259 lines
7.4 KiB
C
259 lines
7.4 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2014 Damien P. George
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include "ets_sys.h"
|
|
#include "etshal.h"
|
|
#include "uart.h"
|
|
#include "esp_mphal.h"
|
|
#include "user_interface.h"
|
|
#include "ets_alt_task.h"
|
|
#include "py/obj.h"
|
|
#include "py/mpstate.h"
|
|
#include "extmod/misc.h"
|
|
#include "lib/utils/pyexec.h"
|
|
|
|
extern void ets_wdt_disable(void);
|
|
extern void wdt_feed(void);
|
|
extern void ets_delay_us();
|
|
|
|
STATIC byte input_buf_array[256];
|
|
ringbuf_t input_buf = {input_buf_array, sizeof(input_buf_array)};
|
|
void mp_hal_debug_tx_strn_cooked(void *env, const char *str, uint32_t len);
|
|
const mp_print_t mp_debug_print = {NULL, mp_hal_debug_tx_strn_cooked};
|
|
|
|
void mp_hal_init(void) {
|
|
ets_wdt_disable(); // it's a pain while developing
|
|
mp_hal_rtc_init();
|
|
uart_init(UART_BIT_RATE_115200, UART_BIT_RATE_115200);
|
|
}
|
|
|
|
void mp_hal_delay_us(uint32_t us) {
|
|
uint32_t start = system_get_time();
|
|
while (system_get_time() - start < us) {
|
|
ets_event_poll();
|
|
}
|
|
}
|
|
|
|
int mp_hal_stdin_rx_chr(void) {
|
|
for (;;) {
|
|
int c = ringbuf_get(&input_buf);
|
|
if (c != -1) {
|
|
return c;
|
|
}
|
|
mp_hal_delay_us(1);
|
|
}
|
|
}
|
|
|
|
void mp_hal_stdout_tx_char(char c) {
|
|
uart_tx_one_char(UART0, c);
|
|
mp_uos_dupterm_tx_strn(&c, 1);
|
|
}
|
|
|
|
#if 0
|
|
void mp_hal_debug_str(const char *str) {
|
|
while (*str) {
|
|
uart_tx_one_char(UART0, *str++);
|
|
}
|
|
uart_flush(UART0);
|
|
}
|
|
#endif
|
|
|
|
void mp_hal_stdout_tx_str(const char *str) {
|
|
while (*str) {
|
|
mp_hal_stdout_tx_char(*str++);
|
|
}
|
|
}
|
|
|
|
void mp_hal_stdout_tx_strn(const char *str, uint32_t len) {
|
|
while (len--) {
|
|
mp_hal_stdout_tx_char(*str++);
|
|
}
|
|
}
|
|
|
|
void mp_hal_stdout_tx_strn_cooked(const char *str, uint32_t len) {
|
|
while (len--) {
|
|
if (*str == '\n') {
|
|
mp_hal_stdout_tx_char('\r');
|
|
}
|
|
mp_hal_stdout_tx_char(*str++);
|
|
}
|
|
}
|
|
|
|
void mp_hal_debug_tx_strn_cooked(void *env, const char *str, uint32_t len) {
|
|
(void)env;
|
|
while (len--) {
|
|
if (*str == '\n') {
|
|
uart_tx_one_char(UART0, '\r');
|
|
}
|
|
uart_tx_one_char(UART0, *str++);
|
|
}
|
|
}
|
|
|
|
uint32_t mp_hal_ticks_ms(void) {
|
|
return system_get_time() / 1000;
|
|
}
|
|
|
|
uint32_t mp_hal_ticks_us(void) {
|
|
return system_get_time();
|
|
}
|
|
|
|
void mp_hal_delay_ms(uint32_t delay) {
|
|
mp_hal_delay_us(delay * 1000);
|
|
}
|
|
|
|
void mp_hal_set_interrupt_char(int c) {
|
|
if (c != -1) {
|
|
mp_obj_exception_clear_traceback(MP_STATE_PORT(mp_kbd_exception));
|
|
}
|
|
extern int interrupt_char;
|
|
interrupt_char = c;
|
|
}
|
|
|
|
void ets_event_poll(void) {
|
|
ets_loop_iter();
|
|
if (MP_STATE_VM(mp_pending_exception) != NULL) {
|
|
mp_obj_t obj = MP_STATE_VM(mp_pending_exception);
|
|
MP_STATE_VM(mp_pending_exception) = MP_OBJ_NULL;
|
|
nlr_raise(obj);
|
|
}
|
|
}
|
|
|
|
void __assert_func(const char *file, int line, const char *func, const char *expr) {
|
|
printf("assert:%s:%d:%s: %s\n", file, line, func, expr);
|
|
nlr_raise(mp_obj_new_exception_msg(&mp_type_AssertionError,
|
|
"C-level assert"));
|
|
}
|
|
|
|
void mp_hal_signal_input(void) {
|
|
#if MICROPY_REPL_EVENT_DRIVEN
|
|
system_os_post(UART_TASK_ID, 0, 0);
|
|
#endif
|
|
}
|
|
|
|
static int call_dupterm_read(void) {
|
|
if (MP_STATE_PORT(term_obj) == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
nlr_buf_t nlr;
|
|
if (nlr_push(&nlr) == 0) {
|
|
mp_obj_t read_m[3];
|
|
mp_load_method(MP_STATE_PORT(term_obj), MP_QSTR_read, read_m);
|
|
read_m[2] = MP_OBJ_NEW_SMALL_INT(1);
|
|
mp_obj_t res = mp_call_method_n_kw(1, 0, read_m);
|
|
if (res == mp_const_none) {
|
|
return -2;
|
|
}
|
|
mp_buffer_info_t bufinfo;
|
|
mp_get_buffer_raise(res, &bufinfo, MP_BUFFER_READ);
|
|
if (bufinfo.len == 0) {
|
|
MP_STATE_PORT(term_obj) = NULL;
|
|
mp_printf(&mp_plat_print, "dupterm: EOF received, deactivating\n");
|
|
return -1;
|
|
}
|
|
nlr_pop();
|
|
return *(byte*)bufinfo.buf;
|
|
} else {
|
|
MP_STATE_PORT(term_obj) = NULL;
|
|
mp_printf(&mp_plat_print, "dupterm: Exception in read() method, deactivating: ");
|
|
mp_obj_print_exception(&mp_plat_print, nlr.ret_val);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
STATIC void dupterm_task_handler(os_event_t *evt) {
|
|
static byte lock;
|
|
if (lock) {
|
|
return;
|
|
}
|
|
lock = 1;
|
|
while (1) {
|
|
int c = call_dupterm_read();
|
|
if (c < 0) {
|
|
break;
|
|
}
|
|
ringbuf_put(&input_buf, c);
|
|
}
|
|
mp_hal_signal_input();
|
|
lock = 0;
|
|
}
|
|
|
|
STATIC os_event_t dupterm_evt_queue[4];
|
|
|
|
void dupterm_task_init() {
|
|
system_os_task(dupterm_task_handler, DUPTERM_TASK_ID, dupterm_evt_queue, MP_ARRAY_SIZE(dupterm_evt_queue));
|
|
}
|
|
|
|
void mp_hal_signal_dupterm_input(void) {
|
|
system_os_post(DUPTERM_TASK_ID, 0, 0);
|
|
}
|
|
|
|
void mp_hal_pin_config_od(mp_hal_pin_obj_t pin_id) {
|
|
const pyb_pin_obj_t *pin = &pyb_pin_obj[pin_id];
|
|
|
|
if (pin->phys_port == 16) {
|
|
// configure GPIO16 as input with output register holding 0
|
|
WRITE_PERI_REG(PAD_XPD_DCDC_CONF, (READ_PERI_REG(PAD_XPD_DCDC_CONF) & 0xffffffbc) | 1);
|
|
WRITE_PERI_REG(RTC_GPIO_CONF, READ_PERI_REG(RTC_GPIO_CONF) & ~1);
|
|
WRITE_PERI_REG(RTC_GPIO_ENABLE, (READ_PERI_REG(RTC_GPIO_ENABLE) & ~1)); // input
|
|
WRITE_PERI_REG(RTC_GPIO_OUT, (READ_PERI_REG(RTC_GPIO_OUT) & ~1)); // out=0
|
|
return;
|
|
}
|
|
|
|
ETS_GPIO_INTR_DISABLE();
|
|
PIN_FUNC_SELECT(pin->periph, pin->func);
|
|
GPIO_REG_WRITE(GPIO_PIN_ADDR(GPIO_ID_PIN(pin->phys_port)),
|
|
GPIO_REG_READ(GPIO_PIN_ADDR(GPIO_ID_PIN(pin->phys_port)))
|
|
| GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_ENABLE)); // open drain
|
|
GPIO_REG_WRITE(GPIO_ENABLE_ADDRESS,
|
|
GPIO_REG_READ(GPIO_ENABLE_ADDRESS) | (1 << pin->phys_port));
|
|
ETS_GPIO_INTR_ENABLE();
|
|
}
|
|
|
|
// Get pointer to esf_buf bookkeeping structure
|
|
void *ets_get_esf_buf_ctlblk(void) {
|
|
// Get literal ptr before start of esf_rx_buf_alloc func
|
|
extern void *esf_rx_buf_alloc();
|
|
return ((void**)esf_rx_buf_alloc)[-1];
|
|
}
|
|
|
|
// Get number of esf_buf free buffers of given type, as encoded by index
|
|
// idx 0 corresponds to buf types 1, 2; 1 - 4; 2 - 5; 3 - 7; 4 - 8
|
|
// Only following buf types appear to be used:
|
|
// 1 - tx buffer, 5 - management frame tx buffer; 8 - rx buffer
|
|
int ets_esf_free_bufs(int idx) {
|
|
uint32_t *p = ets_get_esf_buf_ctlblk();
|
|
uint32_t *b = (uint32_t*)p[idx];
|
|
int cnt = 0;
|
|
while (b) {
|
|
b = (uint32_t*)b[0x20 / 4];
|
|
cnt++;
|
|
}
|
|
return cnt;
|
|
}
|