diff options
| -rw-r--r-- | target/linux/danube/files/drivers/char/danube_led.c | 247 |
1 files changed, 51 insertions, 196 deletions
diff --git a/target/linux/danube/files/drivers/char/danube_led.c b/target/linux/danube/files/drivers/char/danube_led.c index 8f5758933..38ac4c170 100644 --- a/target/linux/danube/files/drivers/char/danube_led.c +++ b/target/linux/danube/files/drivers/char/danube_led.c @@ -23,212 +23,68 @@ #include <linux/version.h> #include <linux/types.h> #include <linux/fs.h> -#include <linux/miscdevice.h> #include <linux/init.h> #include <asm/uaccess.h> #include <asm/unistd.h> #include <linux/errno.h> #include <asm/danube/danube.h> #include <asm/danube/danube_gpio.h> +#include <asm/delay.h> -#define LED_CONFIG 0x01 +#define DANUBE_LED_CLK_EDGE DANUBE_LED_FALLING +//#define DANUBE_LED_CLK_EDGE DANUBE_LED_RISING -#define CONFIG_OPERATION_UPDATE_SOURCE 0x0001 -#define CONFIG_OPERATION_BLINK 0x0002 -#define CONFIG_OPERATION_UPDATE_CLOCK 0x0004 -#define CONFIG_OPERATION_STORE_MODE 0x0008 -#define CONFIG_OPERATION_SHIFT_CLOCK 0x0010 -#define CONFIG_OPERATION_DATA_OFFSET 0x0020 -#define CONFIG_OPERATION_NUMBER_OF_LED 0x0040 -#define CONFIG_OPERATION_DATA 0x0080 -#define CONFIG_OPERATION_MIPS0_ACCESS 0x0100 -#define CONFIG_DATA_CLOCK_EDGE 0x0200 +#define DANUBE_LED_SPEED DANUBE_LED_8HZ -#define DANUBE_LED_CLK_EDGE DANUBE_LED_FALLING -//#define DANUBE_LED_CLK_EDGE DANUBE_LED_RISING - -#define LED_SH_PORT 0 -#define LED_SH_PIN 4 -#define LED_SH_DIR 1 -#define LED_SH_ALTSEL0 1 -#define LED_SH_ALTSEL1 0 -#define LED_SH_OPENDRAIN 1 -#define LED_D_PORT 0 -#define LED_D_PIN 5 -#define LED_D_DIR 1 -#define LED_D_ALTSEL0 1 -#define LED_D_ALTSEL1 0 -#define LED_D_OPENDRAIN 1 -#define LED_ST_PORT 0 -#define LED_ST_PIN 6 -#define LED_ST_DIR 1 -#define LED_ST_ALTSEL0 1 -#define LED_ST_ALTSEL1 0 -#define LED_ST_OPENDRAIN 1 - -#define LED_ADSL0_PORT 0 -#define LED_ADSL0_PIN 4 -#define LED_ADSL0_DIR 1 -#define LED_ADSL0_ALTSEL0 0 -#define LED_ADSL0_ALTSEL1 1 -#define LED_ADSL0_OPENDRAIN 1 -#define LED_ADSL1_PORT 0 -#define LED_ADSL1_PIN 5 -#define LED_ADSL1_DIR 1 -#define LED_ADSL1_ALTSEL0 1 -#define LED_ADSL1_ALTSEL1 1 -#define LED_ADSL1_OPENDRAIN 1 - -#if (LED_SH_PORT == LED_ADSL0_PORT && LED_SH_PIN == LED_ADSL0_PIN) \ - || (LED_D_PORT == LED_ADSL0_PORT && LED_D_PIN == LED_ADSL0_PIN) \ - || (LED_ST_PORT == LED_ADSL0_PORT && LED_ST_PIN == LED_ADSL0_PIN) \ - || (LED_SH_PORT == LED_ADSL1_PORT && LED_SH_PIN == LED_ADSL1_PIN) \ - || (LED_D_PORT == LED_ADSL1_PORT && LED_D_PIN == LED_ADSL1_PIN) \ - || (LED_ST_PORT == LED_ADSL1_PORT && LED_ST_PIN == LED_ADSL1_PIN) - #define ADSL_LED_IS_EXCLUSIVE 1 -#else - #define ADSL_LED_IS_EXCLUSIVE 0 -#endif - -#if LED_SH_DIR - #define LED_SH_DIR_SETUP danube_port_set_dir_out -#else - #define LED_SH_DIR_SETUP danube_port_clear_dir_out -#endif -#if LED_SH_ALTSEL0 - #define LED_SH_ALTSEL0_SETUP danube_port_set_altsel0 -#else - #define LED_SH_ALTSEL0_SETUP danube_port_clear_altsel0 -#endif -#if LED_SH_ALTSEL1 - #define LED_SH_ALTSEL1_SETUP danube_port_set_altsel1 -#else - #define LED_SH_ALTSEL1_SETUP danube_port_clear_altsel1 -#endif -#if LED_SH_OPENDRAIN - #define LED_SH_OPENDRAIN_SETUP danube_port_set_open_drain -#else - #define LED_SH_OPENDRAIN_SETUP danube_port_clear_open_drain -#endif - -#if LED_D_DIR - #define LED_D_DIR_SETUP danube_port_set_dir_out -#else - #define LED_D_DIR_SETUP danube_port_clear_dir_out -#endif -#if LED_D_ALTSEL0 - #define LED_D_ALTSEL0_SETUP danube_port_set_altsel0 -#else - #define LED_D_ALTSEL0_SETUP danube_port_clear_altsel0 -#endif -#if LED_D_ALTSEL1 - #define LED_D_ALTSEL1_SETUP danube_port_set_altsel1 -#else - #define LED_D_ALTSEL1_SETUP danube_port_clear_altsel1 -#endif -#if LED_D_OPENDRAIN - #define LED_D_OPENDRAIN_SETUP danube_port_set_open_drain -#else - #define LED_D_OPENDRAIN_SETUP danube_port_clear_open_drain -#endif - -#if LED_ST_DIR - #define LED_ST_DIR_SETUP danube_port_set_dir_out -#else - #define LED_ST_DIR_SETUP danube_port_clear_dir_out -#endif -#if LED_ST_ALTSEL0 - #define LED_ST_ALTSEL0_SETUP danube_port_set_altsel0 -#else - #define LED_ST_ALTSEL0_SETUP danube_port_clear_altsel0 -#endif -#if LED_ST_ALTSEL1 - #define LED_ST_ALTSEL1_SETUP danube_port_set_altsel1 -#else - #define LED_ST_ALTSEL1_SETUP danube_port_clear_altsel1 -#endif -#if LED_ST_OPENDRAIN - #define LED_ST_OPENDRAIN_SETUP danube_port_set_open_drain -#else - #define LED_ST_OPENDRAIN_SETUP danube_port_clear_open_drain -#endif - -#if LED_ADSL0_DIR - #define LED_ADSL0_DIR_SETUP danube_port_set_dir_out -#else - #define LED_ADSL0_DIR_SETUP danube_port_clear_dir_out -#endif -#if LED_ADSL0_ALTSEL0 - #define LED_ADSL0_ALTSEL0_SETUP danube_port_set_altsel0 -#else - #define LED_ADSL0_ALTSEL0_SETUP danube_port_clear_altsel0 -#endif -#if LED_ADSL0_ALTSEL1 - #define LED_ADSL0_ALTSEL1_SETUP danube_port_set_altsel1 -#else - #define LED_ADSL0_ALTSEL1_SETUP danube_port_clear_altsel1 -#endif -#if LED_ADSL0_OPENDRAIN - #define LED_ADSL0_OPENDRAIN_SETUP danube_port_set_open_drain -#else - #define LED_ADSL0_OPENDRAIN_SETUP danube_port_clear_open_drain -#endif - -#if LED_ADSL1_DIR - #define LED_ADSL1_DIR_SETUP danube_port_set_dir_out -#else - #define LED_ADSL1_DIR_SETUP danube_port_clear_dir_out -#endif -#if LED_ADSL1_ALTSEL0 - #define LED_ADSL1_ALTSEL0_SETUP danube_port_set_altsel0 -#else - #define LED_ADSL1_ALTSEL0_SETUP danube_port_clear_altsel0 -#endif -#if LED_ADSL1_ALTSEL1 - #define LED_ADSL1_ALTSEL1_SETUP danube_port_set_altsel1 -#else - #define LED_ADSL1_ALTSEL1_SETUP danube_port_clear_altsel1 -#endif -#if LED_ADSL1_OPENDRAIN - #define LED_ADSL1_OPENDRAIN_SETUP danube_port_set_open_drain -#else - #define LED_ADSL1_OPENDRAIN_SETUP danube_port_clear_open_drain -#endif - -#define SET_BITS(x, msb, lsb, value) (((x) & ~(((1 << ((msb) + 1)) - 1) ^ ((1 << (lsb)) - 1))) | (((value) & ((1 << (1 + (msb) - (lsb))) - 1)) << (lsb))) +#define DANUBE_LED_GPIO_PORT 0 static int danube_led_major; -static int +void +danube_led_set (unsigned int led) +{ + led &= 0xffffff; + writel(readl(DANUBE_LED_CPU0) | led, DANUBE_LED_CPU0); +} +EXPORT_SYMBOL(danube_led_set); + +void +danube_led_clear (unsigned int led) +{ + led = ~(led & 0xffffff); + writel(readl(DANUBE_LED_CPU0) & led, DANUBE_LED_CPU0); +} +EXPORT_SYMBOL(danube_led_clear); + +void +danube_led_blink_set (unsigned int led) +{ + led &= 0xffffff; + writel(readl(DANUBE_LED_CON0) | led, DANUBE_LED_CON0); +} +EXPORT_SYMBOL(danube_led_blink_set); + +void +danube_led_blink_clear (unsigned int led) +{ + led = ~(led & 0xffffff); + writel(readl(DANUBE_LED_CON0) & led, DANUBE_LED_CON0); +} +EXPORT_SYMBOL(danube_led_blink_clear); + +void danube_led_setup_gpio (void) { - /* - * Set LED_ST - * I don't check the return value, because I'm sure the value is valid - * and the pins are reserved already. - */ - LED_ST_ALTSEL0_SETUP(LED_ST_PORT, LED_ST_PIN); - LED_ST_ALTSEL1_SETUP(LED_ST_PORT, LED_ST_PIN); - LED_ST_DIR_SETUP(LED_ST_PORT, LED_ST_PIN); - LED_ST_OPENDRAIN_SETUP(LED_ST_PORT, LED_ST_PIN); - - /* - * Set LED_D - */ - LED_D_ALTSEL0_SETUP(LED_D_PORT, LED_D_PIN); - LED_D_ALTSEL1_SETUP(LED_D_PORT, LED_D_PIN); - LED_D_DIR_SETUP(LED_D_PORT, LED_D_PIN); - LED_D_OPENDRAIN_SETUP(LED_D_PORT, LED_D_PIN); - - /* - * Set LED_SH - */ - LED_SH_ALTSEL0_SETUP(LED_SH_PORT, LED_SH_PIN); - LED_SH_ALTSEL1_SETUP(LED_SH_PORT, LED_SH_PIN); - LED_SH_DIR_SETUP(LED_SH_PORT, LED_SH_PIN); - LED_SH_OPENDRAIN_SETUP(LED_SH_PORT, LED_SH_PIN); + int i = 0; - return 0; + /* we need to setup pins SH,D,ST (4,5,6) */ + for (i = 4; i < 7; i++) + { + danube_port_set_altsel0(DANUBE_LED_GPIO_PORT, i); + danube_port_clear_altsel1(DANUBE_LED_GPIO_PORT, i); + danube_port_set_dir_out(DANUBE_LED_GPIO_PORT, i); + danube_port_set_open_drain(DANUBE_LED_GPIO_PORT, i); + } } static void @@ -256,8 +112,6 @@ led_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned lo switch ( cmd ) { - case LED_CONFIG: - break; } return ret; @@ -309,9 +163,10 @@ danube_led_init (void) danube_led_setup_gpio(); writel(0, DANUBE_LED_AR); - writel(0xff00, DANUBE_LED_CPU0); + writel(0, DANUBE_LED_CPU0); writel(0, DANUBE_LED_CPU1); - writel(0x8000ffff, DANUBE_LED_CON0); + writel(LED_CON0_SWU, DANUBE_LED_CON0); + writel(0, DANUBE_LED_CON1); /* setup the clock edge that the shift register is triggered on */ writel(readl(DANUBE_LED_CON0) & ~DANUBE_LED_EDGE_MASK, DANUBE_LED_CON0); @@ -326,7 +181,7 @@ danube_led_init (void) /* set led update speed */ writel(readl(DANUBE_LED_CON1) & ~DANUBE_LED_MASK, DANUBE_LED_CON1); - writel(readl(DANUBE_LED_CON1) | DANUBE_LED_8HZ, DANUBE_LED_CON1); + writel(readl(DANUBE_LED_CON1) | DANUBE_LED_SPEED, DANUBE_LED_CON1); /* adsl 0 and 1 leds are updated by the arc */ writel(readl(DANUBE_LED_CON0) | DANUBE_LED_ADSL_SRC, DANUBE_LED_CON0); |