(&info->slock, flags);
buf += c;
count -= c;
retval += c;
}
if ((retval > 0) && !tty->stopped && !tty->hw_stopped)
set_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
end:
if (info->xmit_cnt < WAKEUP_CHARS) {
tty_wakeup(tty);
#ifdef ROCKETPORT_HAVE_POLL_WAIT
wake_up_interruptible(&tty->poll_wait);
#endif
}
use mutex instead of semaphore in RocketPort driver The RocketPort driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:32:00 +00:00
mutex_unlock(&info->write_mtx);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
return retval;
}
/*
* Return the number of characters that can be sent. We estimate
* only using the in-memory transmit buffer only, and ignore the
* potential space in the transmit FIFO.
*/
static int rp_write_room(struct tty_struct *tty)
{
struct r_port *info = (struct r_port *) tty->driver_data;
int ret;
if (rocket_paranoia_check(info, "rp_write_room"))
return 0;
ret = XMIT_BUF_SIZE - info->xmit_cnt - 1;
if (ret < 0)
ret = 0;
#ifdef ROCKET_DEBUG_WRITE
printk(KERN_INFO "rp_write_room returns %d...", ret);
#endif
return ret;
}
/*
* Return the number of characters in the buffer. Again, this only
* counts those characters in the in-memory transmit buffer.
*/
static int rp_chars_in_buffer(struct tty_struct *tty)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
if (rocket_paranoia_check(info, "rp_chars_in_buffer"))
return 0;
cp = &info->channel;
#ifdef ROCKET_DEBUG_WRITE
printk(KERN_INFO "rp_chars_in_buffer returns %d...", info->xmit_cnt);
#endif
return info->xmit_cnt;
}
/*
* Flushes the TX fifo for a port, deletes data in the xmit_buf stored in the
* r_port struct for the port. Note that spinlock are used to protect info members,
* do not call this function if the spinlock is already held.
*/
static void rp_flush_buffer(struct tty_struct *tty)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
unsigned long flags;
if (rocket_paranoia_check(info, "rp_flush_buffer"))
return;
spin_lock_irqsave(&info->slock, flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
spin_unlock_irqrestore(&info->slock, flags);
#ifdef ROCKETPORT_HAVE_POLL_WAIT
wake_up_interruptible(&tty->poll_wait);
#endif
tty_wakeup(tty);
cp = &info->channel;
sFlushTxFIFO(cp);
}
#ifdef CONFIG_PCI
Char: rocket, add MODULE_DEVICE_TABLE rocket, add MODULE_DEVICE_TABLE Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 07:27:05 +00:00
static struct pci_device_id __devinitdata rocket_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_RP, PCI_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(pci, rocket_pci_ids);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
* Called when a PCI card is found. Retrieves and stores model information,
* init's aiopic and serial port hardware.
* Inputs: i is the board number (0-n)
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static __init int register_PCI(int i, struct pci_dev *dev)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
int num_aiops, aiop, max_num_aiops, num_chan, chan;
unsigned int aiopio[MAX_AIOPS_PER_BOARD];
char *str, *board_type;
CONTROLLER_t *ctlp;
int fast_clock = 0;
int altChanRingIndicator = 0;
int ports_per_aiop = 8;
WordIO_t ConfigIO = 0;
ByteIO_t UPCIRingInd = 0;
if (!dev || pci_enable_device(dev))
return 0;
rcktpt_io_addr[i] = pci_resource_start(dev, 0);
rcktpt_type[i] = ROCKET_TYPE_NORMAL;
rocketModel[i].loadrm2 = 0;
rocketModel[i].startingPortNumber = nextLineNumber;
/* Depending on the model, set up some config variables */
switch (dev->device) {
case PCI_DEVICE_ID_RP4QUAD:
str = "Quadcable";
max_num_aiops = 1;
ports_per_aiop = 4;
rocketModel[i].model = MODEL_RP4QUAD;
strcpy(rocketModel[i].modelString, "RocketPort 4 port w/quad cable");
rocketModel[i].numPorts = 4;
break;
case PCI_DEVICE_ID_RP8OCTA:
str = "Octacable";
max_num_aiops = 1;
rocketModel[i].model = MODEL_RP8OCTA;
strcpy(rocketModel[i].modelString, "RocketPort 8 port w/octa cable");
rocketModel[i].numPorts = 8;
break;
case PCI_DEVICE_ID_URP8OCTA:
str = "Octacable";
max_num_aiops = 1;
rocketModel[i].model = MODEL_UPCI_RP8OCTA;
strcpy(rocketModel[i].modelString, "RocketPort UPCI 8 port w/octa cable");
rocketModel[i].numPorts = 8;
break;
case PCI_DEVICE_ID_RP8INTF:
str = "8";
max_num_aiops = 1;
rocketModel[i].model = MODEL_RP8INTF;
strcpy(rocketModel[i].modelString, "RocketPort 8 port w/external I/F");
rocketModel[i].numPorts = 8;
break;
case PCI_DEVICE_ID_URP8INTF:
str = "8";
max_num_aiops = 1;
rocketModel[i].model = MODEL_UPCI_RP8INTF;
strcpy(rocketModel[i].modelString, "RocketPort UPCI 8 port w/external I/F");
rocketModel[i].numPorts = 8;
break;
case PCI_DEVICE_ID_RP8J:
str = "8J";
max_num_aiops = 1;
rocketModel[i].model = MODEL_RP8J;
strcpy(rocketModel[i].modelString, "RocketPort 8 port w/RJ11 connectors");
rocketModel[i].numPorts = 8;
break;
case PCI_DEVICE_ID_RP4J:
str = "4J";
max_num_aiops = 1;
ports_per_aiop = 4;
rocketModel[i].model = MODEL_RP4J;
strcpy(rocketModel[i].modelString, "RocketPort 4 port w/RJ45 connectors");
rocketModel[i].numPorts = 4;
break;
case PCI_DEVICE_ID_RP8SNI:
str = "8 (DB78 Custom)";
max_num_aiops = 1;
rocketModel[i].model = MODEL_RP8SNI;
strcpy(rocketModel[i].modelString, "RocketPort 8 port w/ custom DB78");
rocketModel[i].numPorts = 8;
break;
case PCI_DEVICE_ID_RP16SNI:
str = "16 (DB78 Custom)";
max_num_aiops = 2;
rocketModel[i].model = MODEL_RP16SNI;
strcpy(rocketModel[i].modelString, "RocketPort 16 port w/ custom DB78");
rocketModel[i].numPorts = 16;
break;
case PCI_DEVICE_ID_RP16INTF:
str = "16";
max_num_aiops = 2;
rocketModel[i].model = MODEL_RP16INTF;
strcpy(rocketModel[i].modelString, "RocketPort 16 port w/external I/F");
rocketModel[i].numPorts = 16;
break;
case PCI_DEVICE_ID_URP16INTF:
str = "16";
max_num_aiops = 2;
rocketModel[i].model = MODEL_UPCI_RP16INTF;
strcpy(rocketModel[i].modelString, "RocketPort UPCI 16 port w/external I/F");
rocketModel[i].numPorts = 16;
break;
case PCI_DEVICE_ID_CRP16INTF:
str = "16";
max_num_aiops = 2;
rocketModel[i].model = MODEL_CPCI_RP16INTF;
strcpy(rocketModel[i].modelString, "RocketPort Compact PCI 16 port w/external I/F");
rocketModel[i].numPorts = 16;
break;
case PCI_DEVICE_ID_RP32INTF:
str = "32";
max_num_aiops = 4;
rocketModel[i].model = MODEL_RP32INTF;
strcpy(rocketModel[i].modelString, "RocketPort 32 port w/external I/F");
rocketModel[i].numPorts = 32;
break;
case PCI_DEVICE_ID_URP32INTF:
str = "32";
max_num_aiops = 4;
rocketModel[i].model = MODEL_UPCI_RP32INTF;
strcpy(rocketModel[i].modelString, "RocketPort UPCI 32 port w/external I/F");
rocketModel[i].numPorts = 32;
break;
case PCI_DEVICE_ID_RPP4:
str = "Plus Quadcable";
max_num_aiops = 1;
ports_per_aiop = 4;
altChanRingIndicator++;
fast_clock++;
rocketModel[i].model = MODEL_RPP4;
strcpy(rocketModel[i].modelString, "RocketPort Plus 4 port");
rocketModel[i].numPorts = 4;
break;
case PCI_DEVICE_ID_RPP8:
str = "Plus Octacable";
max_num_aiops = 2;
ports_per_aiop = 4;
altChanRingIndicator++;
fast_clock++;
rocketModel[i].model = MODEL_RPP8;
strcpy(rocketModel[i].modelString, "RocketPort Plus 8 port");
rocketModel[i].numPorts = 8;
break;
case PCI_DEVICE_ID_RP2_232:
str = "Plus 2 (RS-232)";
max_num_aiops = 1;
ports_per_aiop = 2;
altChanRingIndicator++;
fast_clock++;
rocketModel[i].model = MODEL_RP2_232;
strcpy(rocketModel[i].modelString, "RocketPort Plus 2 port RS232");
rocketModel[i].numPorts = 2;
break;
case PCI_DEVICE_ID_RP2_422:
str = "Plus 2 (RS-422)";
max_num_aiops = 1;
ports_per_aiop = 2;
altChanRingIndicator++;
fast_clock++;
rocketModel[i].model = MODEL_RP2_422;
strcpy(rocketModel[i].modelString, "RocketPort Plus 2 port RS422");
rocketModel[i].numPorts = 2;
break;
case PCI_DEVICE_ID_RP6M:
max_num_aiops = 1;
ports_per_aiop = 6;
str = "6-port";
Char: rocket, remove pci_read_config_dword(CLASS_REVISION) We may use pdev->revision instead of reading pci config space directly, so remove pci_read_config_dword invoking. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
/* If revision is 1, the rocketmodem flash must be loaded.
* If it is 2 it is a "socketed" version. */
if (dev->revision == 1) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
rcktpt_type[i] = ROCKET_TYPE_MODEMII;
rocketModel[i].loadrm2 = 1;
} else {
rcktpt_type[i] = ROCKET_TYPE_MODEM;
}
rocketModel[i].model = MODEL_RP6M;
strcpy(rocketModel[i].modelString, "RocketModem 6 port");
rocketModel[i].numPorts = 6;
break;
case PCI_DEVICE_ID_RP4M:
max_num_aiops = 1;
ports_per_aiop = 4;
str = "4-port";
Char: rocket, remove pci_read_config_dword(CLASS_REVISION) We may use pdev->revision instead of reading pci config space directly, so remove pci_read_config_dword invoking. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
if (dev->revision == 1) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
rcktpt_type[i] = ROCKET_TYPE_MODEMII;
rocketModel[i].loadrm2 = 1;
} else {
rcktpt_type[i] = ROCKET_TYPE_MODEM;
}
rocketModel[i].model = MODEL_RP4M;
strcpy(rocketModel[i].modelString, "RocketModem 4 port");
rocketModel[i].numPorts = 4;
break;
default:
str = "(unknown/unsupported)";
max_num_aiops = 0;
break;
}
/*
* Check for UPCI boards.
*/
switch (dev->device) {
case PCI_DEVICE_ID_URP32INTF:
case PCI_DEVICE_ID_URP8INTF:
case PCI_DEVICE_ID_URP16INTF:
case PCI_DEVICE_ID_CRP16INTF:
case PCI_DEVICE_ID_URP8OCTA:
rcktpt_io_addr[i] = pci_resource_start(dev, 2);
ConfigIO = pci_resource_start(dev, 1);
if (dev->device == PCI_DEVICE_ID_URP8OCTA) {
UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
/*
* Check for octa or quad cable.
*/
if (!
(sInW(ConfigIO + _PCI_9030_GPIO_CTRL) &
PCI_GPIO_CTRL_8PORT)) {
str = "Quadcable";
ports_per_aiop = 4;
rocketModel[i].numPorts = 4;
}
}
break;
case PCI_DEVICE_ID_UPCI_RM3_8PORT:
str = "8 ports";
max_num_aiops = 1;
rocketModel[i].model = MODEL_UPCI_RM3_8PORT;
strcpy(rocketModel[i].modelString, "RocketModem III 8 port");
rocketModel[i].numPorts = 8;
rcktpt_io_addr[i] = pci_resource_start(dev, 2);
UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
ConfigIO = pci_resource_start(dev, 1);
rcktpt_type[i] = ROCKET_TYPE_MODEMIII;
break;
case PCI_DEVICE_ID_UPCI_RM3_4PORT:
str = "4 ports";
max_num_aiops = 1;
rocketModel[i].model = MODEL_UPCI_RM3_4PORT;
strcpy(rocketModel[i].modelString, "RocketModem III 4 port");
rocketModel[i].numPorts = 4;
rcktpt_io_addr[i] = pci_resource_start(dev, 2);
UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
ConfigIO = pci_resource_start(dev, 1);
rcktpt_type[i] = ROCKET_TYPE_MODEMIII;
break;
default:
break;
}
switch (rcktpt_type[i]) {
case ROCKET_TYPE_MODEM:
board_type = "RocketModem";
break;
case ROCKET_TYPE_MODEMII:
board_type = "RocketModem II";
break;
case ROCKET_TYPE_MODEMIII:
board_type = "RocketModem III";
break;
default:
board_type = "RocketPort";
break;
}
if (fast_clock) {
sClockPrescale = 0x12; /* mod 2 (divide by 3) */
rp_baud_base[i] = 921600;
} else {
/*
* If support_low_speed is set, use the slow clock
* prescale, which supports 50 bps
*/
if (support_low_speed) {
/* mod 9 (divide by 10) prescale */
sClockPrescale = 0x19;
rp_baud_base[i] = 230400;
} else {
/* mod 4 (devide by 5) prescale */
sClockPrescale = 0x14;
rp_baud_base[i] = 460800;
}
}
for (aiop = 0; aiop < max_num_aiops; aiop++)
aiopio[aiop] = rcktpt_io_addr[i] + (aiop * 0x40);
ctlp = sCtlNumToCtlPtr(i);
num_aiops = sPCIInitController(ctlp, i, aiopio, max_num_aiops, ConfigIO, 0, FREQ_DIS, 0, altChanRingIndicator, UPCIRingInd);
for (aiop = 0; aiop < max_num_aiops; aiop++)
ctlp->AiopNumChan[aiop] = ports_per_aiop;
printk("Comtrol PCI controller #%d ID 0x%x found in bus:slot:fn %s at address %04lx, "
"%d AIOP(s) (%s)\n", i, dev->device, pci_name(dev),
rcktpt_io_addr[i], num_aiops, rocketModel[i].modelString);
printk(KERN_INFO "Installing %s, creating /dev/ttyR%d - %ld\n",
rocketModel[i].modelString,
rocketModel[i].startingPortNumber,
rocketModel[i].startingPortNumber +
rocketModel[i].numPorts - 1);
if (num_aiops <= 0) {
rcktpt_io_addr[i] = 0;
return (0);
}
is_PCI[i] = 1;
/* Reset the AIOPIC, init the serial ports */
for (aiop = 0; aiop < num_aiops; aiop++) {
sResetAiopByNum(ctlp, aiop);
num_chan = ports_per_aiop;
for (chan = 0; chan < num_chan; chan++)
init_r_port(i, aiop, chan, dev);
}
/* Rocket modems must be reset */
if ((rcktpt_type[i] == ROCKET_TYPE_MODEM) ||
(rcktpt_type[i] == ROCKET_TYPE_MODEMII) ||
(rcktpt_type[i] == ROCKET_TYPE_MODEMIII)) {
num_chan = ports_per_aiop;
for (chan = 0; chan < num_chan; chan++)
sPCIModemReset(ctlp, chan, 1);
mdelay(500);
for (chan = 0; chan < num_chan; chan++)
sPCIModemReset(ctlp, chan, 0);
mdelay(500);
rmSpeakerReset(ctlp, rocketModel[i].model);
}
return (1);
}
/*
* Probes for PCI cards, inits them if found
* Input: board_found = number of ISA boards already found, or the
* starting board number
* Returns: Number of PCI boards found
*/
static int __init init_PCI(int boards_found)
{
struct pci_dev *dev = NULL;
int count = 0;
/* Work through the PCI device list, pulling out ours */
[PATCH] tty: switch to ktermios This is the grungy swap all the occurrences in the right places patch that goes with the updates. At this point we have the same functionality as before (except that sgttyb() returns speeds not zero) and are ready to begin turning new stuff on providing nobody reports lots of bugs If you are a tty driver author converting an out of tree driver the only impact should be termios->ktermios name changes for the speed/property setting functions from your upper layers. If you are implementing your own TCGETS function before then your driver was broken already and its about to get a whole lot more painful for you so please fix it 8) Also fill in c_ispeed/ospeed on init for most devices, although the current code will do this for you anyway but I'd like eventually to lose that extra paranoia [akpm@osdl.org: bluetooth fix] [mp3@de.ibm.com: sclp fix] [mp3@de.ibm.com: warning fix for tty3270] [hugh@veritas.com: fix tty_ioctl powerpc build] [jdike@addtoit.com: uml: fix ->set_termios declaration] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Acked-by: Peter Oberparleiter <oberpar@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 10:38:45 +00:00
while ((dev = pci_get_device(PCI_VENDOR_ID_RP, PCI_ANY_ID, dev))) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (register_PCI(count + boards_found, dev))
count++;
}
return (count);
}
#endif /* CONFIG_PCI */
/*
* Probes for ISA cards
* Input: i = the board number to look for
* Returns: 1 if board found, 0 else
*/
static int __init init_ISA(int i)
{
int num_aiops, num_chan = 0, total_num_chan = 0;
int aiop, chan;
unsigned int aiopio[MAX_AIOPS_PER_BOARD];
CONTROLLER_t *ctlp;
char *type_string;
/* If io_addr is zero, no board configured */
if (rcktpt_io_addr[i] == 0)
return (0);
/* Reserve the IO region */
if (!request_region(rcktpt_io_addr[i], 64, "Comtrol RocketPort")) {
printk(KERN_INFO "Unable to reserve IO region for configured ISA RocketPort at address 0x%lx, board not installed...\n", rcktpt_io_addr[i]);
rcktpt_io_addr[i] = 0;
return (0);
}
ctlp = sCtlNumToCtlPtr(i);
ctlp->boardType = rcktpt_type[i];
switch (rcktpt_type[i]) {
case ROCKET_TYPE_PC104:
type_string = "(PC104)";
break;
case ROCKET_TYPE_MODEM:
type_string = "(RocketModem)";
break;
case ROCKET_TYPE_MODEMII:
type_string = "(RocketModem II)";
break;
default:
type_string = "";
break;
}
/*
* If support_low_speed is set, use the slow clock prescale,
* which supports 50 bps
*/
if (support_low_speed) {
sClockPrescale = 0x19; /* mod 9 (divide by 10) prescale */
rp_baud_base[i] = 230400;
} else {
sClockPrescale = 0x14; /* mod 4 (devide by 5) prescale */
rp_baud_base[i] = 460800;
}
for (aiop = 0; aiop < MAX_AIOPS_PER_BOARD; aiop++)
aiopio[aiop] = rcktpt_io_addr[i] + (aiop * 0x400);
num_aiops = sInitController(ctlp, i, controller + (i * 0x400), aiopio, MAX_AIOPS_PER_BOARD, 0, FREQ_DIS, 0);
if (ctlp->boardType == ROCKET_TYPE_PC104) {
sEnAiop(ctlp, 2); /* only one AIOPIC, but these */
sEnAiop(ctlp, 3); /* CSels used for other stuff */
}
/* If something went wrong initing the AIOP's release the ISA IO memory */
if (num_aiops <= 0) {
release_region(rcktpt_io_addr[i], 64);
rcktpt_io_addr[i] = 0;
return (0);
}
rocketModel[i].startingPortNumber = nextLineNumber;
for (aiop = 0; aiop < num_aiops; aiop++) {
sResetAiopByNum(ctlp, aiop);
sEnAiop(ctlp, aiop);
num_chan = sGetAiopNumChan(ctlp, aiop);
total_num_chan += num_chan;
for (chan = 0; chan < num_chan; chan++)
init_r_port(i, aiop, chan, NULL);
}
is_PCI[i] = 0;
if ((rcktpt_type[i] == ROCKET_TYPE_MODEM) || (rcktpt_type[i] == ROCKET_TYPE_MODEMII)) {
num_chan = sGetAiopNumChan(ctlp, 0);
total_num_chan = num_chan;
for (chan = 0; chan < num_chan; chan++)
sModemReset(ctlp, chan, 1);
mdelay(500);
for (chan = 0; chan < num_chan; chan++)
sModemReset(ctlp, chan, 0);
mdelay(500);
strcpy(rocketModel[i].modelString, "RocketModem ISA");
} else {
strcpy(rocketModel[i].modelString, "RocketPort ISA");
}
rocketModel[i].numPorts = total_num_chan;
rocketModel[i].model = MODEL_ISA;
printk(KERN_INFO "RocketPort ISA card #%d found at 0x%lx - %d AIOPs %s\n",
i, rcktpt_io_addr[i], num_aiops, type_string);
printk(KERN_INFO "Installing %s, creating /dev/ttyR%d - %ld\n",
rocketModel[i].modelString,
rocketModel[i].startingPortNumber,
rocketModel[i].startingPortNumber +
rocketModel[i].numPorts - 1);
return (1);
}
[PATCH] const struct tty_operations As part of an SMP cleanliness pass over UML, I consted a bunch of structures in order to not have to document their locking. One of these structures was a struct tty_operations. In order to const it in UML without introducing compiler complaints, the declaration of tty_set_operations needs to be changed, and then all of its callers need to be fixed. This patch declares all struct tty_operations in the tree as const. In all cases, they are static and used only as input to tty_set_operations. As an extra check, I ran an i386 allyesconfig build which produced no extra warnings. 53 drivers are affected. I checked the history of a bunch of them, and in most cases, there have been only a handful of maintenance changes in the last six months. serial_core.c was the busiest one that I looked at. Signed-off-by: Jeff Dike <jdike@addtoit.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02 09:17:18 +00:00
static const struct tty_operations rocket_ops = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
.open = rp_open,
.close = rp_close,
.write = rp_write,
.put_char = rp_put_char,
.write_room = rp_write_room,
.chars_in_buffer = rp_chars_in_buffer,
.flush_buffer = rp_flush_buffer,
.ioctl = rp_ioctl,
.throttle = rp_throttle,
.unthrottle = rp_unthrottle,
.set_termios = rp_set_termios,
.stop = rp_stop,
.start = rp_start,
.hangup = rp_hangup,
.break_ctl = rp_break,
.send_xchar = rp_send_xchar,
.wait_until_sent = rp_wait_until_sent,
.tiocmget = rp_tiocmget,
.tiocmset = rp_tiocmset,
};
/*
* The module "startup" routine; it's run when the module is loaded.
*/
[PATCH] rocketport: make it work when statically linked into kernel The driver had incorrectly wrapped module_init(rp_init) in #ifdef MODULE, so it worked only when compiled as a module. Tested by Wolfgang Denk with this device: 00:0e.0 Communication controller: Comtrol Corporation RocketPort 8 port w/RJ11 connectors (rev 04) Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at 7000 [size=64] Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 23:03:14 +00:00
static int __init rp_init(void)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Char: rocket, remove potential leak in module_init if (controller && !request_region) then we leaked a tty driver struct, fix it by adding function deinit tail with goto-ing into it (and from other fail paths too) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
int ret = -ENOMEM, pci_boards_found, isa_boards_found, i;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
printk(KERN_INFO "RocketPort device driver module, version %s, %s\n",
ROCKET_VERSION, ROCKET_DATE);
rocket_driver = alloc_tty_driver(MAX_RP_PORTS);
if (!rocket_driver)
Char: rocket, remove potential leak in module_init if (controller && !request_region) then we leaked a tty driver struct, fix it by adding function deinit tail with goto-ing into it (and from other fail paths too) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
goto err;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/*
* If board 1 is non-zero, there is at least one ISA configured. If controller is
* zero, use the default controller IO address of board1 + 0x40.
*/
if (board1) {
if (controller == 0)
controller = board1 + 0x40;
} else {
controller = 0; /* Used as a flag, meaning no ISA boards */
}
/* If an ISA card is configured, reserve the 4 byte IO space for the Mudbac controller */
if (controller && (!request_region(controller, 4, "Comtrol RocketPort"))) {
Char: rocket, remove potential leak in module_init if (controller && !request_region) then we leaked a tty driver struct, fix it by adding function deinit tail with goto-ing into it (and from other fail paths too) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
printk(KERN_ERR "Unable to reserve IO region for first "
"configured ISA RocketPort controller 0x%lx. "
"Driver exiting\n", controller);
ret = -EBUSY;
goto err_tty;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
/* Store ISA variable retrieved from command line or .conf file. */
rcktpt_io_addr[0] = board1;
rcktpt_io_addr[1] = board2;
rcktpt_io_addr[2] = board3;
rcktpt_io_addr[3] = board4;
rcktpt_type[0] = modem1 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
rcktpt_type[0] = pc104_1[0] ? ROCKET_TYPE_PC104 : rcktpt_type[0];
rcktpt_type[1] = modem2 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
rcktpt_type[1] = pc104_2[0] ? ROCKET_TYPE_PC104 : rcktpt_type[1];
rcktpt_type[2] = modem3 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
rcktpt_type[2] = pc104_3[0] ? ROCKET_TYPE_PC104 : rcktpt_type[2];
rcktpt_type[3] = modem4 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
rcktpt_type[3] = pc104_4[0] ? ROCKET_TYPE_PC104 : rcktpt_type[3];
/*
* Set up the tty driver structure and then register this
* driver with the tty layer.
*/
rocket_driver->owner = THIS_MODULE;
[PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV I've always found this flag confusing. Now that devfs is no longer around, it has been renamed, and the documentation for when this flag should be used has been updated. Also fixes all drivers that use this flag. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21 04:15:16 +00:00
rocket_driver->flags = TTY_DRIVER_DYNAMIC_DEV;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
rocket_driver->name = "ttyR";
rocket_driver->driver_name = "Comtrol RocketPort";
rocket_driver->major = TTY_ROCKET_MAJOR;
rocket_driver->minor_start = 0;
rocket_driver->type = TTY_DRIVER_TYPE_SERIAL;
rocket_driver->subtype = SERIAL_TYPE_NORMAL;
rocket_driver->init_termios = tty_std_termios;
rocket_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
[PATCH] tty: switch to ktermios This is the grungy swap all the occurrences in the right places patch that goes with the updates. At this point we have the same functionality as before (except that sgttyb() returns speeds not zero) and are ready to begin turning new stuff on providing nobody reports lots of bugs If you are a tty driver author converting an out of tree driver the only impact should be termios->ktermios name changes for the speed/property setting functions from your upper layers. If you are implementing your own TCGETS function before then your driver was broken already and its about to get a whole lot more painful for you so please fix it 8) Also fill in c_ispeed/ospeed on init for most devices, although the current code will do this for you anyway but I'd like eventually to lose that extra paranoia [akpm@osdl.org: bluetooth fix] [mp3@de.ibm.com: sclp fix] [mp3@de.ibm.com: warning fix for tty3270] [hugh@veritas.com: fix tty_ioctl powerpc build] [jdike@addtoit.com: uml: fix ->set_termios declaration] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Acked-by: Peter Oberparleiter <oberpar@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 10:38:45 +00:00
rocket_driver->init_termios.c_ispeed = 9600;
rocket_driver->init_termios.c_ospeed = 9600;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#ifdef ROCKET_SOFT_FLOW
Char: rocket, fix dynamic_dev tty - register_device unconditionally (non-pci dependent) to have also isa devices in /dev - unregister devices on module removal - don't set TTY_DRIVER_DYNAMIC_DEV twice (removed the one dependent on some macro) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Ferenc Wagner <wferi@niif.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:26 +00:00
rocket_driver->flags |= TTY_DRIVER_REAL_RAW;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#endif
tty_set_operations(rocket_driver, &rocket_ops);
Char: rocket, remove potential leak in module_init if (controller && !request_region) then we leaked a tty driver struct, fix it by adding function deinit tail with goto-ing into it (and from other fail paths too) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
ret = tty_register_driver(rocket_driver);
if (ret < 0) {
printk(KERN_ERR "Couldn't install tty RocketPort driver\n");
goto err_tty;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
#ifdef ROCKET_DEBUG_OPEN
printk(KERN_INFO "RocketPort driver is major %d\n", rocket_driver.major);
#endif
/*
* OK, let's probe each of the controllers looking for boards. Any boards found
* will be initialized here.
*/
isa_boards_found = 0;
pci_boards_found = 0;
for (i = 0; i < NUM_BOARDS; i++) {
if (init_ISA(i))
isa_boards_found++;
}
#ifdef CONFIG_PCI
if (isa_boards_found < NUM_BOARDS)
pci_boards_found = init_PCI(isa_boards_found);
#endif
max_board = pci_boards_found + isa_boards_found;
if (max_board == 0) {
Char: rocket, remove potential leak in module_init if (controller && !request_region) then we leaked a tty driver struct, fix it by adding function deinit tail with goto-ing into it (and from other fail paths too) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
printk(KERN_ERR "No rocketport ports found; unloading driver\n");
ret = -ENXIO;
goto err_ttyu;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
return 0;
Char: rocket, remove potential leak in module_init if (controller && !request_region) then we leaked a tty driver struct, fix it by adding function deinit tail with goto-ing into it (and from other fail paths too) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:28 +00:00
err_ttyu:
tty_unregister_driver(rocket_driver);
err_tty:
put_tty_driver(rocket_driver);
err:
return ret;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
static void rp_cleanup_module(void)
{
int retval;
int i;
del_timer_sync(&rocket_timer);
retval = tty_unregister_driver(rocket_driver);
if (retval)
printk(KERN_INFO "Error %d while trying to unregister "
"rocketport driver\n", -retval);
[PATCH] kfree cleanup: drivers/char This is the drivers/char/ part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in drivers/char/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 09:01:29 +00:00
for (i = 0; i < MAX_RP_PORTS; i++)
Char: rocket, fix dynamic_dev tty - register_device unconditionally (non-pci dependent) to have also isa devices in /dev - unregister devices on module removal - don't set TTY_DRIVER_DYNAMIC_DEV twice (removed the one dependent on some macro) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Ferenc Wagner <wferi@niif.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 10:06:26 +00:00
if (rp_table[i]) {
tty_unregister_device(rocket_driver, i);
kfree(rp_table[i]);
}
put_tty_driver(rocket_driver);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
for (i = 0; i < NUM_BOARDS; i++) {
if (rcktpt_io_addr[i] <= 0 || is_PCI[i])
continue;
release_region(rcktpt_io_addr[i], 64);
}
if (controller)
release_region(controller, 4);
}
/***************************************************************************
Function: sInitController
Purpose: Initialization of controller global registers and controller
structure.
Call: sInitController(CtlP,CtlNum,MudbacIO,AiopIOList,AiopIOListSize,
IRQNum,Frequency,PeriodicOnly)
CONTROLLER_T *CtlP; Ptr to controller structure
int CtlNum; Controller number
ByteIO_t MudbacIO; Mudbac base I/O address.
ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
This list must be in the order the AIOPs will be found on the
controller. Once an AIOP in the list is not found, it is
assumed that there are no more AIOPs on the controller.
int AiopIOListSize; Number of addresses in AiopIOList
int IRQNum; Interrupt Request number. Can be any of the following:
0: Disable global interrupts
3: IRQ 3
4: IRQ 4
5: IRQ 5
9: IRQ 9
10: IRQ 10
11: IRQ 11
12: IRQ 12
15: IRQ 15
Byte_t Frequency: A flag identifying the frequency
of the periodic interrupt, can be any one of the following:
FREQ_DIS - periodic interrupt disabled
FREQ_137HZ - 137 Hertz
FREQ_69HZ - 69 Hertz
FREQ_34HZ - 34 Hertz
FREQ_17HZ - 17 Hertz
FREQ_9HZ - 9 Hertz
FREQ_4HZ - 4 Hertz
If IRQNum is set to 0 the Frequency parameter is
overidden, it is forced to a value of FREQ_DIS.
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
int PeriodicOnly: 1 if all interrupts except the periodic
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
interrupt are to be blocked.
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
0 is both the periodic interrupt and
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
other channel interrupts are allowed.
If IRQNum is set to 0 the PeriodicOnly parameter is
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
overidden, it is forced to a value of 0.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller
initialization failed.
Comments:
If periodic interrupts are to be disabled but AIOP interrupts
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
If interrupts are to be completely disabled set IRQNum to 0.
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
invalid combination.
This function performs initialization of global interrupt modes,
but it does not actually enable global interrupts. To enable
and disable global interrupts use functions sEnGlobalInt() and
sDisGlobalInt(). Enabling of global interrupts is normally not
done until all other initializations are complete.
Even if interrupts are globally enabled, they must also be
individually enabled for each channel that is to generate
interrupts.
Warnings: No range checking on any of the parameters is done.
No context switches are allowed while executing this function.
After this function all AIOPs on the controller are disabled,
they can be enabled with sEnAiop().
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
ByteIO_t * AiopIOList, int AiopIOListSize,
int IRQNum, Byte_t Frequency, int PeriodicOnly)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
int i;
ByteIO_t io;
int done;
CtlP->AiopIntrBits = aiop_intr_bits;
CtlP->AltChanRingIndicator = 0;
CtlP->CtlNum = CtlNum;
CtlP->CtlID = CTLID_0001; /* controller release 1 */
CtlP->BusType = isISA;
CtlP->MBaseIO = MudbacIO;
CtlP->MReg1IO = MudbacIO + 1;
CtlP->MReg2IO = MudbacIO + 2;
CtlP->MReg3IO = MudbacIO + 3;
#if 1
CtlP->MReg2 = 0; /* interrupt disable */
CtlP->MReg3 = 0; /* no periodic interrupts */
#else
if (sIRQMap[IRQNum] == 0) { /* interrupts globally disabled */
CtlP->MReg2 = 0; /* interrupt disable */
CtlP->MReg3 = 0; /* no periodic interrupts */
} else {
CtlP->MReg2 = sIRQMap[IRQNum]; /* set IRQ number */
CtlP->MReg3 = Frequency; /* set frequency */
if (PeriodicOnly) { /* periodic interrupt only */
CtlP->MReg3 |= PERIODIC_ONLY;
}
}
#endif
sOutB(CtlP->MReg2IO, CtlP->MReg2);
sOutB(CtlP->MReg3IO, CtlP->MReg3);
sControllerEOI(CtlP); /* clear EOI if warm init */
/* Init AIOPs */
CtlP->NumAiop = 0;
for (i = done = 0; i < AiopIOListSize; i++) {
io = AiopIOList[i];
CtlP->AiopIO[i] = (WordIO_t) io;
CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
sOutB(CtlP->MReg2IO, CtlP->MReg2 | (i & 0x03)); /* AIOP index */
sOutB(MudbacIO, (Byte_t) (io >> 6)); /* set up AIOP I/O in MUDBAC */
if (done)
continue;
sEnAiop(CtlP, i); /* enable the AIOP */
CtlP->AiopID[i] = sReadAiopID(io); /* read AIOP ID */
if (CtlP->AiopID[i] == AIOPID_NULL) /* if AIOP does not exist */
done = 1; /* done looking for AIOPs */
else {
CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE); /* clock prescaler */
sOutB(io + _INDX_DATA, sClockPrescale);
CtlP->NumAiop++; /* bump count of AIOPs */
}
sDisAiop(CtlP, i); /* disable AIOP */
}
if (CtlP->NumAiop == 0)
return (-1);
else
return (CtlP->NumAiop);
}
/***************************************************************************
Function: sPCIInitController
Purpose: Initialization of controller global registers and controller
structure.
Call: sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize,
IRQNum,Frequency,PeriodicOnly)
CONTROLLER_T *CtlP; Ptr to controller structure
int CtlNum; Controller number
ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
This list must be in the order the AIOPs will be found on the
controller. Once an AIOP in the list is not found, it is
assumed that there are no more AIOPs on the controller.
int AiopIOListSize; Number of addresses in AiopIOList
int IRQNum; Interrupt Request number. Can be any of the following:
0: Disable global interrupts
3: IRQ 3
4: IRQ 4
5: IRQ 5
9: IRQ 9
10: IRQ 10
11: IRQ 11
12: IRQ 12
15: IRQ 15
Byte_t Frequency: A flag identifying the frequency
of the periodic interrupt, can be any one of the following:
FREQ_DIS - periodic interrupt disabled
FREQ_137HZ - 137 Hertz
FREQ_69HZ - 69 Hertz
FREQ_34HZ - 34 Hertz
FREQ_17HZ - 17 Hertz
FREQ_9HZ - 9 Hertz
FREQ_4HZ - 4 Hertz
If IRQNum is set to 0 the Frequency parameter is
overidden, it is forced to a value of FREQ_DIS.
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
int PeriodicOnly: 1 if all interrupts except the periodic
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
interrupt are to be blocked.
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
0 is both the periodic interrupt and
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
other channel interrupts are allowed.
If IRQNum is set to 0 the PeriodicOnly parameter is
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
overidden, it is forced to a value of 0.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller
initialization failed.
Comments:
If periodic interrupts are to be disabled but AIOP interrupts
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
If interrupts are to be completely disabled set IRQNum to 0.
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
invalid combination.
This function performs initialization of global interrupt modes,
but it does not actually enable global interrupts. To enable
and disable global interrupts use functions sEnGlobalInt() and
sDisGlobalInt(). Enabling of global interrupts is normally not
done until all other initializations are complete.
Even if interrupts are globally enabled, they must also be
individually enabled for each channel that is to generate
interrupts.
Warnings: No range checking on any of the parameters is done.
No context switches are allowed while executing this function.
After this function all AIOPs on the controller are disabled,
they can be enabled with sEnAiop().
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
ByteIO_t * AiopIOList, int AiopIOListSize,
WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
int PeriodicOnly, int altChanRingIndicator,
int UPCIRingInd)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
int i;
ByteIO_t io;
CtlP->AltChanRingIndicator = altChanRingIndicator;
CtlP->UPCIRingInd = UPCIRingInd;
CtlP->CtlNum = CtlNum;
CtlP->CtlID = CTLID_0001; /* controller release 1 */
CtlP->BusType = isPCI; /* controller release 1 */
if (ConfigIO) {
CtlP->isUPCI = 1;
CtlP->PCIIO = ConfigIO + _PCI_9030_INT_CTRL;
CtlP->PCIIO2 = ConfigIO + _PCI_9030_GPIO_CTRL;
CtlP->AiopIntrBits = upci_aiop_intr_bits;
} else {
CtlP->isUPCI = 0;
CtlP->PCIIO =
(WordIO_t) ((ByteIO_t) AiopIOList[0] + _PCI_INT_FUNC);
CtlP->AiopIntrBits = aiop_intr_bits;
}
sPCIControllerEOI(CtlP); /* clear EOI if warm init */
/* Init AIOPs */
CtlP->NumAiop = 0;
for (i = 0; i < AiopIOListSize; i++) {
io = AiopIOList[i];
CtlP->AiopIO[i] = (WordIO_t) io;
CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
CtlP->AiopID[i] = sReadAiopID(io); /* read AIOP ID */
if (CtlP->AiopID[i] == AIOPID_NULL) /* if AIOP does not exist */
break; /* done looking for AIOPs */
CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE); /* clock prescaler */
sOutB(io + _INDX_DATA, sClockPrescale);
CtlP->NumAiop++; /* bump count of AIOPs */
}
if (CtlP->NumAiop == 0)
return (-1);
else
return (CtlP->NumAiop);
}
/***************************************************************************
Function: sReadAiopID
Purpose: Read the AIOP idenfication number directly from an AIOP.
Call: sReadAiopID(io)
ByteIO_t io: AIOP base I/O address
Return: int: Flag AIOPID_XXXX if a valid AIOP is found, where X
is replace by an identifying number.
Flag AIOPID_NULL if no valid AIOP is found
Warnings: No context switches are allowed while executing this function.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static int sReadAiopID(ByteIO_t io)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Byte_t AiopID; /* ID byte from AIOP */
sOutB(io + _CMD_REG, RESET_ALL); /* reset AIOP */
sOutB(io + _CMD_REG, 0x0);
AiopID = sInW(io + _CHN_STAT0) & 0x07;
if (AiopID == 0x06)
return (1);
else /* AIOP does not exist */
return (-1);
}
/***************************************************************************
Function: sReadAiopNumChan
Purpose: Read the number of channels available in an AIOP directly from
an AIOP.
Call: sReadAiopNumChan(io)
WordIO_t io: AIOP base I/O address
Return: int: The number of channels available
Comments: The number of channels is determined by write/reads from identical
offsets within the SRAM address spaces for channels 0 and 4.
If the channel 4 space is mirrored to channel 0 it is a 4 channel
AIOP, otherwise it is an 8 channel.
Warnings: No context switches are allowed while executing this function.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static int sReadAiopNumChan(WordIO_t io)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Word_t x;
static Byte_t R[4] = { 0x00, 0x00, 0x34, 0x12 };
/* write to chan 0 SRAM */
sOutDW((DWordIO_t) io + _INDX_ADDR, *((DWord_t *) & R[0]));
sOutW(io + _INDX_ADDR, 0); /* read from SRAM, chan 0 */
x = sInW(io + _INDX_DATA);
sOutW(io + _INDX_ADDR, 0x4000); /* read from SRAM, chan 4 */
if (x != sInW(io + _INDX_DATA)) /* if different must be 8 chan */
return (8);
else
return (4);
}
/***************************************************************************
Function: sInitChan
Purpose: Initialization of a channel and channel structure
Call: sInitChan(CtlP,ChP,AiopNum,ChanNum)
CONTROLLER_T *CtlP; Ptr to controller structure
CHANNEL_T *ChP; Ptr to channel structure
int AiopNum; AIOP number within controller
int ChanNum; Channel number within AIOP
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
Return: int: 1 if initialization succeeded, 0 if it fails because channel
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
number exceeds number of channels available in AIOP.
Comments: This function must be called before a channel can be used.
Warnings: No range checking on any of the parameters is done.
No context switches are allowed while executing this function.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum,
int ChanNum)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
int i;
WordIO_t AiopIO;
WordIO_t ChIOOff;
Byte_t *ChR;
Word_t ChOff;
static Byte_t R[4];
int brd9600;
if (ChanNum >= CtlP->AiopNumChan[AiopNum])
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
return 0; /* exceeds num chans in AIOP */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* Channel, AIOP, and controller identifiers */
ChP->CtlP = CtlP;
ChP->ChanID = CtlP->AiopID[AiopNum];
ChP->AiopNum = AiopNum;
ChP->ChanNum = ChanNum;
/* Global direct addresses */
AiopIO = CtlP->AiopIO[AiopNum];
ChP->Cmd = (ByteIO_t) AiopIO + _CMD_REG;
ChP->IntChan = (ByteIO_t) AiopIO + _INT_CHAN;
ChP->IntMask = (ByteIO_t) AiopIO + _INT_MASK;
ChP->IndexAddr = (DWordIO_t) AiopIO + _INDX_ADDR;
ChP->IndexData = AiopIO + _INDX_DATA;
/* Channel direct addresses */
ChIOOff = AiopIO + ChP->ChanNum * 2;
ChP->TxRxData = ChIOOff + _TD0;
ChP->ChanStat = ChIOOff + _CHN_STAT0;
ChP->TxRxCount = ChIOOff + _FIFO_CNT0;
ChP->IntID = (ByteIO_t) AiopIO + ChP->ChanNum + _INT_ID0;
/* Initialize the channel from the RData array */
for (i = 0; i < RDATASIZE; i += 4) {
R[0] = RData[i];
R[1] = RData[i + 1] + 0x10 * ChanNum;
R[2] = RData[i + 2];
R[3] = RData[i + 3];
sOutDW(ChP->IndexAddr, *((DWord_t *) & R[0]));
}
ChR = ChP->R;
for (i = 0; i < RREGDATASIZE; i += 4) {
ChR[i] = RRegData[i];
ChR[i + 1] = RRegData[i + 1] + 0x10 * ChanNum;
ChR[i + 2] = RRegData[i + 2];
ChR[i + 3] = RRegData[i + 3];
}
/* Indexed registers */
ChOff = (Word_t) ChanNum *0x1000;
if (sClockPrescale == 0x14)
brd9600 = 47;
else
brd9600 = 23;
ChP->BaudDiv[0] = (Byte_t) (ChOff + _BAUD);
ChP->BaudDiv[1] = (Byte_t) ((ChOff + _BAUD) >> 8);
ChP->BaudDiv[2] = (Byte_t) brd9600;
ChP->BaudDiv[3] = (Byte_t) (brd9600 >> 8);
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->BaudDiv[0]);
ChP->TxControl[0] = (Byte_t) (ChOff + _TX_CTRL);
ChP->TxControl[1] = (Byte_t) ((ChOff + _TX_CTRL) >> 8);
ChP->TxControl[2] = 0;
ChP->TxControl[3] = 0;
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->TxControl[0]);
ChP->RxControl[0] = (Byte_t) (ChOff + _RX_CTRL);
ChP->RxControl[1] = (Byte_t) ((ChOff + _RX_CTRL) >> 8);
ChP->RxControl[2] = 0;
ChP->RxControl[3] = 0;
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->RxControl[0]);
ChP->TxEnables[0] = (Byte_t) (ChOff + _TX_ENBLS);
ChP->TxEnables[1] = (Byte_t) ((ChOff + _TX_ENBLS) >> 8);
ChP->TxEnables[2] = 0;
ChP->TxEnables[3] = 0;
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->TxEnables[0]);
ChP->TxCompare[0] = (Byte_t) (ChOff + _TXCMP1);
ChP->TxCompare[1] = (Byte_t) ((ChOff + _TXCMP1) >> 8);
ChP->TxCompare[2] = 0;
ChP->TxCompare[3] = 0;
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->TxCompare[0]);
ChP->TxReplace1[0] = (Byte_t) (ChOff + _TXREP1B1);
ChP->TxReplace1[1] = (Byte_t) ((ChOff + _TXREP1B1) >> 8);
ChP->TxReplace1[2] = 0;
ChP->TxReplace1[3] = 0;
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->TxReplace1[0]);
ChP->TxReplace2[0] = (Byte_t) (ChOff + _TXREP2);
ChP->TxReplace2[1] = (Byte_t) ((ChOff + _TXREP2) >> 8);
ChP->TxReplace2[2] = 0;
ChP->TxReplace2[3] = 0;
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->TxReplace2[0]);
ChP->TxFIFOPtrs = ChOff + _TXF_OUTP;
ChP->TxFIFO = ChOff + _TX_FIFO;
sOutB(ChP->Cmd, (Byte_t) ChanNum | RESTXFCNT); /* apply reset Tx FIFO count */
sOutB(ChP->Cmd, (Byte_t) ChanNum); /* remove reset Tx FIFO count */
sOutW((WordIO_t) ChP->IndexAddr, ChP->TxFIFOPtrs); /* clear Tx in/out ptrs */
sOutW(ChP->IndexData, 0);
ChP->RxFIFOPtrs = ChOff + _RXF_OUTP;
ChP->RxFIFO = ChOff + _RX_FIFO;
sOutB(ChP->Cmd, (Byte_t) ChanNum | RESRXFCNT); /* apply reset Rx FIFO count */
sOutB(ChP->Cmd, (Byte_t) ChanNum); /* remove reset Rx FIFO count */
sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs); /* clear Rx out ptr */
sOutW(ChP->IndexData, 0);
sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs + 2); /* clear Rx in ptr */
sOutW(ChP->IndexData, 0);
ChP->TxPrioCnt = ChOff + _TXP_CNT;
sOutW((WordIO_t) ChP->IndexAddr, ChP->TxPrioCnt);
sOutB(ChP->IndexData, 0);
ChP->TxPrioPtr = ChOff + _TXP_PNTR;
sOutW((WordIO_t) ChP->IndexAddr, ChP->TxPrioPtr);
sOutB(ChP->IndexData, 0);
ChP->TxPrioBuf = ChOff + _TXP_BUF;
sEnRxProcessor(ChP); /* start the Rx processor */
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
return 1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
/***************************************************************************
Function: sStopRxProcessor
Purpose: Stop the receive processor from processing a channel.
Call: sStopRxProcessor(ChP)
CHANNEL_T *ChP; Ptr to channel structure
Comments: The receive processor can be started again with sStartRxProcessor().
This function causes the receive processor to skip over the
stopped channel. It does not stop it from processing other channels.
Warnings: No context switches are allowed while executing this function.
Do not leave the receive processor stopped for more than one
character time.
After calling this function a delay of 4 uS is required to ensure
that the receive processor is no longer processing this channel.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sStopRxProcessor(CHANNEL_T * ChP)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Byte_t R[4];
R[0] = ChP->R[0];
R[1] = ChP->R[1];
R[2] = 0x0a;
R[3] = ChP->R[3];
sOutDW(ChP->IndexAddr, *(DWord_t *) & R[0]);
}
/***************************************************************************
Function: sFlushRxFIFO
Purpose: Flush the Rx FIFO
Call: sFlushRxFIFO(ChP)
CHANNEL_T *ChP; Ptr to channel structure
Return: void
Comments: To prevent data from being enqueued or dequeued in the Tx FIFO
while it is being flushed the receive processor is stopped
and the transmitter is disabled. After these operations a
4 uS delay is done before clearing the pointers to allow
the receive processor to stop. These items are handled inside
this function.
Warnings: No context switches are allowed while executing this function.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sFlushRxFIFO(CHANNEL_T * ChP)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
int i;
Byte_t Ch; /* channel number within AIOP */
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
int RxFIFOEnabled; /* 1 if Rx FIFO enabled */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (sGetRxCnt(ChP) == 0) /* Rx FIFO empty */
return; /* don't need to flush */
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
RxFIFOEnabled = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (ChP->R[0x32] == 0x08) { /* Rx FIFO is enabled */
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
RxFIFOEnabled = 1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
sDisRxFIFO(ChP); /* disable it */
for (i = 0; i < 2000 / 200; i++) /* delay 2 uS to allow proc to disable FIFO */
sInB(ChP->IntChan); /* depends on bus i/o timing */
}
sGetChanStatus(ChP); /* clear any pending Rx errors in chan stat */
Ch = (Byte_t) sGetChanNum(ChP);
sOutB(ChP->Cmd, Ch | RESRXFCNT); /* apply reset Rx FIFO count */
sOutB(ChP->Cmd, Ch); /* remove reset Rx FIFO count */
sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs); /* clear Rx out ptr */
sOutW(ChP->IndexData, 0);
sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs + 2); /* clear Rx in ptr */
sOutW(ChP->IndexData, 0);
if (RxFIFOEnabled)
sEnRxFIFO(ChP); /* enable Rx FIFO */
}
/***************************************************************************
Function: sFlushTxFIFO
Purpose: Flush the Tx FIFO
Call: sFlushTxFIFO(ChP)
CHANNEL_T *ChP; Ptr to channel structure
Return: void
Comments: To prevent data from being enqueued or dequeued in the Tx FIFO
while it is being flushed the receive processor is stopped
and the transmitter is disabled. After these operations a
4 uS delay is done before clearing the pointers to allow
the receive processor to stop. These items are handled inside
this function.
Warnings: No context switches are allowed while executing this function.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sFlushTxFIFO(CHANNEL_T * ChP)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
int i;
Byte_t Ch; /* channel number within AIOP */
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
int TxEnabled; /* 1 if transmitter enabled */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (sGetTxCnt(ChP) == 0) /* Tx FIFO empty */
return; /* don't need to flush */
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
TxEnabled = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (ChP->TxControl[3] & TX_ENABLE) {
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
TxEnabled = 1;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
sDisTransmit(ChP); /* disable transmitter */
}
sStopRxProcessor(ChP); /* stop Rx processor */
for (i = 0; i < 4000 / 200; i++) /* delay 4 uS to allow proc to stop */
sInB(ChP->IntChan); /* depends on bus i/o timing */
Ch = (Byte_t) sGetChanNum(ChP);
sOutB(ChP->Cmd, Ch | RESTXFCNT); /* apply reset Tx FIFO count */
sOutB(ChP->Cmd, Ch); /* remove reset Tx FIFO count */
sOutW((WordIO_t) ChP->IndexAddr, ChP->TxFIFOPtrs); /* clear Tx in/out ptrs */
sOutW(ChP->IndexData, 0);
if (TxEnabled)
sEnTransmit(ChP); /* enable transmitter */
sStartRxProcessor(ChP); /* restart Rx processor */
}
/***************************************************************************
Function: sWriteTxPrioByte
Purpose: Write a byte of priority transmit data to a channel
Call: sWriteTxPrioByte(ChP,Data)
CHANNEL_T *ChP; Ptr to channel structure
Byte_t Data; The transmit data byte
Return: int: 1 if the bytes is successfully written, otherwise 0.
Comments: The priority byte is transmitted before any data in the Tx FIFO.
Warnings: No context switches are allowed while executing this function.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Byte_t DWBuf[4]; /* buffer for double word writes */
Word_t *WordPtr; /* must be far because Win SS != DS */
register DWordIO_t IndexAddr;
if (sGetTxCnt(ChP) > 1) { /* write it to Tx priority buffer */
IndexAddr = ChP->IndexAddr;
sOutW((WordIO_t) IndexAddr, ChP->TxPrioCnt); /* get priority buffer status */
if (sInB((ByteIO_t) ChP->IndexData) & PRI_PEND) /* priority buffer busy */
return (0); /* nothing sent */
WordPtr = (Word_t *) (&DWBuf[0]);
*WordPtr = ChP->TxPrioBuf; /* data byte address */
DWBuf[2] = Data; /* data byte value */
sOutDW(IndexAddr, *((DWord_t *) (&DWBuf[0]))); /* write it out */
*WordPtr = ChP->TxPrioCnt; /* Tx priority count address */
DWBuf[2] = PRI_PEND + 1; /* indicate 1 byte pending */
DWBuf[3] = 0; /* priority buffer pointer */
sOutDW(IndexAddr, *((DWord_t *) (&DWBuf[0]))); /* write it out */
} else { /* write it to Tx FIFO */
sWriteTxByte(sGetTxRxDataIO(ChP), Data);
}
return (1); /* 1 byte sent */
}
/***************************************************************************
Function: sEnInterrupts
Purpose: Enable one or more interrupts for a channel
Call: sEnInterrupts(ChP,Flags)
CHANNEL_T *ChP; Ptr to channel structure
Word_t Flags: Interrupt enable flags, can be any combination
of the following flags:
TXINT_EN: Interrupt on Tx FIFO empty
RXINT_EN: Interrupt on Rx FIFO at trigger level (see
sSetRxTrigger())
SRCINT_EN: Interrupt on SRC (Special Rx Condition)
MCINT_EN: Interrupt on modem input change
CHANINT_EN: Allow channel interrupt signal to the AIOP's
Interrupt Channel Register.
Return: void
Comments: If an interrupt enable flag is set in Flags, that interrupt will be
enabled. If an interrupt enable flag is not set in Flags, that
interrupt will not be changed. Interrupts can be disabled with
function sDisInterrupts().
This function sets the appropriate bit for the channel in the AIOP's
Interrupt Mask Register if the CHANINT_EN flag is set. This allows
this channel's bit to be set in the AIOP's Interrupt Channel Register.
Interrupts must also be globally enabled before channel interrupts
will be passed on to the host. This is done with function
sEnGlobalInt().
In some cases it may be desirable to disable interrupts globally but
enable channel interrupts. This would allow the global interrupt
status register to be used to determine which AIOPs need service.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Byte_t Mask; /* Interrupt Mask Register */
ChP->RxControl[2] |=
((Byte_t) Flags & (RXINT_EN | SRCINT_EN | MCINT_EN));
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->RxControl[0]);
ChP->TxControl[2] |= ((Byte_t) Flags & TXINT_EN);
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->TxControl[0]);
if (Flags & CHANINT_EN) {
Mask = sInB(ChP->IntMask) | sBitMapSetTbl[ChP->ChanNum];
sOutB(ChP->IntMask, Mask);
}
}
/***************************************************************************
Function: sDisInterrupts
Purpose: Disable one or more interrupts for a channel
Call: sDisInterrupts(ChP,Flags)
CHANNEL_T *ChP; Ptr to channel structure
Word_t Flags: Interrupt flags, can be any combination
of the following flags:
TXINT_EN: Interrupt on Tx FIFO empty
RXINT_EN: Interrupt on Rx FIFO at trigger level (see
sSetRxTrigger())
SRCINT_EN: Interrupt on SRC (Special Rx Condition)
MCINT_EN: Interrupt on modem input change
CHANINT_EN: Disable channel interrupt signal to the
AIOP's Interrupt Channel Register.
Return: void
Comments: If an interrupt flag is set in Flags, that interrupt will be
disabled. If an interrupt flag is not set in Flags, that
interrupt will not be changed. Interrupts can be enabled with
function sEnInterrupts().
This function clears the appropriate bit for the channel in the AIOP's
Interrupt Mask Register if the CHANINT_EN flag is set. This blocks
this channel's bit from being set in the AIOP's Interrupt Channel
Register.
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Byte_t Mask; /* Interrupt Mask Register */
ChP->RxControl[2] &=
~((Byte_t) Flags & (RXINT_EN | SRCINT_EN | MCINT_EN));
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->RxControl[0]);
ChP->TxControl[2] &= ~((Byte_t) Flags & TXINT_EN);
sOutDW(ChP->IndexAddr, *(DWord_t *) & ChP->TxControl[0]);
if (Flags & CHANINT_EN) {
Mask = sInB(ChP->IntMask) & sBitMapClrTbl[ChP->ChanNum];
sOutB(ChP->IntMask, Mask);
}
}
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
sOutB(ChP->CtlP->AiopIO[2], (mode & 0x18) | ChP->ChanNum);
}
/*
* Not an official SSCI function, but how to reset RocketModems.
* ISA bus version
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sModemReset(CONTROLLER_T * CtlP, int chan, int on)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
ByteIO_t addr;
Byte_t val;
addr = CtlP->AiopIO[0] + 0x400;
val = sInB(CtlP->MReg3IO);
/* if AIOP[1] is not enabled, enable it */
if ((val & 2) == 0) {
val = sInB(CtlP->MReg2IO);
sOutB(CtlP->MReg2IO, (val & 0xfc) | (1 & 0x03));
sOutB(CtlP->MBaseIO, (unsigned char) (addr >> 6));
}
sEnAiop(CtlP, 1);
if (!on)
addr += 8;
sOutB(addr + chan, 0); /* apply or remove reset */
sDisAiop(CtlP, 1);
}
/*
* Not an official SSCI function, but how to reset RocketModems.
* PCI bus version
*/
[PATCH] drivers/char/rocket.c: cleanups This patch contains the following cleanups: - make needlessly global code static - remove the TRUE/FALSE macros Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 21:59:05 +00:00
static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
ByteIO_t addr;
addr = CtlP->AiopIO[0] + 0x40; /* 2nd AIOP */
if (!on)
addr += 8;
sOutB(addr + chan, 0); /* apply or remove reset */
}
/* Resets the speaker controller on RocketModem II and III devices */
static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model)
{
ByteIO_t addr;
/* RocketModem II speaker control is at the 8th port location of offset 0x40 */
if ((model == MODEL_RP4M) || (model == MODEL_RP6M)) {
addr = CtlP->AiopIO[0] + 0x4F;
sOutB(addr, 0);
}
/* RocketModem III speaker control is at the 1st port location of offset 0x80 */
if ((model == MODEL_UPCI_RM3_8PORT)
|| (model == MODEL_UPCI_RM3_4PORT)) {
addr = CtlP->AiopIO[0] + 0x88;
sOutB(addr, 0);
}
}
/* Returns the line number given the controller (board), aiop and channel number */
static unsigned char GetLineNumber(int ctrl, int aiop, int ch)
{
return lineNumbers[(ctrl << 5) | (aiop << 3) | ch];
}
/*
* Stores the line number associated with a given controller (board), aiop
* and channel number.
* Returns: The line number assigned
*/
static unsigned char SetLineNumber(int ctrl, int aiop, int ch)
{
lineNumbers[(ctrl << 5) | (aiop << 3) | ch] = nextLineNumber++;
return (nextLineNumber - 1);
}
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