diff options
| author | Taniya Das <tdas@codeaurora.org> | 2019-04-04 15:28:36 +0530 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-04-23 18:01:06 +0000 |
| commit | 4b766393e2436bc678a4717043522a77cbddd2f8 (patch) | |
| tree | 2b8d3e5240810f5e9a36bc94022ec2c68d3f77b3 | |
| parent | 3ee485741bede7535377ef10516596524f8008a8 (diff) | |
qcs405: Add support of GPIO IRQ APIs
Add support of GPIO IRQ APIs.
Change-Id: I11715a93999012622a5e28455731cbe249ba8f2c
Signed-off-by: Shefali Jain <shefjain@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Nitheesh Sekar <nsekar@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32241
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
| -rw-r--r-- | src/soc/qualcomm/qcs405/gpio.c | 25 | ||||
| -rw-r--r-- | src/soc/qualcomm/qcs405/include/soc/gpio.h | 31 |
2 files changed, 56 insertions, 0 deletions
diff --git a/src/soc/qualcomm/qcs405/gpio.c b/src/soc/qualcomm/qcs405/gpio.c index 18aacf4ce4..7b2238d77f 100644 --- a/src/soc/qualcomm/qcs405/gpio.c +++ b/src/soc/qualcomm/qcs405/gpio.c @@ -71,3 +71,28 @@ void gpio_output(gpio_t gpio, int value) gpio_configure(gpio, GPIO_FUNC_GPIO, GPIO_NO_PULL, GPIO_2MA, GPIO_ENABLE); } + +void gpio_input_irq(gpio_t gpio, enum gpio_irq_type type, uint32_t pull) +{ + struct tlmm_gpio *regs = (void *)(uintptr_t)gpio.addr; + + gpio_configure(gpio, GPIO_FUNC_GPIO, + pull, GPIO_2MA, GPIO_DISABLE); + + clrsetbits_le32(®s->intr_cfg, GPIO_INTR_DECT_CTL_MASK << + GPIO_INTR_DECT_CTL_SHIFT, type << GPIO_INTR_DECT_CTL_SHIFT); + clrsetbits_le32(®s->intr_cfg, GPIO_INTR_RAW_STATUS_ENABLE + << GPIO_INTR_RAW_STATUS_EN_SHIFT, GPIO_INTR_RAW_STATUS_ENABLE + << GPIO_INTR_RAW_STATUS_EN_SHIFT); +} + +int gpio_irq_status(gpio_t gpio) +{ + struct tlmm_gpio *regs = (void *)(uintptr_t)gpio.addr; + + if (!(read32(®s->intr_status) & GPIO_INTR_STATUS_MASK)) + return 0; + + write32(®s->intr_status, GPIO_INTR_STATUS_DISABLE); + return 1; +} diff --git a/src/soc/qualcomm/qcs405/include/soc/gpio.h b/src/soc/qualcomm/qcs405/include/soc/gpio.h index fce435056f..232e05e672 100644 --- a/src/soc/qualcomm/qcs405/include/soc/gpio.h +++ b/src/soc/qualcomm/qcs405/include/soc/gpio.h @@ -30,6 +30,26 @@ typedef struct { #define TLMM_GPIO_IN_OUT_OFF 0x4 #define TLMM_GPIO_ID_STATUS_OFF 0x10 + +/* GPIO INTR CFG MASK */ +#define GPIO_INTR_DECT_CTL_MASK 0x3 +#define GPIO_INTR_RAW_STATUS_EN_MASK 0x1 + +/* GPIO INTR CFG SHIFT */ +#define GPIO_INTR_DECT_CTL_SHIFT 2 +#define GPIO_INTR_RAW_STATUS_EN_SHIFT 4 + +/* GPIO INTR STATUS MASK */ +#define GPIO_INTR_STATUS_MASK 0x1 + +/* GPIO INTR RAW STATUS */ +#define GPIO_INTR_RAW_STATUS_ENABLE 1 +#define GPIO_INTR_RAW_STATUS_DISABLE 0 + +/* GPIO INTR STATUS */ +#define GPIO_INTR_STATUS_ENABLE 1 +#define GPIO_INTR_STATUS_DISABLE 0 + /* GPIO TLMM: Direction */ #define GPIO_INPUT 0 #define GPIO_OUTPUT 1 @@ -304,12 +324,23 @@ enum { PIN(119, EAST, RES_1, RES_2, RES_3, RES_4, RES_5, RES_6, RES_7), }; +enum gpio_irq_type { + IRQ_TYPE_LEVEL = 0, + IRQ_TYPE_RISING_EDGE = 1, + IRQ_TYPE_FALLING_EDGE = 2, + IRQ_TYPE_DUAL_EDGE = 3, +}; + struct tlmm_gpio { uint32_t cfg; uint32_t in_out; + uint32_t intr_cfg; + uint32_t intr_status; }; void gpio_configure(gpio_t gpio, uint32_t func, uint32_t pull, uint32_t drive_str, uint32_t enable); +void gpio_input_irq(gpio_t gpio, enum gpio_irq_type type, uint32_t pull); +int gpio_irq_status(gpio_t gpio); #endif // _SOC_QUALCOMM_QCS405_GPIO_H_ |