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Merge master.kernel.org:/home/rmk/linux-2.6-arm

Browse source 
* master.kernel.org:/home/rmk/linux-2.6-arm: (30 commits)
  [ARM] Acorn: move the i2c bus driver into drivers/i2c
  [ARM] ARM SCSI: Don't try to dma_map_sg too many scatterlist entries
  [ARM] ARM FAS216: don't modify scsi_cmnd request_bufflen
  [ARM] rtc-pcf8583: Final fixes for this RTC on RiscPC
  [ARM] rtc-pcf8583: correct month and year offsets
  [ARM] rtc-pcf8583: don't use BCD_TO_BIN/BIN_TO_BCD
  [ARM] EBSA110: Work around build errors
  [ARM] 4241/1: Define mb() as compiler barrier on a uniprocessor system
  [ARM] 4239/1: S3C24XX: Update kconfig entries for PM
  [ARM] 4238/1: S3C24XX: docs: update suspend and resume
  [ARM] 4237/2: oprofile: Always allow backtraces on ARM
  [ARM] Yet more asm/apm-emulation.h stuff
  ARM: OMAP: Add missing get_irqnr_preamble and arch_ret_to_user for omap2
  ARM: OMAP: Use linux/delay.h not asm/delay.h
  ARM: OMAP: Remove obsolete alsa typedefs
  ARM: OMAP: omap1510->15xx conversions needed for sx1
  ARM: OMAP: Add missing includes to board-nokia770
  ARM: OMAP: Workqueue changes for board-h4.c
  ARM: OMAP: dmtimer.c omap1 register fix
  ARM: OMAP: board-nokia770: correct lcd name
  ...
This commit is contained in:
Linus Torvalds 2007-03-04 13:15:48 -08:00
commit 42270035c6
36 changed files with 280 additions and 802 deletions
Download patch file Download diff file Expand all files Collapse all files

1
drivers/acorn/char/Makefile
View file

@ -2,5 +2,4 @@
# Makefile for the acorn character device drivers.
#
obj-$(CONFIG_ARCH_ACORN) += i2c.o pcf8583.o
obj-$(CONFIG_L7200_KEYB) += defkeymap-l7200.o keyb_l7200.o

368
drivers/acorn/char/i2c.c
View file

@ -1,368 +0,0 @@
/*
* linux/drivers/acorn/char/i2c.c
*
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* ARM IOC/IOMD i2c driver.
*
* On Acorn machines, the following i2c devices are on the bus:
* - PCF8583 real time clock & static RAM
*/
#include <linux/capability.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/miscdevice.h>
#include <linux/rtc.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/fs.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/hardware/ioc.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include "pcf8583.h"
extern int (*set_rtc)(void);
static struct i2c_client *rtc_client;
static const unsigned char days_in_mon[] =
{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
#define CMOS_CHECKSUM (63)
/*
* Acorn machines store the year in the static RAM at
* location 128.
*/
#define CMOS_YEAR (64 + 128)
static inline int rtc_command(int cmd, void *data)
{
int ret = -EIO;
if (rtc_client)
ret = rtc_client->driver->command(rtc_client, cmd, data);
return ret;
}
/*
* Update the century + year bytes in the CMOS RAM, ensuring
* that the check byte is correctly adjusted for the change.
*/
static int rtc_update_year(unsigned int new_year)
{
unsigned char yr[2], chk;
struct mem cmos_year = { CMOS_YEAR, sizeof(yr), yr };
struct mem cmos_check = { CMOS_CHECKSUM, 1, &chk };
int ret;
ret = rtc_command(MEM_READ, &cmos_check);
if (ret)
goto out;
ret = rtc_command(MEM_READ, &cmos_year);
if (ret)
goto out;
chk -= yr[1] + yr[0];
yr[1] = new_year / 100;
yr[0] = new_year % 100;
chk += yr[1] + yr[0];
ret = rtc_command(MEM_WRITE, &cmos_year);
if (ret == 0)
ret = rtc_command(MEM_WRITE, &cmos_check);
out:
return ret;
}
/*
* Read the current RTC time and date, and update xtime.
*/
static void get_rtc_time(struct rtc_tm *rtctm, unsigned int *year)
{
unsigned char ctrl, yr[2];
struct mem rtcmem = { CMOS_YEAR, sizeof(yr), yr };
int real_year, year_offset;
/*
* Ensure that the RTC is running.
*/
rtc_command(RTC_GETCTRL, &ctrl);
if (ctrl & 0xc0) {
unsigned char new_ctrl = ctrl & ~0xc0;
printk(KERN_WARNING "RTC: resetting control %02x -> %02x\n",
ctrl, new_ctrl);
rtc_command(RTC_SETCTRL, &new_ctrl);
}
if (rtc_command(RTC_GETDATETIME, rtctm) ||
rtc_command(MEM_READ, &rtcmem))
return;
real_year = yr[0];
/*
* The RTC year holds the LSB two bits of the current
* year, which should reflect the LSB two bits of the
* CMOS copy of the year. Any difference indicates
* that we have to correct the CMOS version.
*/
year_offset = rtctm->year_off - (real_year & 3);
if (year_offset < 0)
/*
* RTC year wrapped. Adjust it appropriately.
*/
year_offset += 4;
*year = real_year + year_offset + yr[1] * 100;
}
static int set_rtc_time(struct rtc_tm *rtctm, unsigned int year)
{
unsigned char leap;
int ret;
leap = (!(year % 4) && (year % 100)) || !(year % 400);
if (rtctm->mon > 12 || rtctm->mon == 0 || rtctm->mday == 0)
return -EINVAL;
if (rtctm->mday > (days_in_mon[rtctm->mon] + (rtctm->mon == 2 && leap)))
return -EINVAL;
if (rtctm->hours >= 24 || rtctm->mins >= 60 || rtctm->secs >= 60)
return -EINVAL;
/*
* The RTC's own 2-bit year must reflect the least
* significant two bits of the CMOS year.
*/
rtctm->year_off = (year % 100) & 3;
ret = rtc_command(RTC_SETDATETIME, rtctm);
if (ret == 0)
ret = rtc_update_year(year);
return ret;
}
/*
* Set the RTC time only. Note that
* we do not touch the date.
*/
static int k_set_rtc_time(void)
{
struct rtc_tm new_rtctm, old_rtctm;
unsigned long nowtime = xtime.tv_sec;
if (rtc_command(RTC_GETDATETIME, &old_rtctm))
return 0;
new_rtctm.cs = xtime.tv_nsec / 10000000;
new_rtctm.secs = nowtime % 60; nowtime /= 60;
new_rtctm.mins = nowtime % 60; nowtime /= 60;
new_rtctm.hours = nowtime % 24;
/*
* avoid writing when we're going to change the day
* of the month. We will retry in the next minute.
* This basically means that if the RTC must not drift
* by more than 1 minute in 11 minutes.
*
* [ rtc: 1/1/2000 23:58:00, real 2/1/2000 00:01:00,
* rtc gets set to 1/1/2000 00:01:00 ]
*/
if ((old_rtctm.hours == 23 && old_rtctm.mins == 59) ||
(new_rtctm.hours == 23 && new_rtctm.mins == 59))
return 1;
return rtc_command(RTC_SETTIME, &new_rtctm);
}
static int rtc_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
unsigned int year;
struct rtc_time rtctm;
struct rtc_tm rtc_raw;
switch (cmd) {
case RTC_ALM_READ:
case RTC_ALM_SET:
break;
case RTC_RD_TIME:
memset(&rtctm, 0, sizeof(struct rtc_time));
get_rtc_time(&rtc_raw, &year);
rtctm.tm_sec = rtc_raw.secs;
rtctm.tm_min = rtc_raw.mins;
rtctm.tm_hour = rtc_raw.hours;
rtctm.tm_mday = rtc_raw.mday;
rtctm.tm_mon = rtc_raw.mon - 1; /* month starts at 0 */
rtctm.tm_year = year - 1900; /* starts at 1900 */
return copy_to_user((void *)arg, &rtctm, sizeof(rtctm))
? -EFAULT : 0;
case RTC_SET_TIME:
if (!capable(CAP_SYS_TIME))
return -EACCES;
if (copy_from_user(&rtctm, (void *)arg, sizeof(rtctm)))
return -EFAULT;
rtc_raw.secs = rtctm.tm_sec;
rtc_raw.mins = rtctm.tm_min;
rtc_raw.hours = rtctm.tm_hour;
rtc_raw.mday = rtctm.tm_mday;
rtc_raw.mon = rtctm.tm_mon + 1;
year = rtctm.tm_year + 1900;
return set_rtc_time(&rtc_raw, year);
break;
case RTC_EPOCH_READ:
return put_user(1900, (unsigned long *)arg);
}
return -EINVAL;
}
static const struct file_operations rtc_fops = {
.ioctl = rtc_ioctl,
};
static struct miscdevice rtc_dev = {
.minor = RTC_MINOR,
.name = "rtc",
.fops = &rtc_fops,
};
/* IOC / IOMD i2c driver */
#define FORCE_ONES 0xdc
#define SCL 0x02
#define SDA 0x01
/*
* We must preserve all non-i2c output bits in IOC_CONTROL.
* Note also that we need to preserve the value of SCL and
* SDA outputs as well (which may be different from the
* values read back from IOC_CONTROL).
*/
static u_int force_ones;
static void ioc_setscl(void *data, int state)
{
u_int ioc_control = ioc_readb(IOC_CONTROL) & ~(SCL | SDA);
u_int ones = force_ones;
if (state)
ones |= SCL;
else
ones &= ~SCL;
force_ones = ones;
ioc_writeb(ioc_control | ones, IOC_CONTROL);
}
static void ioc_setsda(void *data, int state)
{
u_int ioc_control = ioc_readb(IOC_CONTROL) & ~(SCL | SDA);
u_int ones = force_ones;
if (state)
ones |= SDA;
else
ones &= ~SDA;
force_ones = ones;
ioc_writeb(ioc_control | ones, IOC_CONTROL);
}
static int ioc_getscl(void *data)
{
return (ioc_readb(IOC_CONTROL) & SCL) != 0;
}
static int ioc_getsda(void *data)
{
return (ioc_readb(IOC_CONTROL) & SDA) != 0;
}
static struct i2c_algo_bit_data ioc_data = {
.setsda = ioc_setsda,
.setscl = ioc_setscl,
.getsda = ioc_getsda,
.getscl = ioc_getscl,
.udelay = 80,
.timeout = 100
};
static int ioc_client_reg(struct i2c_client *client)
{
if (client->driver->id == I2C_DRIVERID_PCF8583 &&
client->addr == 0x50) {
struct rtc_tm rtctm;
unsigned int year;
struct timespec tv;
rtc_client = client;
get_rtc_time(&rtctm, &year);
tv.tv_nsec = rtctm.cs * 10000000;
tv.tv_sec = mktime(year, rtctm.mon, rtctm.mday,
rtctm.hours, rtctm.mins, rtctm.secs);
do_settimeofday(&tv);
set_rtc = k_set_rtc_time;
}
return 0;
}
static int ioc_client_unreg(struct i2c_client *client)
{
if (client == rtc_client) {
set_rtc = NULL;
rtc_client = NULL;
}
return 0;
}
static struct i2c_adapter ioc_ops = {
.id = I2C_HW_B_IOC,
.algo_data = &ioc_data,
.client_register = ioc_client_reg,
.client_unregister = ioc_client_unreg,
};
static int __init i2c_ioc_init(void)
{
int ret;
force_ones = FORCE_ONES | SCL | SDA;
ret = i2c_bit_add_bus(&ioc_ops);
if (ret >= 0){
ret = misc_register(&rtc_dev);
if(ret < 0)
i2c_del_adapter(&ioc_ops);
}
return ret;
}
__initcall(i2c_ioc_init);

284
drivers/acorn/char/pcf8583.c
View file

@ -1,284 +0,0 @@
/*
* linux/drivers/acorn/char/pcf8583.c
*
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Driver for PCF8583 RTC & RAM chip
*/
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/mc146818rtc.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/bcd.h>
#include "pcf8583.h"
static struct i2c_driver pcf8583_driver;
static unsigned short ignore[] = { I2C_CLIENT_END };
static unsigned short normal_addr[] = { 0x50, I2C_CLIENT_END };
static unsigned short *forces[] = { NULL };
static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_addr,
.probe = ignore,
.ignore = ignore,
.forces = forces,
};
#define set_ctrl(x, v) i2c_set_clientdata(x, (void *)(unsigned int)(v))
#define get_ctrl(x) ((unsigned int)i2c_get_clientdata(x))
static int
pcf8583_attach(struct i2c_adapter *adap, int addr, int kind)
{
struct i2c_client *c;
unsigned char buf[1], ad[1] = { 0 };
struct i2c_msg msgs[2] = {
{
.addr = addr,
.flags = 0,
.len = 1,
.buf = ad,
}, {
.addr = addr,
.flags = I2C_M_RD,
.len = 1,
.buf = buf,
}
};
c = kmalloc(sizeof(*c), GFP_KERNEL);
if (!c)
return -ENOMEM;
memset(c, 0, sizeof(*c));
c->addr = addr;
c->adapter = adap;
c->driver = &pcf8583_driver;
if (i2c_transfer(c->adapter, msgs, 2) == 2)
set_ctrl(c, buf[0]);
return i2c_attach_client(c);
}
static int
pcf8583_probe(struct i2c_adapter *adap)
{
return i2c_probe(adap, &addr_data, pcf8583_attach);
}
static int
pcf8583_detach(struct i2c_client *client)
{
i2c_detach_client(client);
kfree(client);
return 0;
}
static int
pcf8583_get_datetime(struct i2c_client *client, struct rtc_tm *dt)
{
unsigned char buf[8], addr[1] = { 1 };
struct i2c_msg msgs[2] = {
{
.addr = client->addr,
.flags = 0,
.len = 1,
.buf = addr,
}, {
.addr = client->addr,
.flags = I2C_M_RD,
.len = 6,
.buf = buf,
}
};
int ret = -EIO;
memset(buf, 0, sizeof(buf));
ret = i2c_transfer(client->adapter, msgs, 2);
if (ret == 2) {
dt->year_off = buf[4] >> 6;
dt->wday = buf[5] >> 5;
buf[4] &= 0x3f;
buf[5] &= 0x1f;
dt->cs = BCD_TO_BIN(buf[0]);
dt->secs = BCD_TO_BIN(buf[1]);
dt->mins = BCD_TO_BIN(buf[2]);
dt->hours = BCD_TO_BIN(buf[3]);
dt->mday = BCD_TO_BIN(buf[4]);
dt->mon = BCD_TO_BIN(buf[5]);
ret = 0;
}
return ret;
}
static int
pcf8583_set_datetime(struct i2c_client *client, struct rtc_tm *dt, int datetoo)
{
unsigned char buf[8];
int ret, len = 6;
buf[0] = 0;
buf[1] = get_ctrl(client) | 0x80;
buf[2] = BIN_TO_BCD(dt->cs);
buf[3] = BIN_TO_BCD(dt->secs);
buf[4] = BIN_TO_BCD(dt->mins);
buf[5] = BIN_TO_BCD(dt->hours);
if (datetoo) {
len = 8;
buf[6] = BIN_TO_BCD(dt->mday) | (dt->year_off << 6);
buf[7] = BIN_TO_BCD(dt->mon) | (dt->wday << 5);
}
ret = i2c_master_send(client, (char *)buf, len);
if (ret == len)
ret = 0;
buf[1] = get_ctrl(client);
i2c_master_send(client, (char *)buf, 2);
return ret;
}
static int
pcf8583_get_ctrl(struct i2c_client *client, unsigned char *ctrl)
{
*ctrl = get_ctrl(client);
return 0;
}
static int
pcf8583_set_ctrl(struct i2c_client *client, unsigned char *ctrl)
{
unsigned char buf[2];
buf[0] = 0;
buf[1] = *ctrl;
set_ctrl(client, *ctrl);
return i2c_master_send(client, (char *)buf, 2);
}
static int
pcf8583_read_mem(struct i2c_client *client, struct mem *mem)
{
unsigned char addr[1];
struct i2c_msg msgs[2] = {
{
.addr = client->addr,
.flags = 0,
.len = 1,
.buf = addr,
}, {
.addr = client->addr,
.flags = I2C_M_RD,
.len = mem->nr,
.buf = mem->data,
}
};
if (mem->loc < 8)
return -EINVAL;
addr[0] = mem->loc;
return i2c_transfer(client->adapter, msgs, 2) == 2 ? 0 : -EIO;
}
static int
pcf8583_write_mem(struct i2c_client *client, struct mem *mem)
{
unsigned char addr[1];
struct i2c_msg msgs[2] = {
{
.addr = client->addr,
.flags = 0,
.len = 1,
.buf = addr,
}, {
.addr = client->addr,
.flags = I2C_M_NOSTART,
.len = mem->nr,
.buf = mem->data,
}
};
if (mem->loc < 8)
return -EINVAL;
addr[0] = mem->loc;
return i2c_transfer(client->adapter, msgs, 2) == 2 ? 0 : -EIO;
}
static int
pcf8583_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
switch (cmd) {
case RTC_GETDATETIME:
return pcf8583_get_datetime(client, arg);
case RTC_SETTIME:
return pcf8583_set_datetime(client, arg, 0);
case RTC_SETDATETIME:
return pcf8583_set_datetime(client, arg, 1);
case RTC_GETCTRL:
return pcf8583_get_ctrl(client, arg);
case RTC_SETCTRL:
return pcf8583_set_ctrl(client, arg);
case MEM_READ:
return pcf8583_read_mem(client, arg);
case MEM_WRITE:
return pcf8583_write_mem(client, arg);
default:
return -EINVAL;
}
}
static struct i2c_driver pcf8583_driver = {
.driver = {
.name = "PCF8583",
},
.id = I2C_DRIVERID_PCF8583,
.attach_adapter = pcf8583_probe,
.detach_client = pcf8583_detach,
.command = pcf8583_command
};
static __init int pcf8583_init(void)
{
return i2c_add_driver(&pcf8583_driver);
}
static __exit void pcf8583_exit(void)
{
i2c_del_driver(&pcf8583_driver);
}
module_init(pcf8583_init);
module_exit(pcf8583_exit);
MODULE_AUTHOR("Russell King");
MODULE_DESCRIPTION("PCF8583 I2C RTC driver");
MODULE_LICENSE("GPL");

41
drivers/acorn/char/pcf8583.h
View file

@ -1,41 +0,0 @@
/*
* linux/drivers/acorn/char/pcf8583.h
*
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
struct rtc_tm {
unsigned char cs;
unsigned char secs;
unsigned char mins;
unsigned char hours;
unsigned char mday;
unsigned char mon;
unsigned char year_off;
unsigned char wday;
};
struct mem {
unsigned int loc;
unsigned int nr;
unsigned char *data;
};
#define RTC_GETDATETIME 0
#define RTC_SETTIME 1
#define RTC_SETDATETIME 2
#define RTC_GETCTRL 3
#define RTC_SETCTRL 4
#define MEM_READ 5
#define MEM_WRITE 6
#define CTRL_STOP 0x80
#define CTRL_HOLD 0x40
#define CTRL_32KHZ 0x00
#define CTRL_MASK 0x08
#define CTRL_ALARMEN 0x04
#define CTRL_ALARM 0x02
#define CTRL_TIMER 0x01

10
drivers/i2c/busses/Kconfig
View file

@ -495,6 +495,16 @@ config I2C_VERSATILE
This driver can also be built as a module. If so, the module
will be called i2c-versatile.
config I2C_ACORN
bool "Acorn IOC/IOMD I2C bus support"
depends on I2C && ARCH_ACORN
default y
select I2C_ALGOBIT
help
Say yes if you want to support the I2C bus on Acorn platforms.
If you don't know, say Y.
config I2C_VIA
tristate "VIA 82C586B"
depends on I2C && PCI && EXPERIMENTAL

1
drivers/i2c/busses/Makefile
View file

@ -42,6 +42,7 @@ obj-$(CONFIG_I2C_SIS630) += i2c-sis630.o
obj-$(CONFIG_I2C_SIS96X) += i2c-sis96x.o
obj-$(CONFIG_I2C_STUB) += i2c-stub.o
obj-$(CONFIG_I2C_VERSATILE) += i2c-versatile.o
obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o
obj-$(CONFIG_I2C_VIA) += i2c-via.o
obj-$(CONFIG_I2C_VIAPRO) += i2c-viapro.o
obj-$(CONFIG_I2C_VOODOO3) += i2c-voodoo3.o

97
drivers/i2c/busses/i2c-acorn.c Normal file
View file

@ -0,0 +1,97 @@
/*
* linux/drivers/acorn/char/i2c.c
*
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* ARM IOC/IOMD i2c driver.
*
* On Acorn machines, the following i2c devices are on the bus:
* - PCF8583 real time clock & static RAM
*/
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/hardware/ioc.h>
#include <asm/system.h>
#define FORCE_ONES 0xdc
#define SCL 0x02
#define SDA 0x01
/*
* We must preserve all non-i2c output bits in IOC_CONTROL.
* Note also that we need to preserve the value of SCL and
* SDA outputs as well (which may be different from the
* values read back from IOC_CONTROL).
*/
static u_int force_ones;
static void ioc_setscl(void *data, int state)
{
u_int ioc_control = ioc_readb(IOC_CONTROL) & ~(SCL | SDA);
u_int ones = force_ones;
if (state)
ones |= SCL;
else
ones &= ~SCL;
force_ones = ones;
ioc_writeb(ioc_control | ones, IOC_CONTROL);
}
static void ioc_setsda(void *data, int state)
{
u_int ioc_control = ioc_readb(IOC_CONTROL) & ~(SCL | SDA);
u_int ones = force_ones;
if (state)
ones |= SDA;
else
ones &= ~SDA;
force_ones = ones;
ioc_writeb(ioc_control | ones, IOC_CONTROL);
}
static int ioc_getscl(void *data)
{
return (ioc_readb(IOC_CONTROL) & SCL) != 0;
}
static int ioc_getsda(void *data)
{
return (ioc_readb(IOC_CONTROL) & SDA) != 0;
}
static struct i2c_algo_bit_data ioc_data = {
.setsda = ioc_setsda,
.setscl = ioc_setscl,
.getsda = ioc_getsda,
.getscl = ioc_getscl,
.udelay = 80,
.timeout = 100
};
static struct i2c_adapter ioc_ops = {
.id = I2C_HW_B_IOC,
.algo_data = &ioc_data,
};
static int __init i2c_ioc_init(void)
{
force_ones = FORCE_ONES | SCL | SDA;
return i2c_bit_add_bus(&ioc_ops);
}
__initcall(i2c_ioc_init);

8
drivers/rtc/Kconfig
View file

@ -207,10 +207,12 @@ config RTC_DRV_PCF8563
config RTC_DRV_PCF8583
tristate "Philips PCF8583"
depends on RTC_CLASS && I2C
depends on RTC_CLASS && I2C && ARCH_RPC
help
If you say yes here you get support for the
Philips PCF8583 RTC chip.
If you say yes here you get support for the Philips PCF8583
RTC chip found on Acorn RiscPCs. This driver supports the
platform specific method of retrieving the current year from
the RTC's SRAM.
This driver can also be built as a module. If so, the module
will be called rtc-pcf8583.

29
drivers/rtc/rtc-pcf8583.c
View file

@ -40,7 +40,7 @@ struct pcf8583 {
#define CTRL_ALARM 0x02
#define CTRL_TIMER 0x01
static unsigned short normal_i2c[] = { I2C_CLIENT_END };
static unsigned short normal_i2c[] = { 0x50, I2C_CLIENT_END };
/* Module parameters */
I2C_CLIENT_INSMOD;
@ -81,11 +81,11 @@ static int pcf8583_get_datetime(struct i2c_client *client, struct rtc_time *dt)
buf[4] &= 0x3f;
buf[5] &= 0x1f;
dt->tm_sec = BCD_TO_BIN(buf[1]);
dt->tm_min = BCD_TO_BIN(buf[2]);
dt->tm_hour = BCD_TO_BIN(buf[3]);
dt->tm_mday = BCD_TO_BIN(buf[4]);
dt->tm_mon = BCD_TO_BIN(buf[5]);
dt->tm_sec = BCD2BIN(buf[1]);
dt->tm_min = BCD2BIN(buf[2]);
dt->tm_hour = BCD2BIN(buf[3]);
dt->tm_mday = BCD2BIN(buf[4]);
dt->tm_mon = BCD2BIN(buf[5]) - 1;
}
return ret == 2 ? 0 : -EIO;
@ -99,14 +99,14 @@ static int pcf8583_set_datetime(struct i2c_client *client, struct rtc_time *dt,
buf[0] = 0;
buf[1] = get_ctrl(client) | 0x80;
buf[2] = 0;
buf[3] = BIN_TO_BCD(dt->tm_sec);
buf[4] = BIN_TO_BCD(dt->tm_min);
buf[5] = BIN_TO_BCD(dt->tm_hour);
buf[3] = BIN2BCD(dt->tm_sec);
buf[4] = BIN2BCD(dt->tm_min);
buf[5] = BIN2BCD(dt->tm_hour);
if (datetoo) {
len = 8;
buf[6] = BIN_TO_BCD(dt->tm_mday) | (dt->tm_year << 6);
buf[7] = BIN_TO_BCD(dt->tm_mon) | (dt->tm_wday << 5);
buf[6] = BIN2BCD(dt->tm_mday) | (dt->tm_year << 6);
buf[7] = BIN2BCD(dt->tm_mon + 1) | (dt->tm_wday << 5);
}
ret = i2c_master_send(client, (char *)buf, len);
@ -226,7 +226,7 @@ static int pcf8583_rtc_read_time(struct device *dev, struct rtc_time *tm)
*/
year_offset += 4;
tm->tm_year = real_year + year_offset + year[1] * 100;
tm->tm_year = (real_year + year_offset + year[1] * 100) - 1900;
return 0;
}
@ -237,6 +237,7 @@ static int pcf8583_rtc_set_time(struct device *dev, struct rtc_time *tm)
unsigned char year[2], chk;
struct rtc_mem cmos_year = { CMOS_YEAR, sizeof(year), year };
struct rtc_mem cmos_check = { CMOS_CHECKSUM, 1, &chk };
unsigned int proper_year = tm->tm_year + 1900;
int ret;
/*
@ -258,8 +259,8 @@ static int pcf8583_rtc_set_time(struct device *dev, struct rtc_time *tm)
chk -= year[1] + year[0];
year[1] = tm->tm_year / 100;
year[0] = tm->tm_year % 100;
year[1] = proper_year / 100;
year[0] = proper_year % 100;
chk += year[1] + year[0];

4
drivers/scsi/arm/cumana_2.c
View file

@ -178,10 +178,10 @@ cumanascsi_2_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp,
dma_dir = DMA_MODE_READ,
alatch_dir = ALATCH_DMA_IN;
dma_map_sg(dev, info->sg, bufs + 1, map_dir);
dma_map_sg(dev, info->sg, bufs, map_dir);
disable_dma(dmach);
set_dma_sg(dmach, info->sg, bufs + 1);
set_dma_sg(dmach, info->sg, bufs);
writeb(alatch_dir, info->base + CUMANASCSI2_ALATCH);
set_dma_mode(dmach, dma_dir);
enable_dma(dmach);

4
drivers/scsi/arm/eesox.c
View file

@ -175,10 +175,10 @@ eesoxscsi_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp,
map_dir = DMA_FROM_DEVICE,
dma_dir = DMA_MODE_READ;
dma_map_sg(dev, info->sg, bufs + 1, map_dir);
dma_map_sg(dev, info->sg, bufs, map_dir);
disable_dma(dmach);
set_dma_sg(dmach, info->sg, bufs + 1);
set_dma_sg(dmach, info->sg, bufs);
set_dma_mode(dmach, dma_dir);
enable_dma(dmach);
return fasdma_real_all;

9
drivers/scsi/arm/fas216.c
View file

@ -633,7 +633,7 @@ static void fas216_updateptrs(FAS216_Info *info, int bytes_transferred)
BUG_ON(bytes_transferred < 0);
info->SCpnt->request_bufflen -= bytes_transferred;
SCp->phase -= bytes_transferred;
while (bytes_transferred != 0) {
if (SCp->this_residual > bytes_transferred)
@ -715,7 +715,7 @@ static void fas216_cleanuptransfer(FAS216_Info *info)
return;
if (dmatype == fasdma_real_all)
total = info->SCpnt->request_bufflen;
total = info->scsi.SCp.phase;
else
total = info->scsi.SCp.this_residual;
@ -753,7 +753,7 @@ static void fas216_transfer(FAS216_Info *info)
fas216_log(info, LOG_BUFFER,
"starttransfer: buffer %p length 0x%06x reqlen 0x%06x",
info->scsi.SCp.ptr, info->scsi.SCp.this_residual,
info->SCpnt->request_bufflen);
info->scsi.SCp.phase);
if (!info->scsi.SCp.ptr) {
fas216_log(info, LOG_ERROR, "null buffer passed to "
@ -784,7 +784,7 @@ static void fas216_transfer(FAS216_Info *info)
info->dma.transfer_type = dmatype;
if (dmatype == fasdma_real_all)
fas216_set_stc(info, info->SCpnt->request_bufflen);
fas216_set_stc(info, info->scsi.SCp.phase);
else
fas216_set_stc(info, info->scsi.SCp.this_residual);
@ -2114,6 +2114,7 @@ request_sense:
SCpnt->SCp.buffers_residual = 0;
SCpnt->SCp.ptr = (char *)SCpnt->sense_buffer;
SCpnt->SCp.this_residual = sizeof(SCpnt->sense_buffer);
SCpnt->SCp.phase = sizeof(SCpnt->sense_buffer);
SCpnt->SCp.Message = 0;
SCpnt->SCp.Status = 0;
SCpnt->request_bufflen = sizeof(SCpnt->sense_buffer);

5
drivers/scsi/arm/powertec.c
View file

@ -148,10 +148,10 @@ powertecscsi_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp,
map_dir = DMA_FROM_DEVICE,
dma_dir = DMA_MODE_READ;
dma_map_sg(dev, info->sg, bufs + 1, map_dir);
dma_map_sg(dev, info->sg, bufs, map_dir);
disable_dma(dmach);
set_dma_sg(dmach, info->sg, bufs + 1);
set_dma_sg(dmach, info->sg, bufs);
set_dma_mode(dmach, dma_dir);
enable_dma(dmach);
return fasdma_real_all;
@ -342,6 +342,7 @@ powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
info->base = base;
powertecscsi_terminator_ctl(host, term[ec->slot_no]);
info->ec = ec;
info->info.scsi.io_base = base + POWERTEC_FAS216_OFFSET;
info->info.scsi.io_shift = POWERTEC_FAS216_SHIFT;
info->info.scsi.irq = ec->irq;

2
drivers/scsi/arm/scsi.h
View file

@ -80,6 +80,7 @@ static inline void init_SCp(struct scsi_cmnd *SCpnt)
(page_address(SCpnt->SCp.buffer->page) +
SCpnt->SCp.buffer->offset);
SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
SCpnt->SCp.phase = SCpnt->request_bufflen;
#ifdef BELT_AND_BRACES
/*
@ -98,6 +99,7 @@ static inline void init_SCp(struct scsi_cmnd *SCpnt)
} else {
SCpnt->SCp.ptr = (unsigned char *)SCpnt->request_buffer;
SCpnt->SCp.this_residual = SCpnt->request_bufflen;
SCpnt->SCp.phase = SCpnt->request_bufflen;
}
/*