src/main/pg/serial_uart.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <stdint.h>
  22 #include <stdbool.h>
  23
  24 #include "platform.h"
  25
  26 #ifdef USE_UART
  27
  28 #include "common/utils.h"
  29
  30 #include "pg/pg.h"
  31 #include "pg/pg_ids.h"
  32 #include "pg/serial_uart.h"
  33
  34 #include "drivers/io_types.h"
  35 #include "drivers/serial.h"
  36 #include "drivers/serial_uart.h"
  37 #include "drivers/dma_reqmap.h"
  38
  39 // TODO(hertz@): UARTDEV_CONFIG_MAX is measured to be exactly 8, which cannot accomodate even all the UARTs below
  40 PG_REGISTER_ARRAY_WITH_RESET_FN(serialUartConfig_t, UARTDEV_CONFIG_MAX, serialUartConfig, PG_SERIAL_UART_CONFIG, 0);
  41
  42 typedef struct uartDmaopt_s {
  43     serialPortIdentifier_e identifier;
  44     int8_t txDmaopt;
  45     int8_t rxDmaopt;
  46 } uartDmaopt_t;
  47
  48 static const uartDmaopt_t uartDmaopt[] = {
  49 #ifdef USE_UART0
  50     { SERIAL_PORT_UART0, UART0_TX_DMA_OPT, UART0_RX_DMA_OPT },
  51 #endif
  52 #ifdef USE_UART1
  53     { SERIAL_PORT_USART1, UART1_TX_DMA_OPT, UART1_RX_DMA_OPT },
  54 #endif
  55 #ifdef USE_UART2
  56     { SERIAL_PORT_USART2, UART2_TX_DMA_OPT, UART2_RX_DMA_OPT },
  57 #endif
  58 #ifdef USE_UART3
  59     { SERIAL_PORT_USART3, UART3_TX_DMA_OPT, UART3_RX_DMA_OPT },
  60 #endif
  61 #ifdef USE_UART4
  62     { SERIAL_PORT_UART4, UART4_TX_DMA_OPT, UART4_RX_DMA_OPT },
  63 #endif
  64 #ifdef USE_UART5
  65     { SERIAL_PORT_UART5, UART5_TX_DMA_OPT, UART5_RX_DMA_OPT },
  66 #endif
  67 #ifdef USE_USART6
  68     { SERIAL_PORT_UART6, UART6_TX_DMA_OPT, UART6_RX_DMA_OPT },
  69 #endif
  70 #ifdef USE_USART7
  71     { SERIAL_PORT_UART7, UART7_TX_DMA_OPT, UART7_RX_DMA_OPT },
  72 #endif
  73 #ifdef USE_USART8
  74     { SERIAL_PORT_UART8, UART8_TX_DMA_OPT, UART8_RX_DMA_OPT },
  75 #endif
  76 #ifdef USE_UART9
  77     { SERIAL_PORT_UART9, UART9_TX_DMA_OPT, UART9_RX_DMA_OPT },
  78 #endif
  79 #ifdef USE_UART10
  80     { SERIAL_PORT_UART10, UART10_TX_DMA_OPT, UART10_RX_DMA_OPT },
  81 #endif
  82 #ifdef USE_LPUART1
  83     { SERIAL_PORT_LPUART1, DMA_OPT_UNUSED, DMA_OPT_UNUSED },
  84 #endif
  85 };
  86
  87 void pgResetFn_serialUartConfig(serialUartConfig_t *config)
  88 {
  89     for (unsigned i = 0; i < UARTDEV_CONFIG_MAX; i++) {
  90         config[i].txDmaopt = DMA_OPT_UNUSED;
  91         config[i].rxDmaopt = DMA_OPT_UNUSED;
  92     }
  93
  94     for (unsigned i = 0; i < ARRAYLEN(uartDmaopt); i++) {
  95         const int resourceIndex = serialResourceIndex(uartDmaopt[i].identifier);
  96         if (resourceIndex >= 0 && resourceIndex < UARTDEV_CONFIG_MAX) {  // hadle corrupted config gracefuly
  97             config[resourceIndex].txDmaopt = uartDmaopt[i].txDmaopt;
  98             config[resourceIndex].rxDmaopt = uartDmaopt[i].rxDmaopt;
  99         }
 100     }
 101 }
 102 #endif