76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/*
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* This file is part of the Black Magic Debug project.
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*
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* Copyright (C) 2012 Black Sphere Technologies Ltd.
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* Written by Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/stm32/gpio.h>
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#include <libopencm3/stm32/usart.h>
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#include <libopencm3/stm32/dma.h>
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#include <libopencm3/cm3/cortex.h>
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#include <libopencm3/cm3/nvic.h>
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#include <libopencm3/cm3/scs.h>
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#include <libopencm3/usb/usbd.h>
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#include <libopencm3/usb/cdc.h>
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#include "general.h"
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#include "usbuart.h"
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#include "usb.h"
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#include "aux_serial.h"
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#ifdef DMA_STREAM0
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#define DMA_CGIF DMA_ISR_FLAGS
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#else
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#define DMA_CGIF DMA_IFCR_CGIF_BIT
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#endif
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/* RX Fifo buffer with space for copy fn overrun */
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char buf_rx[RX_FIFO_SIZE + sizeof(uint64_t)];
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/* RX Fifo out pointer, writes assumed to be atomic */
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uint8_t buf_rx_out;
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#ifdef ENABLE_DEBUG
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/* Debug Fifo buffer with space for copy fn overrun */
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char usb_dbg_buf[RX_FIFO_SIZE + sizeof(uint64_t)];
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/* Debug Fifo in pointer */
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uint8_t usb_dbg_in;
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/* Debug Fifo out pointer */
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uint8_t usb_dbg_out;
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#endif
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/*
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* Update led state atomically respecting RX anb TX states.
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*/
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void usbuart_set_led_state(uint8_t ledn, bool state)
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{
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CM_ATOMIC_CONTEXT();
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static uint8_t led_state = 0;
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if (state)
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{
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led_state |= ledn;
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gpio_set(LED_PORT_UART, LED_UART);
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}
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else
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{
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led_state &= ~ledn;
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if (!led_state)
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gpio_clear(LED_PORT_UART, LED_UART);
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}
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}
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