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author | Damien George <damien.p.george@gmail.com> | 2017-09-06 13:40:51 +1000 |
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committer | Damien George <damien.p.george@gmail.com> | 2017-09-06 13:40:51 +1000 |
commit | 01dd7804b87d60b2deab16712eccb3b97351a9b7 (patch) | |
tree | 1aa21f38a872b8e62a3d4e4f74f68033c6f827e4 /esp8266/machine_uart.c | |
parent | a9862b30068fc9df1022f08019fb35aaa5085f64 (diff) | |
download | micropython-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.c | 299 |
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, -}; |