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GPIO driver: register all pintypes as generic /dev/gpioN

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Jari van Ewijk authored and Xiang Xiao committed 2021-12-09 23:55:12 -06:00
1 parent efc949bceb
commit 2e47ef32cf
9 files changed
+142 -96
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Documentation/platforms/risc-v/esp32c3/boards/esp32c3-devkit/index.rst
+5 -5
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@@ -57,15 +57,15 @@ GPIO9 as an interrupt pin.
At the nsh, we can turn the outputs on and off with the following::
nsh> gpio -o 1 /dev/gpout0
nsh> gpio -o 1 /dev/gpout1
nsh> gpio -o 1 /dev/gpio0
nsh> gpio -o 1 /dev/gpio1
nsh> gpio -o 0 /dev/gpout0
nsh> gpio -o 0 /dev/gpout1
nsh> gpio -o 0 /dev/gpio0
nsh> gpio -o 0 /dev/gpio1
We can use the interrupt pin to send a signal when the interrupt fires::
nsh> gpio -w 14 /dev/gpint2
nsh> gpio -w 14 /dev/gpio2
The pin is configured as a rising edge interrupt, so after issuing the
above command, connect it to 3.3V.
Documentation/platforms/xtensa/esp32/boards/esp32-wrover-kit/index.rst
+3 -3
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@@ -102,12 +102,12 @@ This is a test for the GPIO driver. It includes the 3 LEDs and one, arbitrary, G
For this example, GPIO22 was used.
At the nsh, we can turn LEDs on and off with the following::
nsh> gpio -o 1 /dev/gpout0
nsh> gpio -o 0 /dev/gpout1
nsh> gpio -o 1 /dev/gpio0
nsh> gpio -o 0 /dev/gpio0
We can use the interrupt pin to send a signal when the interrupt fires::
nsh> gpio -w 14 /dev/gpint0
nsh> gpio -w 14 /dev/gpio2
The pin is configured to as a rising edge interrupt, so after issuing the
above command, connect it to 3.3V.
boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_gpio.c
+7 -2
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@@ -282,6 +282,7 @@ static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
int esp32c3_gpio_init(void)
{
int pincount = 0;
int i;
#if BOARD_NGPIOOUT > 0
@@ -292,7 +293,7 @@ int esp32c3_gpio_init(void)
g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
g_gpout[i].gpio.gp_ops = &gpout_ops;
g_gpout[i].id = i;
gpio_pin_register(&g_gpout[i].gpio, i);
gpio_pin_register(&g_gpout[i].gpio, pincount);
/* Configure the pins that will be used as output */
@@ -300,6 +301,8 @@ int esp32c3_gpio_init(void)
esp32c3_configgpio(g_gpiooutputs[i], OUTPUT_FUNCTION_1 |
INPUT_FUNCTION_1);
esp32c3_gpiowrite(g_gpiooutputs[i], 0);
pincount++;
}
#endif
@@ -311,11 +314,13 @@ int esp32c3_gpio_init(void)
g_gpint[i].esp32c3gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
g_gpint[i].esp32c3gpio.gpio.gp_ops = &gpint_ops;
g_gpint[i].esp32c3gpio.id = i;
gpio_pin_register(&g_gpint[i].esp32c3gpio.gpio, i);
gpio_pin_register(&g_gpint[i].esp32c3gpio.gpio, pincount);
/* Configure the pins that will be used as interrupt input */
esp32c3_configgpio(g_gpiointinputs[i], INPUT_FUNCTION_1 | PULLDOWN);
pincount++;
}
#endif
boards/xtensa/esp32/esp32-devkitc/src/esp32_gpio.c
+10 -3
View File
@@ -326,6 +326,7 @@ static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
int esp32_gpio_init(void)
{
int pincount = 0;
int i;
#if BOARD_NGPIOOUT > 0
@@ -336,7 +337,7 @@ int esp32_gpio_init(void)
g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
g_gpout[i].gpio.gp_ops = &gpout_ops;
g_gpout[i].id = i;
gpio_pin_register(&g_gpout[i].gpio, i);
gpio_pin_register(&g_gpout[i].gpio, pincount);
/* Configure the pins that will be used as output */
@@ -344,6 +345,8 @@ int esp32_gpio_init(void)
esp32_configgpio(g_gpiooutputs[i], OUTPUT_FUNCTION_3 |
INPUT_FUNCTION_3);
esp32_gpiowrite(g_gpiooutputs[i], 0);
pincount++;
}
#endif
@@ -355,11 +358,13 @@ int esp32_gpio_init(void)
g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN;
g_gpin[i].gpio.gp_ops = &gpin_ops;
g_gpin[i].id = i;
gpio_pin_register(&g_gpin[i].gpio, i);
gpio_pin_register(&g_gpin[i].gpio, pincount);
/* Configure the pins that will be used as INPUT */
esp32_configgpio(g_gpioinputs[i], INPUT_FUNCTION_3);
pincount++;
}
#endif
@@ -371,11 +376,13 @@ int esp32_gpio_init(void)
g_gpint[i].esp32gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
g_gpint[i].esp32gpio.gpio.gp_ops = &gpint_ops;
g_gpint[i].esp32gpio.id = i;
gpio_pin_register(&g_gpint[i].esp32gpio.gpio, i);
gpio_pin_register(&g_gpint[i].esp32gpio.gpio, pincount);
/* Configure the pins that will be used as interrupt input */
esp32_configgpio(g_gpiointinputs[i], INPUT_FUNCTION_3 | PULLDOWN);
pincount++;
}
#endif
boards/xtensa/esp32/esp32-wrover-kit/src/esp32_gpio.c
+10 -3
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@@ -326,6 +326,7 @@ static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
int esp32_gpio_init(void)
{
int pincount = 0;
int i;
#if BOARD_NGPIOOUT > 0
@@ -336,7 +337,7 @@ int esp32_gpio_init(void)
g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
g_gpout[i].gpio.gp_ops = &gpout_ops;
g_gpout[i].id = i;
gpio_pin_register(&g_gpout[i].gpio, i);
gpio_pin_register(&g_gpout[i].gpio, pincount);
/* Configure the pins that will be used as output */
@@ -344,6 +345,8 @@ int esp32_gpio_init(void)
esp32_configgpio(g_gpiooutputs[i], OUTPUT_FUNCTION_3 |
INPUT_FUNCTION_3);
esp32_gpiowrite(g_gpiooutputs[i], 0);
pincount++;
}
#endif
@@ -355,11 +358,13 @@ int esp32_gpio_init(void)
g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN;
g_gpin[i].gpio.gp_ops = &gpin_ops;
g_gpin[i].id = i;
gpio_pin_register(&g_gpin[i].gpio, i);
gpio_pin_register(&g_gpin[i].gpio, pincount);
/* Configure the pins that will be used as INPUT */
esp32_configgpio(g_gpioinputs[i], INPUT_FUNCTION_3);
pincount++;
}
#endif
@@ -371,11 +376,13 @@ int esp32_gpio_init(void)
g_gpint[i].esp32gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
g_gpint[i].esp32gpio.gpio.gp_ops = &gpint_ops;
g_gpint[i].esp32gpio.id = i;
gpio_pin_register(&g_gpint[i].esp32gpio.gpio, i);
gpio_pin_register(&g_gpint[i].esp32gpio.gpio, pincount);
/* Configure the pins that will be used as interrupt input */
esp32_configgpio(g_gpiointinputs[i], INPUT_FUNCTION_3 | PULLDOWN);
pincount++;
}
#endif
boards/xtensa/esp32/ttgo_lora_esp32/src/esp32_gpio.c
+10 -3
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@@ -326,6 +326,7 @@ static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
int esp32_gpio_init(void)
{
int pincount = 0;
int i;
#if BOARD_NGPIOOUT > 0
@@ -336,7 +337,7 @@ int esp32_gpio_init(void)
g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
g_gpout[i].gpio.gp_ops = &gpout_ops;
g_gpout[i].id = i;
gpio_pin_register(&g_gpout[i].gpio, i);
gpio_pin_register(&g_gpout[i].gpio, pincount);
/* Configure the pins that will be used as output */
@@ -344,6 +345,8 @@ int esp32_gpio_init(void)
esp32_configgpio(g_gpiooutputs[i], OUTPUT_FUNCTION_3 |
INPUT_FUNCTION_3);
esp32_gpiowrite(g_gpiooutputs[i], 0);
pincount++;
}
#endif
@@ -355,11 +358,13 @@ int esp32_gpio_init(void)
g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN;
g_gpin[i].gpio.gp_ops = &gpin_ops;
g_gpin[i].id = i;
gpio_pin_register(&g_gpin[i].gpio, i);
gpio_pin_register(&g_gpin[i].gpio, pincount);
/* Configure the pins that will be used as INPUT */
esp32_configgpio(g_gpioinputs[i], INPUT_FUNCTION_3);
pincount++;
}
#endif
@@ -371,11 +376,13 @@ int esp32_gpio_init(void)
g_gpint[i].esp32gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
g_gpint[i].esp32gpio.gpio.gp_ops = &gpint_ops;
g_gpint[i].esp32gpio.id = i;
gpio_pin_register(&g_gpint[i].esp32gpio.gpio, i);
gpio_pin_register(&g_gpint[i].esp32gpio.gpio, pincount);
/* Configure the pins that will be used as interrupt input */
esp32_configgpio(g_gpiointinputs[i], INPUT_FUNCTION_3 | PULLDOWN);
pincount++;
}
#endif
boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_gpio.c
+11 -3
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@@ -404,6 +404,8 @@ static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
int esp32s2_gpio_init(void)
{
int pincount = 0;
#if BOARD_NGPIOOUT > 0
for (int i = 0; i < BOARD_NGPIOOUT; i++)
{
@@ -412,7 +414,7 @@ int esp32s2_gpio_init(void)
g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
g_gpout[i].gpio.gp_ops = &gpout_ops;
g_gpout[i].id = i;
gpio_pin_register(&g_gpout[i].gpio, i);
gpio_pin_register(&g_gpout[i].gpio, pincount);
/* Configure the pins that will be used as output */
@@ -420,6 +422,8 @@ int esp32s2_gpio_init(void)
esp32s2_configgpio(g_gpiooutputs[i], OUTPUT_FUNCTION_1 |
INPUT_FUNCTION_1);
esp32s2_gpiowrite(g_gpiooutputs[i], 0);
pincount++;
}
#endif
@@ -431,11 +435,13 @@ int esp32s2_gpio_init(void)
g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN_PULLDOWN;
g_gpin[i].gpio.gp_ops = &gpin_ops;
g_gpin[i].id = i;
gpio_pin_register(&g_gpin[i].gpio, i);
gpio_pin_register(&g_gpin[i].gpio, pincount);
/* Configure the pins that will be used as interrupt input */
esp32s2_configgpio(g_gpioinputs[i], INPUT_FUNCTION_1 | PULLDOWN);
pincount++;
}
#endif
@@ -447,11 +453,13 @@ int esp32s2_gpio_init(void)
g_gpint[i].esp32s2gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
g_gpint[i].esp32s2gpio.gpio.gp_ops = &gpint_ops;
g_gpint[i].esp32s2gpio.id = i;
gpio_pin_register(&g_gpint[i].esp32s2gpio.gpio, i);
gpio_pin_register(&g_gpint[i].esp32s2gpio.gpio, pincount);
/* Configure the pins that will be used as interrupt input */
esp32s2_configgpio(g_gpiointinputs[i], INPUT_FUNCTION_1 | PULLDOWN);
pincount++;
}
#endif
drivers/ioexpander/gpio.c
+76 -52
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File diff suppressed because it is too large. Load diff
include/nuttx/ioexpander/gpio.h
+10 -22
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@@ -107,12 +107,12 @@ typedef CODE int (*pin_interrupt_t)(FAR struct gpio_dev_s *dev, uint8_t pin);
/* Pin interface vtable definition. Instances of this vtable are read-only
* and may reside in FLASH.
*
* - go_read. Required for all all pin types.
* - go_read. Required for all pin types.
* - go_write. Required only for the GPIO_OUTPUT_PIN pin type. Unused
* for other pin types may be NULL.
* - go_attach and gp_eanble. Required only the GPIO_INTERRUPT_PIN pin
* type. Unused for other pin types may be NULL.
* - go_setpinytype. Required for all all pin types.
* for other pin types, may be NULL.
* - go_attach and gp_enable. Required only for the GPIO_INTERRUPT_PIN pin
* type. Unused for other pin types, may be NULL.
* - go_setpinytype. Required for all pin types.
*/
struct gpio_dev_s;
@@ -177,14 +177,8 @@ extern "C"
* Name: gpio_pin_register
*
* Description:
* Register GPIO pin device driver.
*
* - Input pin types will be registered at /dev/gpinN
* - Output pin types will be registered at /dev/gpoutN
* - Interrupt pin types will be registered at /dev/gpintN
*
* Where N is the provided minor number in the range of 0-99.
*
* Register GPIO pin device driver at /dev/gpioN, where N is the provided
* minor number.
*
****************************************************************************/
@@ -194,18 +188,12 @@ int gpio_pin_register(FAR struct gpio_dev_s *dev, int minor);
* Name: gpio_pin_unregister
*
* Description:
* Unregister GPIO pin device driver.
*
* - Input pin types will be registered at /dev/gpinN
* - Output pin types will be registered at /dev/gpoutN
* - Interrupt pin types will be registered at /dev/gpintN
*
* Where N is the provided minor number in the range of 0-99.
*
* Unregister GPIO pin device driver at /dev/gpioN, where N is the provided
* minor number.
*
****************************************************************************/
void gpio_pin_unregister(FAR struct gpio_dev_s *dev, int minor);
int gpio_pin_unregister(FAR struct gpio_dev_s *dev, int minor);
/****************************************************************************
* Name: gpio_lower_half