forked from Minki/linux
[PATCH] CRIS update: drivers
Updates to device drivers. * Use I/O and DMA allocators. * Use wait_event_interruptible instead of interrutiple_sleep_on. * Added spinlocks SMP. * Changed restore_flags to local_irq_restore etc. * Updated IDE driver include to fit 2.6.12. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mikael Starvik
Linus Torvalds
parent
059163cabc
commit
7e9204265b
@ -11,6 +11,9 @@
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* partition split defined below.
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*
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* $Log: axisflashmap.c,v $
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* Revision 1.11 2004/11/15 10:27:14 starvik
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* Corrected typo (Thanks to Milton Miller <miltonm@bga.com>).
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*
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* Revision 1.10 2004/08/16 12:37:22 starvik
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* Merge of Linux 2.6.8
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*
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@ -161,7 +164,7 @@
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#elif CONFIG_ETRAX_FLASH_BUSWIDTH==2
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#define flash_data __u16
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#elif CONFIG_ETRAX_FLASH_BUSWIDTH==4
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#define flash_data __u16
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#define flash_data __u32
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#endif
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/* From head.S */
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@ -7,6 +7,15 @@
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*! Functions exported: ds1302_readreg, ds1302_writereg, ds1302_init
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*!
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*! $Log: ds1302.c,v $
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*! Revision 1.18 2005/01/24 09:11:26 mikaelam
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*! Minor changes to get DS1302 RTC chip driver to work
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*!
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*! Revision 1.17 2005/01/05 06:11:22 starvik
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*! No need to do local_irq_disable after local_irq_save.
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*!
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*! Revision 1.16 2004/12/13 12:21:52 starvik
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*! Added I/O and DMA allocators from Linux 2.4
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*!
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*! Revision 1.14 2004/08/24 06:48:43 starvik
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*! Whitespace cleanup
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*!
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@ -124,9 +133,9 @@
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*!
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*! ---------------------------------------------------------------------------
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*!
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*! (C) Copyright 1999, 2000, 2001 Axis Communications AB, LUND, SWEDEN
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*! (C) Copyright 1999, 2000, 2001, 2002, 2003, 2004 Axis Communications AB, LUND, SWEDEN
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*!
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*! $Id: ds1302.c,v 1.14 2004/08/24 06:48:43 starvik Exp $
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*! $Id: ds1302.c,v 1.18 2005/01/24 09:11:26 mikaelam Exp $
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*!
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*!***************************************************************************/
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@ -145,6 +154,7 @@
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#include <asm/arch/svinto.h>
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#include <asm/io.h>
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#include <asm/rtc.h>
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#include <asm/arch/io_interface_mux.h>
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#define RTC_MAJOR_NR 121 /* local major, change later */
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@ -320,7 +330,6 @@ get_rtc_time(struct rtc_time *rtc_tm)
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unsigned long flags;
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local_irq_save(flags);
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local_irq_disable();
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rtc_tm->tm_sec = CMOS_READ(RTC_SECONDS);
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rtc_tm->tm_min = CMOS_READ(RTC_MINUTES);
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@ -358,7 +367,7 @@ static int
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rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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unsigned long flags;
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unsigned long flags;
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switch(cmd) {
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case RTC_RD_TIME: /* read the time/date from RTC */
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@ -382,7 +391,7 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
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return -EPERM;
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if (copy_from_user(&rtc_tm, (struct rtc_time*)arg, sizeof(struct rtc_time)))
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return -EFAULT;
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return -EFAULT;
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yrs = rtc_tm.tm_year + 1900;
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mon = rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
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@ -419,7 +428,6 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
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BIN_TO_BCD(yrs);
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local_irq_save(flags);
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local_irq_disable();
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CMOS_WRITE(yrs, RTC_YEAR);
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CMOS_WRITE(mon, RTC_MONTH);
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CMOS_WRITE(day, RTC_DAY_OF_MONTH);
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@ -438,7 +446,7 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
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case RTC_SET_CHARGE: /* set the RTC TRICKLE CHARGE register */
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{
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int tcs_val;
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int tcs_val;
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if (!capable(CAP_SYS_TIME))
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return -EPERM;
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@ -492,8 +500,8 @@ print_rtc_status(void)
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/* The various file operations we support. */
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static struct file_operations rtc_fops = {
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.owner = THIS_MODULE,
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.ioctl = rtc_ioctl,
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.owner = THIS_MODULE,
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.ioctl = rtc_ioctl,
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};
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/* Probe for the chip by writing something to its RAM and try reading it back. */
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@ -532,7 +540,7 @@ ds1302_probe(void)
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"PB",
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#endif
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CONFIG_ETRAX_DS1302_RSTBIT);
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print_rtc_status();
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print_rtc_status();
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retval = 1;
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} else {
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stop();
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@ -548,7 +556,9 @@ ds1302_probe(void)
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int __init
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ds1302_init(void)
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{
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#ifdef CONFIG_ETRAX_I2C
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i2c_init();
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#endif
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if (!ds1302_probe()) {
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#ifdef CONFIG_ETRAX_DS1302_RST_ON_GENERIC_PORT
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@ -558,25 +568,42 @@ ds1302_init(void)
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*
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* Make sure that R_GEN_CONFIG is setup correct.
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*/
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genconfig_shadow = ((genconfig_shadow &
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~IO_MASK(R_GEN_CONFIG, ata)) |
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(IO_STATE(R_GEN_CONFIG, ata, select)));
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*R_GEN_CONFIG = genconfig_shadow;
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/* Allocating the ATA interface will grab almost all
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* pins in I/O groups a, b, c and d. A consequence of
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* allocating the ATA interface is that the fixed
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* interfaces shared RAM, parallel port 0, parallel
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* port 1, parallel port W, SCSI-8 port 0, SCSI-8 port
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* 1, SCSI-W, serial port 2, serial port 3,
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* synchronous serial port 3 and USB port 2 and almost
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* all GPIO pins on port g cannot be used.
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*/
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if (cris_request_io_interface(if_ata, "ds1302/ATA")) {
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printk(KERN_WARNING "ds1302: Failed to get IO interface\n");
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return -1;
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}
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#elif CONFIG_ETRAX_DS1302_RSTBIT == 0
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/* Set the direction of this bit to out. */
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genconfig_shadow = ((genconfig_shadow &
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~IO_MASK(R_GEN_CONFIG, g0dir)) |
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(IO_STATE(R_GEN_CONFIG, g0dir, out)));
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*R_GEN_CONFIG = genconfig_shadow;
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if (cris_io_interface_allocate_pins(if_gpio_grp_a,
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'g',
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CONFIG_ETRAX_DS1302_RSTBIT,
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CONFIG_ETRAX_DS1302_RSTBIT)) {
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printk(KERN_WARNING "ds1302: Failed to get IO interface\n");
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return -1;
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}
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/* Set the direction of this bit to out. */
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genconfig_shadow = ((genconfig_shadow &
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~IO_MASK(R_GEN_CONFIG, g0dir)) |
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(IO_STATE(R_GEN_CONFIG, g0dir, out)));
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*R_GEN_CONFIG = genconfig_shadow;
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#endif
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if (!ds1302_probe()) {
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printk(KERN_WARNING "%s: RTC not found.\n", ds1302_name);
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return -1;
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return -1;
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}
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#else
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printk(KERN_WARNING "%s: RTC not found.\n", ds1302_name);
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return -1;
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return -1;
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#endif
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}
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/* Initialise trickle charger */
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@ -20,6 +20,12 @@
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*! in the spin-lock.
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*!
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*! $Log: eeprom.c,v $
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*! Revision 1.12 2005/06/19 17:06:46 starvik
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*! Merge of Linux 2.6.12.
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*!
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*! Revision 1.11 2005/01/26 07:14:46 starvik
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*! Applied diff from kernel janitors (Nish Aravamudan).
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*!
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*! Revision 1.10 2003/09/11 07:29:48 starvik
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*! Merge of Linux 2.6.0-test5
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*!
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@ -94,6 +100,7 @@
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/wait.h>
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#include <asm/uaccess.h>
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#include "i2c.h"
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@ -526,15 +533,10 @@ static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t
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return -EFAULT;
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}
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while(eeprom.busy)
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{
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interruptible_sleep_on(&eeprom.wait_q);
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wait_event_interruptible(eeprom.wait_q, !eeprom.busy);
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if (signal_pending(current))
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return -EINTR;
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/* bail out if we get interrupted */
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if (signal_pending(current))
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return -EINTR;
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}
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eeprom.busy++;
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page = (unsigned char) (p >> 8);
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@ -604,13 +606,10 @@ static ssize_t eeprom_write(struct file * file, const char * buf, size_t count,
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return -EFAULT;
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}
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while(eeprom.busy)
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{
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interruptible_sleep_on(&eeprom.wait_q);
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/* bail out if we get interrupted */
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if (signal_pending(current))
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return -EINTR;
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}
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wait_event_interruptible(eeprom.wait_q, !eeprom.busy);
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/* bail out if we get interrupted */
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if (signal_pending(current))
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return -EINTR;
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eeprom.busy++;
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for(i = 0; (i < EEPROM_RETRIES) && (restart > 0); i++)
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{
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@ -1,4 +1,4 @@
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/* $Id: gpio.c,v 1.12 2004/08/24 07:19:59 starvik Exp $
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/* $Id: gpio.c,v 1.17 2005/06/19 17:06:46 starvik Exp $
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*
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* Etrax general port I/O device
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*
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@ -9,6 +9,18 @@
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* Johan Adolfsson (read/set directions, write, port G)
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*
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* $Log: gpio.c,v $
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* Revision 1.17 2005/06/19 17:06:46 starvik
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* Merge of Linux 2.6.12.
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*
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* Revision 1.16 2005/03/07 13:02:29 starvik
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* Protect driver global states with spinlock
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*
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* Revision 1.15 2005/01/05 06:08:55 starvik
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* No need to do local_irq_disable after local_irq_save.
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*
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* Revision 1.14 2004/12/13 12:21:52 starvik
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* Added I/O and DMA allocators from Linux 2.4
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*
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* Revision 1.12 2004/08/24 07:19:59 starvik
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* Whitespace cleanup
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*
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@ -142,6 +154,7 @@
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/irq.h>
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#include <asm/arch/io_interface_mux.h>
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#define GPIO_MAJOR 120 /* experimental MAJOR number */
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@ -194,6 +207,8 @@ static struct gpio_private *alarmlist = 0;
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static int gpio_some_alarms = 0; /* Set if someone uses alarm */
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static unsigned long gpio_pa_irq_enabled_mask = 0;
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static DEFINE_SPINLOCK(gpio_lock); /* Protect directions etc */
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/* Port A and B use 8 bit access, but Port G is 32 bit */
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#define NUM_PORTS (GPIO_MINOR_B+1)
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@ -241,6 +256,9 @@ static volatile unsigned char *dir_shadow[NUM_PORTS] = {
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&port_pb_dir_shadow
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};
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/* All bits in port g that can change dir. */
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static const unsigned long int changeable_dir_g_mask = 0x01FFFF01;
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/* Port G is 32 bit, handle it special, some bits are both inputs
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and outputs at the same time, only some of the bits can change direction
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and some of them in groups of 8 bit. */
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@ -260,6 +278,7 @@ gpio_poll(struct file *file,
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unsigned int mask = 0;
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struct gpio_private *priv = (struct gpio_private *)file->private_data;
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unsigned long data;
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spin_lock(&gpio_lock);
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poll_wait(file, &priv->alarm_wq, wait);
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if (priv->minor == GPIO_MINOR_A) {
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unsigned long flags;
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@ -270,10 +289,10 @@ gpio_poll(struct file *file,
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*/
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tmp = ~data & priv->highalarm & 0xFF;
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tmp = (tmp << R_IRQ_MASK1_SET__pa0__BITNR);
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save_flags(flags); cli();
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local_irq_save(flags);
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gpio_pa_irq_enabled_mask |= tmp;
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*R_IRQ_MASK1_SET = tmp;
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restore_flags(flags);
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local_irq_restore(flags);
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} else if (priv->minor == GPIO_MINOR_B)
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data = *R_PORT_PB_DATA;
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@ -286,8 +305,11 @@ gpio_poll(struct file *file,
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(~data & priv->lowalarm)) {
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mask = POLLIN|POLLRDNORM;
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}
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spin_unlock(&gpio_lock);
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DP(printk("gpio_poll ready: mask 0x%08X\n", mask));
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return mask;
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}
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@ -296,6 +318,7 @@ int etrax_gpio_wake_up_check(void)
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struct gpio_private *priv = alarmlist;
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unsigned long data = 0;
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int ret = 0;
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spin_lock(&gpio_lock);
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while (priv) {
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if (USE_PORTS(priv)) {
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data = *priv->port;
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@ -310,6 +333,7 @@ int etrax_gpio_wake_up_check(void)
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}
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priv = priv->next;
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}
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spin_unlock(&gpio_lock);
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return ret;
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}
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@ -327,6 +351,7 @@ static irqreturn_t
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gpio_pa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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{
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unsigned long tmp;
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spin_lock(&gpio_lock);
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/* Find what PA interrupts are active */
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tmp = (*R_IRQ_READ1);
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@ -337,6 +362,8 @@ gpio_pa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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*R_IRQ_MASK1_CLR = tmp;
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gpio_pa_irq_enabled_mask &= ~tmp;
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spin_unlock(&gpio_lock);
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if (gpio_some_alarms) {
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return IRQ_RETVAL(etrax_gpio_wake_up_check());
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}
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@ -350,6 +377,9 @@ static ssize_t gpio_write(struct file * file, const char * buf, size_t count,
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struct gpio_private *priv = (struct gpio_private *)file->private_data;
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unsigned char data, clk_mask, data_mask, write_msb;
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unsigned long flags;
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spin_lock(&gpio_lock);
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ssize_t retval = count;
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if (priv->minor !=GPIO_MINOR_A && priv->minor != GPIO_MINOR_B) {
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return -EFAULT;
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@ -372,7 +402,7 @@ static ssize_t gpio_write(struct file * file, const char * buf, size_t count,
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data = *buf++;
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if (priv->write_msb) {
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for (i = 7; i >= 0;i--) {
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local_irq_save(flags); local_irq_disable();
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local_irq_save(flags);
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*priv->port = *priv->shadow &= ~clk_mask;
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if (data & 1<<i)
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*priv->port = *priv->shadow |= data_mask;
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@ -384,7 +414,7 @@ static ssize_t gpio_write(struct file * file, const char * buf, size_t count,
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}
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} else {
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for (i = 0; i <= 7;i++) {
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local_irq_save(flags); local_irq_disable();
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local_irq_save(flags);
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*priv->port = *priv->shadow &= ~clk_mask;
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if (data & 1<<i)
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*priv->port = *priv->shadow |= data_mask;
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@ -396,6 +426,7 @@ static ssize_t gpio_write(struct file * file, const char * buf, size_t count,
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}
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}
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}
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spin_unlock(&gpio_lock);
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return retval;
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}
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@ -452,9 +483,14 @@ gpio_open(struct inode *inode, struct file *filp)
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static int
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gpio_release(struct inode *inode, struct file *filp)
|
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{
|
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struct gpio_private *p = alarmlist;
|
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struct gpio_private *todel = (struct gpio_private *)filp->private_data;
|
||||
|
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struct gpio_private *p;
|
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struct gpio_private *todel;
|
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|
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spin_lock(&gpio_lock);
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|
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p = alarmlist;
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todel = (struct gpio_private *)filp->private_data;
|
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/* unlink from alarmlist and free the private structure */
|
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if (p == todel) {
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@ -476,7 +512,7 @@ gpio_release(struct inode *inode, struct file *filp)
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p = p->next;
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}
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gpio_some_alarms = 0;
|
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|
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spin_unlock(&gpio_lock);
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return 0;
|
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}
|
||||
|
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@ -491,14 +527,14 @@ unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
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*/
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unsigned long flags;
|
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if (USE_PORTS(priv)) {
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local_irq_save(flags); local_irq_disable();
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local_irq_save(flags);
|
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*priv->dir = *priv->dir_shadow &=
|
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~((unsigned char)arg & priv->changeable_dir);
|
||||
local_irq_restore(flags);
|
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return ~(*priv->dir_shadow) & 0xFF; /* Only 8 bits */
|
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} else if (priv->minor == GPIO_MINOR_G) {
|
||||
/* We must fiddle with R_GEN_CONFIG to change dir */
|
||||
save_flags(flags); cli();
|
||||
local_irq_save(flags);
|
||||
if (((arg & dir_g_in_bits) != arg) &&
|
||||
(arg & changeable_dir_g)) {
|
||||
arg &= changeable_dir_g;
|
||||
@ -533,7 +569,7 @@ unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
|
||||
/* Must be a >120 ns delay before writing this again */
|
||||
|
||||
}
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
return dir_g_in_bits;
|
||||
}
|
||||
return 0;
|
||||
@ -543,14 +579,14 @@ unsigned long inline setget_output(struct gpio_private *priv, unsigned long arg)
|
||||
{
|
||||
unsigned long flags;
|
||||
if (USE_PORTS(priv)) {
|
||||
local_irq_save(flags); local_irq_disable();
|
||||
local_irq_save(flags);
|
||||
*priv->dir = *priv->dir_shadow |=
|
||||
((unsigned char)arg & priv->changeable_dir);
|
||||
local_irq_restore(flags);
|
||||
return *priv->dir_shadow;
|
||||
} else if (priv->minor == GPIO_MINOR_G) {
|
||||
/* We must fiddle with R_GEN_CONFIG to change dir */
|
||||
save_flags(flags); cli();
|
||||
local_irq_save(flags);
|
||||
if (((arg & dir_g_out_bits) != arg) &&
|
||||
(arg & changeable_dir_g)) {
|
||||
/* Set bits in genconfig to set to output */
|
||||
@ -583,7 +619,7 @@ unsigned long inline setget_output(struct gpio_private *priv, unsigned long arg)
|
||||
*R_GEN_CONFIG = genconfig_shadow;
|
||||
/* Must be a >120 ns delay before writing this again */
|
||||
}
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
return dir_g_out_bits & 0x7FFFFFFF;
|
||||
}
|
||||
return 0;
|
||||
@ -598,22 +634,26 @@ gpio_ioctl(struct inode *inode, struct file *file,
|
||||
{
|
||||
unsigned long flags;
|
||||
unsigned long val;
|
||||
int ret = 0;
|
||||
|
||||
struct gpio_private *priv = (struct gpio_private *)file->private_data;
|
||||
if (_IOC_TYPE(cmd) != ETRAXGPIO_IOCTYPE) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
spin_lock(&gpio_lock);
|
||||
|
||||
switch (_IOC_NR(cmd)) {
|
||||
case IO_READBITS: /* Use IO_READ_INBITS and IO_READ_OUTBITS instead */
|
||||
// read the port
|
||||
if (USE_PORTS(priv)) {
|
||||
return *priv->port;
|
||||
ret = *priv->port;
|
||||
} else if (priv->minor == GPIO_MINOR_G) {
|
||||
return (*R_PORT_G_DATA) & 0x7FFFFFFF;
|
||||
ret = (*R_PORT_G_DATA) & 0x7FFFFFFF;
|
||||
}
|
||||
break;
|
||||
case IO_SETBITS:
|
||||
local_irq_save(flags); local_irq_disable();
|
||||
local_irq_save(flags);
|
||||
// set changeable bits with a 1 in arg
|
||||
if (USE_PORTS(priv)) {
|
||||
*priv->port = *priv->shadow |=
|
||||
@ -624,7 +664,7 @@ gpio_ioctl(struct inode *inode, struct file *file,
|
||||
local_irq_restore(flags);
|
||||
break;
|
||||
case IO_CLRBITS:
|
||||
local_irq_save(flags); local_irq_disable();
|
||||
local_irq_save(flags);
|
||||
// clear changeable bits with a 1 in arg
|
||||
if (USE_PORTS(priv)) {
|
||||
*priv->port = *priv->shadow &=
|
||||
@ -666,33 +706,34 @@ gpio_ioctl(struct inode *inode, struct file *file,
|
||||
case IO_READDIR: /* Use IO_SETGET_INPUT/OUTPUT instead! */
|
||||
/* Read direction 0=input 1=output */
|
||||
if (USE_PORTS(priv)) {
|
||||
return *priv->dir_shadow;
|
||||
ret = *priv->dir_shadow;
|
||||
} else if (priv->minor == GPIO_MINOR_G) {
|
||||
/* Note: Some bits are both in and out,
|
||||
* Those that are dual is set here as well.
|
||||
*/
|
||||
return (dir_g_shadow | dir_g_out_bits) & 0x7FFFFFFF;
|
||||
ret = (dir_g_shadow | dir_g_out_bits) & 0x7FFFFFFF;
|
||||
}
|
||||
break;
|
||||
case IO_SETINPUT: /* Use IO_SETGET_INPUT instead! */
|
||||
/* Set direction 0=unchanged 1=input,
|
||||
* return mask with 1=input
|
||||
*/
|
||||
return setget_input(priv, arg) & 0x7FFFFFFF;
|
||||
ret = setget_input(priv, arg) & 0x7FFFFFFF;
|
||||
break;
|
||||
case IO_SETOUTPUT: /* Use IO_SETGET_OUTPUT instead! */
|
||||
/* Set direction 0=unchanged 1=output,
|
||||
* return mask with 1=output
|
||||
*/
|
||||
return setget_output(priv, arg) & 0x7FFFFFFF;
|
||||
|
||||
ret = setget_output(priv, arg) & 0x7FFFFFFF;
|
||||
break;
|
||||
case IO_SHUTDOWN:
|
||||
SOFT_SHUTDOWN();
|
||||
break;
|
||||
case IO_GET_PWR_BT:
|
||||
#if defined (CONFIG_ETRAX_SOFT_SHUTDOWN)
|
||||
return (*R_PORT_G_DATA & ( 1 << CONFIG_ETRAX_POWERBUTTON_BIT));
|
||||
ret = (*R_PORT_G_DATA & ( 1 << CONFIG_ETRAX_POWERBUTTON_BIT));
|
||||
#else
|
||||
return 0;
|
||||
ret = 0;
|
||||
#endif
|
||||
break;
|
||||
case IO_CFG_WRITE_MODE:
|
||||
@ -709,7 +750,7 @@ gpio_ioctl(struct inode *inode, struct file *file,
|
||||
{
|
||||
priv->clk_mask = 0;
|
||||
priv->data_mask = 0;
|
||||
return -EPERM;
|
||||
ret = -EPERM;
|
||||
}
|
||||
break;
|
||||
case IO_READ_INBITS:
|
||||
@ -720,8 +761,7 @@ gpio_ioctl(struct inode *inode, struct file *file,
|
||||
val = *R_PORT_G_DATA;
|
||||
}
|
||||
if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
ret = -EFAULT;
|
||||
break;
|
||||
case IO_READ_OUTBITS:
|
||||
/* *arg is result of reading the output shadow */
|
||||
@ -731,36 +771,43 @@ gpio_ioctl(struct inode *inode, struct file *file,
|
||||
val = port_g_data_shadow;
|
||||
}
|
||||
if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
|
||||
return -EFAULT;
|
||||
ret = -EFAULT;
|
||||
break;
|
||||
case IO_SETGET_INPUT:
|
||||
/* bits set in *arg is set to input,
|
||||
* *arg updated with current input pins.
|
||||
*/
|
||||
if (copy_from_user(&val, (unsigned long*)arg, sizeof(val)))
|
||||
return -EFAULT;
|
||||
{
|
||||
ret = -EFAULT;
|
||||
break;
|
||||
}
|
||||
val = setget_input(priv, val);
|
||||
if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
|
||||
return -EFAULT;
|
||||
ret = -EFAULT;
|
||||
break;
|
||||
case IO_SETGET_OUTPUT:
|
||||
/* bits set in *arg is set to output,
|
||||
* *arg updated with current output pins.
|
||||
*/
|
||||
if (copy_from_user(&val, (unsigned long*)arg, sizeof(val)))
|
||||
return -EFAULT;
|
||||
{
|
||||
ret = -EFAULT;
|
||||
break;
|
||||
}
|
||||
val = setget_output(priv, val);
|
||||
if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
|
||||
return -EFAULT;
|
||||
ret = -EFAULT;
|
||||
break;
|
||||
default:
|
||||
if (priv->minor == GPIO_MINOR_LEDS)
|
||||
return gpio_leds_ioctl(cmd, arg);
|
||||
ret = gpio_leds_ioctl(cmd, arg);
|
||||
else
|
||||
return -EINVAL;
|
||||
ret = -EINVAL;
|
||||
} /* switch */
|
||||
|
||||
return 0;
|
||||
|
||||
spin_unlock(&gpio_lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
@ -802,60 +849,20 @@ struct file_operations gpio_fops = {
|
||||
};
|
||||
|
||||
|
||||
static void __init gpio_init_port_g(void)
|
||||
void ioif_watcher(const unsigned int gpio_in_available,
|
||||
const unsigned int gpio_out_available,
|
||||
const unsigned char pa_available,
|
||||
const unsigned char pb_available)
|
||||
{
|
||||
#define GROUPA (0x0000FF3F)
|
||||
#define GROUPB (1<<6 | 1<<7)
|
||||
#define GROUPC (1<<30 | 1<<31)
|
||||
#define GROUPD (0x3FFF0000)
|
||||
#define GROUPD_LOW (0x00FF0000)
|
||||
unsigned long used_in_bits = 0;
|
||||
unsigned long used_out_bits = 0;
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, scsi0, select)){
|
||||
used_in_bits |= GROUPA | GROUPB | 0 | 0;
|
||||
used_out_bits |= GROUPA | GROUPB | 0 | 0;
|
||||
}
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, ata, select)) {
|
||||
used_in_bits |= GROUPA | GROUPB | GROUPC | (GROUPD & ~(1<<25|1<<26));
|
||||
used_out_bits |= GROUPA | GROUPB | GROUPC | GROUPD;
|
||||
}
|
||||
unsigned long int flags;
|
||||
D(printk("gpio.c: ioif_watcher called\n"));
|
||||
D(printk("gpio.c: G in: 0x%08x G out: 0x%08x PA: 0x%02x PB: 0x%02x\n",
|
||||
gpio_in_available, gpio_out_available, pa_available, pb_available));
|
||||
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, par0, select)) {
|
||||
used_in_bits |= (GROUPA & ~(1<<0)) | 0 | 0 | 0;
|
||||
used_out_bits |= (GROUPA & ~(1<<0)) | 0 | 0 | 0;
|
||||
}
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, ser2, select)) {
|
||||
used_in_bits |= 0 | GROUPB | 0 | 0;
|
||||
used_out_bits |= 0 | GROUPB | 0 | 0;
|
||||
}
|
||||
/* mio same as shared RAM ? */
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, mio, select)) {
|
||||
used_in_bits |= (GROUPA & ~(1<<0)) | 0 |0 |GROUPD_LOW;
|
||||
used_out_bits |= (GROUPA & ~(1<<0|1<<1|1<<2)) | 0 |0 |GROUPD_LOW;
|
||||
}
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, scsi1, select)) {
|
||||
used_in_bits |= 0 | 0 | GROUPC | GROUPD;
|
||||
used_out_bits |= 0 | 0 | GROUPC | GROUPD;
|
||||
}
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, scsi0w, select)) {
|
||||
used_in_bits |= GROUPA | GROUPB | 0 | (GROUPD_LOW | 1<<24);
|
||||
used_out_bits |= GROUPA | GROUPB | 0 | (GROUPD_LOW | 1<<24 | 1<<25|1<<26);
|
||||
}
|
||||
spin_lock_irqsave(&gpio_lock, flags);
|
||||
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, par1, select)) {
|
||||
used_in_bits |= 0 | 0 | 0 | (GROUPD & ~(1<<24));
|
||||
used_out_bits |= 0 | 0 | 0 | (GROUPD & ~(1<<24));
|
||||
}
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, ser3, select)) {
|
||||
used_in_bits |= 0 | 0 | GROUPC | 0;
|
||||
used_out_bits |= 0 | 0 | GROUPC | 0;
|
||||
}
|
||||
/* mio same as shared RAM-W? */
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, mio_w, select)) {
|
||||
used_in_bits |= (GROUPA & ~(1<<0)) | 0 | 0 |GROUPD_LOW;
|
||||
used_out_bits |= (GROUPA & ~(1<<0|1<<1|1<<2)) | 0 | 0 |GROUPD_LOW;
|
||||
}
|
||||
/* TODO: USB p2, parw, sync ser3? */
|
||||
dir_g_in_bits = gpio_in_available;
|
||||
dir_g_out_bits = gpio_out_available;
|
||||
|
||||
/* Initialise the dir_g_shadow etc. depending on genconfig */
|
||||
/* 0=input 1=output */
|
||||
@ -868,10 +875,7 @@ static void __init gpio_init_port_g(void)
|
||||
if (genconfig_shadow & IO_STATE(R_GEN_CONFIG, g24dir, out))
|
||||
dir_g_shadow |= (1 << 24);
|
||||
|
||||
dir_g_in_bits = ~used_in_bits;
|
||||
dir_g_out_bits = ~used_out_bits;
|
||||
|
||||
changeable_dir_g = 0x01FFFF01; /* all that can change dir */
|
||||
changeable_dir_g = changeable_dir_g_mask;
|
||||
changeable_dir_g &= dir_g_out_bits;
|
||||
changeable_dir_g &= dir_g_in_bits;
|
||||
/* Correct the bits that can change direction */
|
||||
@ -880,6 +884,7 @@ static void __init gpio_init_port_g(void)
|
||||
dir_g_in_bits &= ~changeable_dir_g;
|
||||
dir_g_in_bits |= (~dir_g_shadow & changeable_dir_g);
|
||||
|
||||
spin_unlock_irqrestore(&gpio_lock, flags);
|
||||
|
||||
printk(KERN_INFO "GPIO port G: in_bits: 0x%08lX out_bits: 0x%08lX val: %08lX\n",
|
||||
dir_g_in_bits, dir_g_out_bits, (unsigned long)*R_PORT_G_DATA);
|
||||
@ -896,6 +901,7 @@ gpio_init(void)
|
||||
#if defined (CONFIG_ETRAX_CSP0_LEDS)
|
||||
int i;
|
||||
#endif
|
||||
printk("gpio init\n");
|
||||
|
||||
/* do the formalities */
|
||||
|
||||
@ -919,8 +925,13 @@ gpio_init(void)
|
||||
#endif
|
||||
|
||||
#endif
|
||||
gpio_init_port_g();
|
||||
printk(KERN_INFO "ETRAX 100LX GPIO driver v2.5, (c) 2001, 2002 Axis Communications AB\n");
|
||||
/* The I/O interface allocation watcher will be called when
|
||||
* registering it. */
|
||||
if (cris_io_interface_register_watcher(ioif_watcher)){
|
||||
printk(KERN_WARNING "gpio_init: Failed to install IO if allocator watcher\n");
|
||||
}
|
||||
|
||||
printk(KERN_INFO "ETRAX 100LX GPIO driver v2.5, (c) 2001, 2002, 2003, 2004 Axis Communications AB\n");
|
||||
/* We call etrax_gpio_wake_up_check() from timer interrupt and
|
||||
* from cpu_idle() in kernel/process.c
|
||||
* The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
|
||||
|
||||
@ -12,6 +12,15 @@
|
||||
*! don't use PB_I2C if DS1302 uses same bits,
|
||||
*! use PB.
|
||||
*! $Log: i2c.c,v $
|
||||
*! Revision 1.13 2005/03/07 13:13:07 starvik
|
||||
*! Added spinlocks to protect states etc
|
||||
*!
|
||||
*! Revision 1.12 2005/01/05 06:11:22 starvik
|
||||
*! No need to do local_irq_disable after local_irq_save.
|
||||
*!
|
||||
*! Revision 1.11 2004/12/13 12:21:52 starvik
|
||||
*! Added I/O and DMA allocators from Linux 2.4
|
||||
*!
|
||||
*! Revision 1.9 2004/08/24 06:49:14 starvik
|
||||
*! Whitespace cleanup
|
||||
*!
|
||||
@ -75,7 +84,7 @@
|
||||
*! (C) Copyright 1999-2002 Axis Communications AB, LUND, SWEDEN
|
||||
*!
|
||||
*!***************************************************************************/
|
||||
/* $Id: i2c.c,v 1.9 2004/08/24 06:49:14 starvik Exp $ */
|
||||
/* $Id: i2c.c,v 1.13 2005/03/07 13:13:07 starvik Exp $ */
|
||||
|
||||
/****************** INCLUDE FILES SECTION ***********************************/
|
||||
|
||||
@ -95,6 +104,7 @@
|
||||
#include <asm/arch/svinto.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/delay.h>
|
||||
#include <asm/arch/io_interface_mux.h>
|
||||
|
||||
#include "i2c.h"
|
||||
|
||||
@ -184,6 +194,7 @@ static const char i2c_name[] = "i2c";
|
||||
|
||||
#define i2c_delay(usecs) udelay(usecs)
|
||||
|
||||
static DEFINE_SPINLOCK(i2c_lock); /* Protect directions etc */
|
||||
|
||||
/****************** FUNCTION DEFINITION SECTION *************************/
|
||||
|
||||
@ -488,13 +499,14 @@ i2c_writereg(unsigned char theSlave, unsigned char theReg,
|
||||
int error, cntr = 3;
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock(&i2c_lock);
|
||||
|
||||
do {
|
||||
error = 0;
|
||||
/*
|
||||
* we don't like to be interrupted
|
||||
*/
|
||||
local_irq_save(flags);
|
||||
local_irq_disable();
|
||||
|
||||
i2c_start();
|
||||
/*
|
||||
@ -538,6 +550,8 @@ i2c_writereg(unsigned char theSlave, unsigned char theReg,
|
||||
|
||||
i2c_delay(CLOCK_LOW_TIME);
|
||||
|
||||
spin_unlock(&i2c_lock);
|
||||
|
||||
return -error;
|
||||
}
|
||||
|
||||
@ -555,13 +569,14 @@ i2c_readreg(unsigned char theSlave, unsigned char theReg)
|
||||
int error, cntr = 3;
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock(&i2c_lock);
|
||||
|
||||
do {
|
||||
error = 0;
|
||||
/*
|
||||
* we don't like to be interrupted
|
||||
*/
|
||||
local_irq_save(flags);
|
||||
local_irq_disable();
|
||||
/*
|
||||
* generate start condition
|
||||
*/
|
||||
@ -620,6 +635,8 @@ i2c_readreg(unsigned char theSlave, unsigned char theReg)
|
||||
|
||||
} while(error && cntr--);
|
||||
|
||||
spin_unlock(&i2c_lock);
|
||||
|
||||
return b;
|
||||
}
|
||||
|
||||
@ -686,15 +703,26 @@ static struct file_operations i2c_fops = {
|
||||
int __init
|
||||
i2c_init(void)
|
||||
{
|
||||
static int res = 0;
|
||||
static int first = 1;
|
||||
|
||||
if (!first) {
|
||||
return res;
|
||||
}
|
||||
|
||||
/* Setup and enable the Port B I2C interface */
|
||||
|
||||
#ifndef CONFIG_ETRAX_I2C_USES_PB_NOT_PB_I2C
|
||||
if ((res = cris_request_io_interface(if_i2c, "I2C"))) {
|
||||
printk(KERN_CRIT "i2c_init: Failed to get IO interface\n");
|
||||
return res;
|
||||
}
|
||||
|
||||
*R_PORT_PB_I2C = port_pb_i2c_shadow |=
|
||||
IO_STATE(R_PORT_PB_I2C, i2c_en, on) |
|
||||
IO_FIELD(R_PORT_PB_I2C, i2c_d, 1) |
|
||||
IO_FIELD(R_PORT_PB_I2C, i2c_clk, 1) |
|
||||
IO_STATE(R_PORT_PB_I2C, i2c_oe_, enable);
|
||||
#endif
|
||||
|
||||
port_pb_dir_shadow &= ~IO_MASK(R_PORT_PB_DIR, dir0);
|
||||
port_pb_dir_shadow &= ~IO_MASK(R_PORT_PB_DIR, dir1);
|
||||
@ -702,8 +730,26 @@ i2c_init(void)
|
||||
*R_PORT_PB_DIR = (port_pb_dir_shadow |=
|
||||
IO_STATE(R_PORT_PB_DIR, dir0, input) |
|
||||
IO_STATE(R_PORT_PB_DIR, dir1, output));
|
||||
#else
|
||||
if ((res = cris_io_interface_allocate_pins(if_i2c,
|
||||
'b',
|
||||
CONFIG_ETRAX_I2C_DATA_PORT,
|
||||
CONFIG_ETRAX_I2C_DATA_PORT))) {
|
||||
printk(KERN_WARNING "i2c_init: Failed to get IO pin for I2C data port\n");
|
||||
return res;
|
||||
} else if ((res = cris_io_interface_allocate_pins(if_i2c,
|
||||
'b',
|
||||
CONFIG_ETRAX_I2C_CLK_PORT,
|
||||
CONFIG_ETRAX_I2C_CLK_PORT))) {
|
||||
cris_io_interface_free_pins(if_i2c,
|
||||
'b',
|
||||
CONFIG_ETRAX_I2C_DATA_PORT,
|
||||
CONFIG_ETRAX_I2C_DATA_PORT);
|
||||
printk(KERN_WARNING "i2c_init: Failed to get IO pin for I2C clk port\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
return res;
|
||||
}
|
||||
|
||||
static int __init
|
||||
@ -711,14 +757,16 @@ i2c_register(void)
|
||||
{
|
||||
int res;
|
||||
|
||||
i2c_init();
|
||||
res = i2c_init();
|
||||
if (res < 0)
|
||||
return res;
|
||||
res = register_chrdev(I2C_MAJOR, i2c_name, &i2c_fops);
|
||||
if(res < 0) {
|
||||
printk(KERN_ERR "i2c: couldn't get a major number.\n");
|
||||
return res;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "I2C driver v2.2, (c) 1999-2001 Axis Communications AB\n");
|
||||
printk(KERN_INFO "I2C driver v2.2, (c) 1999-2004 Axis Communications AB\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -15,7 +15,7 @@
|
||||
*
|
||||
* Author: Tobias Anderberg <tobiasa@axis.com>.
|
||||
*
|
||||
* $Id: pcf8563.c,v 1.8 2004/08/24 06:42:51 starvik Exp $
|
||||
* $Id: pcf8563.c,v 1.11 2005/03/07 13:13:07 starvik Exp $
|
||||
*/
|
||||
|
||||
#include <linux/config.h>
|
||||
@ -40,7 +40,7 @@
|
||||
#define PCF8563_MAJOR 121 /* Local major number. */
|
||||
#define DEVICE_NAME "rtc" /* Name which is registered in /proc/devices. */
|
||||
#define PCF8563_NAME "PCF8563"
|
||||
#define DRIVER_VERSION "$Revision: 1.8 $"
|
||||
#define DRIVER_VERSION "$Revision: 1.11 $"
|
||||
|
||||
/* I2C bus slave registers. */
|
||||
#define RTC_I2C_READ 0xa3
|
||||
@ -49,6 +49,8 @@
|
||||
/* Two simple wrapper macros, saves a few keystrokes. */
|
||||
#define rtc_read(x) i2c_readreg(RTC_I2C_READ, x)
|
||||
#define rtc_write(x,y) i2c_writereg(RTC_I2C_WRITE, x, y)
|
||||
|
||||
static DEFINE_SPINLOCK(rtc_lock); /* Protect state etc */
|
||||
|
||||
static const unsigned char days_in_month[] =
|
||||
{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
|
||||
@ -125,9 +127,12 @@ get_rtc_time(struct rtc_time *tm)
|
||||
int __init
|
||||
pcf8563_init(void)
|
||||
{
|
||||
unsigned char ret;
|
||||
int ret;
|
||||
|
||||
i2c_init();
|
||||
if ((ret = i2c_init())) {
|
||||
printk(KERN_CRIT "pcf8563_init: failed to init i2c\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* First of all we need to reset the chip. This is done by
|
||||
@ -200,12 +205,15 @@ pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned
|
||||
{
|
||||
struct rtc_time tm;
|
||||
|
||||
spin_lock(&rtc_lock);
|
||||
get_rtc_time(&tm);
|
||||
|
||||
if (copy_to_user((struct rtc_time *) arg, &tm, sizeof(struct rtc_time))) {
|
||||
spin_unlock(&rtc_lock);
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
spin_unlock(&rtc_lock);
|
||||
return 0;
|
||||
}
|
||||
break;
|
||||
@ -250,6 +258,8 @@ pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned
|
||||
BIN_TO_BCD(tm.tm_min);
|
||||
BIN_TO_BCD(tm.tm_sec);
|
||||
tm.tm_mon |= century;
|
||||
|
||||
spin_lock(&rtc_lock);
|
||||
|
||||
rtc_write(RTC_YEAR, tm.tm_year);
|
||||
rtc_write(RTC_MONTH, tm.tm_mon);
|
||||
@ -258,6 +268,8 @@ pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned
|
||||
rtc_write(RTC_MINUTES, tm.tm_min);
|
||||
rtc_write(RTC_SECONDS, tm.tm_sec);
|
||||
|
||||
spin_unlock(&rtc_lock);
|
||||
|
||||
return 0;
|
||||
#endif /* !CONFIG_ETRAX_RTC_READONLY */
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
# $Id: Makefile,v 1.5 2004/06/02 08:24:38 starvik Exp $
|
||||
# $Id: Makefile,v 1.6 2004/12/13 12:21:51 starvik Exp $
|
||||
#
|
||||
# Makefile for the linux kernel.
|
||||
#
|
||||
@ -7,7 +7,8 @@ extra-y := head.o
|
||||
|
||||
|
||||
obj-y := entry.o traps.o shadows.o debugport.o irq.o \
|
||||
process.o setup.o signal.o traps.o time.o ptrace.o
|
||||
process.o setup.o signal.o traps.o time.o ptrace.o \
|
||||
dma.o io_interface_mux.o
|
||||
|
||||
obj-$(CONFIG_ETRAX_KGDB) += kgdb.o
|
||||
obj-$(CONFIG_ETRAX_FAST_TIMER) += fasttimer.o
|
||||
|
||||
@ -1,10 +1,20 @@
|
||||
/* $Id: fasttimer.c,v 1.6 2004/05/14 10:18:39 starvik Exp $
|
||||
/* $Id: fasttimer.c,v 1.9 2005/03/04 08:16:16 starvik Exp $
|
||||
* linux/arch/cris/kernel/fasttimer.c
|
||||
*
|
||||
* Fast timers for ETRAX100/ETRAX100LX
|
||||
* This may be useful in other OS than Linux so use 2 space indentation...
|
||||
*
|
||||
* $Log: fasttimer.c,v $
|
||||
* Revision 1.9 2005/03/04 08:16:16 starvik
|
||||
* Merge of Linux 2.6.11.
|
||||
*
|
||||
* Revision 1.8 2005/01/05 06:09:29 starvik
|
||||
* cli()/sti() will be obsolete in 2.6.11.
|
||||
*
|
||||
* Revision 1.7 2005/01/03 13:35:46 starvik
|
||||
* Removed obsolete stuff.
|
||||
* Mark fast timer IRQ as not shared.
|
||||
*
|
||||
* Revision 1.6 2004/05/14 10:18:39 starvik
|
||||
* Export fast_timer_list
|
||||
*
|
||||
@ -148,8 +158,7 @@ static int debug_log_cnt_wrapped = 0;
|
||||
#define DEBUG_LOG(string, value) \
|
||||
{ \
|
||||
unsigned long log_flags; \
|
||||
save_flags(log_flags); \
|
||||
cli(); \
|
||||
local_irq_save(log_flags); \
|
||||
debug_log_string[debug_log_cnt] = (string); \
|
||||
debug_log_value[debug_log_cnt] = (unsigned long)(value); \
|
||||
if (++debug_log_cnt >= DEBUG_LOG_MAX) \
|
||||
@ -157,7 +166,7 @@ static int debug_log_cnt_wrapped = 0;
|
||||
debug_log_cnt = debug_log_cnt % DEBUG_LOG_MAX; \
|
||||
debug_log_cnt_wrapped = 1; \
|
||||
} \
|
||||
restore_flags(log_flags); \
|
||||
local_irq_restore(log_flags); \
|
||||
}
|
||||
#else
|
||||
#define DEBUG_LOG(string, value)
|
||||
@ -320,8 +329,7 @@ void start_one_shot_timer(struct fast_timer *t,
|
||||
|
||||
D1(printk("sft %s %d us\n", name, delay_us));
|
||||
|
||||
save_flags(flags);
|
||||
cli();
|
||||
local_irq_save(flags);
|
||||
|
||||
do_gettimeofday_fast(&t->tv_set);
|
||||
tmp = fast_timer_list;
|
||||
@ -395,7 +403,7 @@ void start_one_shot_timer(struct fast_timer *t,
|
||||
|
||||
D2(printk("start_one_shot_timer: %d us done\n", delay_us));
|
||||
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
} /* start_one_shot_timer */
|
||||
|
||||
static inline int fast_timer_pending (const struct fast_timer * t)
|
||||
@ -425,11 +433,10 @@ int del_fast_timer(struct fast_timer * t)
|
||||
unsigned long flags;
|
||||
int ret;
|
||||
|
||||
save_flags(flags);
|
||||
cli();
|
||||
local_irq_save(flags);
|
||||
ret = detach_fast_timer(t);
|
||||
t->next = t->prev = NULL;
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
return ret;
|
||||
} /* del_fast_timer */
|
||||
|
||||
@ -444,8 +451,7 @@ timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
|
||||
struct fast_timer *t;
|
||||
unsigned long flags;
|
||||
|
||||
save_flags(flags);
|
||||
cli();
|
||||
local_irq_save(flags);
|
||||
|
||||
/* Clear timer1 irq */
|
||||
*R_IRQ_MASK0_CLR = IO_STATE(R_IRQ_MASK0_CLR, timer1, clr);
|
||||
@ -462,7 +468,7 @@ timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
|
||||
fast_timer_running = 0;
|
||||
fast_timer_ints++;
|
||||
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
|
||||
t = fast_timer_list;
|
||||
while (t)
|
||||
@ -482,8 +488,7 @@ timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
|
||||
fast_timers_expired++;
|
||||
|
||||
/* Remove this timer before call, since it may reuse the timer */
|
||||
save_flags(flags);
|
||||
cli();
|
||||
local_irq_save(flags);
|
||||
if (t->prev)
|
||||
{
|
||||
t->prev->next = t->next;
|
||||
@ -498,7 +503,7 @@ timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
|
||||
}
|
||||
t->prev = NULL;
|
||||
t->next = NULL;
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
|
||||
if (t->function != NULL)
|
||||
{
|
||||
@ -515,8 +520,7 @@ timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
|
||||
D1(printk(".\n"));
|
||||
}
|
||||
|
||||
save_flags(flags);
|
||||
cli();
|
||||
local_irq_save(flags);
|
||||
if ((t = fast_timer_list) != NULL)
|
||||
{
|
||||
/* Start next timer.. */
|
||||
@ -535,7 +539,7 @@ timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
|
||||
#endif
|
||||
start_timer1(us);
|
||||
}
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
break;
|
||||
}
|
||||
else
|
||||
@ -546,7 +550,7 @@ timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
|
||||
D1(printk("e! %d\n", us));
|
||||
}
|
||||
}
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
if (!t)
|
||||
@ -748,13 +752,12 @@ static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len
|
||||
#endif
|
||||
|
||||
used += sprintf(bigbuf + used, "Active timers:\n");
|
||||
save_flags(flags);
|
||||
cli();
|
||||
local_irq_save(flags);
|
||||
t = fast_timer_list;
|
||||
while (t != NULL && (used+100 < BIG_BUF_SIZE))
|
||||
{
|
||||
nextt = t->next;
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
|
||||
"d: %6li us data: 0x%08lX"
|
||||
/* " func: 0x%08lX" */
|
||||
@ -768,14 +771,14 @@ static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len
|
||||
t->data
|
||||
/* , t->function */
|
||||
);
|
||||
cli();
|
||||
local_irq_disable();
|
||||
if (t->next != nextt)
|
||||
{
|
||||
printk(KERN_WARNING "timer removed!\n");
|
||||
}
|
||||
t = nextt;
|
||||
}
|
||||
restore_flags(flags);
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
if (used - offset < len)
|
||||
@ -963,7 +966,7 @@ void fast_timer_init(void)
|
||||
if ((fasttimer_proc_entry = create_proc_entry( "fasttimer", 0, 0 )))
|
||||
fasttimer_proc_entry->read_proc = proc_fasttimer_read;
|
||||
#endif /* PROC_FS */
|
||||
if(request_irq(TIMER1_IRQ_NBR, timer1_handler, SA_SHIRQ,
|
||||
if(request_irq(TIMER1_IRQ_NBR, timer1_handler, 0,
|
||||
"fast timer int", NULL))
|
||||
{
|
||||
printk("err: timer1 irq\n");
|
||||
|
||||
99
include/asm-cris/arch-v10/ide.h
Normal file
99
include/asm-cris/arch-v10/ide.h
Normal file
@ -0,0 +1,99 @@
|
||||
/*
|
||||
* linux/include/asm-cris/ide.h
|
||||
*
|
||||
* Copyright (C) 2000, 2001, 2002 Axis Communications AB
|
||||
*
|
||||
* Authors: Bjorn Wesen
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file contains the ETRAX 100LX specific IDE code.
|
||||
*/
|
||||
|
||||
#ifndef __ASMCRIS_IDE_H
|
||||
#define __ASMCRIS_IDE_H
|
||||
|
||||
#ifdef __KERNEL__
|
||||
|
||||
#include <asm/arch/svinto.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm-generic/ide_iops.h>
|
||||
|
||||
|
||||
/* ETRAX 100 can support 4 IDE busses on the same pins (serialized) */
|
||||
|
||||
#define MAX_HWIFS 4
|
||||
|
||||
extern __inline__ int ide_default_irq(unsigned long base)
|
||||
{
|
||||
/* all IDE busses share the same IRQ, number 4.
|
||||
* this has the side-effect that ide-probe.c will cluster our 4 interfaces
|
||||
* together in a hwgroup, and will serialize accesses. this is good, because
|
||||
* we can't access more than one interface at the same time on ETRAX100.
|
||||
*/
|
||||
return 4;
|
||||
}
|
||||
|
||||
extern __inline__ unsigned long ide_default_io_base(int index)
|
||||
{
|
||||
/* we have no real I/O base address per interface, since all go through the
|
||||
* same register. but in a bitfield in that register, we have the i/f number.
|
||||
* so we can use the io_base to remember that bitfield.
|
||||
*/
|
||||
static const unsigned long io_bases[MAX_HWIFS] = {
|
||||
IO_FIELD(R_ATA_CTRL_DATA, sel, 0),
|
||||
IO_FIELD(R_ATA_CTRL_DATA, sel, 1),
|
||||
IO_FIELD(R_ATA_CTRL_DATA, sel, 2),
|
||||
IO_FIELD(R_ATA_CTRL_DATA, sel, 3)
|
||||
};
|
||||
return io_bases[index];
|
||||
}
|
||||
|
||||
/* this is called once for each interface, to setup the port addresses. data_port is the result
|
||||
* of the ide_default_io_base call above. ctrl_port will be 0, but that is don't care for us.
|
||||
*/
|
||||
|
||||
extern __inline__ void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port, unsigned long ctrl_port, int *irq)
|
||||
{
|
||||
int i;
|
||||
|
||||
/* fill in ports for ATA addresses 0 to 7 */
|
||||
|
||||
for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
|
||||
hw->io_ports[i] = data_port |
|
||||
IO_FIELD(R_ATA_CTRL_DATA, addr, i) |
|
||||
IO_STATE(R_ATA_CTRL_DATA, cs0, active);
|
||||
}
|
||||
|
||||
/* the IDE control register is at ATA address 6, with CS1 active instead of CS0 */
|
||||
|
||||
hw->io_ports[IDE_CONTROL_OFFSET] = data_port |
|
||||
IO_FIELD(R_ATA_CTRL_DATA, addr, 6) |
|
||||
IO_STATE(R_ATA_CTRL_DATA, cs1, active);
|
||||
|
||||
/* whats this for ? */
|
||||
|
||||
hw->io_ports[IDE_IRQ_OFFSET] = 0;
|
||||
}
|
||||
|
||||
extern __inline__ void ide_init_default_hwifs(void)
|
||||
{
|
||||
hw_regs_t hw;
|
||||
int index;
|
||||
|
||||
for(index = 0; index < MAX_HWIFS; index++) {
|
||||
ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
|
||||
hw.irq = ide_default_irq(ide_default_io_base(index));
|
||||
ide_register_hw(&hw, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
/* some configuration options we don't need */
|
||||
|
||||
#undef SUPPORT_VLB_SYNC
|
||||
#define SUPPORT_VLB_SYNC 0
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#endif /* __ASMCRIS_IDE_H */
|
||||
1
include/asm-cris/ide.h
Normal file
1
include/asm-cris/ide.h
Normal file
@ -0,0 +1 @@
|
||||
#include <asm/arch/ide.h>
|
||||
Loading…
Reference in New Issue
Block a user