mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
7309171303
cpu, sam0_common: fix unused parameter in periph/spi cpu, kinetis_common: fix unused parameter in periph/spi cpu, cc2538: fix unused param in periph/i2c cpu, cc2538: fix unused param in periph/spi cpu, sam3: fix unused param in periph/spi cpu, stm32_common: fix unused param in periph/pm cpu, stm32f3: fix unused params in periph/i2c cpu, nrf5x_common: fix unused param in periph/gpio cpu, nrf5x_common: fix unused param in periph/spi cpu, lpc2387: fix unused params in periph/spi cpu, cc2538: fix unused params in radio/netdev cpu, cc2650: fix unused params in periph/uart cpu, lm4f120: fix unused param in periph/spi cpu, lm4f120: fix unused params in periph/timer cpu, lm4f120: fix unused params in periph/uart cpu, stm32_common: fix unused params in periph/dac cpu, stm32l0: fix unused params in periph/i2c cpu, msp430fxyz: fix unused params in periph/uart cpu, mips: fix unused params cpu, cc430: fix unused-params in periph/timer cpu, msp430fxyz: fix unused params in periph/spi drivers, cc2420: fix unused param cpu, mips32r2_common: fix unused params in periph/timer cpu, cc2538: fix unused-param in periph/i2c cpu, mips32r2_common: fix unused-param in periph/timer cpu, msp430fxyz: fix unused params in periph/timer cpu, atmega_common: fix unused params in periph/spi driver, nrfmin: fix unused params cpu, cc2538_rf: fix unused params driver, netdev_ieee802514: fix unused param cpu, mip_pic32m: fix unused params cpu, lpc2387: fix unused params in periph/pwm tests/driver_sdcard_spi: fix unused params cpu, sam3: fix unused param in periph/pwm tests/driver_dynamixel: fix unused params, and style issues cpu, cc430: fix unused param in periph/rtc cpu, atmega_common: fix unused params in periph/i2c
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
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* Copyright(C) 2016,2017 Imagination Technologies Limited and/or its
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* affiliated group companies.
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*
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*/
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/**
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* @ingroup cpu_mips_pic32_common
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* @ingroup drivers_periph_uart
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* @{
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*
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* @file
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* @brief Peripheral UART driver implementation
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*
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* @}
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*/
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#include <assert.h>
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#include "periph/uart.h"
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#include "board.h"
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#define UxMODE(U) (U.regs[0x00/4])
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#define UxMODECLR(U) (U.regs[0x04/4])
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#define UxMODESET(U) (U.regs[0x08/4])
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#define UxSTA(U) (U.regs[0x10/4])
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#define UxSTACLR(U) (U.regs[0x14/4])
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#define UxSTASET(U) (U.regs[0x18/4])
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#define UxTXREG(U) (U.regs[0x20/4])
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#define UxRXREG(U) (U.regs[0x30/4])
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#define UxBRG(U) (U.regs[0x40/4])
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#define REGS_SPACING (_UART2_BASE_ADDRESS - _UART1_BASE_ADDRESS)
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/* PERIPHERAL_CLOCK must be defined in board file */
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typedef struct PIC32_UART_tag {
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volatile uint32_t *regs;
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uint32_t clock;
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} PIC32_UART_T;
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/* pic uarts are numbered 1 to 6 */
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static PIC32_UART_T pic_uart[UART_NUMOF + 1];
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int uart_init(uart_t uart, uint32_t baudrate, uart_rx_cb_t rx_cb, void *arg)
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{
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(void)rx_cb;
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(void)arg;
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assert(uart <= UART_NUMOF && uart != 0); /*No uart 0 on pic32*/
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/* Pin Mux should be setup in board file */
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pic_uart[uart].regs =
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(volatile uint32_t *)(_UART1_BASE_ADDRESS + (uart - 1) * REGS_SPACING);
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pic_uart[uart].clock = PERIPHERAL_CLOCK;
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UxBRG(pic_uart[uart])= (pic_uart[uart].clock / (16 * baudrate)) - 1;
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UxSTA(pic_uart[uart])= 0;
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UxMODE(pic_uart[uart])= _U1MODE_ON_MASK;
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UxSTASET(pic_uart[uart])= _U1STA_URXEN_MASK;
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UxSTASET(pic_uart[uart])= _U1STA_UTXEN_MASK;
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return 0;
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}
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void uart_write(uart_t uart, const uint8_t *data, size_t len)
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{
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assert(uart <= UART_NUMOF && uart != 0);
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while(len--) {
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while(UxSTA(pic_uart[uart])& _U1STA_UTXBF_MASK) {}
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UxTXREG(pic_uart[uart]) = *data++;
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}
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}
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void uart_poweron(uart_t uart)
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{
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assert(uart <= UART_NUMOF && uart != 0);
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UxMODESET(pic_uart[uart])= _U1MODE_ON_MASK;
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}
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void uart_poweroff(uart_t uart)
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{
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assert(uart <= UART_NUMOF && uart != 0);
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UxMODECLR(pic_uart[uart])= _U1MODE_ON_MASK;
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}
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