1 | /*-------------------------------------------------------------------------+ |
---|
2 | | console.c v1.1 - i386ex BSP - 1997/08/07 |
---|
3 | +--------------------------------------------------------------------------+ |
---|
4 | | This file contains the i386ex console I/O package. It is just a termios |
---|
5 | | wrapper. |
---|
6 | +--------------------------------------------------------------------------+ |
---|
7 | | (C) Copyright 1997 - |
---|
8 | | - NavIST Group - Real-Time Distributed Systems and Industrial Automation |
---|
9 | | |
---|
10 | | http://pandora.ist.utl.pt |
---|
11 | | |
---|
12 | | Instituto Superior Tecnico * Lisboa * PORTUGAL |
---|
13 | +--------------------------------------------------------------------------+ |
---|
14 | | Disclaimer: |
---|
15 | | |
---|
16 | | This file is provided "AS IS" without warranty of any kind, either |
---|
17 | | expressed or implied. |
---|
18 | +--------------------------------------------------------------------------+ |
---|
19 | | This code is based on: |
---|
20 | | console.c,v 1.4 1995/12/19 20:07:23 joel Exp - go32 BSP |
---|
21 | | console.c,v 1.15 pc386 BSP |
---|
22 | | With the following copyright notice: |
---|
23 | | ************************************************************************** |
---|
24 | | * COPYRIGHT (c) 1989-1999. |
---|
25 | | * On-Line Applications Research Corporation (OAR). |
---|
26 | | * |
---|
27 | | * The license and distribution terms for this file may be |
---|
28 | | * found in found in the file LICENSE in this distribution or at |
---|
29 | | * http://www.rtems.com/license/LICENSE. |
---|
30 | | ************************************************************************** |
---|
31 | | |
---|
32 | | $Id$ |
---|
33 | +--------------------------------------------------------------------------*/ |
---|
34 | |
---|
35 | #include <stdio.h> |
---|
36 | #include <stdlib.h> |
---|
37 | #include <assert.h> |
---|
38 | #include <rtems/error.h> |
---|
39 | |
---|
40 | #include <bsp.h> |
---|
41 | #include <irq.h> |
---|
42 | #include <rtems/libio.h> |
---|
43 | #include <termios.h> |
---|
44 | #include <uart.h> |
---|
45 | #include <libcpu/cpuModel.h> |
---|
46 | |
---|
47 | /* |
---|
48 | * Possible value for console input/output : |
---|
49 | * BSP_UART_COM1 |
---|
50 | * BSP_UART_COM2 |
---|
51 | * BSP_CONSOLE_PORT_CONSOLE is not valid in this BSP. |
---|
52 | * All references to either keyboard or video handling have been removed. |
---|
53 | */ |
---|
54 | |
---|
55 | int BSPConsolePort = BSP_UART_COM2; |
---|
56 | int BSPBaseBaud = 115200; |
---|
57 | int BSP_poll_read(int); |
---|
58 | |
---|
59 | extern BSP_polling_getchar_function_type BSP_poll_char; |
---|
60 | |
---|
61 | static int conSetAttr(int minor, const struct termios *); |
---|
62 | static void isr_on(const rtems_irq_connect_data *); |
---|
63 | static void isr_off(const rtems_irq_connect_data *); |
---|
64 | static int isr_is_on(const rtems_irq_connect_data *); |
---|
65 | |
---|
66 | /* |
---|
67 | * Change references to com2 if required. |
---|
68 | */ |
---|
69 | |
---|
70 | static rtems_irq_connect_data console_isr_data = |
---|
71 | { BSP_UART_COM2_IRQ, |
---|
72 | BSP_uart_termios_isr_com2, |
---|
73 | isr_on, |
---|
74 | isr_off, |
---|
75 | isr_is_on}; |
---|
76 | |
---|
77 | static void |
---|
78 | isr_on(const rtems_irq_connect_data *unused) |
---|
79 | { |
---|
80 | return; |
---|
81 | } |
---|
82 | |
---|
83 | static void |
---|
84 | isr_off(const rtems_irq_connect_data *unused) |
---|
85 | { |
---|
86 | return; |
---|
87 | } |
---|
88 | |
---|
89 | static int |
---|
90 | isr_is_on(const rtems_irq_connect_data *irq) |
---|
91 | { |
---|
92 | return BSP_irq_enabled_at_i8259s(irq->name); |
---|
93 | } |
---|
94 | |
---|
95 | /*-------------------------------------------------------------------------+ |
---|
96 | | Console device driver INITIALIZE entry point. |
---|
97 | +--------------------------------------------------------------------------+ |
---|
98 | | Initilizes the I/O console (keyboard + VGA display) driver. |
---|
99 | +--------------------------------------------------------------------------*/ |
---|
100 | rtems_device_driver |
---|
101 | console_initialize(rtems_device_major_number major, |
---|
102 | rtems_device_minor_number minor, |
---|
103 | void *arg) |
---|
104 | { |
---|
105 | rtems_status_code status; |
---|
106 | |
---|
107 | /* |
---|
108 | * Set up TERMIOS |
---|
109 | */ |
---|
110 | rtems_termios_initialize (); |
---|
111 | |
---|
112 | /* |
---|
113 | * Do device-specific initialization |
---|
114 | */ |
---|
115 | |
---|
116 | /* 115200-8-N-1, without hardware flow control */ |
---|
117 | BSP_uart_init(BSPConsolePort, 115200, CHR_8_BITS, 0, 0, 0); |
---|
118 | |
---|
119 | /* Set interrupt handler */ |
---|
120 | if(BSPConsolePort == BSP_UART_COM1) |
---|
121 | { |
---|
122 | console_isr_data.name = BSP_UART_COM1_IRQ; |
---|
123 | console_isr_data.hdl = BSP_uart_termios_isr_com1; |
---|
124 | |
---|
125 | } |
---|
126 | else |
---|
127 | { |
---|
128 | assert(BSPConsolePort == BSP_UART_COM2); |
---|
129 | console_isr_data.name = BSP_UART_COM2_IRQ; |
---|
130 | console_isr_data.hdl = BSP_uart_termios_isr_com2; |
---|
131 | } |
---|
132 | |
---|
133 | status = BSP_install_rtems_irq_handler(&console_isr_data); |
---|
134 | |
---|
135 | if (!status){ |
---|
136 | printk("Error installing serial console interrupt handler!\n"); |
---|
137 | rtems_fatal_error_occurred(status); |
---|
138 | } |
---|
139 | /* |
---|
140 | * Register the device |
---|
141 | */ |
---|
142 | status = rtems_io_register_name ("/dev/console", major, 0); |
---|
143 | if (status != RTEMS_SUCCESSFUL) |
---|
144 | { |
---|
145 | printk("Error registering console device!\n"); |
---|
146 | rtems_fatal_error_occurred (status); |
---|
147 | } |
---|
148 | |
---|
149 | if(BSPConsolePort == BSP_UART_COM1) |
---|
150 | { |
---|
151 | printk("Initialized console on port COM1 115200-8-N-1\n\n"); |
---|
152 | } |
---|
153 | else |
---|
154 | { |
---|
155 | printk("Initialized console on port COM2 115200-8-N-1\n\n"); |
---|
156 | } |
---|
157 | |
---|
158 | return RTEMS_SUCCESSFUL; |
---|
159 | } /* console_initialize */ |
---|
160 | |
---|
161 | |
---|
162 | static int console_last_close(int major, int minor, void *arg) |
---|
163 | { |
---|
164 | BSP_remove_rtems_irq_handler (&console_isr_data); |
---|
165 | |
---|
166 | return 0; |
---|
167 | } |
---|
168 | |
---|
169 | /*-------------------------------------------------------------------------+ |
---|
170 | | Console device driver OPEN entry point |
---|
171 | +--------------------------------------------------------------------------*/ |
---|
172 | rtems_device_driver |
---|
173 | console_open(rtems_device_major_number major, |
---|
174 | rtems_device_minor_number minor, |
---|
175 | void *arg) |
---|
176 | { |
---|
177 | rtems_status_code status; |
---|
178 | static rtems_termios_callbacks cb = |
---|
179 | { |
---|
180 | NULL, /* firstOpen */ |
---|
181 | console_last_close, /* lastClose */ |
---|
182 | NULL, /* poll read */ |
---|
183 | BSP_uart_termios_write_com1, /* write */ |
---|
184 | conSetAttr, /* setAttributes */ |
---|
185 | NULL, /* stopRemoteTx */ |
---|
186 | NULL, /* startRemoteTx */ |
---|
187 | 1 /* outputUsesInterrupts */ |
---|
188 | }; |
---|
189 | |
---|
190 | if(BSPConsolePort == BSP_UART_COM2) |
---|
191 | { |
---|
192 | cb.write = BSP_uart_termios_write_com2; |
---|
193 | } |
---|
194 | |
---|
195 | status = rtems_termios_open (major, minor, arg, &cb); |
---|
196 | |
---|
197 | if(status != RTEMS_SUCCESSFUL) |
---|
198 | { |
---|
199 | printk("Error openning console device\n"); |
---|
200 | return status; |
---|
201 | } |
---|
202 | |
---|
203 | /* |
---|
204 | * Pass data area info down to driver |
---|
205 | */ |
---|
206 | BSP_uart_termios_set(BSPConsolePort, |
---|
207 | ((rtems_libio_open_close_args_t *)arg)->iop->data1); |
---|
208 | |
---|
209 | /* Enable interrupts on channel */ |
---|
210 | BSP_uart_intr_ctrl(BSPConsolePort, BSP_UART_INTR_CTRL_TERMIOS); |
---|
211 | |
---|
212 | return RTEMS_SUCCESSFUL; |
---|
213 | } |
---|
214 | |
---|
215 | /*-------------------------------------------------------------------------+ |
---|
216 | | Console device driver CLOSE entry point |
---|
217 | +--------------------------------------------------------------------------*/ |
---|
218 | rtems_device_driver |
---|
219 | console_close(rtems_device_major_number major, |
---|
220 | rtems_device_minor_number minor, |
---|
221 | void *arg) |
---|
222 | { |
---|
223 | |
---|
224 | return (rtems_termios_close (arg)); |
---|
225 | |
---|
226 | } /* console_close */ |
---|
227 | |
---|
228 | |
---|
229 | /*-------------------------------------------------------------------------+ |
---|
230 | | Console device driver READ entry point. |
---|
231 | +--------------------------------------------------------------------------+ |
---|
232 | | Read characters from the I/O console. We only have stdin. |
---|
233 | +--------------------------------------------------------------------------*/ |
---|
234 | rtems_device_driver |
---|
235 | console_read(rtems_device_major_number major, |
---|
236 | rtems_device_minor_number minor, |
---|
237 | void *arg) |
---|
238 | { |
---|
239 | rtems_status_code sc; |
---|
240 | |
---|
241 | sc = rtems_termios_read (arg); |
---|
242 | |
---|
243 | if ( sc != RTEMS_SUCCESSFUL ) |
---|
244 | printk("console_read: fails %s\n",rtems_status_text(sc)); |
---|
245 | |
---|
246 | return sc; |
---|
247 | |
---|
248 | } /* console_read */ |
---|
249 | |
---|
250 | |
---|
251 | /*-------------------------------------------------------------------------+ |
---|
252 | | Console device driver WRITE entry point. |
---|
253 | +--------------------------------------------------------------------------+ |
---|
254 | | Write characters to the I/O console. Stderr and stdout are the same. |
---|
255 | +--------------------------------------------------------------------------*/ |
---|
256 | rtems_device_driver |
---|
257 | console_write(rtems_device_major_number major, |
---|
258 | rtems_device_minor_number minor, |
---|
259 | void * arg) |
---|
260 | { |
---|
261 | return rtems_termios_write (arg); |
---|
262 | |
---|
263 | } /* console_write */ |
---|
264 | |
---|
265 | |
---|
266 | |
---|
267 | /* |
---|
268 | * Handle ioctl request. |
---|
269 | */ |
---|
270 | rtems_device_driver |
---|
271 | console_control(rtems_device_major_number major, |
---|
272 | rtems_device_minor_number minor, |
---|
273 | void * arg |
---|
274 | ) |
---|
275 | { |
---|
276 | return rtems_termios_ioctl (arg); |
---|
277 | } |
---|
278 | |
---|
279 | static int |
---|
280 | conSetAttr(int minor, const struct termios *t) |
---|
281 | { |
---|
282 | int baud; |
---|
283 | |
---|
284 | switch (t->c_cflag & CBAUD) |
---|
285 | { |
---|
286 | case B50: |
---|
287 | baud = 50; |
---|
288 | break; |
---|
289 | case B75: |
---|
290 | baud = 75; |
---|
291 | break; |
---|
292 | case B110: |
---|
293 | baud = 110; |
---|
294 | break; |
---|
295 | case B134: |
---|
296 | baud = 134; |
---|
297 | break; |
---|
298 | case B150: |
---|
299 | baud = 150; |
---|
300 | break; |
---|
301 | case B200: |
---|
302 | baud = 200; |
---|
303 | break; |
---|
304 | case B300: |
---|
305 | baud = 300; |
---|
306 | break; |
---|
307 | case B600: |
---|
308 | baud = 600; |
---|
309 | break; |
---|
310 | case B1200: |
---|
311 | baud = 1200; |
---|
312 | break; |
---|
313 | case B1800: |
---|
314 | baud = 1800; |
---|
315 | break; |
---|
316 | case B2400: |
---|
317 | baud = 2400; |
---|
318 | break; |
---|
319 | case B4800: |
---|
320 | baud = 4800; |
---|
321 | break; |
---|
322 | case B9600: |
---|
323 | baud = 9600; |
---|
324 | break; |
---|
325 | case B19200: |
---|
326 | baud = 19200; |
---|
327 | break; |
---|
328 | case B38400: |
---|
329 | baud = 38400; |
---|
330 | break; |
---|
331 | case B57600: |
---|
332 | baud = 57600; |
---|
333 | break; |
---|
334 | case B115200: |
---|
335 | baud = 115200; |
---|
336 | break; |
---|
337 | default: |
---|
338 | baud = 0; |
---|
339 | rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR); |
---|
340 | return 0; |
---|
341 | } |
---|
342 | |
---|
343 | BSP_uart_set_baud(BSPConsolePort, baud); |
---|
344 | |
---|
345 | return 0; |
---|
346 | } |
---|
347 | |
---|
348 | /* |
---|
349 | * BSP initialization |
---|
350 | */ |
---|
351 | |
---|
352 | BSP_output_char_function_type BSP_output_char = |
---|
353 | (BSP_output_char_function_type) BSP_output_char_via_serial; |
---|
354 | |
---|
355 | BSP_polling_getchar_function_type BSP_poll_char = |
---|
356 | (BSP_polling_getchar_function_type) BSP_poll_char_via_serial; |
---|
357 | |
---|
358 | int BSP_poll_read(int ttyMinor){ |
---|
359 | |
---|
360 | return BSP_poll_char_via_serial(); |
---|
361 | } |
---|