diff options
Diffstat (limited to 'kernel/arch/cris/include/arch-v32/arch/io.h')
| -rw-r--r-- | kernel/arch/cris/include/arch-v32/arch/io.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/kernel/arch/cris/include/arch-v32/arch/io.h b/kernel/arch/cris/include/arch-v32/arch/io.h new file mode 100644 index 000000000..adc548435 --- /dev/null +++ b/kernel/arch/cris/include/arch-v32/arch/io.h @@ -0,0 +1,140 @@ +#ifndef _ASM_ARCH_CRIS_IO_H +#define _ASM_ARCH_CRIS_IO_H + +#include <linux/spinlock.h> +#include <hwregs/reg_map.h> +#include <hwregs/reg_rdwr.h> +#include <hwregs/gio_defs.h> + +enum crisv32_io_dir +{ + crisv32_io_dir_in = 0, + crisv32_io_dir_out = 1 +}; + +struct crisv32_ioport +{ + volatile unsigned long *oe; + volatile unsigned long *data; + volatile unsigned long *data_in; + unsigned int pin_count; + spinlock_t lock; +}; + +struct crisv32_iopin +{ + struct crisv32_ioport* port; + int bit; +}; + +extern struct crisv32_ioport crisv32_ioports[]; + +extern struct crisv32_iopin crisv32_led1_green; +extern struct crisv32_iopin crisv32_led1_red; +extern struct crisv32_iopin crisv32_led2_green; +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) +{ + unsigned long flags; + spin_lock_irqsave(&iopin->port->lock, flags); + + if (iopin->port->data) { + 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) +{ + unsigned long flags; + spin_lock_irqsave(&iopin->port->lock, flags); + + if (iopin->port->oe) { + 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) +{ + return ((*iopin->port->data_in & iopin->bit) ? 1 : 0); +} + +int crisv32_io_get(struct crisv32_iopin* iopin, + unsigned int port, unsigned int pin); +int crisv32_io_get_name(struct crisv32_iopin* iopin, + const char *name); + +#define CRIS_LED_OFF 0x00 +#define CRIS_LED_GREEN 0x01 +#define CRIS_LED_RED 0x02 +#define CRIS_LED_ORANGE (CRIS_LED_GREEN | CRIS_LED_RED) + +#if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO)) +#define CRIS_LED_NETWORK_GRP0_SET(x) \ + do { \ + CRIS_LED_NETWORK_GRP0_SET_G((x) & CRIS_LED_GREEN); \ + CRIS_LED_NETWORK_GRP0_SET_R((x) & CRIS_LED_RED); \ + } while (0) +#else +#define CRIS_LED_NETWORK_GRP0_SET(x) while (0) {} +#endif + +#define CRIS_LED_NETWORK_GRP0_SET_G(x) \ + crisv32_io_set(&crisv32_led_net0_green, !(x)); + +#define CRIS_LED_NETWORK_GRP0_SET_R(x) \ + crisv32_io_set(&crisv32_led_net0_red, !(x)); + +#if defined(CONFIG_ETRAX_NBR_LED_GRP_TWO) +#define CRIS_LED_NETWORK_GRP1_SET(x) \ + do { \ + CRIS_LED_NETWORK_GRP1_SET_G((x) & CRIS_LED_GREEN); \ + CRIS_LED_NETWORK_GRP1_SET_R((x) & CRIS_LED_RED); \ + } while (0) +#else +#define CRIS_LED_NETWORK_GRP1_SET(x) while (0) {} +#endif + +#define CRIS_LED_NETWORK_GRP1_SET_G(x) \ + crisv32_io_set(&crisv32_led_net1_green, !(x)); + +#define CRIS_LED_NETWORK_GRP1_SET_R(x) \ + crisv32_io_set(&crisv32_led_net1_red, !(x)); + +#define CRIS_LED_ACTIVE_SET(x) \ + do { \ + CRIS_LED_ACTIVE_SET_G((x) & CRIS_LED_GREEN); \ + CRIS_LED_ACTIVE_SET_R((x) & CRIS_LED_RED); \ + } while (0) + +#define CRIS_LED_ACTIVE_SET_G(x) \ + crisv32_io_set(&crisv32_led2_green, !(x)); +#define CRIS_LED_ACTIVE_SET_R(x) \ + crisv32_io_set(&crisv32_led2_red, !(x)); +#define CRIS_LED_DISK_WRITE(x) \ + do{\ + crisv32_io_set(&crisv32_led3_green, !(x)); \ + crisv32_io_set(&crisv32_led3_red, !(x)); \ + }while(0) +#define CRIS_LED_DISK_READ(x) \ + crisv32_io_set(&crisv32_led3_green, !(x)); + +#endif |