mirror of
https://github.com/nodemcu/nodemcu-firmware.git
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49733f6f6d
As with the last commit this rolls up the follwowing, but include the various review comments on the PR. - **Documentation changes**. I've added the taks FAQ as a stub new Extension developer FAQ, and split the old FAQ into a Lua Developer FAQ and a Hardware FAQ. - **Tasking I/F**. New `app/task/Makefile`, `app/task/task.c`, `app/include/task/task.h` and `app/Makefile` as per previous commit. Cascade changes to `app/driver/uart.c`, `app/include/driver/uart.h`, `app/user/user_main.c` and `app/modules/node.c` - **GPIO Rework** to `app/modules/gpio.c` and `pin_map.[hc]`, `platform.[hc]` in `app/platform` - **Other Optimisations** Move the `platform_*_exists()` from `app/platform/common.c` to static inline declarations in `platform.h` as this generates faster, smaller code. Move lgc.a routines out of iram0.
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
#include "pin_map.h"
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#include "eagle_soc.h"
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#include "mem.h"
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#include "osapi.h"
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uint32_t pin_mux[GPIO_PIN_NUM];
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uint8_t pin_num[GPIO_PIN_NUM];
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uint8_t pin_func[GPIO_PIN_NUM];
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#ifdef GPIO_INTERRUPT_ENABLE
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uint8_t pin_num_inv[GPIO_PIN_NUM_INV];
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uint8_t pin_int_type[GPIO_PIN_NUM];
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uint8_t pin_trigger[GPIO_PIN_NUM];
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#endif
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typedef struct {
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int8 mux;
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uint8 num;
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uint8 func;
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uint8 intr_type;
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} pin_rec;
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#define DECLARE_PIN(n,p) { (PERIPHS_IO_MUX_##p##_U - PERIPHS_IO_MUX), n, FUNC_GPIO##n, GPIO_PIN_INTR_DISABLE}
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static const pin_rec pin_map[] = {
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{PAD_XPD_DCDC_CONF - PERIPHS_IO_MUX, 16, 0, GPIO_PIN_INTR_DISABLE},
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DECLARE_PIN( 5, GPIO5),
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DECLARE_PIN( 4, GPIO4),
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DECLARE_PIN( 0, GPIO0),
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DECLARE_PIN( 2, GPIO2),
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DECLARE_PIN(14, MTMS),
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DECLARE_PIN(12, MTDI),
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DECLARE_PIN(13, MTCK),
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DECLARE_PIN(15, MTDO),
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DECLARE_PIN( 3, U0RXD),
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DECLARE_PIN( 1, U0TXD),
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DECLARE_PIN( 9, SD_DATA2),
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DECLARE_PIN(10, SD_DATA3)
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};
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void get_pin_map(void) {
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/*
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* Flash copy of the pin map. This has to be copied to RAM to be accessible from the ISR.
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* Note that the mux field is a signed offset from PERIPHS_IO_MUX to allow the whole struct
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* to be stored in a single 32-bit record.
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*/
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int i;
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/* Take temporary stack copy to avoid unaligned exceptions on Flash version */
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pin_rec pin[GPIO_PIN_NUM];
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os_memcpy(pin, pin_map, sizeof(pin_map) );
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for (i=0; i<GPIO_PIN_NUM; i++) {
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pin_mux[i] = pin[i].mux + PERIPHS_IO_MUX;
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pin_func[i] = pin[i].func;
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pin_num[i] = pin[i].num;
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#ifdef GPIO_INTERRUPT_ENABLE
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pin_num_inv[pin_num[i]] = i;
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pin_int_type[i] = pin[i].intr_type;
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pin_trigger[i] = false;
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#endif
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}
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}
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