[fcee56c0] | 1 | /* |
---|
| 2 | * console.c -- console I/O package |
---|
| 3 | * |
---|
| 4 | * Copyright (C) 1999 Eric Valette. valette@crf.canon.fr |
---|
| 5 | * |
---|
| 6 | * This code is based on the pc386 BSP console.c so the following |
---|
| 7 | * copyright also applies : |
---|
| 8 | * |
---|
| 9 | * (C) Copyright 1997 - |
---|
| 10 | * - NavIST Group - Real-Time Distributed Systems and Industrial Automation |
---|
| 11 | * |
---|
[69ed59f] | 12 | * Till Straumann, <strauman@slac.stanford.edu>, 12/20/2001 |
---|
| 13 | * separate BSP specific stuff from generics... |
---|
| 14 | * |
---|
[fcee56c0] | 15 | * http://pandora.ist.utl.pt |
---|
| 16 | * |
---|
| 17 | * Instituto Superior Tecnico * Lisboa * PORTUGAL |
---|
| 18 | * The license and distribution terms for this file may be |
---|
[0c875c6a] | 19 | * found in the file LICENSE in this distribution or at |
---|
[c499856] | 20 | * http://www.rtems.org/license/LICENSE. |
---|
[fcee56c0] | 21 | */ |
---|
[6128a4a] | 22 | |
---|
[ba46ffa6] | 23 | #include <stdlib.h> |
---|
| 24 | #include <assert.h> |
---|
[c2a4b8bf] | 25 | #include <inttypes.h> |
---|
[93180ea2] | 26 | |
---|
[ba46ffa6] | 27 | #include <bsp.h> |
---|
| 28 | #include <bsp/irq.h> |
---|
[20603d1] | 29 | #include <rtems/bspIo.h> |
---|
[ba46ffa6] | 30 | #include <rtems/libio.h> |
---|
[b02c77c6] | 31 | #include <rtems/console.h> |
---|
[8e861444] | 32 | #include <rtems/termiostypes.h> |
---|
[ba46ffa6] | 33 | #include <termios.h> |
---|
| 34 | #include <bsp/uart.h> |
---|
[923dd7a] | 35 | #include <rtems/bspIo.h> /* printk */ |
---|
[ba46ffa6] | 36 | |
---|
| 37 | /* Definitions for BSPConsolePort */ |
---|
| 38 | /* |
---|
| 39 | * Possible value for console input/output : |
---|
[923dd7a] | 40 | * BSP_CONSOLE_PORT_CONSOLE |
---|
| 41 | * BSP_UART_COM1 |
---|
| 42 | * BSP_UART_COM2 |
---|
[ba46ffa6] | 43 | */ |
---|
[69ed59f] | 44 | int BSPConsolePort = BSP_CONSOLE_PORT; |
---|
[ba46ffa6] | 45 | |
---|
[69ed59f] | 46 | int BSPBaseBaud = BSP_UART_BAUD_BASE; |
---|
[ba46ffa6] | 47 | |
---|
[8e861444] | 48 | /* |
---|
| 49 | * TERMIOS_OUTPUT_MODE should be a 'bspopts.h/configure'-able option; |
---|
| 50 | * we could even make it a link-time option (but that would require |
---|
| 51 | * small changes)... |
---|
| 52 | */ |
---|
[c2a4b8bf] | 53 | #if defined(USE_POLLED_IO) |
---|
| 54 | #define TERMIOS_OUTPUT_MODE TERMIOS_POLLED |
---|
| 55 | #elif defined(USE_TASK_DRIVEN_IO) |
---|
| 56 | #define TERMIOS_OUTPUT_MODE TERMIOS_TASK_DRIVEN |
---|
| 57 | #else |
---|
| 58 | #define TERMIOS_OUTPUT_MODE TERMIOS_IRQ_DRIVEN |
---|
[8e861444] | 59 | #endif |
---|
| 60 | |
---|
[ba46ffa6] | 61 | /*-------------------------------------------------------------------------+ |
---|
| 62 | | External Prototypes |
---|
| 63 | +--------------------------------------------------------------------------*/ |
---|
| 64 | |
---|
| 65 | static int conSetAttr(int minor, const struct termios *); |
---|
| 66 | |
---|
[69ed59f] | 67 | typedef struct TtySTblRec_ { |
---|
[923dd7a] | 68 | char *name; |
---|
| 69 | rtems_irq_hdl isr; |
---|
[ac7af4a] | 70 | } TtySTblRec, *TtySTbl; |
---|
[69ed59f] | 71 | |
---|
| 72 | static TtySTblRec ttyS[]={ |
---|
[923dd7a] | 73 | { "/dev/ttyS0", |
---|
[69ed59f] | 74 | #ifdef BSP_UART_IOBASE_COM1 |
---|
[923dd7a] | 75 | BSP_uart_termios_isr_com1 |
---|
[69ed59f] | 76 | #else |
---|
[923dd7a] | 77 | 0 |
---|
[69ed59f] | 78 | #endif |
---|
[923dd7a] | 79 | }, |
---|
| 80 | { "/dev/ttyS1", |
---|
[69ed59f] | 81 | #ifdef BSP_UART_IOBASE_COM2 |
---|
[923dd7a] | 82 | BSP_uart_termios_isr_com2 |
---|
[69ed59f] | 83 | #else |
---|
[923dd7a] | 84 | 0 |
---|
[69ed59f] | 85 | #endif |
---|
[923dd7a] | 86 | }, |
---|
[69ed59f] | 87 | }; |
---|
| 88 | |
---|
[ba46ffa6] | 89 | /*-------------------------------------------------------------------------+ |
---|
| 90 | | Console device driver INITIALIZE entry point. |
---|
| 91 | +--------------------------------------------------------------------------+ |
---|
| 92 | | Initilizes the I/O console (keyboard + VGA display) driver. |
---|
| 93 | +--------------------------------------------------------------------------*/ |
---|
[923dd7a] | 94 | rtems_device_driver console_initialize( |
---|
| 95 | rtems_device_major_number major, |
---|
| 96 | rtems_device_minor_number minor, |
---|
| 97 | void *arg |
---|
| 98 | ) |
---|
[ba46ffa6] | 99 | { |
---|
| 100 | rtems_status_code status; |
---|
| 101 | |
---|
| 102 | /* |
---|
| 103 | * The video was initialized in the start.s code and does not need |
---|
| 104 | * to be reinitialized. |
---|
| 105 | */ |
---|
| 106 | |
---|
| 107 | /* |
---|
| 108 | * Set up TERMIOS |
---|
| 109 | */ |
---|
[923dd7a] | 110 | rtems_termios_initialize(); |
---|
[6128a4a] | 111 | |
---|
[ba46ffa6] | 112 | /* |
---|
| 113 | * Do device-specific initialization |
---|
| 114 | */ |
---|
| 115 | |
---|
[69ed59f] | 116 | /* RTEMS calls this routine once with 'minor'==0; loop through |
---|
| 117 | * all known instances... |
---|
[ba46ffa6] | 118 | */ |
---|
[6128a4a] | 119 | |
---|
[69ed59f] | 120 | for (minor=0; minor < sizeof(ttyS)/sizeof(ttyS[0]); minor++) { |
---|
[923dd7a] | 121 | char *nm; |
---|
| 122 | /* |
---|
| 123 | * Skip ports (possibly not supported by BSP...) we have no ISR for |
---|
| 124 | */ |
---|
| 125 | if ( ! ttyS[minor].isr ) |
---|
| 126 | continue; |
---|
| 127 | /* |
---|
| 128 | * Register the device |
---|
| 129 | */ |
---|
| 130 | status = rtems_io_register_name ((nm=ttyS[minor].name), major, minor); |
---|
| 131 | if ( RTEMS_SUCCESSFUL==status && BSPConsolePort == minor) { |
---|
[c2a4b8bf] | 132 | printk("Registering /dev/console as minor %" PRIu32 " (==%s)\n", |
---|
[923dd7a] | 133 | minor, |
---|
| 134 | ttyS[minor].name); |
---|
| 135 | /* also register an alias */ |
---|
| 136 | status = rtems_io_register_name ( (nm="/dev/console"), major, minor); |
---|
| 137 | } |
---|
| 138 | |
---|
| 139 | if (status != RTEMS_SUCCESSFUL) { |
---|
| 140 | printk("Error registering %s!\n",nm); |
---|
| 141 | rtems_fatal_error_occurred (status); |
---|
| 142 | } |
---|
[69ed59f] | 143 | } |
---|
[e79a1947] | 144 | |
---|
[ba46ffa6] | 145 | return RTEMS_SUCCESSFUL; |
---|
| 146 | } /* console_initialize */ |
---|
| 147 | |
---|
[9ca6799] | 148 | #if !defined(USE_POLLED_IO) |
---|
[69ed59f] | 149 | static int console_first_open(int major, int minor, void *arg) |
---|
| 150 | { |
---|
| 151 | rtems_status_code status; |
---|
| 152 | |
---|
[923dd7a] | 153 | /* must not open a minor device we have no ISR for */ |
---|
| 154 | assert( minor>=0 && minor < sizeof(ttyS)/sizeof(ttyS[0]) && ttyS[minor].isr ); |
---|
| 155 | |
---|
| 156 | /* 9600-8-N-1 */ |
---|
| 157 | BSP_uart_init(minor, 9600, 0); |
---|
| 158 | status = BSP_uart_install_isr(minor, ttyS[minor].isr); |
---|
| 159 | if (!status) { |
---|
| 160 | printk("Error installing serial console interrupt handler for '%s'!\n", |
---|
| 161 | ttyS[minor].name); |
---|
| 162 | rtems_fatal_error_occurred(status); |
---|
| 163 | } |
---|
[1f8ac4a] | 164 | |
---|
| 165 | /* |
---|
| 166 | * Pass data area info down to driver |
---|
| 167 | */ |
---|
| 168 | BSP_uart_termios_set(minor, ((rtems_libio_open_close_args_t *)arg)->iop->data1); |
---|
| 169 | |
---|
| 170 | /* Enable interrupts on channel */ |
---|
| 171 | BSP_uart_intr_ctrl(minor, BSP_UART_INTR_CTRL_TERMIOS); |
---|
| 172 | |
---|
[923dd7a] | 173 | return 0; |
---|
[69ed59f] | 174 | } |
---|
[9ca6799] | 175 | #endif |
---|
[69ed59f] | 176 | |
---|
[9ca6799] | 177 | #if !defined(USE_POLLED_IO) |
---|
[ba46ffa6] | 178 | static int console_last_close(int major, int minor, void *arg) |
---|
| 179 | { |
---|
[69ed59f] | 180 | BSP_uart_remove_isr(minor, ttyS[minor].isr); |
---|
[ba46ffa6] | 181 | return 0; |
---|
| 182 | } |
---|
[9ca6799] | 183 | #endif |
---|
[ba46ffa6] | 184 | |
---|
| 185 | /*-------------------------------------------------------------------------+ |
---|
| 186 | | Console device driver OPEN entry point |
---|
| 187 | +--------------------------------------------------------------------------*/ |
---|
[923dd7a] | 188 | rtems_device_driver console_open( |
---|
| 189 | rtems_device_major_number major, |
---|
| 190 | rtems_device_minor_number minor, |
---|
| 191 | void *arg |
---|
| 192 | ) |
---|
[ba46ffa6] | 193 | { |
---|
| 194 | rtems_status_code status; |
---|
[6128a4a] | 195 | static rtems_termios_callbacks cb = |
---|
[e79a1947] | 196 | #if defined(USE_POLLED_IO) |
---|
[ac7af4a] | 197 | { |
---|
[e79a1947] | 198 | NULL, /* firstOpen */ |
---|
| 199 | NULL, /* lastClose */ |
---|
| 200 | NULL, /* pollRead */ |
---|
| 201 | BSP_uart_termios_write_polled, /* write */ |
---|
| 202 | conSetAttr, /* setAttributes */ |
---|
| 203 | NULL, /* stopRemoteTx */ |
---|
| 204 | NULL, /* startRemoteTx */ |
---|
[8e861444] | 205 | TERMIOS_POLLED /* outputUsesInterrupts */ |
---|
[ba46ffa6] | 206 | }; |
---|
[e79a1947] | 207 | #else |
---|
[ac7af4a] | 208 | { |
---|
[e79a1947] | 209 | console_first_open, /* firstOpen */ |
---|
| 210 | console_last_close, /* lastClose */ |
---|
[c2a4b8bf] | 211 | #ifdef USE_TASK_DRIVEN_IO |
---|
[8e861444] | 212 | BSP_uart_termios_read_com, /* pollRead */ |
---|
| 213 | #else |
---|
[e79a1947] | 214 | NULL, /* pollRead */ |
---|
[8e861444] | 215 | #endif |
---|
[e79a1947] | 216 | BSP_uart_termios_write_com, /* write */ |
---|
| 217 | conSetAttr, /* setAttributes */ |
---|
| 218 | NULL, /* stopRemoteTx */ |
---|
| 219 | NULL, /* startRemoteTx */ |
---|
[8e861444] | 220 | TERMIOS_OUTPUT_MODE /* outputUsesInterrupts */ |
---|
[e79a1947] | 221 | }; |
---|
| 222 | #endif |
---|
[ba46ffa6] | 223 | |
---|
| 224 | status = rtems_termios_open (major, minor, arg, &cb); |
---|
| 225 | |
---|
[923dd7a] | 226 | if (status != RTEMS_SUCCESSFUL) { |
---|
| 227 | printk("Error opening console device\n"); |
---|
| 228 | return status; |
---|
| 229 | } |
---|
[ba46ffa6] | 230 | |
---|
| 231 | return RTEMS_SUCCESSFUL; |
---|
| 232 | } |
---|
| 233 | |
---|
| 234 | /*-------------------------------------------------------------------------+ |
---|
| 235 | | Console device driver CLOSE entry point |
---|
| 236 | +--------------------------------------------------------------------------*/ |
---|
| 237 | rtems_device_driver |
---|
[923dd7a] | 238 | console_close( |
---|
| 239 | rtems_device_major_number major, |
---|
| 240 | rtems_device_minor_number minor, |
---|
| 241 | void *arg |
---|
| 242 | ) |
---|
[ba46ffa6] | 243 | { |
---|
| 244 | rtems_device_driver res = RTEMS_SUCCESSFUL; |
---|
| 245 | |
---|
| 246 | res = rtems_termios_close (arg); |
---|
[6128a4a] | 247 | |
---|
[ba46ffa6] | 248 | return res; |
---|
| 249 | } /* console_close */ |
---|
| 250 | |
---|
| 251 | /*-------------------------------------------------------------------------+ |
---|
| 252 | | Console device driver READ entry point. |
---|
| 253 | +--------------------------------------------------------------------------+ |
---|
| 254 | | Read characters from the I/O console. We only have stdin. |
---|
| 255 | +--------------------------------------------------------------------------*/ |
---|
[923dd7a] | 256 | rtems_device_driver console_read( |
---|
| 257 | rtems_device_major_number major, |
---|
| 258 | rtems_device_minor_number minor, |
---|
| 259 | void *arg |
---|
| 260 | ) |
---|
[ba46ffa6] | 261 | { |
---|
| 262 | return rtems_termios_read (arg); |
---|
| 263 | } /* console_read */ |
---|
[6128a4a] | 264 | |
---|
[ba46ffa6] | 265 | /*-------------------------------------------------------------------------+ |
---|
| 266 | | Console device driver WRITE entry point. |
---|
| 267 | +--------------------------------------------------------------------------+ |
---|
| 268 | | Write characters to the I/O console. Stderr and stdout are the same. |
---|
| 269 | +--------------------------------------------------------------------------*/ |
---|
[923dd7a] | 270 | rtems_device_driver console_write( |
---|
| 271 | rtems_device_major_number major, |
---|
| 272 | rtems_device_minor_number minor, |
---|
| 273 | void *arg |
---|
| 274 | ) |
---|
[ba46ffa6] | 275 | { |
---|
| 276 | return rtems_termios_write (arg); |
---|
| 277 | } /* console_write */ |
---|
| 278 | |
---|
| 279 | /* |
---|
| 280 | * Handle ioctl request. |
---|
| 281 | */ |
---|
[923dd7a] | 282 | rtems_device_driver console_control( |
---|
| 283 | rtems_device_major_number major, |
---|
| 284 | rtems_device_minor_number minor, |
---|
| 285 | void *arg |
---|
| 286 | ) |
---|
[6128a4a] | 287 | { |
---|
[4f3e4f33] | 288 | /* does the BSP support break callbacks ? */ |
---|
| 289 | #if defined(BIOCSETBREAKCB) && defined(BIOCGETBREAKCB) |
---|
[923dd7a] | 290 | rtems_libio_ioctl_args_t *ioa=arg; |
---|
| 291 | switch (ioa->command) { |
---|
| 292 | case BIOCSETBREAKCB: return BSP_uart_set_break_cb(minor, ioa); |
---|
| 293 | case BIOCGETBREAKCB: return BSP_uart_get_break_cb(minor, ioa); |
---|
| 294 | default: break; |
---|
| 295 | } |
---|
[4f3e4f33] | 296 | #endif |
---|
[ba46ffa6] | 297 | return rtems_termios_ioctl (arg); |
---|
| 298 | } |
---|
| 299 | |
---|
[923dd7a] | 300 | static int conSetAttr( |
---|
| 301 | int minor, |
---|
| 302 | const struct termios *t |
---|
| 303 | ) |
---|
[ba46ffa6] | 304 | { |
---|
[b0484c1] | 305 | rtems_termios_baud_t baud; |
---|
[ba46ffa6] | 306 | |
---|
[b0484c1] | 307 | baud = rtems_termios_baud_to_number(t->c_cflag & CBAUD); |
---|
[923dd7a] | 308 | if ( baud > 115200 ) |
---|
| 309 | rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR); |
---|
[ba46ffa6] | 310 | |
---|
[69ed59f] | 311 | BSP_uart_set_baud(minor, baud); |
---|
[ba46ffa6] | 312 | |
---|
| 313 | return 0; |
---|
| 314 | } |
---|