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CRIS v32: Minor fixes for io.h

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- Shorten include paths for machine dependent header files.
- Add volatile to hardeware register pointers.
- Add spinlocks around critical region.
- Expand macros for handling of leds.
This commit is contained in:
Jesper Nilsson 2007-12-03 11:16:25 +01:00
parent 9ce1ea751f
commit d8ca6b1593
1 changed files with 55 additions and 15 deletions
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70
include/asm-cris/arch-v32/io.h
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@ -1,9 +1,10 @@
#ifndef _ASM_ARCH_CRIS_IO_H
#define _ASM_ARCH_CRIS_IO_H
#include <asm/arch/hwregs/reg_map.h>
#include <asm/arch/hwregs/reg_rdwr.h>
#include <asm/arch/hwregs/gio_defs.h>
#include <linux/spinlock.h>
#include <hwregs/reg_map.h>
#include <hwregs/reg_rdwr.h>
#include <hwregs/gio_defs.h>
enum crisv32_io_dir
{
@ -13,10 +14,11 @@ enum crisv32_io_dir
struct crisv32_ioport
{
unsigned long* oe;
unsigned long* data;
unsigned long* data_in;
volatile unsigned long *oe;
volatile unsigned long *data;
volatile unsigned long *data_in;
unsigned int pin_count;
spinlock_t lock;
};
struct crisv32_iopin
@ -34,22 +36,37 @@ extern struct crisv32_iopin crisv32_led2_red;
extern struct crisv32_iopin crisv32_led3_green;
extern struct crisv32_iopin crisv32_led3_red;
extern struct crisv32_iopin crisv32_led_net0_green;
extern struct crisv32_iopin crisv32_led_net0_red;
extern struct crisv32_iopin crisv32_led_net1_green;
extern struct crisv32_iopin crisv32_led_net1_red;
static inline void crisv32_io_set(struct crisv32_iopin* iopin,
int val)
{
long flags;
spin_lock_irqsave(&iopin->port->lock, flags);
if (val)
*iopin->port->data |= iopin->bit;
else
*iopin->port->data &= ~iopin->bit;
spin_unlock_irqrestore(&iopin->port->lock, flags);
}
static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
enum crisv32_io_dir dir)
{
long flags;
spin_lock_irqsave(&iopin->port->lock, flags);
if (dir == crisv32_io_dir_in)
*iopin->port->oe &= ~iopin->bit;
else
*iopin->port->oe |= iopin->bit;
spin_unlock_irqrestore(&iopin->port->lock, flags);
}
static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
@ -60,28 +77,51 @@ static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
int crisv32_io_get(struct crisv32_iopin* iopin,
unsigned int port, unsigned int pin);
int crisv32_io_get_name(struct crisv32_iopin* iopin,
char* name);
const char *name);
#define LED_OFF 0x00
#define LED_GREEN 0x01
#define LED_RED 0x02
#define LED_ORANGE (LED_GREEN | LED_RED)
#define LED_NETWORK_SET(x) \
do { \
LED_NETWORK_SET_G((x) & LED_GREEN); \
LED_NETWORK_SET_R((x) & LED_RED); \
#if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO))
#define LED_NETWORK_GRP0_SET(x) \
do { \
LED_NETWORK_GRP0_SET_G((x) & LED_GREEN); \
LED_NETWORK_GRP0_SET_R((x) & LED_RED); \
} while (0)
#else
#define LED_NETWORK_GRP0_SET(x) while (0) {}
#endif
#define LED_NETWORK_GRP0_SET_G(x) \
crisv32_io_set(&crisv32_led_net0_green, !(x));
#define LED_NETWORK_GRP0_SET_R(x) \
crisv32_io_set(&crisv32_led_net0_red, !(x));
#if defined(CONFIG_ETRAX_NBR_LED_GRP_TWO)
#define LED_NETWORK_GRP1_SET(x) \
do { \
LED_NETWORK_GRP1_SET_G((x) & LED_GREEN); \
LED_NETWORK_GRP1_SET_R((x) & LED_RED); \
} while (0)
#else
#define LED_NETWORK_GRP1_SET(x) while (0) {}
#endif
#define LED_NETWORK_GRP1_SET_G(x) \
crisv32_io_set(&crisv32_led_net1_green, !(x));
#define LED_NETWORK_GRP1_SET_R(x) \
crisv32_io_set(&crisv32_led_net1_red, !(x));
#define LED_ACTIVE_SET(x) \
do { \
LED_ACTIVE_SET_G((x) & LED_GREEN); \
LED_ACTIVE_SET_R((x) & LED_RED); \
} while (0)
#define LED_NETWORK_SET_G(x) \
crisv32_io_set(&crisv32_led1_green, !(x));
#define LED_NETWORK_SET_R(x) \
crisv32_io_set(&crisv32_led1_red, !(x));
#define LED_ACTIVE_SET_G(x) \
crisv32_io_set(&crisv32_led2_green, !(x));
#define LED_ACTIVE_SET_R(x) \