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linux/drivers/sbus/char/uctrl.c

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sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
/* uctrl.c: TS102 Microcontroller interface on Tadpole Sparcbook 3
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
* Copyright 1999 Derrick J Brashear (shadow@dementia.org)
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
* Copyright 2008 David S. Miller (davem@davemloft.net)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
sbus: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 14:36:39 +08:00
#include <linux/mutex.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <linux/ioport.h>
#include <linux/miscdevice.h>
#include <linux/mm.h>
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
#include <linux/of.h>
#include <linux/of_device.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#define UCTRL_MINOR 174
#define DEBUG 1
#ifdef DEBUG
#define dprintk(x) printk x
#else
#define dprintk(x)
#endif
struct uctrl_regs {
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
u32 uctrl_intr;
u32 uctrl_data;
u32 uctrl_stat;
u32 uctrl_xxx[5];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
struct ts102_regs {
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
u32 card_a_intr;
u32 card_a_stat;
u32 card_a_ctrl;
u32 card_a_xxx;
u32 card_b_intr;
u32 card_b_stat;
u32 card_b_ctrl;
u32 card_b_xxx;
u32 uctrl_intr;
u32 uctrl_data;
u32 uctrl_stat;
u32 uctrl_xxx;
u32 ts102_xxx[4];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
};
/* Bits for uctrl_intr register */
#define UCTRL_INTR_TXE_REQ 0x01 /* transmit FIFO empty int req */
#define UCTRL_INTR_TXNF_REQ 0x02 /* transmit FIFO not full int req */
#define UCTRL_INTR_RXNE_REQ 0x04 /* receive FIFO not empty int req */
#define UCTRL_INTR_RXO_REQ 0x08 /* receive FIFO overflow int req */
#define UCTRL_INTR_TXE_MSK 0x10 /* transmit FIFO empty mask */
#define UCTRL_INTR_TXNF_MSK 0x20 /* transmit FIFO not full mask */
#define UCTRL_INTR_RXNE_MSK 0x40 /* receive FIFO not empty mask */
#define UCTRL_INTR_RXO_MSK 0x80 /* receive FIFO overflow mask */
/* Bits for uctrl_stat register */
#define UCTRL_STAT_TXE_STA 0x01 /* transmit FIFO empty status */
#define UCTRL_STAT_TXNF_STA 0x02 /* transmit FIFO not full status */
#define UCTRL_STAT_RXNE_STA 0x04 /* receive FIFO not empty status */
#define UCTRL_STAT_RXO_STA 0x08 /* receive FIFO overflow status */
sbus: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 14:36:39 +08:00
static DEFINE_MUTEX(uctrl_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static const char *uctrl_extstatus[16] = {
"main power available",
"internal battery attached",
"external battery attached",
"external VGA attached",
"external keyboard attached",
"external mouse attached",
"lid down",
"internal battery currently charging",
"external battery currently charging",
"internal battery currently discharging",
"external battery currently discharging",
};
/* Everything required for one transaction with the uctrl */
struct uctrl_txn {
u8 opcode;
u8 inbits;
u8 outbits;
u8 *inbuf;
u8 *outbuf;
};
struct uctrl_status {
u8 current_temp; /* 0x07 */
u8 reset_status; /* 0x0b */
u16 event_status; /* 0x0c */
u16 error_status; /* 0x10 */
u16 external_status; /* 0x11, 0x1b */
u8 internal_charge; /* 0x18 */
u8 external_charge; /* 0x19 */
u16 control_lcd; /* 0x20 */
u8 control_bitport; /* 0x21 */
u8 speaker_volume; /* 0x23 */
u8 control_tft_brightness; /* 0x24 */
u8 control_kbd_repeat_delay; /* 0x28 */
u8 control_kbd_repeat_period; /* 0x29 */
u8 control_screen_contrast; /* 0x2F */
};
enum uctrl_opcode {
READ_SERIAL_NUMBER=0x1,
READ_ETHERNET_ADDRESS=0x2,
READ_HARDWARE_VERSION=0x3,
READ_MICROCONTROLLER_VERSION=0x4,
READ_MAX_TEMPERATURE=0x5,
READ_MIN_TEMPERATURE=0x6,
READ_CURRENT_TEMPERATURE=0x7,
READ_SYSTEM_VARIANT=0x8,
READ_POWERON_CYCLES=0x9,
READ_POWERON_SECONDS=0xA,
READ_RESET_STATUS=0xB,
READ_EVENT_STATUS=0xC,
READ_REAL_TIME_CLOCK=0xD,
READ_EXTERNAL_VGA_PORT=0xE,
READ_MICROCONTROLLER_ROM_CHECKSUM=0xF,
READ_ERROR_STATUS=0x10,
READ_EXTERNAL_STATUS=0x11,
READ_USER_CONFIGURATION_AREA=0x12,
READ_MICROCONTROLLER_VOLTAGE=0x13,
READ_INTERNAL_BATTERY_VOLTAGE=0x14,
READ_DCIN_VOLTAGE=0x15,
READ_HORIZONTAL_POINTER_VOLTAGE=0x16,
READ_VERTICAL_POINTER_VOLTAGE=0x17,
READ_INTERNAL_BATTERY_CHARGE_LEVEL=0x18,
READ_EXTERNAL_BATTERY_CHARGE_LEVEL=0x19,
READ_REAL_TIME_CLOCK_ALARM=0x1A,
READ_EVENT_STATUS_NO_RESET=0x1B,
READ_INTERNAL_KEYBOARD_LAYOUT=0x1C,
READ_EXTERNAL_KEYBOARD_LAYOUT=0x1D,
READ_EEPROM_STATUS=0x1E,
CONTROL_LCD=0x20,
CONTROL_BITPORT=0x21,
SPEAKER_VOLUME=0x23,
CONTROL_TFT_BRIGHTNESS=0x24,
CONTROL_WATCHDOG=0x25,
CONTROL_FACTORY_EEPROM_AREA=0x26,
CONTROL_KBD_TIME_UNTIL_REPEAT=0x28,
CONTROL_KBD_TIME_BETWEEN_REPEATS=0x29,
CONTROL_TIMEZONE=0x2A,
CONTROL_MARK_SPACE_RATIO=0x2B,
CONTROL_DIAGNOSTIC_MODE=0x2E,
CONTROL_SCREEN_CONTRAST=0x2F,
RING_BELL=0x30,
SET_DIAGNOSTIC_STATUS=0x32,
CLEAR_KEY_COMBINATION_TABLE=0x33,
PERFORM_SOFTWARE_RESET=0x34,
SET_REAL_TIME_CLOCK=0x35,
RECALIBRATE_POINTING_STICK=0x36,
SET_BELL_FREQUENCY=0x37,
SET_INTERNAL_BATTERY_CHARGE_RATE=0x39,
SET_EXTERNAL_BATTERY_CHARGE_RATE=0x3A,
SET_REAL_TIME_CLOCK_ALARM=0x3B,
READ_EEPROM=0x40,
WRITE_EEPROM=0x41,
WRITE_TO_STATUS_DISPLAY=0x42,
DEFINE_SPECIAL_CHARACTER=0x43,
DEFINE_KEY_COMBINATION_ENTRY=0x50,
DEFINE_STRING_TABLE_ENTRY=0x51,
DEFINE_STATUS_SCREEN_DISPLAY=0x52,
PERFORM_EMU_COMMANDS=0x64,
READ_EMU_REGISTER=0x65,
WRITE_EMU_REGISTER=0x66,
READ_EMU_RAM=0x67,
WRITE_EMU_RAM=0x68,
READ_BQ_REGISTER=0x69,
WRITE_BQ_REGISTER=0x6A,
SET_USER_PASSWORD=0x70,
VERIFY_USER_PASSWORD=0x71,
GET_SYSTEM_PASSWORD_KEY=0x72,
VERIFY_SYSTEM_PASSWORD=0x73,
POWER_OFF=0x82,
POWER_RESTART=0x83,
};
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
static struct uctrl_driver {
struct uctrl_regs __iomem *regs;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
int irq;
int pending;
struct uctrl_status status;
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
} *global_driver;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
static void uctrl_get_event_status(struct uctrl_driver *);
static void uctrl_get_external_status(struct uctrl_driver *);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sbus: changed ioctls to unlocked Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-15 10:46:19 +08:00
static long
uctrl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
switch (cmd) {
default:
return -EINVAL;
}
return 0;
}
static int
uctrl_open(struct inode *inode, struct file *file)
{
sbus: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 14:36:39 +08:00
mutex_lock(&uctrl_mutex);
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
uctrl_get_event_status(global_driver);
uctrl_get_external_status(global_driver);
sbus: autoconvert trivial BKL users to private mutex All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-21 14:36:39 +08:00
mutex_unlock(&uctrl_mutex);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return 0;
}
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
static irqreturn_t uctrl_interrupt(int irq, void *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
return IRQ_HANDLED;
}
[PATCH] mark struct file_operations const 6 Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 16:55:34 +08:00
static const struct file_operations uctrl_fops = {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.owner = THIS_MODULE,
.llseek = no_llseek,
sbus: changed ioctls to unlocked Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-15 10:46:19 +08:00
.unlocked_ioctl = uctrl_ioctl,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.open = uctrl_open,
};
static struct miscdevice uctrl_dev = {
UCTRL_MINOR,
"uctrl",
&uctrl_fops
};
/* Wait for space to write, then write to it */
#define WRITEUCTLDATA(value) \
{ \
unsigned int i; \
for (i = 0; i < 10000; i++) { \
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
if (UCTRL_STAT_TXNF_STA & sbus_readl(&driver->regs->uctrl_stat)) \
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
break; \
} \
dprintk(("write data 0x%02x\n", value)); \
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
sbus_writel(value, &driver->regs->uctrl_data); \
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
/* Wait for something to read, read it, then clear the bit */
#define READUCTLDATA(value) \
{ \
unsigned int i; \
value = 0; \
for (i = 0; i < 10000; i++) { \
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
if ((UCTRL_STAT_RXNE_STA & sbus_readl(&driver->regs->uctrl_stat)) == 0) \
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
break; \
udelay(1); \
} \
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
value = sbus_readl(&driver->regs->uctrl_data); \
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dprintk(("read data 0x%02x\n", value)); \
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
sbus_writel(UCTRL_STAT_RXNE_STA, &driver->regs->uctrl_stat); \
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
static void uctrl_do_txn(struct uctrl_driver *driver, struct uctrl_txn *txn)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
int stat, incnt, outcnt, bytecnt, intr;
u32 byte;
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
stat = sbus_readl(&driver->regs->uctrl_stat);
intr = sbus_readl(&driver->regs->uctrl_intr);
sbus_writel(stat, &driver->regs->uctrl_stat);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dprintk(("interrupt stat 0x%x int 0x%x\n", stat, intr));
incnt = txn->inbits;
outcnt = txn->outbits;
byte = (txn->opcode << 8);
WRITEUCTLDATA(byte);
bytecnt = 0;
while (incnt > 0) {
byte = (txn->inbuf[bytecnt] << 8);
WRITEUCTLDATA(byte);
incnt--;
bytecnt++;
}
/* Get the ack */
READUCTLDATA(byte);
dprintk(("ack was %x\n", (byte >> 8)));
bytecnt = 0;
while (outcnt > 0) {
READUCTLDATA(byte);
txn->outbuf[bytecnt] = (byte >> 8);
dprintk(("set byte to %02x\n", byte));
outcnt--;
bytecnt++;
}
}
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
static void uctrl_get_event_status(struct uctrl_driver *driver)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct uctrl_txn txn;
u8 outbits[2];
txn.opcode = READ_EVENT_STATUS;
txn.inbits = 0;
txn.outbits = 2;
[PATCH] sbus/char/uctrl: missing prototypes and NULL noise removal Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-06 18:54:54 +08:00
txn.inbuf = NULL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
txn.outbuf = outbits;
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
uctrl_do_txn(driver, &txn);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dprintk(("bytes %x %x\n", (outbits[0] & 0xff), (outbits[1] & 0xff)));
driver->status.event_status =
((outbits[0] & 0xff) << 8) | (outbits[1] & 0xff);
dprintk(("ev is %x\n", driver->status.event_status));
}
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
static void uctrl_get_external_status(struct uctrl_driver *driver)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
struct uctrl_txn txn;
u8 outbits[2];
int i, v;
txn.opcode = READ_EXTERNAL_STATUS;
txn.inbits = 0;
txn.outbits = 2;
[PATCH] sbus/char/uctrl: missing prototypes and NULL noise removal Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-06 18:54:54 +08:00
txn.inbuf = NULL;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
txn.outbuf = outbits;
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
uctrl_do_txn(driver, &txn);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
dprintk(("bytes %x %x\n", (outbits[0] & 0xff), (outbits[1] & 0xff)));
driver->status.external_status =
((outbits[0] * 256) + (outbits[1]));
dprintk(("ex is %x\n", driver->status.external_status));
v = driver->status.external_status;
for (i = 0; v != 0; i++, v >>= 1) {
if (v & 1) {
dprintk(("%s%s", " ", uctrl_extstatus[i]));
}
}
dprintk(("\n"));
}
Drivers: sbus: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Senna Tschudin <peter.senna@gmail.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-22 05:24:23 +08:00
static int uctrl_probe(struct platform_device *op)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
struct uctrl_driver *p;
int err = -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p) {
printk(KERN_ERR "uctrl: Unable to allocate device struct.\n");
goto out;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
p->regs = of_ioremap(&op->resource[0], 0,
resource_size(&op->resource[0]),
"uctrl");
if (!p->regs) {
printk(KERN_ERR "uctrl: Unable to map registers.\n");
goto out_free;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc/of: Move of_device fields into struct pdev_archdata This patch moves SPARC architecture specific data members out of struct of_device and into the pdev_archdata structure. The reason for this change is to unify the struct of_device definition amongst all the architectures. It also remvoes the .sysdata, .slot, .portid and .clock_freq properties because they aren't actually used by anything. A subsequent patch will replace struct of_device entirely with struct platform_device and the of_platform support code will share common routines with the platform bus (but the bus instances themselves can remain separate). This patch also adds 'struct resources *resource' and num_resources to match the fields defined in struct platform_device. After this change, 'struct platform_device' can be used as a drop-in replacement for 'struct of_platform'. This change is in preparation for merging the of_platform_bus_type with the platform_bus_type. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-19 01:09:58 +08:00
p->irq = op->archdata.irqs[0];
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
err = request_irq(p->irq, uctrl_interrupt, 0, "uctrl", p);
if (err) {
printk(KERN_ERR "uctrl: Unable to register irq.\n");
goto out_iounmap;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
err = misc_register(&uctrl_dev);
if (err) {
printk(KERN_ERR "uctrl: Unable to register misc device.\n");
goto out_free_irq;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
sbus_writel(UCTRL_INTR_RXNE_REQ|UCTRL_INTR_RXNE_MSK, &p->regs->uctrl_intr);
printk(KERN_INFO "%s: uctrl regs[0x%p] (irq %d)\n",
of: Always use 'struct device.of_node' to get device node pointer. The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-04-14 07:12:29 +08:00
op->dev.of_node->full_name, p->regs, p->irq);
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
uctrl_get_event_status(p);
uctrl_get_external_status(p);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
dev_set_drvdata(&op->dev, p);
global_driver = p;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
out:
return err;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
out_free_irq:
free_irq(p->irq, p);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
out_iounmap:
of_iounmap(&op->resource[0], p->regs, resource_size(&op->resource[0]));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
out_free:
kfree(p);
goto out;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
Drivers: sbus: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Senna Tschudin <peter.senna@gmail.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-22 05:24:23 +08:00
static int uctrl_remove(struct platform_device *op)
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
{
struct uctrl_driver *p = dev_get_drvdata(&op->dev);
if (p) {
misc_deregister(&uctrl_dev);
free_irq(p->irq, p);
of_iounmap(&op->resource[0], p->regs, resource_size(&op->resource[0]));
kfree(p);
}
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
sparc: Annotate of_device_id arrays with const or __initdata. As suggested by Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-31 16:23:17 +08:00
static const struct of_device_id uctrl_match[] = {
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
{
.name = "uctrl",
},
{},
};
MODULE_DEVICE_TABLE(of, uctrl_match);
dt/sparc: Eliminate users of of_platform_{,un}register_driver Get rid of old users of of_platform_driver in arch/sparc. Most of_platform_driver users can be converted to use the platform_bus directly. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-02-23 11:01:33 +08:00
static struct platform_driver uctrl_driver = {
of: Remove duplicate fields from of_platform_driver .name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com>
2010-04-14 07:13:02 +08:00
.driver = {
.name = "uctrl",
.of_match_table = uctrl_match,
},
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
.probe = uctrl_probe,
Drivers: sbus: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Senna Tschudin <peter.senna@gmail.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-22 05:24:23 +08:00
.remove = uctrl_remove,
sparc: Convert uctrl driver to OF driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-28 09:39:47 +08:00
};
sbus: convert drivers/sbus/char/* to use module_platform_driver() This patch converts the drivers in drivers/sbus/char/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-27 03:04:25 +08:00
module_platform_driver(uctrl_driver);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
MODULE_LICENSE("GPL");