static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int gpio;
enum gpio_cmd sub_cmd;
ulong value;
const char *str_cmd, *str_gpio;
#ifdef gpio_status
if (argc == 2 && !strcmp(argv[1], "status")) {
gpio_status();
return 0;
}
#endif
if (argc != 3)
show_usage:
return CMD_RET_USAGE;
str_cmd = argv[1];
str_gpio = argv[2];
/* parse the behavior */
switch (*str_cmd) {
case 'i': sub_cmd = CMD_GPIO_INPUT; break;
case 's': sub_cmd = CMD_GPIO_SET; break;
case 'c': sub_cmd = CMD_GPIO_CLEAR; break;
case 't': sub_cmd = CMD_GPIO_TOGGLE; break;
default: goto show_usage;
}
/* turn the gpio name into a gpio number */
gpio = name_to_gpio(str_gpio);
if (gpio < 0)
goto show_usage;
/* grab the pin before we tweak it */
if (gpio_request(gpio, "cmd_gpio")) {
printf("gpio: requesting pin %u failed\n", gpio);
return -1;
}
/* finally, let's do it: set direction and exec command */
if (sub_cmd == CMD_GPIO_INPUT) {
gpio_direction_input(gpio);
value = gpio_get_value(gpio);
} else {
switch (sub_cmd) {
case CMD_GPIO_SET: value = 1; break;
case CMD_GPIO_CLEAR: value = 0; break;
case CMD_GPIO_TOGGLE: value = !gpio_get_value(gpio); break;
default: goto show_usage;
}
gpio_direction_output(gpio, value);
}
printf("gpio: pin %s (gpio %i) value is %lu\n",
str_gpio, gpio, value);
gpio_free(gpio);
return value;
}
/* Return 1 if vol_up pressed */
static int target_volume_up()
{
uint8_t status = 0;
gpio_tlmm_config(TLMM_VOL_UP_BTN_GPIO, 0, GPIO_INPUT, GPIO_PULL_UP, GPIO_2MA, GPIO_ENABLE);
thread_sleep(10);
/* Get status of GPIO */
status = gpio_status(TLMM_VOL_UP_BTN_GPIO);
/* Active low signal. */
return !status;
}
/* Return 1 if vol_up pressed */
int target_volume_up(void)
{
uint8_t status = 0;
gpio_tlmm_config(TLMM_VOL_UP_BTN_GPIO, 0, GPIO_INPUT, GPIO_PULL_UP, GPIO_2MA, GPIO_ENABLE);
/* Wait for the configuration to complete.*/
thread_sleep(1);
/* Get status of GPIO */
status = gpio_status(TLMM_VOL_UP_BTN_GPIO);
/* Active low signal. */
return !status;
}
/* Return 1 if vol_up pressed */
int target_volume_up()
{
uint8_t status = 0;
gpio_tlmm_config(TLMM_VOL_UP_BTN_GPIO, 0, GPIO_INPUT, GPIO_PULL_UP, GPIO_2MA, GPIO_ENABLE);
/* Wait for the gpio config to take effect - debounce time */
thread_sleep(10);
/* Get status of GPIO */
status = gpio_status(TLMM_VOL_UP_BTN_GPIO);
/* Active low signal. */
return !status;
}
/* Return 1 if vol_up pressed */
int target_volume_up()
{
uint8_t status = 0;
uint32_t vol_up_gpio;
if(platform_is_msm8956())
vol_up_gpio = TLMM_VOL_UP_BTN_GPIO_8956;
else
vol_up_gpio = TLMM_VOL_UP_BTN_GPIO;
gpio_tlmm_config(vol_up_gpio, 0, GPIO_INPUT, GPIO_PULL_UP, GPIO_2MA, GPIO_ENABLE);
/* Wait for the gpio config to take effect - debounce time */
thread_sleep(10);
/* Get status of GPIO */
status = gpio_status(vol_up_gpio);
/* Active low signal. */
return !status;
}
static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned int gpio;
enum gpio_cmd sub_cmd;
ulong value;
const char *str_cmd, *str_gpio = NULL;
int ret;
#ifdef CONFIG_DM_GPIO
bool all = false;
#endif
if (argc < 2)
show_usage:
return CMD_RET_USAGE;
str_cmd = argv[1];
argc -= 2;
argv += 2;
#ifdef CONFIG_DM_GPIO
if (argc > 0 && !strcmp(*argv, "-a")) {
all = true;
argc--;
argv++;
}
#endif
if (argc > 0)
str_gpio = *argv;
if (!strcmp(str_cmd, "status")) {
/* Support deprecated gpio_status() */
#ifdef gpio_status
gpio_status();
return 0;
#elif defined(CONFIG_DM_GPIO)
return cmd_process_error(cmdtp, do_gpio_status(all, str_gpio));
#else
goto show_usage;
#endif
}
if (!str_gpio)
goto show_usage;
/* parse the behavior */
switch (*str_cmd) {
case 'i': sub_cmd = GPIO_INPUT; break;
case 's': sub_cmd = GPIO_SET; break;
case 'c': sub_cmd = GPIO_CLEAR; break;
case 't': sub_cmd = GPIO_TOGGLE; break;
default: goto show_usage;
}
#if defined(CONFIG_DM_GPIO)
/*
* TODO([email protected]): For now we must fit into the existing GPIO
* framework, so we look up the name here and convert it to a GPIO number.
* Once all GPIO drivers are converted to driver model, we can change the
* code here to use the GPIO uclass interface instead of the numbered
* GPIO compatibility layer.
*/
ret = gpio_lookup_name(str_gpio, NULL, NULL, &gpio);
if (ret)
return cmd_process_error(cmdtp, ret);
#else
/* turn the gpio name into a gpio number */
gpio = name_to_gpio(str_gpio);
if (gpio < 0)
goto show_usage;
#endif
/* grab the pin before we tweak it */
ret = gpio_request(gpio, "cmd_gpio");
if (ret && ret != -EBUSY) {
printf("gpio: requesting pin %u failed\n", gpio);
return -1;
}
/* finally, let's do it: set direction and exec command */
if (sub_cmd == GPIO_INPUT) {
gpio_direction_input(gpio);
value = gpio_get_value(gpio);
} else {
switch (sub_cmd) {
case GPIO_SET: value = 1; break;
case GPIO_CLEAR: value = 0; break;
case GPIO_TOGGLE: value = !gpio_get_value(gpio); break;
default: goto show_usage;
}
gpio_direction_output(gpio, value);
}
printf("gpio: pin %s (gpio %i) value is %lu\n",
str_gpio, gpio, value);
if (ret != -EBUSY)
gpio_free(gpio);
return value;
}