diff options
Diffstat (limited to 'firmware/drivers')
| -rw-r--r-- | firmware/drivers/tuner/lv24020lp.c | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/firmware/drivers/tuner/lv24020lp.c b/firmware/drivers/tuner/lv24020lp.c index 75796a5..a53d93b 100644 --- a/firmware/drivers/tuner/lv24020lp.c +++ b/firmware/drivers/tuner/lv24020lp.c @@ -67,24 +67,31 @@ static int fd_log = -1; /** tuner register defines **/ #if defined(SANSA_E200) || defined(SANSA_C200) -#define TUNER_GPIO_OUTPUT_EN GPIOH_OUTPUT_EN -#define TUNER_GPIO_OUTPUT_VAL GPIOH_OUTPUT_VAL -#define TUNER_GPIO_INPUT_VAL GPIOH_INPUT_VAL +#define TUNER_GPIO_INPUT_VAL GPIOH_INPUT_VAL +#define TUNER_GPIO_OUTPUT_EN_SET(mask) GPIO_SET_BITWISE(GPIOH_OUTPUT_EN, mask) +#define TUNER_GPIO_OUTPUT_EN_CLEAR(mask) GPIO_CLEAR_BITWISE(GPIOH_OUTPUT_EN, mask) +#define TUNER_GPIO_OUTPUT_VAL_SET(mask) GPIO_SET_BITWISE(GPIOH_OUTPUT_VAL, mask) +#define TUNER_GPIO_OUTPUT_VAL_CLEAR(mask) GPIO_CLEAR_BITWISE(GPIOH_OUTPUT_VAL, mask) #define FM_NRW_PIN 3 #define FM_CLOCK_PIN 4 #define FM_DATA_PIN 5 #elif defined(IAUDIO_7) -#define TUNER_GPIO_OUTPUT_EN GPIOA_DIR -#define TUNER_GPIO_OUTPUT_VAL GPIOA -#define TUNER_GPIO_INPUT_VAL GPIOA +#define TUNER_GPIO_INPUT_VAL GPIOA +#define TUNER_GPIO_OUTPUT_EN_SET(mask) (GPIOA_DIR |= (mask)) +#define TUNER_GPIO_OUTPUT_EN_CLEAR(mask) (GPIOA_DIR &= ~(mask)) +#define TUNER_GPIO_OUTPUT_VAL_SET(mask) (GPIOA |= (mask)) +#define TUNER_GPIO_OUTPUT_VAL_CLEAR(mask) (GPIOA &= ~(mask)) #define FM_CLOCK_PIN 5 #define FM_DATA_PIN 6 #define FM_NRW_PIN 7 + #elif defined(COWON_D2) -#define TUNER_GPIO_OUTPUT_EN GPIOC_DIR -#define TUNER_GPIO_OUTPUT_VAL GPIOC -#define TUNER_GPIO_INPUT_VAL GPIOC +#define TUNER_GPIO_INPUT_VAL GPIOC +#define TUNER_GPIO_OUTPUT_EN_SET(mask) (GPIOC_DIR |= (mask)) +#define TUNER_GPIO_OUTPUT_EN_CLEAR(mask) (GPIOC_DIR &= ~(mask)) +#define TUNER_GPIO_OUTPUT_VAL_SET(mask) (GPIOC |= (mask)) +#define TUNER_GPIO_OUTPUT_VAL_CLEAR(mask) (GPIOC &= ~(mask)) #define FM_NRW_PIN 31 #define FM_CLOCK_PIN 29 #define FM_DATA_PIN 30 @@ -291,16 +298,17 @@ static void lv24020lp_send_byte(unsigned int byte) for (i = 0; i < 8; i++) { - TUNER_GPIO_OUTPUT_VAL &= ~(1 << FM_CLOCK_PIN); + TUNER_GPIO_OUTPUT_VAL_CLEAR(1 << FM_CLOCK_PIN); + if (byte & 1) - TUNER_GPIO_OUTPUT_VAL |= (1 << FM_DATA_PIN); + TUNER_GPIO_OUTPUT_VAL_SET(1 << FM_DATA_PIN); else - TUNER_GPIO_OUTPUT_VAL &= ~(1 << FM_DATA_PIN); + TUNER_GPIO_OUTPUT_VAL_CLEAR(1 << FM_DATA_PIN); udelay(FM_CLK_DELAY); - TUNER_GPIO_OUTPUT_VAL |= (1 << FM_CLOCK_PIN); + TUNER_GPIO_OUTPUT_VAL_SET(1 << FM_CLOCK_PIN); udelay(FM_CLK_DELAY); byte >>= 1; @@ -311,8 +319,8 @@ static void lv24020lp_send_byte(unsigned int byte) static void lv24020lp_end_write(void) { /* switch back to read mode */ - TUNER_GPIO_OUTPUT_EN &= ~(1 << FM_DATA_PIN); - TUNER_GPIO_OUTPUT_VAL &= ~(1 << FM_NRW_PIN); + TUNER_GPIO_OUTPUT_EN_CLEAR(1 << FM_DATA_PIN); + TUNER_GPIO_OUTPUT_VAL_CLEAR(1 << FM_NRW_PIN); udelay(FM_CLK_DELAY); } @@ -326,8 +334,8 @@ static unsigned int lv24020lp_begin_write(unsigned int address) for (;;) { /* Prepare 3-wire bus pins for write cycle */ - TUNER_GPIO_OUTPUT_VAL |= (1 << FM_NRW_PIN); - TUNER_GPIO_OUTPUT_EN |= (1 << FM_DATA_PIN); + TUNER_GPIO_OUTPUT_VAL_SET(1 << FM_NRW_PIN); + TUNER_GPIO_OUTPUT_EN_SET(1 << FM_DATA_PIN); udelay(FM_CLK_DELAY); /* current block == register block? */ @@ -418,13 +426,13 @@ static unsigned int lv24020lp_read(unsigned int address) toread = 0; for (i = 0; i < 8; i++) { - TUNER_GPIO_OUTPUT_VAL &= ~(1 << FM_CLOCK_PIN); + TUNER_GPIO_OUTPUT_VAL_CLEAR(1 << FM_CLOCK_PIN); udelay(FM_CLK_DELAY); if (TUNER_GPIO_INPUT_VAL & (1 << FM_DATA_PIN)) toread |= (1 << i); - TUNER_GPIO_OUTPUT_VAL |= (1 << FM_CLOCK_PIN); + TUNER_GPIO_OUTPUT_VAL_SET(1 << FM_CLOCK_PIN); udelay(FM_CLK_DELAY); } |