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Staging: add aten2011 usb to serial converter driver.

Browse Source 
Many thanks to Russell Lang <gsview@ghostgum.com.au> for his
help in getting this working on newer kernel versions and
for pointing out this driver in the first place.

Cc: Russell Lang <gsview@ghostgum.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2009-01-27 23:28:27 -08:00
parent 793bccbd0e
commit e6d69d91d5
8 changed files with 4088 additions and 0 deletions
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2
drivers/staging/Kconfig
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@ -99,5 +99,7 @@ source "drivers/staging/pohmelfs/Kconfig"
source "drivers/staging/stlc45xx/Kconfig"
source "drivers/staging/uc2322/Kconfig"
endif # !STAGING_EXCLUDE_BUILD
endif # STAGING

1
drivers/staging/Makefile
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@ -32,3 +32,4 @@ obj-$(CONFIG_ANDROID) += android/
obj-$(CONFIG_DST) += dst/
obj-$(CONFIG_POHMELFS) += pohmelfs/
obj-$(CONFIG_STLC45XX) += stlc45xx/
obj-$(CONFIG_USB_SERIAL_ATEN2011) += uc2322/

10
drivers/staging/uc2322/Kconfig Normal file
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@ -0,0 +1,10 @@
config USB_SERIAL_ATEN2011
tristate "ATEN 2011 USB to serial device support"
depends on USB_SERIAL
default N
---help---
Say Y here if you want to use a ATEN 2011 dual port USB to serial
adapter.
To compile this driver as a module, choose M here: the module will be
called aten2011.

1
drivers/staging/uc2322/Makefile Normal file
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@ -0,0 +1 @@
obj-$(CONFIG_USB_SERIAL_ATEN2011) += aten2011.o

8
drivers/staging/uc2322/TODO Normal file
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@ -0,0 +1,8 @@
TODO:
- checkpatch.pl cleanups
- sparse cleanups
- remove dead and useless code (auditing the tty ioctls to
verify that they really are correct and needed.)
Please send any patches to Greg Kroah-Hartman <greg@kroah.com> and
Russell Lang <gsview@ghostgum.com.au>.

3625
drivers/staging/uc2322/aten2011.c Normal file
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383
drivers/staging/uc2322/aten2011.h Normal file
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@ -0,0 +1,383 @@
/*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if !defined(_ATEN_CIP_H_)
#define _ATEN_CIP_H_
#define MAX_RS232_PORTS 2 /* Max # of RS-232 ports per device */
#include <linux/version.h>
/*
* All typedef goes here
*/
/* typedefs that the insideout headers need */
#ifndef TRUE
#define TRUE (1)
#endif
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef LOW8
#define LOW8(val) ((unsigned char)(val & 0xff))
#endif
#ifndef HIGH8
#define HIGH8(val) ((unsigned char)((val & 0xff00) >> 8))
#endif
#ifndef NUM_ENTRIES
#define NUM_ENTRIES(x) (sizeof(x)/sizeof((x)[0]))
#endif
#define MAX_SERIALNUMBER_LEN 12
/* The following table is used to map the USBx port number to
* the device serial number (or physical USB path), */
#define MAX_ATENPORTS 2
#define MAX_NAME_LEN 64
#define RAID_REG1 0x30
#define RAID_REG2 0x31
#define ZLP_REG1 0x3A //Zero_Flag_Reg1 58
#define ZLP_REG2 0x3B //Zero_Flag_Reg2 59
#define ZLP_REG3 0x3C //Zero_Flag_Reg3 60
#define ZLP_REG4 0x3D //Zero_Flag_Reg4 61
#define ZLP_REG5 0x3E //Zero_Flag_Reg5 62
#define THRESHOLD_VAL_SP1_1 0x3F
#define THRESHOLD_VAL_SP1_2 0x40
#define THRESHOLD_VAL_SP2_1 0x41
#define THRESHOLD_VAL_SP2_2 0x42
#define THRESHOLD_VAL_SP3_1 0x43
#define THRESHOLD_VAL_SP3_2 0x44
#define THRESHOLD_VAL_SP4_1 0x45
#define THRESHOLD_VAL_SP4_2 0x46
/* For higher baud Rates use TIOCEXBAUD */
#define TIOCEXBAUD 0x5462
#define BAUD_1152 0 /* 115200bps * 1 */
#define BAUD_2304 1 /* 230400bps * 2 */
#define BAUD_4032 2 /* 403200bps * 3.5 */
#define BAUD_4608 3 /* 460800bps * 4 */
#define BAUD_8064 4 /* 806400bps * 7 */
#define BAUD_9216 5 /* 921600bps * 8 */
#define CHASE_TIMEOUT (5*HZ) /* 5 seconds */
#define OPEN_TIMEOUT (5*HZ) /* 5 seconds */
#define COMMAND_TIMEOUT (5*HZ) /* 5 seconds */
#ifndef SERIAL_MAGIC
#define SERIAL_MAGIC 0x6702
#endif
#define PORT_MAGIC 0x7301
/* vendor id and device id defines */
#define USB_VENDOR_ID_ATENINTL 0x0557
#define ATENINTL_DEVICE_ID_2011 0x2011
#define ATENINTL_DEVICE_ID_7820 0x7820
/* Product information read from the ATENINTL. Provided for later upgrade */
/* Interrupt Rotinue Defines */
#define SERIAL_IIR_RLS 0x06
#define SERIAL_IIR_RDA 0x04
#define SERIAL_IIR_CTI 0x0c
#define SERIAL_IIR_THR 0x02
#define SERIAL_IIR_MS 0x00
/*
* Emulation of the bit mask on the LINE STATUS REGISTER.
*/
#define SERIAL_LSR_DR 0x0001
#define SERIAL_LSR_OE 0x0002
#define SERIAL_LSR_PE 0x0004
#define SERIAL_LSR_FE 0x0008
#define SERIAL_LSR_BI 0x0010
#define SERIAL_LSR_THRE 0x0020
#define SERIAL_LSR_TEMT 0x0040
#define SERIAL_LSR_FIFOERR 0x0080
//MSR bit defines(place holders)
#define ATEN_MSR_CTS 0x01
#define ATEN_MSR_DSR 0x02
#define ATEN_MSR_RI 0x04
#define ATEN_MSR_CD 0x08
#define ATEN_MSR_DELTA_CTS 0x10
#define ATEN_MSR_DELTA_DSR 0x20
#define ATEN_MSR_DELTA_RI 0x40
#define ATEN_MSR_DELTA_CD 0x80
// Serial Port register Address
#define RECEIVE_BUFFER_REGISTER ((__u16)(0x00))
#define TRANSMIT_HOLDING_REGISTER ((__u16)(0x00))
#define INTERRUPT_ENABLE_REGISTER ((__u16)(0x01))
#define INTERRUPT_IDENT_REGISTER ((__u16)(0x02))
#define FIFO_CONTROL_REGISTER ((__u16)(0x02))
#define LINE_CONTROL_REGISTER ((__u16)(0x03))
#define MODEM_CONTROL_REGISTER ((__u16)(0x04))
#define LINE_STATUS_REGISTER ((__u16)(0x05))
#define MODEM_STATUS_REGISTER ((__u16)(0x06))
#define SCRATCH_PAD_REGISTER ((__u16)(0x07))
#define DIVISOR_LATCH_LSB ((__u16)(0x00))
#define DIVISOR_LATCH_MSB ((__u16)(0x01))
#define SP_REGISTER_BASE ((__u16)(0x08))
#define CONTROL_REGISTER_BASE ((__u16)(0x09))
#define DCR_REGISTER_BASE ((__u16)(0x16))
#define SP1_REGISTER ((__u16)(0x00))
#define CONTROL1_REGISTER ((__u16)(0x01))
#define CLK_MULTI_REGISTER ((__u16)(0x02))
#define CLK_START_VALUE_REGISTER ((__u16)(0x03))
#define DCR1_REGISTER ((__u16)(0x04))
#define GPIO_REGISTER ((__u16)(0x07))
#define CLOCK_SELECT_REG1 ((__u16)(0x13))
#define CLOCK_SELECT_REG2 ((__u16)(0x14))
#define SERIAL_LCR_DLAB ((__u16)(0x0080))
/*
* URB POOL related defines
*/
#define NUM_URBS 16 /* URB Count */
#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */
struct ATENINTL_product_info
{
__u16 ProductId; /* Product Identifier */
__u8 NumPorts; /* Number of ports on ATENINTL */
__u8 ProdInfoVer; /* What version of structure is this? */
__u32 IsServer :1; /* Set if Server */
__u32 IsRS232 :1; /* Set if RS-232 ports exist */
__u32 IsRS422 :1; /* Set if RS-422 ports exist */
__u32 IsRS485 :1; /* Set if RS-485 ports exist */
__u32 IsReserved :28; /* Reserved for later expansion */
__u8 CpuRev; /* CPU revision level (chg only if s/w visible) */
__u8 BoardRev; /* PCB revision level (chg only if s/w visible) */
__u8 ManufactureDescDate[3]; /* MM/DD/YY when descriptor template was compiled */
__u8 Unused1[1]; /* Available */
};
// different USB-serial Adapter's ID's table
static struct usb_device_id ATENINTL_port_id_table [] = {
{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_2011) },
{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_7820) },
{ } /* terminating entry */
};
static __devinitdata struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_2011) },
{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_7820) },
{ } /* terminating entry */
};
MODULE_DEVICE_TABLE (usb, id_table_combined);
/* This structure holds all of the local port information */
struct ATENINTL_port
{
int port_num; /*Actual port number in the device(1,2,etc)*/
__u8 bulk_out_endpoint; /* the bulk out endpoint handle */
unsigned char *bulk_out_buffer; /* buffer used for the bulk out endpoint */
struct urb *write_urb; /* write URB for this port */
__u8 bulk_in_endpoint; /* the bulk in endpoint handle */
unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */
struct urb *read_urb; /* read URB for this port */
__s16 rxBytesAvail;/*the number of bytes that we need to read from this device */
__s16 rxBytesRemaining; /* the number of port bytes left to read */
char write_in_progress; /* TRUE while a write URB is outstanding */
__u8 shadowLCR; /* last LCR value received */
__u8 shadowMCR; /* last MCR value received */
__u8 shadowMSR; /* last MSR value received */
__u8 shadowLSR; /* last LSR value received */
__u8 shadowXonChar; /* last value set as XON char in ATENINTL */
__u8 shadowXoffChar; /* last value set as XOFF char in ATENINTL */
__u8 validDataMask;
__u32 baudRate;
char open;
char openPending;
char commandPending;
char closePending;
char chaseResponsePending;
wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */
wait_queue_head_t wait_open; /* for handling sleeping while waiting for open to finish */
wait_queue_head_t wait_command; /* for handling sleeping while waiting for command to finish */
wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */
int delta_msr_cond;
struct async_icount icount;
struct usb_serial_port *port; /* loop back to the owner of this object */
/*Offsets*/
__u16 AppNum;
__u8 SpRegOffset;
__u8 ControlRegOffset;
__u8 DcrRegOffset;
__u8 ClkSelectRegOffset;
//for processing control URBS in interrupt context
struct urb *control_urb;
// __le16 rx_creg;
char *ctrl_buf;
int MsrLsr;
struct urb *write_urb_pool[NUM_URBS];
/* we pass a pointer to this as the arguement sent to cypress_set_termios old_termios */
struct ktermios tmp_termios; /* stores the old termios settings */
spinlock_t lock; /* private lock */
};
/* This structure holds all of the individual serial device information */
struct ATENINTL_serial
{
char name[MAX_NAME_LEN+1]; /* string name of this device */
struct ATENINTL_product_info product_info; /* Product Info */
__u8 interrupt_in_endpoint; /* the interrupt endpoint handle */
unsigned char *interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */
struct urb * interrupt_read_urb; /* our interrupt urb */
__u8 bulk_in_endpoint; /* the bulk in endpoint handle */
unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */
struct urb *read_urb; /* our bulk read urb */
__u8 bulk_out_endpoint; /* the bulk out endpoint handle */
__s16 rxBytesAvail; /* the number of bytes that we need to read from this device */
__u8 rxPort; /* the port that we are currently receiving data for */
__u8 rxStatusCode; /* the receive status code */
__u8 rxStatusParam; /* the receive status paramater */
__s16 rxBytesRemaining; /* the number of port bytes left to read */
struct usb_serial *serial; /* loop back to the owner of this object */
int ATEN2011_spectrum_2or4ports; //this says the number of ports in the device
// Indicates about the no.of opened ports of an individual USB-serial adapater.
unsigned int NoOfOpenPorts;
// a flag for Status endpoint polling
unsigned char status_polling_started;
};
/* baud rate information */
struct ATEN2011_divisor_table_entry
{
__u32 BaudRate;
__u16 Divisor;
};
/* Define table of divisors for ATENINTL 2011 hardware *
* These assume a 3.6864MHz crystal, the standard /16, and *
* MCR.7 = 0. */
#ifdef NOTATEN2011
static struct ATEN2011_divisor_table_entry ATEN2011_divisor_table[] = {
{ 50, 2304},
{ 110, 1047}, /* 2094.545455 => 230450 => .0217 % over */
{ 134, 857}, /* 1713.011152 => 230398.5 => .00065% under */
{ 150, 768},
{ 300, 384},
{ 600, 192},
{ 1200, 96},
{ 1800, 64},
{ 2400, 48},
{ 4800, 24},
{ 7200, 16},
{ 9600, 12},
{ 19200, 6},
{ 38400, 3},
{ 57600, 2},
{ 115200, 1},
};
#endif
/* local function prototypes */
/* function prototypes for all URB callbacks */
static void ATEN2011_interrupt_callback(struct urb *urb);
static void ATEN2011_bulk_in_callback(struct urb *urb);
static void ATEN2011_bulk_out_data_callback(struct urb *urb);
static void ATEN2011_control_callback(struct urb *urb);
static int ATEN2011_get_reg(struct ATENINTL_port *ATEN,__u16 Wval, __u16 reg, __u16 * val);
int handle_newMsr(struct ATENINTL_port *port,__u8 newMsr);
int handle_newLsr(struct ATENINTL_port *port,__u8 newLsr);
/* function prototypes for the usbserial callbacks */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count);
static int ATEN2011_write_room(struct tty_struct *tty);
static int ATEN2011_chars_in_buffer(struct tty_struct *tty);
static void ATEN2011_throttle(struct tty_struct *tty);
static void ATEN2011_unthrottle(struct tty_struct *tty);
static void ATEN2011_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios);
static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file);
static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
static void ATEN2011_break(struct tty_struct *tty, int break_state);
#else
static int ATEN2011_open(struct usb_serial_port *port, struct file *filp);
static void ATEN2011_close(struct usb_serial_port *port, struct file *filp);
static int ATEN2011_write(struct usb_serial_port *port, const unsigned char *data, int count);
static int ATEN2011_write_room(struct usb_serial_port *port);
static int ATEN2011_chars_in_buffer(struct usb_serial_port *port);
static void ATEN2011_throttle(struct usb_serial_port *port);
static void ATEN2011_unthrottle(struct usb_serial_port *port);
static void ATEN2011_set_termios (struct usb_serial_port *port, struct ktermios *old_termios);
static int ATEN2011_tiocmset(struct usb_serial_port *port, struct file *file,
unsigned int set, unsigned int clear);
static int ATEN2011_tiocmget(struct usb_serial_port *port, struct file *file);
static int ATEN2011_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg);
static void ATEN2011_break(struct usb_serial_port *port, int break_state);
#endif
//static void ATEN2011_break_ctl(struct usb_serial_port *port, int break_state );
static int ATEN2011_startup(struct usb_serial *serial);
static void ATEN2011_shutdown(struct usb_serial *serial);
//static int ATEN2011_serial_probe(struct usb_serial *serial, const struct usb_device_id *id);
static int ATEN2011_calc_num_ports(struct usb_serial *serial);
/* function prototypes for all of our local functions */
static int ATEN2011_calc_baud_rate_divisor(int baudRate, int *divisor,__u16 *clk_sel_val);
static int ATEN2011_send_cmd_write_baud_rate(struct ATENINTL_port *ATEN2011_port, int baudRate);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
static void ATEN2011_change_port_settings(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios);
static void ATEN2011_block_until_chase_response(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port);
static void ATEN2011_block_until_tx_empty(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port);
#else
static void ATEN2011_change_port_settings(struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios);
static void ATEN2011_block_until_chase_response(struct ATENINTL_port *ATEN2011_port);
static void ATEN2011_block_until_tx_empty(struct ATENINTL_port *ATEN2011_port);
#endif
int __init ATENINTL2011_init(void);
void __exit ATENINTL2011_exit(void);
#endif

58
drivers/staging/uc2322/aten2011_16C50.h Normal file
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@ -0,0 +1,58 @@
/*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if !defined(_16C50_H)
#define _16C50_H
/*************************************
* Bit definitions for each register *
*************************************/
#define LCR_BITS_5 0x00 /* 5 bits/char */
#define LCR_BITS_6 0x01 /* 6 bits/char */
#define LCR_BITS_7 0x02 /* 7 bits/char */
#define LCR_BITS_8 0x03 /* 8 bits/char */
#define LCR_BITS_MASK 0x03 /* Mask for bits/char field */
#define LCR_STOP_1 0x00 /* 1 stop bit */
#define LCR_STOP_1_5 0x04 /* 1.5 stop bits (if 5 bits/char) */
#define LCR_STOP_2 0x04 /* 2 stop bits (if 6-8 bits/char) */
#define LCR_STOP_MASK 0x04 /* Mask for stop bits field */
#define LCR_PAR_NONE 0x00 /* No parity */
#define LCR_PAR_ODD 0x08 /* Odd parity */
#define LCR_PAR_EVEN 0x18 /* Even parity */
#define LCR_PAR_MARK 0x28 /* Force parity bit to 1 */
#define LCR_PAR_SPACE 0x38 /* Force parity bit to 0 */
#define LCR_PAR_MASK 0x38 /* Mask for parity field */
#define LCR_SET_BREAK 0x40 /* Set Break condition */
#define LCR_DL_ENABLE 0x80 /* Enable access to divisor latch */
#define MCR_DTR 0x01 /* Assert DTR */
#define MCR_RTS 0x02 /* Assert RTS */
#define MCR_OUT1 0x04 /* Loopback only: Sets state of RI */
#define MCR_MASTER_IE 0x08 /* Enable interrupt outputs */
#define MCR_LOOPBACK 0x10 /* Set internal (digital) loopback mode */
#define MCR_XON_ANY 0x20 /* Enable any char to exit XOFF mode */
#define ATEN2011_MSR_CTS 0x10 /* Current state of CTS */
#define ATEN2011_MSR_DSR 0x20 /* Current state of DSR */
#define ATEN2011_MSR_RI 0x40 /* Current state of RI */
#define ATEN2011_MSR_CD 0x80 /* Current state of CD */
#endif /* if !defined(_16C50_H) */