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authorDamien George <damien.p.george@gmail.com>2017-09-06 13:40:51 +1000
committerDamien George <damien.p.george@gmail.com>2017-09-06 13:40:51 +1000
commit01dd7804b87d60b2deab16712eccb3b97351a9b7 (patch)
tree1aa21f38a872b8e62a3d4e4f74f68033c6f827e4 /esp8266/machine_uart.c
parenta9862b30068fc9df1022f08019fb35aaa5085f64 (diff)
downloadmicropython-01dd7804b87d60b2deab16712eccb3b97351a9b7.tar.gz
micropython-01dd7804b87d60b2deab16712eccb3b97351a9b7.zip
ports: Make new ports/ sub-directory and move all ports there.
This is to keep the top-level directory clean, to make it clear what is core and what is a port, and to allow the repository to grow with new ports in a sustainable way.
Diffstat (limited to 'esp8266/machine_uart.c')
-rw-r--r--esp8266/machine_uart.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/esp8266/machine_uart.c b/esp8266/machine_uart.c
deleted file mode 100644
index e8be5e538c..0000000000
--- a/esp8266/machine_uart.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2016 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 <stdint.h>
-#include <string.h>
-
-#include "ets_sys.h"
-#include "uart.h"
-
-#include "py/runtime.h"
-#include "py/stream.h"
-#include "py/mperrno.h"
-#include "modmachine.h"
-
-// UartDev is defined and initialized in rom code.
-extern UartDevice UartDev;
-
-typedef struct _pyb_uart_obj_t {
- mp_obj_base_t base;
- uint8_t uart_id;
- uint8_t bits;
- uint8_t parity;
- uint8_t stop;
- uint32_t baudrate;
- uint16_t timeout; // timeout waiting for first char (in ms)
- uint16_t timeout_char; // timeout waiting between chars (in ms)
-} pyb_uart_obj_t;
-
-STATIC const char *_parity_name[] = {"None", "1", "0"};
-
-/******************************************************************************/
-// MicroPython bindings for UART
-
-STATIC void pyb_uart_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
- pyb_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
- mp_printf(print, "UART(%u, baudrate=%u, bits=%u, parity=%s, stop=%u, timeout=%u, timeout_char=%u)",
- self->uart_id, self->baudrate, self->bits, _parity_name[self->parity],
- self->stop, self->timeout, self->timeout_char);
-}
-
-STATIC void pyb_uart_init_helper(pyb_uart_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
- enum { ARG_baudrate, ARG_bits, ARG_parity, ARG_stop, ARG_timeout, ARG_timeout_char };
- static const mp_arg_t allowed_args[] = {
- { MP_QSTR_baudrate, MP_ARG_INT, {.u_int = 0} },
- { MP_QSTR_bits, MP_ARG_INT, {.u_int = 0} },
- { MP_QSTR_parity, MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
- { MP_QSTR_stop, MP_ARG_INT, {.u_int = 0} },
- //{ MP_QSTR_tx, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
- //{ MP_QSTR_rx, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
- { MP_QSTR_timeout, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
- { MP_QSTR_timeout_char, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
- };
- mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
- mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
-
- // set baudrate
- if (args[ARG_baudrate].u_int > 0) {
- self->baudrate = args[ARG_baudrate].u_int;
- UartDev.baut_rate = self->baudrate; // Sic!
- }
-
- // set data bits
- switch (args[ARG_bits].u_int) {
- case 0:
- break;
- case 5:
- UartDev.data_bits = UART_FIVE_BITS;
- self->bits = 5;
- break;
- case 6:
- UartDev.data_bits = UART_SIX_BITS;
- self->bits = 6;
- break;
- case 7:
- UartDev.data_bits = UART_SEVEN_BITS;
- self->bits = 7;
- break;
- case 8:
- UartDev.data_bits = UART_EIGHT_BITS;
- self->bits = 8;
- break;
- default:
- mp_raise_ValueError("invalid data bits");
- break;
- }
-
- // set parity
- if (args[ARG_parity].u_obj != MP_OBJ_NULL) {
- if (args[ARG_parity].u_obj == mp_const_none) {
- UartDev.parity = UART_NONE_BITS;
- UartDev.exist_parity = UART_STICK_PARITY_DIS;
- self->parity = 0;
- } else {
- mp_int_t parity = mp_obj_get_int(args[ARG_parity].u_obj);
- UartDev.exist_parity = UART_STICK_PARITY_EN;
- if (parity & 1) {
- UartDev.parity = UART_ODD_BITS;
- self->parity = 1;
- } else {
- UartDev.parity = UART_EVEN_BITS;
- self->parity = 2;
- }
- }
- }
-
- // set stop bits
- switch (args[ARG_stop].u_int) {
- case 0:
- break;
- case 1:
- UartDev.stop_bits = UART_ONE_STOP_BIT;
- self->stop = 1;
- break;
- case 2:
- UartDev.stop_bits = UART_TWO_STOP_BIT;
- self->stop = 2;
- break;
- default:
- mp_raise_ValueError("invalid stop bits");
- break;
- }
-
- // set timeout
- self->timeout = args[ARG_timeout].u_int;
-
- // set timeout_char
- // make sure it is at least as long as a whole character (13 bits to be safe)
- self->timeout_char = args[ARG_timeout_char].u_int;
- uint32_t min_timeout_char = 13000 / self->baudrate + 1;
- if (self->timeout_char < min_timeout_char) {
- self->timeout_char = min_timeout_char;
- }
-
- // setup
- uart_setup(self->uart_id);
-}
-
-STATIC mp_obj_t pyb_uart_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
- mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
-
- // get uart id
- mp_int_t uart_id = mp_obj_get_int(args[0]);
- if (uart_id != 0 && uart_id != 1) {
- nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "UART(%d) does not exist", uart_id));
- }
-
- // create instance
- pyb_uart_obj_t *self = m_new_obj(pyb_uart_obj_t);
- self->base.type = &pyb_uart_type;
- self->uart_id = uart_id;
- self->baudrate = 115200;
- self->bits = 8;
- self->parity = 0;
- self->stop = 1;
- self->timeout = 0;
- self->timeout_char = 0;
-
- // init the peripheral
- mp_map_t kw_args;
- mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
- pyb_uart_init_helper(self, n_args - 1, args + 1, &kw_args);
-
- return MP_OBJ_FROM_PTR(self);
-}
-
-STATIC mp_obj_t pyb_uart_init(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
- pyb_uart_init_helper(args[0], n_args - 1, args + 1, kw_args);
- return mp_const_none;
-}
-MP_DEFINE_CONST_FUN_OBJ_KW(pyb_uart_init_obj, 1, pyb_uart_init);
-
-STATIC mp_obj_t pyb_uart_any(mp_obj_t self_in) {
- pyb_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
- return MP_OBJ_NEW_SMALL_INT(uart_rx_any(self->uart_id));
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_uart_any_obj, pyb_uart_any);
-
-STATIC const mp_rom_map_elem_t pyb_uart_locals_dict_table[] = {
- { MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&pyb_uart_init_obj) },
-
- { MP_ROM_QSTR(MP_QSTR_any), MP_ROM_PTR(&pyb_uart_any_obj) },
- { MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&mp_stream_read_obj) },
- { MP_ROM_QSTR(MP_QSTR_readline), MP_ROM_PTR(&mp_stream_unbuffered_readline_obj) },
- { MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&mp_stream_readinto_obj) },
- { MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mp_stream_write_obj) },
-};
-
-STATIC MP_DEFINE_CONST_DICT(pyb_uart_locals_dict, pyb_uart_locals_dict_table);
-
-STATIC mp_uint_t pyb_uart_read(mp_obj_t self_in, void *buf_in, mp_uint_t size, int *errcode) {
- pyb_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
-
- if (self->uart_id == 1) {
- mp_raise_msg(&mp_type_OSError, "UART(1) can't read");
- }
-
- // make sure we want at least 1 char
- if (size == 0) {
- return 0;
- }
-
- // wait for first char to become available
- if (!uart_rx_wait(self->timeout * 1000)) {
- *errcode = MP_EAGAIN;
- return MP_STREAM_ERROR;
- }
-
- // read the data
- uint8_t *buf = buf_in;
- for (;;) {
- *buf++ = uart_rx_char();
- if (--size == 0 || !uart_rx_wait(self->timeout_char * 1000)) {
- // return number of bytes read
- return buf - (uint8_t*)buf_in;
- }
- }
-}
-
-STATIC mp_uint_t pyb_uart_write(mp_obj_t self_in, const void *buf_in, mp_uint_t size, int *errcode) {
- pyb_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
- const byte *buf = buf_in;
-
- /* TODO implement non-blocking
- // wait to be able to write the first character
- if (!uart_tx_wait(self, timeout)) {
- *errcode = EAGAIN;
- return MP_STREAM_ERROR;
- }
- */
-
- // write the data
- for (size_t i = 0; i < size; ++i) {
- uart_tx_one_char(self->uart_id, *buf++);
- }
-
- // return number of bytes written
- return size;
-}
-
-STATIC mp_uint_t pyb_uart_ioctl(mp_obj_t self_in, mp_uint_t request, mp_uint_t arg, int *errcode) {
- pyb_uart_obj_t *self = self_in;
- mp_uint_t ret;
- if (request == MP_STREAM_POLL) {
- mp_uint_t flags = arg;
- ret = 0;
- if ((flags & MP_STREAM_POLL_RD) && uart_rx_any(self->uart_id)) {
- ret |= MP_STREAM_POLL_RD;
- }
- if ((flags & MP_STREAM_POLL_WR) && uart_tx_any_room(self->uart_id)) {
- ret |= MP_STREAM_POLL_WR;
- }
- } else {
- *errcode = MP_EINVAL;
- ret = MP_STREAM_ERROR;
- }
- return ret;
-}
-
-STATIC const mp_stream_p_t uart_stream_p = {
- .read = pyb_uart_read,
- .write = pyb_uart_write,
- .ioctl = pyb_uart_ioctl,
- .is_text = false,
-};
-
-const mp_obj_type_t pyb_uart_type = {
- { &mp_type_type },
- .name = MP_QSTR_UART,
- .print = pyb_uart_print,
- .make_new = pyb_uart_make_new,
- .getiter = mp_identity_getiter,
- .iternext = mp_stream_unbuffered_iter,
- .protocol = &uart_stream_p,
- .locals_dict = (mp_obj_dict_t*)&pyb_uart_locals_dict,
-};