59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
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#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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GPIO_INT_COUNTER pin_counter[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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#endif
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}
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}
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