diff options
Diffstat (limited to 'tinyusb/hw/bsp/fomu/fomu.c')
-rwxr-xr-x | tinyusb/hw/bsp/fomu/fomu.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/fomu/fomu.c b/tinyusb/hw/bsp/fomu/fomu.c new file mode 100755 index 00000000..25e5e961 --- /dev/null +++ b/tinyusb/hw/bsp/fomu/fomu.c @@ -0,0 +1,115 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * 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. + * + * This file is part of the TinyUSB stack. + */ + +#include <stdint.h> +#include <stdbool.h> +#include "../board.h" +#include "csr.h" +#include "irq.h" + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void fomu_error(uint32_t line) +{ + (void)line; + TU_BREAKPOINT(); +} + +volatile uint32_t system_ticks = 0; +static void timer_init(void) +{ + int t; + + timer0_en_write(0); + t = CONFIG_CLOCK_FREQUENCY / 1000; // 1000 kHz tick + timer0_reload_write(t); + timer0_load_write(t); + timer0_en_write(1); + timer0_ev_enable_write(1); + timer0_ev_pending_write(1); + irq_setmask(irq_getmask() | (1 << TIMER0_INTERRUPT)); +} + +void isr(void) +{ + unsigned int irqs; + + irqs = irq_pending() & irq_getmask(); + +#if CFG_TUSB_RHPORT0_MODE == OPT_MODE_DEVICE + if (irqs & (1 << USB_INTERRUPT)) { + tud_int_handler(0); + } +#endif + if (irqs & (1 << TIMER0_INTERRUPT)) { + system_ticks++; + timer0_ev_pending_write(1); + } +} + +void board_init(void) +{ + irq_setmask(0); + irq_setie(1); + timer_init(); + return; +} + +void board_led_write(bool state) +{ + rgb_ctrl_write(0xff); + rgb_raw_write(state); +} + +uint32_t board_button_read(void) +{ + return 0; +} + +int board_uart_read(uint8_t* buf, int len) +{ + (void) buf; + (void) len; + return 0; +} + +int board_uart_write(void const * buf, int len) +{ + int32_t offset = 0; + for (offset = 0; offset < len; offset++) + if (! (messible_status_read() & CSR_MESSIBLE_STATUS_FULL_OFFSET)) + messible_in_write(((uint8_t *)buf)[offset]); + return len; +} + +#if CFG_TUSB_OS == OPT_OS_NONE +uint32_t board_millis(void) +{ + return system_ticks; +} +#endif |