mbed library sources. Supersedes mbed-src.
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targets/hal/TARGET_RENESAS/TARGET_VK_RZ_A1H/serial_api.c@119:3921aeca8633, 2016-04-29 (annotated)
- Committer:
- mbed_official
- Date:
- Fri Apr 29 01:15:11 2016 +0100
- Revision:
- 119:3921aeca8633
Synchronized with git revision fe9720f24b1adc71ab6962506ec51290f6afd270
Full URL: https://github.com/mbedmicro/mbed/commit/fe9720f24b1adc71ab6962506ec51290f6afd270/
[Renesas RZ/A1H] Enable asynchronous communications
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 119:3921aeca8633 | 1 | /* mbed Microcontroller Library |
mbed_official | 119:3921aeca8633 | 2 | * Copyright (c) 2006-2015 ARM Limited |
mbed_official | 119:3921aeca8633 | 3 | * |
mbed_official | 119:3921aeca8633 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 119:3921aeca8633 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 119:3921aeca8633 | 6 | * You may obtain a copy of the License at |
mbed_official | 119:3921aeca8633 | 7 | * |
mbed_official | 119:3921aeca8633 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 119:3921aeca8633 | 9 | * |
mbed_official | 119:3921aeca8633 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 119:3921aeca8633 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 119:3921aeca8633 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 119:3921aeca8633 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 119:3921aeca8633 | 14 | * limitations under the License. |
mbed_official | 119:3921aeca8633 | 15 | */ |
mbed_official | 119:3921aeca8633 | 16 | // math.h required for floating point operations for baud rate calculation |
mbed_official | 119:3921aeca8633 | 17 | #include "mbed_assert.h" |
mbed_official | 119:3921aeca8633 | 18 | #include <math.h> |
mbed_official | 119:3921aeca8633 | 19 | #include <string.h> |
mbed_official | 119:3921aeca8633 | 20 | #include <stdlib.h> |
mbed_official | 119:3921aeca8633 | 21 | |
mbed_official | 119:3921aeca8633 | 22 | #include "serial_api.h" |
mbed_official | 119:3921aeca8633 | 23 | #include "cmsis.h" |
mbed_official | 119:3921aeca8633 | 24 | #include "pinmap.h" |
mbed_official | 119:3921aeca8633 | 25 | #include "gpio_api.h" |
mbed_official | 119:3921aeca8633 | 26 | |
mbed_official | 119:3921aeca8633 | 27 | #include "scif_iodefine.h" |
mbed_official | 119:3921aeca8633 | 28 | #include "cpg_iodefine.h" |
mbed_official | 119:3921aeca8633 | 29 | |
mbed_official | 119:3921aeca8633 | 30 | /****************************************************************************** |
mbed_official | 119:3921aeca8633 | 31 | * INITIALIZATION |
mbed_official | 119:3921aeca8633 | 32 | ******************************************************************************/ |
mbed_official | 119:3921aeca8633 | 33 | #define PCLK (66666666) // Define the peripheral clock P1 frequency. |
mbed_official | 119:3921aeca8633 | 34 | |
mbed_official | 119:3921aeca8633 | 35 | #define UART_NUM 8 |
mbed_official | 119:3921aeca8633 | 36 | #define IRQ_NUM 2 |
mbed_official | 119:3921aeca8633 | 37 | |
mbed_official | 119:3921aeca8633 | 38 | static void uart0_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 39 | static void uart1_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 40 | static void uart2_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 41 | static void uart3_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 42 | static void uart4_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 43 | static void uart5_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 44 | static void uart6_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 45 | static void uart7_tx_irq(void); |
mbed_official | 119:3921aeca8633 | 46 | static void uart0_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 47 | static void uart1_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 48 | static void uart2_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 49 | static void uart3_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 50 | static void uart4_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 51 | static void uart5_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 52 | static void uart6_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 53 | static void uart7_rx_irq(void); |
mbed_official | 119:3921aeca8633 | 54 | |
mbed_official | 119:3921aeca8633 | 55 | #ifdef MAX_PERI |
mbed_official | 119:3921aeca8633 | 56 | static const PinMap PinMap_UART_TX[] = { |
mbed_official | 119:3921aeca8633 | 57 | {P2_14 , UART0, 6}, |
mbed_official | 119:3921aeca8633 | 58 | {P4_9 , UART0, 7}, |
mbed_official | 119:3921aeca8633 | 59 | {P6_9 , UART0, 5}, |
mbed_official | 119:3921aeca8633 | 60 | {P2_5 , UART1, 6}, |
mbed_official | 119:3921aeca8633 | 61 | {P4_12 , UART1, 7}, |
mbed_official | 119:3921aeca8633 | 62 | {P6_12 , UART1, 5}, |
mbed_official | 119:3921aeca8633 | 63 | {P9_3 , UART1, 4}, |
mbed_official | 119:3921aeca8633 | 64 | {P3_0 , UART2, 6}, |
mbed_official | 119:3921aeca8633 | 65 | {P3_1 , UART2, 4}, |
mbed_official | 119:3921aeca8633 | 66 | {P4_2 , UART2, 5}, |
mbed_official | 119:3921aeca8633 | 67 | {P4_14 , UART2, 7}, |
mbed_official | 119:3921aeca8633 | 68 | {P6_3 , UART2, 7}, |
mbed_official | 119:3921aeca8633 | 69 | {P8_6 , UART2, 7}, |
mbed_official | 119:3921aeca8633 | 70 | {P3_5 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 71 | {P5_3 , UART3, 5}, |
mbed_official | 119:3921aeca8633 | 72 | {P6_1 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 73 | {P8_8 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 74 | {P5_0 , UART4, 5}, |
mbed_official | 119:3921aeca8633 | 75 | {P7_1 , UART4, 4}, |
mbed_official | 119:3921aeca8633 | 76 | {P8_14 , UART4, 7}, |
mbed_official | 119:3921aeca8633 | 77 | {P6_6 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 78 | {P8_1 , UART5, 4}, |
mbed_official | 119:3921aeca8633 | 79 | {P8_13 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 80 | {P5_6 , UART6, 5}, |
mbed_official | 119:3921aeca8633 | 81 | {P6_14 , UART6, 4}, |
mbed_official | 119:3921aeca8633 | 82 | {P7_4 , UART7, 4}, |
mbed_official | 119:3921aeca8633 | 83 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 84 | }; |
mbed_official | 119:3921aeca8633 | 85 | |
mbed_official | 119:3921aeca8633 | 86 | static const PinMap PinMap_UART_RX[] = { |
mbed_official | 119:3921aeca8633 | 87 | {P2_15 , UART0, 6}, |
mbed_official | 119:3921aeca8633 | 88 | {P4_10 , UART0, 7}, |
mbed_official | 119:3921aeca8633 | 89 | {P6_10 , UART0, 5}, |
mbed_official | 119:3921aeca8633 | 90 | {P2_6 , UART1, 6}, |
mbed_official | 119:3921aeca8633 | 91 | {P4_13 , UART1, 7}, |
mbed_official | 119:3921aeca8633 | 92 | {P6_13 , UART1, 5}, |
mbed_official | 119:3921aeca8633 | 93 | {P9_4 , UART1, 4}, |
mbed_official | 119:3921aeca8633 | 94 | {P3_2 , UART2, 4}, |
mbed_official | 119:3921aeca8633 | 95 | {P4_3 , UART2, 5}, |
mbed_official | 119:3921aeca8633 | 96 | {P4_15 , UART2, 7}, |
mbed_official | 119:3921aeca8633 | 97 | {P6_2 , UART2, 7}, |
mbed_official | 119:3921aeca8633 | 98 | {P8_4 , UART2, 7}, |
mbed_official | 119:3921aeca8633 | 99 | {P3_6 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 100 | {P5_4 , UART3, 5}, |
mbed_official | 119:3921aeca8633 | 101 | {P6_0 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 102 | {P8_9 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 103 | {P5_1 , UART4, 5}, |
mbed_official | 119:3921aeca8633 | 104 | {P7_2 , UART4, 4}, |
mbed_official | 119:3921aeca8633 | 105 | {P8_15 , UART4, 7}, |
mbed_official | 119:3921aeca8633 | 106 | {P6_7 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 107 | {P8_2 , UART5, 4}, |
mbed_official | 119:3921aeca8633 | 108 | {P8_11 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 109 | {P5_7 , UART6, 5}, |
mbed_official | 119:3921aeca8633 | 110 | {P6_15 , UART6, 4}, |
mbed_official | 119:3921aeca8633 | 111 | {P7_5 , UART7, 4}, |
mbed_official | 119:3921aeca8633 | 112 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 113 | }; |
mbed_official | 119:3921aeca8633 | 114 | |
mbed_official | 119:3921aeca8633 | 115 | static const PinMap PinMap_UART_CTS[] = { |
mbed_official | 119:3921aeca8633 | 116 | {P2_3 , UART1, 6}, |
mbed_official | 119:3921aeca8633 | 117 | {P9_5 , UART1, 4}, |
mbed_official | 119:3921aeca8633 | 118 | {P6_3 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 119 | {P7_15 , UART5, 4}, |
mbed_official | 119:3921aeca8633 | 120 | {P7_6 , UART7, 4}, |
mbed_official | 119:3921aeca8633 | 121 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 122 | }; |
mbed_official | 119:3921aeca8633 | 123 | static const PinMap PinMap_UART_RTS[] = { |
mbed_official | 119:3921aeca8633 | 124 | {P2_7 , UART1, 6}, |
mbed_official | 119:3921aeca8633 | 125 | {P9_6 , UART1, 4}, |
mbed_official | 119:3921aeca8633 | 126 | {P6_4 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 127 | {P8_3 , UART5, 4}, |
mbed_official | 119:3921aeca8633 | 128 | {P7_7 , UART7, 4}, |
mbed_official | 119:3921aeca8633 | 129 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 130 | }; |
mbed_official | 119:3921aeca8633 | 131 | #else |
mbed_official | 119:3921aeca8633 | 132 | static const PinMap PinMap_UART_TX[] = { |
mbed_official | 119:3921aeca8633 | 133 | {P3_0 , UART2, 6}, |
mbed_official | 119:3921aeca8633 | 134 | {P3_1 , UART2, 4}, |
mbed_official | 119:3921aeca8633 | 135 | {P4_2 , UART2, 5}, |
mbed_official | 119:3921aeca8633 | 136 | {P5_3 , UART3, 5}, |
mbed_official | 119:3921aeca8633 | 137 | {P8_8 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 138 | {P5_0 , UART4, 5}, |
mbed_official | 119:3921aeca8633 | 139 | {P8_14 , UART4, 7}, |
mbed_official | 119:3921aeca8633 | 140 | {P8_13 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 141 | {P5_6 , UART6, 5}, |
mbed_official | 119:3921aeca8633 | 142 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 143 | }; |
mbed_official | 119:3921aeca8633 | 144 | |
mbed_official | 119:3921aeca8633 | 145 | static const PinMap PinMap_UART_RX[] = { |
mbed_official | 119:3921aeca8633 | 146 | {P3_2 , UART2, 4}, |
mbed_official | 119:3921aeca8633 | 147 | {P4_3 , UART2, 5}, |
mbed_official | 119:3921aeca8633 | 148 | {P5_4 , UART3, 5}, |
mbed_official | 119:3921aeca8633 | 149 | {P8_9 , UART3, 7}, |
mbed_official | 119:3921aeca8633 | 150 | {P5_1 , UART4, 5}, |
mbed_official | 119:3921aeca8633 | 151 | {P8_15 , UART4, 7}, |
mbed_official | 119:3921aeca8633 | 152 | {P8_11 , UART5, 5}, |
mbed_official | 119:3921aeca8633 | 153 | {P5_7 , UART6, 5}, |
mbed_official | 119:3921aeca8633 | 154 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 155 | }; |
mbed_official | 119:3921aeca8633 | 156 | |
mbed_official | 119:3921aeca8633 | 157 | static const PinMap PinMap_UART_CTS[] = { |
mbed_official | 119:3921aeca8633 | 158 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 159 | }; |
mbed_official | 119:3921aeca8633 | 160 | static const PinMap PinMap_UART_RTS[] = { |
mbed_official | 119:3921aeca8633 | 161 | {NC , NC , 0} |
mbed_official | 119:3921aeca8633 | 162 | }; |
mbed_official | 119:3921aeca8633 | 163 | #endif |
mbed_official | 119:3921aeca8633 | 164 | |
mbed_official | 119:3921aeca8633 | 165 | static const struct st_scif *SCIF[] = SCIF_ADDRESS_LIST; |
mbed_official | 119:3921aeca8633 | 166 | static uart_irq_handler irq_handler; |
mbed_official | 119:3921aeca8633 | 167 | |
mbed_official | 119:3921aeca8633 | 168 | int stdio_uart_inited = 0; |
mbed_official | 119:3921aeca8633 | 169 | serial_t stdio_uart; |
mbed_official | 119:3921aeca8633 | 170 | |
mbed_official | 119:3921aeca8633 | 171 | struct serial_global_data_s { |
mbed_official | 119:3921aeca8633 | 172 | uint32_t serial_irq_id; |
mbed_official | 119:3921aeca8633 | 173 | gpio_t sw_rts, sw_cts; |
mbed_official | 119:3921aeca8633 | 174 | uint8_t count, rx_irq_set_flow, rx_irq_set_api; |
mbed_official | 119:3921aeca8633 | 175 | }; |
mbed_official | 119:3921aeca8633 | 176 | |
mbed_official | 119:3921aeca8633 | 177 | static struct serial_global_data_s uart_data[UART_NUM]; |
mbed_official | 119:3921aeca8633 | 178 | |
mbed_official | 119:3921aeca8633 | 179 | static const IRQn_Type irq_set_tbl[UART_NUM][IRQ_NUM] = { |
mbed_official | 119:3921aeca8633 | 180 | {SCIFRXI0_IRQn, SCIFTXI0_IRQn}, |
mbed_official | 119:3921aeca8633 | 181 | {SCIFRXI1_IRQn, SCIFTXI1_IRQn}, |
mbed_official | 119:3921aeca8633 | 182 | {SCIFRXI2_IRQn, SCIFTXI2_IRQn}, |
mbed_official | 119:3921aeca8633 | 183 | {SCIFRXI3_IRQn, SCIFTXI3_IRQn}, |
mbed_official | 119:3921aeca8633 | 184 | {SCIFRXI4_IRQn, SCIFTXI4_IRQn}, |
mbed_official | 119:3921aeca8633 | 185 | {SCIFRXI5_IRQn, SCIFTXI5_IRQn}, |
mbed_official | 119:3921aeca8633 | 186 | {SCIFRXI6_IRQn, SCIFTXI6_IRQn}, |
mbed_official | 119:3921aeca8633 | 187 | {SCIFRXI7_IRQn, SCIFTXI7_IRQn} |
mbed_official | 119:3921aeca8633 | 188 | }; |
mbed_official | 119:3921aeca8633 | 189 | |
mbed_official | 119:3921aeca8633 | 190 | static const IRQHandler hander_set_tbl[UART_NUM][IRQ_NUM] = { |
mbed_official | 119:3921aeca8633 | 191 | {uart0_rx_irq, uart0_tx_irq}, |
mbed_official | 119:3921aeca8633 | 192 | {uart1_rx_irq, uart1_tx_irq}, |
mbed_official | 119:3921aeca8633 | 193 | {uart2_rx_irq, uart2_tx_irq}, |
mbed_official | 119:3921aeca8633 | 194 | {uart3_rx_irq, uart3_tx_irq}, |
mbed_official | 119:3921aeca8633 | 195 | {uart4_rx_irq, uart4_tx_irq}, |
mbed_official | 119:3921aeca8633 | 196 | {uart5_rx_irq, uart5_tx_irq}, |
mbed_official | 119:3921aeca8633 | 197 | {uart6_rx_irq, uart6_tx_irq}, |
mbed_official | 119:3921aeca8633 | 198 | {uart7_rx_irq, uart7_tx_irq} |
mbed_official | 119:3921aeca8633 | 199 | }; |
mbed_official | 119:3921aeca8633 | 200 | |
mbed_official | 119:3921aeca8633 | 201 | static __IO uint16_t *SCSCR_MATCH[] = { |
mbed_official | 119:3921aeca8633 | 202 | &SCSCR_0, |
mbed_official | 119:3921aeca8633 | 203 | &SCSCR_1, |
mbed_official | 119:3921aeca8633 | 204 | &SCSCR_2, |
mbed_official | 119:3921aeca8633 | 205 | &SCSCR_3, |
mbed_official | 119:3921aeca8633 | 206 | &SCSCR_4, |
mbed_official | 119:3921aeca8633 | 207 | &SCSCR_5, |
mbed_official | 119:3921aeca8633 | 208 | &SCSCR_6, |
mbed_official | 119:3921aeca8633 | 209 | &SCSCR_7, |
mbed_official | 119:3921aeca8633 | 210 | }; |
mbed_official | 119:3921aeca8633 | 211 | |
mbed_official | 119:3921aeca8633 | 212 | static __IO uint16_t *SCFSR_MATCH[] = { |
mbed_official | 119:3921aeca8633 | 213 | &SCFSR_0, |
mbed_official | 119:3921aeca8633 | 214 | &SCFSR_1, |
mbed_official | 119:3921aeca8633 | 215 | &SCFSR_2, |
mbed_official | 119:3921aeca8633 | 216 | &SCFSR_3, |
mbed_official | 119:3921aeca8633 | 217 | &SCFSR_4, |
mbed_official | 119:3921aeca8633 | 218 | &SCFSR_5, |
mbed_official | 119:3921aeca8633 | 219 | &SCFSR_6, |
mbed_official | 119:3921aeca8633 | 220 | &SCFSR_7, |
mbed_official | 119:3921aeca8633 | 221 | }; |
mbed_official | 119:3921aeca8633 | 222 | |
mbed_official | 119:3921aeca8633 | 223 | |
mbed_official | 119:3921aeca8633 | 224 | void serial_init(serial_t *obj, PinName tx, PinName rx) { |
mbed_official | 119:3921aeca8633 | 225 | volatile uint8_t dummy ; |
mbed_official | 119:3921aeca8633 | 226 | int is_stdio_uart = 0; |
mbed_official | 119:3921aeca8633 | 227 | // determine the UART to use |
mbed_official | 119:3921aeca8633 | 228 | uint32_t uart_tx = pinmap_peripheral(tx, PinMap_UART_TX); |
mbed_official | 119:3921aeca8633 | 229 | uint32_t uart_rx = pinmap_peripheral(rx, PinMap_UART_RX); |
mbed_official | 119:3921aeca8633 | 230 | uint32_t uart = pinmap_merge(uart_tx, uart_rx); |
mbed_official | 119:3921aeca8633 | 231 | |
mbed_official | 119:3921aeca8633 | 232 | MBED_ASSERT((int)uart != NC); |
mbed_official | 119:3921aeca8633 | 233 | |
mbed_official | 119:3921aeca8633 | 234 | obj->uart = (struct st_scif *)SCIF[uart]; |
mbed_official | 119:3921aeca8633 | 235 | // enable power |
mbed_official | 119:3921aeca8633 | 236 | switch (uart) { |
mbed_official | 119:3921aeca8633 | 237 | case UART0: |
mbed_official | 119:3921aeca8633 | 238 | CPG.STBCR4 &= ~(1 << 7); |
mbed_official | 119:3921aeca8633 | 239 | break; |
mbed_official | 119:3921aeca8633 | 240 | case UART1: |
mbed_official | 119:3921aeca8633 | 241 | CPG.STBCR4 &= ~(1 << 6); |
mbed_official | 119:3921aeca8633 | 242 | break; |
mbed_official | 119:3921aeca8633 | 243 | case UART2: |
mbed_official | 119:3921aeca8633 | 244 | CPG.STBCR4 &= ~(1 << 5); |
mbed_official | 119:3921aeca8633 | 245 | break; |
mbed_official | 119:3921aeca8633 | 246 | case UART3: |
mbed_official | 119:3921aeca8633 | 247 | CPG.STBCR4 &= ~(1 << 4); |
mbed_official | 119:3921aeca8633 | 248 | break; |
mbed_official | 119:3921aeca8633 | 249 | case UART4: |
mbed_official | 119:3921aeca8633 | 250 | CPG.STBCR4 &= ~(1 << 3); |
mbed_official | 119:3921aeca8633 | 251 | break; |
mbed_official | 119:3921aeca8633 | 252 | case UART5: |
mbed_official | 119:3921aeca8633 | 253 | CPG.STBCR4 &= ~(1 << 2); |
mbed_official | 119:3921aeca8633 | 254 | break; |
mbed_official | 119:3921aeca8633 | 255 | case UART6: |
mbed_official | 119:3921aeca8633 | 256 | CPG.STBCR4 &= ~(1 << 1); |
mbed_official | 119:3921aeca8633 | 257 | break; |
mbed_official | 119:3921aeca8633 | 258 | case UART7: |
mbed_official | 119:3921aeca8633 | 259 | CPG.STBCR4 &= ~(1 << 0); |
mbed_official | 119:3921aeca8633 | 260 | break; |
mbed_official | 119:3921aeca8633 | 261 | } |
mbed_official | 119:3921aeca8633 | 262 | dummy = CPG.STBCR4; |
mbed_official | 119:3921aeca8633 | 263 | |
mbed_official | 119:3921aeca8633 | 264 | /* if this uart has been previously configured to tx, wait tx completion befor loading new configuration */ |
mbed_official | 119:3921aeca8633 | 265 | if(obj->uart->SCSCR & 0xA0) |
mbed_official | 119:3921aeca8633 | 266 | while(!(obj->uart->SCFSR & 0x0040)); |
mbed_official | 119:3921aeca8633 | 267 | |
mbed_official | 119:3921aeca8633 | 268 | /* ==== SCIF initial setting ==== */ |
mbed_official | 119:3921aeca8633 | 269 | /* ---- Serial control register (SCSCR) setting ---- */ |
mbed_official | 119:3921aeca8633 | 270 | /* B'00 : Internal CLK */ |
mbed_official | 119:3921aeca8633 | 271 | obj->uart->SCSCR = 0x0000u; /* SCIF transmitting and receiving operations stop */ |
mbed_official | 119:3921aeca8633 | 272 | |
mbed_official | 119:3921aeca8633 | 273 | /* ---- FIFO control register (SCFCR) setting ---- */ |
mbed_official | 119:3921aeca8633 | 274 | /* Transmit FIFO reset & Receive FIFO data register reset */ |
mbed_official | 119:3921aeca8633 | 275 | obj->uart->SCFCR = 0x0006; |
mbed_official | 119:3921aeca8633 | 276 | |
mbed_official | 119:3921aeca8633 | 277 | /* ---- Serial status register (SCFSR) setting ---- */ |
mbed_official | 119:3921aeca8633 | 278 | dummy = obj->uart->SCFSR; |
mbed_official | 119:3921aeca8633 | 279 | obj->uart->SCFSR = (dummy & 0xFF6Cu); /* ER,BRK,DR bit clear */ |
mbed_official | 119:3921aeca8633 | 280 | |
mbed_official | 119:3921aeca8633 | 281 | /* ---- Line status register (SCLSR) setting ---- */ |
mbed_official | 119:3921aeca8633 | 282 | /* ORER bit clear */ |
mbed_official | 119:3921aeca8633 | 283 | obj->uart->SCLSR = 0; |
mbed_official | 119:3921aeca8633 | 284 | |
mbed_official | 119:3921aeca8633 | 285 | /* ---- Serial extension mode register (SCEMR) setting ---- |
mbed_official | 119:3921aeca8633 | 286 | b7 BGDM - Baud rate generator double-speed mode : Normal mode |
mbed_official | 119:3921aeca8633 | 287 | b0 ABCS - Base clock select in asynchronous mode : Base clock is 16 times the bit rate */ |
mbed_official | 119:3921aeca8633 | 288 | obj->uart->SCEMR = 0x0000u; |
mbed_official | 119:3921aeca8633 | 289 | |
mbed_official | 119:3921aeca8633 | 290 | /* ---- Bit rate register (SCBRR) setting ---- */ |
mbed_official | 119:3921aeca8633 | 291 | serial_baud (obj, 9600); |
mbed_official | 119:3921aeca8633 | 292 | serial_format(obj, 8, ParityNone, 1); |
mbed_official | 119:3921aeca8633 | 293 | |
mbed_official | 119:3921aeca8633 | 294 | /* ---- FIFO control register (SCFCR) setting ---- */ |
mbed_official | 119:3921aeca8633 | 295 | obj->uart->SCFCR = 0x0030u; |
mbed_official | 119:3921aeca8633 | 296 | |
mbed_official | 119:3921aeca8633 | 297 | /* ---- Serial port register (SCSPTR) setting ---- |
mbed_official | 119:3921aeca8633 | 298 | b1 SPB2IO - Serial port break output : disabled |
mbed_official | 119:3921aeca8633 | 299 | b0 SPB2DT - Serial port break data : High-level */ |
mbed_official | 119:3921aeca8633 | 300 | obj->uart->SCSPTR = 0x0003u; // SPB2IO = 1, SPB2DT = 1 |
mbed_official | 119:3921aeca8633 | 301 | |
mbed_official | 119:3921aeca8633 | 302 | /* ---- Line status register (SCLSR) setting ---- |
mbed_official | 119:3921aeca8633 | 303 | b0 ORER - Overrun error detect : clear */ |
mbed_official | 119:3921aeca8633 | 304 | |
mbed_official | 119:3921aeca8633 | 305 | if (obj->uart->SCLSR & 0x0001) { |
mbed_official | 119:3921aeca8633 | 306 | obj->uart->SCLSR = 0u; // ORER clear |
mbed_official | 119:3921aeca8633 | 307 | } |
mbed_official | 119:3921aeca8633 | 308 | |
mbed_official | 119:3921aeca8633 | 309 | // pinout the chosen uart |
mbed_official | 119:3921aeca8633 | 310 | pinmap_pinout(tx, PinMap_UART_TX); |
mbed_official | 119:3921aeca8633 | 311 | pinmap_pinout(rx, PinMap_UART_RX); |
mbed_official | 119:3921aeca8633 | 312 | |
mbed_official | 119:3921aeca8633 | 313 | switch (uart) { |
mbed_official | 119:3921aeca8633 | 314 | case UART0: |
mbed_official | 119:3921aeca8633 | 315 | obj->index = 0; |
mbed_official | 119:3921aeca8633 | 316 | break; |
mbed_official | 119:3921aeca8633 | 317 | case UART1: |
mbed_official | 119:3921aeca8633 | 318 | obj->index = 1; |
mbed_official | 119:3921aeca8633 | 319 | break; |
mbed_official | 119:3921aeca8633 | 320 | case UART2: |
mbed_official | 119:3921aeca8633 | 321 | obj->index = 2; |
mbed_official | 119:3921aeca8633 | 322 | break; |
mbed_official | 119:3921aeca8633 | 323 | case UART3: |
mbed_official | 119:3921aeca8633 | 324 | obj->index = 3; |
mbed_official | 119:3921aeca8633 | 325 | break; |
mbed_official | 119:3921aeca8633 | 326 | case UART4: |
mbed_official | 119:3921aeca8633 | 327 | obj->index = 4; |
mbed_official | 119:3921aeca8633 | 328 | break; |
mbed_official | 119:3921aeca8633 | 329 | case UART5: |
mbed_official | 119:3921aeca8633 | 330 | obj->index = 5; |
mbed_official | 119:3921aeca8633 | 331 | break; |
mbed_official | 119:3921aeca8633 | 332 | case UART6: |
mbed_official | 119:3921aeca8633 | 333 | obj->index = 6; |
mbed_official | 119:3921aeca8633 | 334 | break; |
mbed_official | 119:3921aeca8633 | 335 | case UART7: |
mbed_official | 119:3921aeca8633 | 336 | obj->index = 7; |
mbed_official | 119:3921aeca8633 | 337 | break; |
mbed_official | 119:3921aeca8633 | 338 | } |
mbed_official | 119:3921aeca8633 | 339 | uart_data[obj->index].sw_rts.pin = NC; |
mbed_official | 119:3921aeca8633 | 340 | uart_data[obj->index].sw_cts.pin = NC; |
mbed_official | 119:3921aeca8633 | 341 | |
mbed_official | 119:3921aeca8633 | 342 | /* ---- Serial control register (SCSCR) setting ---- */ |
mbed_official | 119:3921aeca8633 | 343 | /* Setting the TE and RE bits enables the TxD and RxD pins to be used. */ |
mbed_official | 119:3921aeca8633 | 344 | obj->uart->SCSCR = (((uart_tx != (uint32_t)NC)? 0xA0 : 0) | ((uart_rx != (uint32_t)NC)? 0x50 : 0 )); //0x00F0; |
mbed_official | 119:3921aeca8633 | 345 | |
mbed_official | 119:3921aeca8633 | 346 | is_stdio_uart = (uart == STDIO_UART) ? (1) : (0); |
mbed_official | 119:3921aeca8633 | 347 | |
mbed_official | 119:3921aeca8633 | 348 | if (is_stdio_uart) { |
mbed_official | 119:3921aeca8633 | 349 | stdio_uart_inited = 1; |
mbed_official | 119:3921aeca8633 | 350 | memcpy(&stdio_uart, obj, sizeof(serial_t)); |
mbed_official | 119:3921aeca8633 | 351 | } |
mbed_official | 119:3921aeca8633 | 352 | } |
mbed_official | 119:3921aeca8633 | 353 | |
mbed_official | 119:3921aeca8633 | 354 | void serial_free(serial_t *obj) { |
mbed_official | 119:3921aeca8633 | 355 | uart_data[obj->index].serial_irq_id = 0; |
mbed_official | 119:3921aeca8633 | 356 | } |
mbed_official | 119:3921aeca8633 | 357 | |
mbed_official | 119:3921aeca8633 | 358 | // serial_baud |
mbed_official | 119:3921aeca8633 | 359 | // set the baud rate, taking in to account the current SystemFrequency |
mbed_official | 119:3921aeca8633 | 360 | void serial_baud(serial_t *obj, int baudrate) { |
mbed_official | 119:3921aeca8633 | 361 | uint16_t DL; |
mbed_official | 119:3921aeca8633 | 362 | |
mbed_official | 119:3921aeca8633 | 363 | obj->uart->SCSMR &= ~0x0003; |
mbed_official | 119:3921aeca8633 | 364 | |
mbed_official | 119:3921aeca8633 | 365 | if (baudrate > 32552) { |
mbed_official | 119:3921aeca8633 | 366 | obj->uart->SCEMR = 0x0081; // BGDM = 1, ABCS = 1 |
mbed_official | 119:3921aeca8633 | 367 | DL = PCLK / (8 * baudrate); |
mbed_official | 119:3921aeca8633 | 368 | if (DL > 0) { |
mbed_official | 119:3921aeca8633 | 369 | DL--; |
mbed_official | 119:3921aeca8633 | 370 | } |
mbed_official | 119:3921aeca8633 | 371 | obj->uart->SCBRR = (uint8_t)DL; |
mbed_official | 119:3921aeca8633 | 372 | } else if (baudrate > 16276) { |
mbed_official | 119:3921aeca8633 | 373 | obj->uart->SCEMR = 0x0080; // BGDM = 1 |
mbed_official | 119:3921aeca8633 | 374 | obj->uart->SCBRR = PCLK / (16 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 375 | } else if (baudrate > 8138) { |
mbed_official | 119:3921aeca8633 | 376 | obj->uart->SCEMR = 0x0000; |
mbed_official | 119:3921aeca8633 | 377 | obj->uart->SCBRR = PCLK / (32 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 378 | } else if (baudrate > 4169) { |
mbed_official | 119:3921aeca8633 | 379 | obj->uart->SCSMR |= 0x0001; |
mbed_official | 119:3921aeca8633 | 380 | obj->uart->SCEMR = 0x0080; // BGDM = 1 |
mbed_official | 119:3921aeca8633 | 381 | obj->uart->SCBRR = PCLK / (64 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 382 | } else if (baudrate > 2034) { |
mbed_official | 119:3921aeca8633 | 383 | obj->uart->SCSMR |= 0x0001; |
mbed_official | 119:3921aeca8633 | 384 | obj->uart->SCEMR = 0x0000; |
mbed_official | 119:3921aeca8633 | 385 | obj->uart->SCBRR = PCLK / (128 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 386 | } else if (baudrate > 1017) { |
mbed_official | 119:3921aeca8633 | 387 | obj->uart->SCSMR |= 0x0002; |
mbed_official | 119:3921aeca8633 | 388 | obj->uart->SCEMR = 0x0080; // BGDM = 1 |
mbed_official | 119:3921aeca8633 | 389 | obj->uart->SCBRR = PCLK / (256 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 390 | } else if (baudrate > 508) { |
mbed_official | 119:3921aeca8633 | 391 | obj->uart->SCSMR |= 0x0002; |
mbed_official | 119:3921aeca8633 | 392 | obj->uart->SCEMR = 0x0000; |
mbed_official | 119:3921aeca8633 | 393 | obj->uart->SCBRR = PCLK / (512 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 394 | } else if (baudrate > 254) { |
mbed_official | 119:3921aeca8633 | 395 | obj->uart->SCSMR |= 0x0003; |
mbed_official | 119:3921aeca8633 | 396 | obj->uart->SCEMR = 0x0080; // BGDM = 1 |
mbed_official | 119:3921aeca8633 | 397 | obj->uart->SCBRR = PCLK / (1024 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 398 | } else if (baudrate > 127) { |
mbed_official | 119:3921aeca8633 | 399 | obj->uart->SCSMR |= 0x0003; |
mbed_official | 119:3921aeca8633 | 400 | obj->uart->SCEMR = 0x0000; |
mbed_official | 119:3921aeca8633 | 401 | obj->uart->SCBRR = PCLK / (2048 * baudrate) - 1; |
mbed_official | 119:3921aeca8633 | 402 | } else { |
mbed_official | 119:3921aeca8633 | 403 | obj->uart->SCSMR |= 0x0003; |
mbed_official | 119:3921aeca8633 | 404 | obj->uart->SCEMR = 0x0000; |
mbed_official | 119:3921aeca8633 | 405 | obj->uart->SCBRR = 0xFFu; |
mbed_official | 119:3921aeca8633 | 406 | } |
mbed_official | 119:3921aeca8633 | 407 | } |
mbed_official | 119:3921aeca8633 | 408 | |
mbed_official | 119:3921aeca8633 | 409 | void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) { |
mbed_official | 119:3921aeca8633 | 410 | int parity_enable; |
mbed_official | 119:3921aeca8633 | 411 | int parity_select; |
mbed_official | 119:3921aeca8633 | 412 | |
mbed_official | 119:3921aeca8633 | 413 | MBED_ASSERT((stop_bits == 1) || (stop_bits == 2)); // 0: 1 stop bits, 1: 2 stop bits |
mbed_official | 119:3921aeca8633 | 414 | MBED_ASSERT((data_bits > 4) && (data_bits < 9)); // 5: 5 data bits ... 3: 8 data bits |
mbed_official | 119:3921aeca8633 | 415 | MBED_ASSERT((parity == ParityNone) || (parity == ParityOdd) || (parity == ParityEven) || |
mbed_official | 119:3921aeca8633 | 416 | (parity == ParityForced1) || (parity == ParityForced0)); |
mbed_official | 119:3921aeca8633 | 417 | |
mbed_official | 119:3921aeca8633 | 418 | stop_bits = (stop_bits == 1)? 0: |
mbed_official | 119:3921aeca8633 | 419 | (stop_bits == 2)? 1: |
mbed_official | 119:3921aeca8633 | 420 | 0; // must not to be |
mbed_official | 119:3921aeca8633 | 421 | |
mbed_official | 119:3921aeca8633 | 422 | data_bits = (data_bits == 8)? 0: |
mbed_official | 119:3921aeca8633 | 423 | (data_bits == 7)? 1: |
mbed_official | 119:3921aeca8633 | 424 | 0; // must not to be |
mbed_official | 119:3921aeca8633 | 425 | |
mbed_official | 119:3921aeca8633 | 426 | switch (parity) { |
mbed_official | 119:3921aeca8633 | 427 | case ParityNone: |
mbed_official | 119:3921aeca8633 | 428 | parity_enable = 0; |
mbed_official | 119:3921aeca8633 | 429 | parity_select = 0; |
mbed_official | 119:3921aeca8633 | 430 | break; |
mbed_official | 119:3921aeca8633 | 431 | case ParityOdd: |
mbed_official | 119:3921aeca8633 | 432 | parity_enable = 1; |
mbed_official | 119:3921aeca8633 | 433 | parity_select = 1; |
mbed_official | 119:3921aeca8633 | 434 | break; |
mbed_official | 119:3921aeca8633 | 435 | case ParityEven: |
mbed_official | 119:3921aeca8633 | 436 | parity_enable = 1; |
mbed_official | 119:3921aeca8633 | 437 | parity_select = 0; |
mbed_official | 119:3921aeca8633 | 438 | break; |
mbed_official | 119:3921aeca8633 | 439 | case ParityForced1: |
mbed_official | 119:3921aeca8633 | 440 | case ParityForced0: |
mbed_official | 119:3921aeca8633 | 441 | default: |
mbed_official | 119:3921aeca8633 | 442 | parity_enable = 0; |
mbed_official | 119:3921aeca8633 | 443 | parity_select = 0; |
mbed_official | 119:3921aeca8633 | 444 | break; |
mbed_official | 119:3921aeca8633 | 445 | } |
mbed_official | 119:3921aeca8633 | 446 | |
mbed_official | 119:3921aeca8633 | 447 | obj->uart->SCSMR = data_bits << 6 |
mbed_official | 119:3921aeca8633 | 448 | | parity_enable << 5 |
mbed_official | 119:3921aeca8633 | 449 | | parity_select << 4 |
mbed_official | 119:3921aeca8633 | 450 | | stop_bits << 3; |
mbed_official | 119:3921aeca8633 | 451 | } |
mbed_official | 119:3921aeca8633 | 452 | |
mbed_official | 119:3921aeca8633 | 453 | /****************************************************************************** |
mbed_official | 119:3921aeca8633 | 454 | * INTERRUPTS HANDLING |
mbed_official | 119:3921aeca8633 | 455 | ******************************************************************************/ |
mbed_official | 119:3921aeca8633 | 456 | |
mbed_official | 119:3921aeca8633 | 457 | static void uart_tx_irq(IRQn_Type irq_num, uint32_t index) { |
mbed_official | 119:3921aeca8633 | 458 | __IO uint16_t *dmy_rd_scscr; |
mbed_official | 119:3921aeca8633 | 459 | __IO uint16_t *dmy_rd_scfsr; |
mbed_official | 119:3921aeca8633 | 460 | |
mbed_official | 119:3921aeca8633 | 461 | dmy_rd_scscr = SCSCR_MATCH[index]; |
mbed_official | 119:3921aeca8633 | 462 | *dmy_rd_scscr &= 0x007B; // Clear TIE and Write to bit15~8,2 is always 0 |
mbed_official | 119:3921aeca8633 | 463 | dmy_rd_scfsr = SCFSR_MATCH[index]; |
mbed_official | 119:3921aeca8633 | 464 | *dmy_rd_scfsr = (*dmy_rd_scfsr & ~0x0020); // Clear TDFE |
mbed_official | 119:3921aeca8633 | 465 | |
mbed_official | 119:3921aeca8633 | 466 | irq_handler(uart_data[index].serial_irq_id, TxIrq); |
mbed_official | 119:3921aeca8633 | 467 | } |
mbed_official | 119:3921aeca8633 | 468 | |
mbed_official | 119:3921aeca8633 | 469 | static void uart_rx_irq(IRQn_Type irq_num, uint32_t index) { |
mbed_official | 119:3921aeca8633 | 470 | __IO uint16_t *dmy_rd_scscr; |
mbed_official | 119:3921aeca8633 | 471 | __IO uint16_t *dmy_rd_scfsr; |
mbed_official | 119:3921aeca8633 | 472 | |
mbed_official | 119:3921aeca8633 | 473 | dmy_rd_scscr = SCSCR_MATCH[index]; |
mbed_official | 119:3921aeca8633 | 474 | *dmy_rd_scscr &= 0x00B3; // Clear RIE,REIE and Write to bit15~8,2 is always 0 |
mbed_official | 119:3921aeca8633 | 475 | dmy_rd_scfsr = SCFSR_MATCH[index]; |
mbed_official | 119:3921aeca8633 | 476 | *dmy_rd_scfsr = (*dmy_rd_scfsr & ~0x0003); // Clear RDF,DR |
mbed_official | 119:3921aeca8633 | 477 | |
mbed_official | 119:3921aeca8633 | 478 | irq_handler(uart_data[index].serial_irq_id, RxIrq); |
mbed_official | 119:3921aeca8633 | 479 | } |
mbed_official | 119:3921aeca8633 | 480 | |
mbed_official | 119:3921aeca8633 | 481 | /* TX handler */ |
mbed_official | 119:3921aeca8633 | 482 | static void uart0_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 483 | uart_tx_irq(SCIFTXI0_IRQn, 0); |
mbed_official | 119:3921aeca8633 | 484 | } |
mbed_official | 119:3921aeca8633 | 485 | static void uart1_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 486 | uart_tx_irq(SCIFTXI1_IRQn, 1); |
mbed_official | 119:3921aeca8633 | 487 | } |
mbed_official | 119:3921aeca8633 | 488 | static void uart2_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 489 | uart_tx_irq(SCIFTXI2_IRQn, 2); |
mbed_official | 119:3921aeca8633 | 490 | } |
mbed_official | 119:3921aeca8633 | 491 | static void uart3_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 492 | uart_tx_irq(SCIFTXI3_IRQn, 3); |
mbed_official | 119:3921aeca8633 | 493 | } |
mbed_official | 119:3921aeca8633 | 494 | static void uart4_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 495 | uart_tx_irq(SCIFTXI4_IRQn, 4); |
mbed_official | 119:3921aeca8633 | 496 | } |
mbed_official | 119:3921aeca8633 | 497 | static void uart5_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 498 | uart_tx_irq(SCIFTXI5_IRQn, 5); |
mbed_official | 119:3921aeca8633 | 499 | } |
mbed_official | 119:3921aeca8633 | 500 | static void uart6_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 501 | uart_tx_irq(SCIFTXI6_IRQn, 6); |
mbed_official | 119:3921aeca8633 | 502 | } |
mbed_official | 119:3921aeca8633 | 503 | static void uart7_tx_irq(void) { |
mbed_official | 119:3921aeca8633 | 504 | uart_tx_irq(SCIFTXI7_IRQn, 7); |
mbed_official | 119:3921aeca8633 | 505 | } |
mbed_official | 119:3921aeca8633 | 506 | /* RX handler */ |
mbed_official | 119:3921aeca8633 | 507 | static void uart0_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 508 | uart_rx_irq(SCIFRXI0_IRQn, 0); |
mbed_official | 119:3921aeca8633 | 509 | } |
mbed_official | 119:3921aeca8633 | 510 | static void uart1_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 511 | uart_rx_irq(SCIFRXI1_IRQn, 1); |
mbed_official | 119:3921aeca8633 | 512 | } |
mbed_official | 119:3921aeca8633 | 513 | static void uart2_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 514 | uart_rx_irq(SCIFRXI2_IRQn, 2); |
mbed_official | 119:3921aeca8633 | 515 | } |
mbed_official | 119:3921aeca8633 | 516 | static void uart3_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 517 | uart_rx_irq(SCIFRXI3_IRQn, 3); |
mbed_official | 119:3921aeca8633 | 518 | } |
mbed_official | 119:3921aeca8633 | 519 | static void uart4_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 520 | uart_rx_irq(SCIFRXI4_IRQn, 4); |
mbed_official | 119:3921aeca8633 | 521 | } |
mbed_official | 119:3921aeca8633 | 522 | static void uart5_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 523 | uart_rx_irq(SCIFRXI5_IRQn, 5); |
mbed_official | 119:3921aeca8633 | 524 | } |
mbed_official | 119:3921aeca8633 | 525 | static void uart6_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 526 | uart_rx_irq(SCIFRXI6_IRQn, 6); |
mbed_official | 119:3921aeca8633 | 527 | } |
mbed_official | 119:3921aeca8633 | 528 | static void uart7_rx_irq(void) { |
mbed_official | 119:3921aeca8633 | 529 | uart_rx_irq(SCIFRXI7_IRQn, 7); |
mbed_official | 119:3921aeca8633 | 530 | } |
mbed_official | 119:3921aeca8633 | 531 | |
mbed_official | 119:3921aeca8633 | 532 | void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) { |
mbed_official | 119:3921aeca8633 | 533 | irq_handler = handler; |
mbed_official | 119:3921aeca8633 | 534 | uart_data[obj->index].serial_irq_id = id; |
mbed_official | 119:3921aeca8633 | 535 | } |
mbed_official | 119:3921aeca8633 | 536 | |
mbed_official | 119:3921aeca8633 | 537 | static void serial_irq_set_internal(serial_t *obj, SerialIrq irq, uint32_t enable) { |
mbed_official | 119:3921aeca8633 | 538 | IRQn_Type IRQn; |
mbed_official | 119:3921aeca8633 | 539 | IRQHandler handler; |
mbed_official | 119:3921aeca8633 | 540 | |
mbed_official | 119:3921aeca8633 | 541 | IRQn = irq_set_tbl[obj->index][irq]; |
mbed_official | 119:3921aeca8633 | 542 | handler = hander_set_tbl[obj->index][irq]; |
mbed_official | 119:3921aeca8633 | 543 | |
mbed_official | 119:3921aeca8633 | 544 | if ((obj->index >= 0) && (obj->index <= 7)) { |
mbed_official | 119:3921aeca8633 | 545 | if (enable) { |
mbed_official | 119:3921aeca8633 | 546 | InterruptHandlerRegister(IRQn, (void (*)(uint32_t))handler); |
mbed_official | 119:3921aeca8633 | 547 | GIC_SetPriority(IRQn, 5); |
mbed_official | 119:3921aeca8633 | 548 | GIC_EnableIRQ(IRQn); |
mbed_official | 119:3921aeca8633 | 549 | } else { |
mbed_official | 119:3921aeca8633 | 550 | GIC_DisableIRQ(IRQn); |
mbed_official | 119:3921aeca8633 | 551 | } |
mbed_official | 119:3921aeca8633 | 552 | } |
mbed_official | 119:3921aeca8633 | 553 | } |
mbed_official | 119:3921aeca8633 | 554 | |
mbed_official | 119:3921aeca8633 | 555 | void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) { |
mbed_official | 119:3921aeca8633 | 556 | if (RxIrq == irq) { |
mbed_official | 119:3921aeca8633 | 557 | uart_data[obj->index].rx_irq_set_api = enable; |
mbed_official | 119:3921aeca8633 | 558 | } |
mbed_official | 119:3921aeca8633 | 559 | serial_irq_set_internal(obj, irq, enable); |
mbed_official | 119:3921aeca8633 | 560 | } |
mbed_official | 119:3921aeca8633 | 561 | |
mbed_official | 119:3921aeca8633 | 562 | static void serial_flow_irq_set(serial_t *obj, uint32_t enable) { |
mbed_official | 119:3921aeca8633 | 563 | uart_data[obj->index].rx_irq_set_flow = enable; |
mbed_official | 119:3921aeca8633 | 564 | serial_irq_set_internal(obj, RxIrq, enable); |
mbed_official | 119:3921aeca8633 | 565 | } |
mbed_official | 119:3921aeca8633 | 566 | |
mbed_official | 119:3921aeca8633 | 567 | /****************************************************************************** |
mbed_official | 119:3921aeca8633 | 568 | * READ/WRITE |
mbed_official | 119:3921aeca8633 | 569 | ******************************************************************************/ |
mbed_official | 119:3921aeca8633 | 570 | int serial_getc(serial_t *obj) { |
mbed_official | 119:3921aeca8633 | 571 | uint16_t err_read; |
mbed_official | 119:3921aeca8633 | 572 | int data; |
mbed_official | 119:3921aeca8633 | 573 | int was_masked; |
mbed_official | 119:3921aeca8633 | 574 | |
mbed_official | 119:3921aeca8633 | 575 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 576 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 577 | #else |
mbed_official | 119:3921aeca8633 | 578 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 579 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 580 | if (obj->uart->SCFSR & 0x93) { |
mbed_official | 119:3921aeca8633 | 581 | err_read = obj->uart->SCFSR; |
mbed_official | 119:3921aeca8633 | 582 | obj->uart->SCFSR = (err_read & ~0x93); |
mbed_official | 119:3921aeca8633 | 583 | } |
mbed_official | 119:3921aeca8633 | 584 | obj->uart->SCSCR |= 0x0040; // Set RIE |
mbed_official | 119:3921aeca8633 | 585 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 586 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 587 | } |
mbed_official | 119:3921aeca8633 | 588 | |
mbed_official | 119:3921aeca8633 | 589 | if (obj->uart->SCLSR & 0x0001) { |
mbed_official | 119:3921aeca8633 | 590 | obj->uart->SCLSR = 0u; // ORER clear |
mbed_official | 119:3921aeca8633 | 591 | } |
mbed_official | 119:3921aeca8633 | 592 | |
mbed_official | 119:3921aeca8633 | 593 | while (!serial_readable(obj)); |
mbed_official | 119:3921aeca8633 | 594 | data = obj->uart->SCFRDR & 0xff; |
mbed_official | 119:3921aeca8633 | 595 | |
mbed_official | 119:3921aeca8633 | 596 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 597 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 598 | #else |
mbed_official | 119:3921aeca8633 | 599 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 600 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 601 | err_read = obj->uart->SCFSR; |
mbed_official | 119:3921aeca8633 | 602 | obj->uart->SCFSR = (err_read & 0xfffD); // Clear RDF |
mbed_official | 119:3921aeca8633 | 603 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 604 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 605 | } |
mbed_official | 119:3921aeca8633 | 606 | |
mbed_official | 119:3921aeca8633 | 607 | if (err_read & 0x80) { |
mbed_official | 119:3921aeca8633 | 608 | data = -1; //err |
mbed_official | 119:3921aeca8633 | 609 | } |
mbed_official | 119:3921aeca8633 | 610 | return data; |
mbed_official | 119:3921aeca8633 | 611 | } |
mbed_official | 119:3921aeca8633 | 612 | |
mbed_official | 119:3921aeca8633 | 613 | void serial_putc(serial_t *obj, int c) { |
mbed_official | 119:3921aeca8633 | 614 | uint16_t dummy_read; |
mbed_official | 119:3921aeca8633 | 615 | int was_masked; |
mbed_official | 119:3921aeca8633 | 616 | |
mbed_official | 119:3921aeca8633 | 617 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 618 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 619 | #else |
mbed_official | 119:3921aeca8633 | 620 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 621 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 622 | obj->uart->SCSCR |= 0x0080; // Set TIE |
mbed_official | 119:3921aeca8633 | 623 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 624 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 625 | } |
mbed_official | 119:3921aeca8633 | 626 | while (!serial_writable(obj)); |
mbed_official | 119:3921aeca8633 | 627 | obj->uart->SCFTDR = c; |
mbed_official | 119:3921aeca8633 | 628 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 629 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 630 | #else |
mbed_official | 119:3921aeca8633 | 631 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 632 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 633 | dummy_read = obj->uart->SCFSR; |
mbed_official | 119:3921aeca8633 | 634 | obj->uart->SCFSR = (dummy_read & 0xff9f); // Clear TEND/TDFE |
mbed_official | 119:3921aeca8633 | 635 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 636 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 637 | } |
mbed_official | 119:3921aeca8633 | 638 | uart_data[obj->index].count++; |
mbed_official | 119:3921aeca8633 | 639 | } |
mbed_official | 119:3921aeca8633 | 640 | |
mbed_official | 119:3921aeca8633 | 641 | int serial_readable(serial_t *obj) { |
mbed_official | 119:3921aeca8633 | 642 | return ((obj->uart->SCFSR & 0x02) != 0); // RDF |
mbed_official | 119:3921aeca8633 | 643 | } |
mbed_official | 119:3921aeca8633 | 644 | |
mbed_official | 119:3921aeca8633 | 645 | int serial_writable(serial_t *obj) { |
mbed_official | 119:3921aeca8633 | 646 | return ((obj->uart->SCFSR & 0x20) != 0); // TDFE |
mbed_official | 119:3921aeca8633 | 647 | } |
mbed_official | 119:3921aeca8633 | 648 | |
mbed_official | 119:3921aeca8633 | 649 | void serial_clear(serial_t *obj) { |
mbed_official | 119:3921aeca8633 | 650 | int was_masked; |
mbed_official | 119:3921aeca8633 | 651 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 652 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 653 | #else |
mbed_official | 119:3921aeca8633 | 654 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 655 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 656 | |
mbed_official | 119:3921aeca8633 | 657 | obj->uart->SCFCR |= 0x06; // TFRST = 1, RFRST = 1 |
mbed_official | 119:3921aeca8633 | 658 | obj->uart->SCFCR &= ~0x06; // TFRST = 0, RFRST = 0 |
mbed_official | 119:3921aeca8633 | 659 | obj->uart->SCFSR &= ~0x0093u; // ER, BRK, RDF, DR = 0 |
mbed_official | 119:3921aeca8633 | 660 | |
mbed_official | 119:3921aeca8633 | 661 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 662 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 663 | } |
mbed_official | 119:3921aeca8633 | 664 | } |
mbed_official | 119:3921aeca8633 | 665 | |
mbed_official | 119:3921aeca8633 | 666 | void serial_pinout_tx(PinName tx) { |
mbed_official | 119:3921aeca8633 | 667 | pinmap_pinout(tx, PinMap_UART_TX); |
mbed_official | 119:3921aeca8633 | 668 | } |
mbed_official | 119:3921aeca8633 | 669 | |
mbed_official | 119:3921aeca8633 | 670 | void serial_break_set(serial_t *obj) { |
mbed_official | 119:3921aeca8633 | 671 | int was_masked; |
mbed_official | 119:3921aeca8633 | 672 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 673 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 674 | #else |
mbed_official | 119:3921aeca8633 | 675 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 676 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 677 | // TxD Output(L) |
mbed_official | 119:3921aeca8633 | 678 | obj->uart->SCSPTR &= ~0x0001u; // SPB2DT = 0 |
mbed_official | 119:3921aeca8633 | 679 | obj->uart->SCSCR &= ~0x0020u; // TE = 0 (Output disable) |
mbed_official | 119:3921aeca8633 | 680 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 681 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 682 | } |
mbed_official | 119:3921aeca8633 | 683 | } |
mbed_official | 119:3921aeca8633 | 684 | |
mbed_official | 119:3921aeca8633 | 685 | void serial_break_clear(serial_t *obj) { |
mbed_official | 119:3921aeca8633 | 686 | int was_masked; |
mbed_official | 119:3921aeca8633 | 687 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 688 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 689 | #else |
mbed_official | 119:3921aeca8633 | 690 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 691 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 692 | obj->uart->SCSCR |= 0x0020u; // TE = 1 (Output enable) |
mbed_official | 119:3921aeca8633 | 693 | obj->uart->SCSPTR |= 0x0001u; // SPB2DT = 1 |
mbed_official | 119:3921aeca8633 | 694 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 695 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 696 | } |
mbed_official | 119:3921aeca8633 | 697 | } |
mbed_official | 119:3921aeca8633 | 698 | |
mbed_official | 119:3921aeca8633 | 699 | void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, PinName txflow) { |
mbed_official | 119:3921aeca8633 | 700 | // determine the UART to use |
mbed_official | 119:3921aeca8633 | 701 | int was_masked; |
mbed_official | 119:3921aeca8633 | 702 | |
mbed_official | 119:3921aeca8633 | 703 | serial_flow_irq_set(obj, 0); |
mbed_official | 119:3921aeca8633 | 704 | |
mbed_official | 119:3921aeca8633 | 705 | if (type == FlowControlRTSCTS) { |
mbed_official | 119:3921aeca8633 | 706 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 707 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 708 | #else |
mbed_official | 119:3921aeca8633 | 709 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 710 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 711 | obj->uart->SCFCR = 0x0008u; // CTS/RTS enable |
mbed_official | 119:3921aeca8633 | 712 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 713 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 714 | } |
mbed_official | 119:3921aeca8633 | 715 | pinmap_pinout(rxflow, PinMap_UART_RTS); |
mbed_official | 119:3921aeca8633 | 716 | pinmap_pinout(txflow, PinMap_UART_CTS); |
mbed_official | 119:3921aeca8633 | 717 | } else { |
mbed_official | 119:3921aeca8633 | 718 | #if defined ( __ICCARM__ ) |
mbed_official | 119:3921aeca8633 | 719 | was_masked = __disable_irq_iar(); |
mbed_official | 119:3921aeca8633 | 720 | #else |
mbed_official | 119:3921aeca8633 | 721 | was_masked = __disable_irq(); |
mbed_official | 119:3921aeca8633 | 722 | #endif /* __ICCARM__ */ |
mbed_official | 119:3921aeca8633 | 723 | obj->uart->SCFCR = 0x0000u; // CTS/RTS diable |
mbed_official | 119:3921aeca8633 | 724 | if (!was_masked) { |
mbed_official | 119:3921aeca8633 | 725 | __enable_irq(); |
mbed_official | 119:3921aeca8633 | 726 | } |
mbed_official | 119:3921aeca8633 | 727 | } |
mbed_official | 119:3921aeca8633 | 728 | } |
mbed_official | 119:3921aeca8633 | 729 | |
mbed_official | 119:3921aeca8633 | 730 | |
mbed_official | 119:3921aeca8633 | 731 | |
mbed_official | 119:3921aeca8633 | 732 |