lxdream 0.9.1| filename | test/ide.c |
| changeset | 185:6755a04c447f |
| next | 243:df1671d533bf |
| author | nkeynes |
| date | Fri Aug 18 09:32:32 2006 +0000 (17 years ago) |
| permissions | -rw-r--r-- |
| last change | Add code to check for memory-wraparound on the vertex buffer (it doesn't) Add in-theory support for re-init (doesn't do anything) Fix addresses of result and tilematrix |
| view | annotate | diff | log | raw |
1 #include <assert.h>
2 #include <stdlib.h>
3 #include "ide.h"
4 #include "lib.h"
6 #define IDE_BASE 0xA05F7000
8 #define IDE_ALTSTATUS IDE_BASE+0x018
9 #define IDE_UNKNOWN IDE_BASE+0x01C
10 #define IDE_DATA IDE_BASE+0x080 /* 16 bits */
11 #define IDE_FEATURE IDE_BASE+0x084
12 #define IDE_COUNT IDE_BASE+0x088
13 #define IDE_LBA0 IDE_BASE+0x08C
14 #define IDE_LBA1 IDE_BASE+0x090
15 #define IDE_LBA2 IDE_BASE+0x094
16 #define IDE_DEVICE IDE_BASE+0x098
17 #define IDE_COMMAND IDE_BASE+0x09C
18 #define IDE_ACTIVATE IDE_BASE+0x4E4
20 #define IDE_DEVCONTROL IDE_ALTSTATUS
21 #define IDE_ERROR IDE_FEATURE
22 #define IDE_STATUS IDE_COMMAND
24 #define IDE_DMA_ADDR IDE_BASE+0x404
25 #define IDE_DMA_SIZE IDE_BASE+0x408
26 #define IDE_DMA_DIR IDE_BASE+0x40C
27 #define IDE_DMA_CTL1 IDE_BASE+0x414
28 #define IDE_DMA_CTL2 IDE_BASE+0x418
29 #define IDE_DMA_MAGIC IDE_BASE+0x4B8
30 #define IDE_DMA_STATUS IDE_BASE+0x4F8
32 #define DMA_BASE 0xFFA00000
33 #define DMA_SAR1 DMA_BASE+0x010
34 #define DMA_DAR1 DMA_BASE+0x014
35 #define DMA_TCR1 DMA_BASE+0x018
36 #define DMA_CHCR1 DMA_BASE+0x01C
37 #define DMA_SAR2 DMA_BASE+0x020
38 #define DMA_DAR2 DMA_BASE+0x024
39 #define DMA_TCR2 DMA_BASE+0x028
40 #define DMA_CHCR2 DMA_BASE+0x02C
41 #define DMA_SAR3 DMA_BASE+0x030
42 #define DMA_DAR3 DMA_BASE+0x034
43 #define DMA_TCR3 DMA_BASE+0x038
44 #define DMA_CHCR3 DMA_BASE+0x03C
45 #define DMA_DMAOR DMA_BASE+0x040
46 #define QUEUECR0 0xFF000038
47 #define QUEUECR1 0xFF00003C
49 #define IDE_CMD_RESET 0x08
50 #define IDE_CMD_PACKET 0xA0
51 #define IDE_CMD_IDENTIFY_PACKET_DEVICE 0xA1
52 #define IDE_CMD_IDENTIFY_DEVICE 0xEC
54 #define MMC_CMD_GET_CONFIGURATION 0x46
55 #define GD_CMD_IDENTIFY 0x11 /* guessing */
58 #define IDE_DMA_MAGIC_VALUE 0x8843407F
61 #define MAX_WAIT 10000000
62 #define MAX_IRQ_WAIT 1000000000
64 /**
65 * Dump all ide registers to stdout.
66 */
67 void ide_dump_registers() {
68 int i,j;
69 printf( "IDE registers:\n");
70 printf( "Stats: %02X ", byte_read(IDE_ALTSTATUS) );
71 printf( "Error: %02X ", byte_read(IDE_ERROR) );
72 printf( "Count: %02X ", byte_read(IDE_COUNT) );
73 printf( "Dvice: %02X ", byte_read(IDE_DEVICE) );
74 if( long_read(ASIC_STATUS1)&1 ) {
75 printf( "INTRQ! " );
76 }
77 if( (long_read(ASIC_STATUS0)>>14)&1 ) {
78 printf( "DMARQ! " );
79 }
80 printf( "\nLBA 0: %02X ", byte_read(IDE_LBA0) );
81 printf( "LBA 1: %02X ", byte_read(IDE_LBA1) );
82 printf( "LBA 2: %02X ", byte_read(IDE_LBA2) );
83 printf( "0x01C: %02X\n", byte_read(IDE_UNKNOWN) );
84 printf( "DAddr: %08X ", long_read(IDE_DMA_ADDR) );
85 printf( "DSize: %08X ", long_read(IDE_DMA_SIZE) );
86 printf( "DDir : %08X ", long_read(IDE_DMA_DIR) );
87 printf( "DCtl1: %08X ", long_read(IDE_DMA_CTL1) );
88 printf( "DCtl2: %08X\n", long_read(IDE_DMA_CTL2) );
89 printf( "DStat: %08X\n", long_read(IDE_DMA_STATUS) );
90 printf( "ASIC: " );
91 for( i=0; i<12; i+=4 ) {
92 unsigned int val = long_read(ASIC_STATUS0+i);
93 for( j=0; j<32; j++ ) {
94 if( val & (1<<j) ) {
95 printf( "%d ", j );
96 }
97 }
98 printf( "| " );
99 }
100 printf( "\n" );
101 }
103 /**
104 * Wait for the IDE INTRQ line to go active (bit 0 of the second word)
105 * @return 0 on success, non-zero on timeout
106 */
107 int ide_wait_irq() {
108 unsigned int status;
109 int i;
110 for( i=0; i<MAX_WAIT; i++ ) {
111 status = long_read( ASIC_STATUS1 );
112 if( (status&1) != 0 )
113 return 0;
114 }
115 printf( "Timeout waiting for IDE INTRQ\n" );
116 ide_dump_registers();
117 return 1;
118 }
120 /**
121 * Wait for the IDE BSY flag to be de-asserted.
122 * @return 0 on success, non-zero on timeout
123 */
124 int ide_wait_ready() {
125 unsigned char status;
126 int i;
127 for( i=0; i<MAX_WAIT; i++ ) {
128 status = byte_read(IDE_ALTSTATUS);
129 if( (status & 0x80) != 0x80 )
130 return 0;
131 }
132 printf( "Timeout waiting for IDE to become ready\n" );
133 ide_dump_registers();
134 return 1;
135 }
137 int ide_wait_dma() {
138 unsigned int status;
139 int i;
140 for( i=0; i<MAX_WAIT; i++ ) {
141 status = long_read(IDE_DMA_CTL2);
142 if( (status & 1) == 0 )
143 return 0;
144 }
145 printf( "[IDE] Timeout waiting for DMA to become ready\n" );
146 return 1;
147 }
149 /**
150 * Write the command packet out to the interface.
151 * @param cmd 12 byte ATAPI command packet
152 * @param dma 1 = dma mode, 0 = pio mode
153 */
154 int ide_write_command_packet( char *cmd, int dma )
155 {
156 int i, status;
157 unsigned short *spkt = (unsigned short *)cmd;
158 unsigned short length = 8;
159 if( ide_wait_ready() )
160 return 1;
161 byte_write( IDE_FEATURE, dma );
162 byte_write( IDE_COUNT, 0 );
163 byte_write( IDE_LBA0, 0 );
164 byte_write( IDE_LBA1, (length&0xFF) );
165 byte_write( IDE_LBA2, (length>>8)&0xFF );
166 byte_write( IDE_DEVICE, 0 );
167 byte_write( IDE_COMMAND, IDE_CMD_PACKET );
168 status = byte_read(IDE_ALTSTATUS); /* delay 1 PIO cycle as per spec */
169 printf( "After writing PACKET command byte:\n" );
170 ide_dump_registers();
171 /* Wait until device is ready to accept command */
172 if( ide_wait_ready() )
173 return 1;
174 printf( "Device ready to receive packet:\n" );
175 ide_dump_registers();
177 /* Write the command */
178 for( i=0; i<6; i++ ) {
179 word_write( IDE_DATA, spkt[i] );
180 }
181 printf( "After writing command packet:\n" );
182 ide_dump_registers();
183 }
185 int ide_read_pio( char *buf, int buflen ) {
186 int i;
187 unsigned short *bufptr = (unsigned short *)buf;
188 unsigned int length = 0, avail;
189 int status;
191 while(1) {
192 if( ide_wait_ready() )
193 return -1;
194 status = byte_read( IDE_STATUS );
195 if( (status & 0xE9) == 0x48 ) {
196 /* Bytes available */
197 avail = (byte_read( IDE_LBA1 )) | (byte_read(IDE_LBA2)<<8);
198 for( i=0; i<avail; i+=2 ) {
199 if( buflen > 0 ) {
200 *bufptr++ = word_read(IDE_DATA);
201 buflen-=2;
202 }
203 }
204 length += avail;
205 if( avail == 0 ) {
206 /* Should never happen */
207 printf( "[IDE] Unexpected read length 0\n" );
208 return -1;
209 }
210 } else {
211 if( status&0x01 ) {
212 printf( "[IDE] ERROR! (%02X)\n", status );
213 } else if( (status&0x08) == 0 ) {
214 /* No more data */
215 return length;
216 } else {
217 printf( "[IDE] Unexpected status result: %02X\n", status );
218 return -1;
219 }
220 }
221 }
222 }
224 int ide_read_dma( char *buf, int buflen )
225 {
226 int status;
228 long_write( IDE_DMA_CTL1, 1 );
229 long_write( IDE_DMA_CTL2, 1 );
231 printf( "Started DMA\n" );
232 ide_dump_registers();
234 ide_wait_irq();
235 printf( "After IRQ\n" );
236 ide_dump_registers();
237 long_write( IDE_DMA_CTL1, 0 );
238 status = ide_wait_dma();
239 printf( "After DMA finished\n");
240 ide_dump_registers();
241 if( status != 0 ) {
242 return -1;
243 }
244 status = long_read(ASIC_STATUS0);
245 if( (status & (1<<14)) == 0 ) {
246 printf( "DMARQ cleared already\n");
247 } else {
248 /*
249 status &= ~(1<<14);
250 long_write(ASIC_STATUS0, status);
251 status = long_read(ASIC_STATUS0);
252 */
253 byte_read(IDE_STATUS );
254 if( (status & (1<<14)) == 0 ) {
255 printf( "DMARQ cleared successfully\n" );
256 } else {
257 printf( "DMARQ not cleared: %08X\n", long_read(ASIC_STATUS0) );
258 }
259 }
260 status = ide_wait_ready();
261 printf( "After IDE ready\n");
262 ide_dump_registers();
263 if( status != 0 ) {
264 return -1;
265 }
266 return long_read( IDE_DMA_STATUS );
267 }
269 int ide_do_packet_command_pio( char *cmd, char *buf, int length )
270 {
271 ide_write_command_packet( cmd, 0 );
272 length = ide_read_pio( buf, length );
273 return length;
274 }
276 int ide_do_packet_command_dma( char *cmd, char *buf, int length )
277 {
278 long_write( QUEUECR0, 0x10 );
279 long_write( QUEUECR1, 0x10 );
280 long_write( IDE_DMA_MAGIC, IDE_DMA_MAGIC_VALUE );
281 long_write( IDE_DMA_ADDR, (unsigned int)buf );
282 long_write( IDE_DMA_SIZE, length );
283 long_write( IDE_DMA_DIR, 1 );
284 ide_write_command_packet( cmd, 1 );
285 length = ide_read_dma( buf, length );
286 return length;
287 }
289 int ide_init()
290 {
291 if( ide_wait_ready() )
292 return -1;
294 /** Set Default PIO mode */
295 byte_write( IDE_FEATURE, 0x03 );
296 byte_write( IDE_COUNT, 0x0B );
297 byte_write( IDE_COMMAND, 0xEF );
299 if( ide_wait_ready() )
300 return -1;
302 /** Set Multi-word DMA mode 2 */
303 long_write( 0xA05F7490, 0x222 );
304 long_write( 0xA05F7494, 0x222 );
305 byte_write( IDE_FEATURE, 0x03 );
306 byte_write( IDE_COUNT, 0x22 );
307 byte_write( IDE_COMMAND, 0xEF );
308 if( ide_wait_ready() )
309 return -1;
311 word_write( 0xA05F7480, 0x400 );
312 long_write( 0xA05F7488, 0x200 );
313 long_write( 0xA05F748C, 0x200 );
314 long_write( 0xA05F74A0, 0x2001 );
315 long_write( 0xA05F74A4, 0x2001 );
316 long_write( 0xA05F74B4, 0x0001 );
317 }
319 int ide_sense_error( char *buf )
320 {
321 char cmd[12] = { 0x13,0,0,0, 10,0,0,0, 0,0,0,0 };
322 return ide_do_packet_command_pio( cmd, buf, 10 );
323 }
325 void ide_print_sense_error()
326 {
327 char buf[10];
328 if( ide_sense_error(buf) != 10 ) {
329 printf( "ERROR - Sense error failed!\n" );
330 return;
331 }
332 int major = buf[2] & 0xFF;
333 int minor = buf[8] & 0xFF;
334 printf( "[IDE] Error code %02X,%02X\n", major, minor );
335 }
337 int ide_test_ready()
338 {
339 char cmd[12] = { 0,0,0,0, 0,0,0,0, 0,0,0,0 };
340 int length = ide_do_packet_command_pio( cmd, NULL, 0 );
341 return length;
342 }
344 int ide_read_toc( char *buf, int length )
345 {
346 char cmd[12] = { 0x14,0,0,0, 0x98,0,0,0, 0,0,0,0 };
347 return ide_do_packet_command_pio( cmd, buf, length );
348 }
350 int ide_get_session( int session, struct gdrom_session *session_data )
351 {
352 char cmd[12] = {0x15, 0, session, 0, 6,0,0,0, 0,0,0,0 };
353 char buf[6];
354 int length = ide_do_packet_command_pio( cmd, buf, sizeof(buf) );
355 if( length < 0 )
356 return length;
357 if( length != 6 )
358 return -1;
359 assert(length == 6);
360 session_data->track = ((int)buf[2])&0xFF;
361 session_data->lba = (((int)buf[3])&0xFF) << 16 |
362 (((int)buf[4])&0xFF) << 8 |
363 (((int)buf[5])&0xFF);
364 return 0;
365 }
367 int ide_spinup( )
368 {
369 char cmd[12] = {0x70,0x1F,0,0, 0,0,0,0, 0,0,0,0};
370 int length = ide_do_packet_command_pio( cmd, NULL, 0 );
371 return length;
372 }
374 int ide_unknown71( char *buf, int length )
375 {
376 char cmd[12] = {0x71,0,0,0, 0,0,0,0, 0,0,0,0};
377 return ide_do_packet_command_pio( cmd, buf, length );
378 }
380 int ide_read_sector_pio( uint32_t sector, uint32_t count, int mode,
381 char *buf, int length )
382 {
383 char cmd[12] = { 0x30,0,0,0, 0,0,0,0, 0,0,0,0 };
385 cmd[1] = mode;
386 cmd[2] = (sector>>16)&0xFF;
387 cmd[3] = (sector>>8)&0xFF;
388 cmd[4] = sector&0xFF;
389 cmd[8] = (count>>16)&0xFF;
390 cmd[9] = (count>>8)&0xFF;
391 cmd[10] = count&0xFF;
392 return ide_do_packet_command_pio( cmd, buf, length );
393 }
396 int ide_read_sector_dma( uint32_t sector, uint32_t count, int mode,
397 char *buf, int length )
398 {
399 char cmd[12] = { 0x30,0,0,0, 0,0,0,0, 0,0,0,0 };
401 cmd[1] = mode;
402 cmd[2] = (sector>>16)&0xFF;
403 cmd[3] = (sector>>8)&0xFF;
404 cmd[4] = sector&0xFF;
405 cmd[8] = (count>>16)&0xFF;
406 cmd[9] = (count>>8)&0xFF;
407 cmd[10] = count&0xFF;
408 return ide_do_packet_command_dma( cmd, buf, length );
409 }
411 int ide_read_something( )
412 {
413 char cmd[12] = { 0x12,0,0,0, 0x0a,0,0,0, 0,0,0,0 };
414 char result[10];
415 ide_do_packet_command_pio( cmd, result, 10 );
416 debug_dump_buffer(result,10);
417 return 0;
418 }
.