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1 | /* mac_esp.c: ESP front-end for Macintosh Quadra systems. |
2 | * |
3 | * Adapted from jazz_esp.c and the old mac_esp.c. |
4 | * |
5 | * The pseudo DMA algorithm is based on the one used in NetBSD. |
6 | * See sys/arch/mac68k/obio/esp.c for some background information. |
7 | * |
8 | * Copyright (C) 2007-2008 Finn Thain |
9 | */ |
10 | |
11 | #include <linux/kernel.h> |
12 | #include <linux/types.h> |
13 | #include <linux/module.h> |
14 | #include <linux/init.h> |
15 | #include <linux/interrupt.h> |
16 | #include <linux/platform_device.h> |
17 | #include <linux/dma-mapping.h> |
18 | #include <linux/scatterlist.h> |
19 | #include <linux/delay.h> |
20 | #include <linux/io.h> |
21 | #include <linux/nubus.h> |
22 | #include <linux/slab.h> |
23 | |
24 | #include <asm/irq.h> |
25 | #include <asm/dma.h> |
26 | #include <asm/macints.h> |
27 | #include <asm/macintosh.h> |
28 | #include <asm/mac_via.h> |
29 | |
30 | #include <scsi/scsi_host.h> |
31 | |
32 | #include "esp_scsi.h" |
33 | |
34 | #define DRV_MODULE_NAME "mac_esp" |
35 | #define PFX DRV_MODULE_NAME ": " |
36 | #define DRV_VERSION "1.000" |
37 | #define DRV_MODULE_RELDATE "Sept 15, 2007" |
38 | |
39 | #define MAC_ESP_IO_BASE 0x50F00000 |
40 | #define MAC_ESP_REGS_QUADRA (MAC_ESP_IO_BASE + 0x10000) |
41 | #define MAC_ESP_REGS_QUADRA2 (MAC_ESP_IO_BASE + 0xF000) |
42 | #define MAC_ESP_REGS_QUADRA3 (MAC_ESP_IO_BASE + 0x18000) |
43 | #define MAC_ESP_REGS_SPACING 0x402 |
44 | #define MAC_ESP_PDMA_REG 0xF9800024 |
45 | #define MAC_ESP_PDMA_REG_SPACING 0x4 |
46 | #define MAC_ESP_PDMA_IO_OFFSET 0x100 |
47 | |
48 | #define esp_read8(REG) mac_esp_read8(esp, REG) |
49 | #define esp_write8(VAL, REG) mac_esp_write8(esp, VAL, REG) |
50 | |
51 | struct mac_esp_priv { |
52 | struct esp *esp; |
53 | void __iomem *pdma_regs; |
54 | void __iomem *pdma_io; |
55 | int error; |
56 | }; |
57 | static struct esp *esp_chips[2]; |
58 | |
59 | #define MAC_ESP_GET_PRIV(esp) ((struct mac_esp_priv *) \ |
60 | platform_get_drvdata((struct platform_device *) \ |
61 | (esp->dev))) |
62 | |
63 | static inline void mac_esp_write8(struct esp *esp, u8 val, unsigned long reg) |
64 | { |
65 | nubus_writeb(val, esp->regs + reg * 16); |
66 | } |
67 | |
68 | static inline u8 mac_esp_read8(struct esp *esp, unsigned long reg) |
69 | { |
70 | return nubus_readb(esp->regs + reg * 16); |
71 | } |
72 | |
73 | /* For pseudo DMA and PIO we need the virtual address |
74 | * so this address mapping is the identity mapping. |
75 | */ |
76 | |
77 | static dma_addr_t mac_esp_map_single(struct esp *esp, void *buf, |
78 | size_t sz, int dir) |
79 | { |
80 | return (dma_addr_t)buf; |
81 | } |
82 | |
83 | static int mac_esp_map_sg(struct esp *esp, struct scatterlist *sg, |
84 | int num_sg, int dir) |
85 | { |
86 | int i; |
87 | |
88 | for (i = 0; i < num_sg; i++) |
89 | sg[i].dma_address = (u32)sg_virt(&sg[i]); |
90 | return num_sg; |
91 | } |
92 | |
93 | static void mac_esp_unmap_single(struct esp *esp, dma_addr_t addr, |
94 | size_t sz, int dir) |
95 | { |
96 | /* Nothing to do. */ |
97 | } |
98 | |
99 | static void mac_esp_unmap_sg(struct esp *esp, struct scatterlist *sg, |
100 | int num_sg, int dir) |
101 | { |
102 | /* Nothing to do. */ |
103 | } |
104 | |
105 | static void mac_esp_reset_dma(struct esp *esp) |
106 | { |
107 | /* Nothing to do. */ |
108 | } |
109 | |
110 | static void mac_esp_dma_drain(struct esp *esp) |
111 | { |
112 | /* Nothing to do. */ |
113 | } |
114 | |
115 | static void mac_esp_dma_invalidate(struct esp *esp) |
116 | { |
117 | /* Nothing to do. */ |
118 | } |
119 | |
120 | static int mac_esp_dma_error(struct esp *esp) |
121 | { |
122 | return MAC_ESP_GET_PRIV(esp)->error; |
123 | } |
124 | |
125 | static inline int mac_esp_wait_for_empty_fifo(struct esp *esp) |
126 | { |
127 | struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); |
128 | int i = 500000; |
129 | |
130 | do { |
131 | if (!(esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES)) |
132 | return 0; |
133 | |
134 | if (esp_read8(ESP_STATUS) & ESP_STAT_INTR) |
135 | return 1; |
136 | |
137 | udelay(2); |
138 | } while (--i); |
139 | |
140 | printk(KERN_ERR PFX "FIFO is not empty (sreg %02x)\n", |
141 | esp_read8(ESP_STATUS)); |
142 | mep->error = 1; |
143 | return 1; |
144 | } |
145 | |
146 | static inline int mac_esp_wait_for_dreq(struct esp *esp) |
147 | { |
148 | struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); |
149 | int i = 500000; |
150 | |
151 | do { |
152 | if (mep->pdma_regs == NULL) { |
153 | if (via2_scsi_drq_pending()) |
154 | return 0; |
155 | } else { |
156 | if (nubus_readl(mep->pdma_regs) & 0x200) |
157 | return 0; |
158 | } |
159 | |
160 | if (esp_read8(ESP_STATUS) & ESP_STAT_INTR) |
161 | return 1; |
162 | |
163 | udelay(2); |
164 | } while (--i); |
165 | |
166 | printk(KERN_ERR PFX "PDMA timeout (sreg %02x)\n", |
167 | esp_read8(ESP_STATUS)); |
168 | mep->error = 1; |
169 | return 1; |
170 | } |
171 | |
172 | #define MAC_ESP_PDMA_LOOP(operands) \ |
173 | asm volatile ( \ |
174 | " tstw %1 \n" \ |
175 | " jbeq 20f \n" \ |
176 | "1: movew " operands " \n" \ |
177 | "2: movew " operands " \n" \ |
178 | "3: movew " operands " \n" \ |
179 | "4: movew " operands " \n" \ |
180 | "5: movew " operands " \n" \ |
181 | "6: movew " operands " \n" \ |
182 | "7: movew " operands " \n" \ |
183 | "8: movew " operands " \n" \ |
184 | "9: movew " operands " \n" \ |
185 | "10: movew " operands " \n" \ |
186 | "11: movew " operands " \n" \ |
187 | "12: movew " operands " \n" \ |
188 | "13: movew " operands " \n" \ |
189 | "14: movew " operands " \n" \ |
190 | "15: movew " operands " \n" \ |
191 | "16: movew " operands " \n" \ |
192 | " subqw #1,%1 \n" \ |
193 | " jbne 1b \n" \ |
194 | "20: tstw %2 \n" \ |
195 | " jbeq 30f \n" \ |
196 | "21: movew " operands " \n" \ |
197 | " subqw #1,%2 \n" \ |
198 | " jbne 21b \n" \ |
199 | "30: tstw %3 \n" \ |
200 | " jbeq 40f \n" \ |
201 | "31: moveb " operands " \n" \ |
202 | "32: nop \n" \ |
203 | "40: \n" \ |
204 | " \n" \ |
205 | " .section __ex_table,\"a\" \n" \ |
206 | " .align 4 \n" \ |
207 | " .long 1b,40b \n" \ |
208 | " .long 2b,40b \n" \ |
209 | " .long 3b,40b \n" \ |
210 | " .long 4b,40b \n" \ |
211 | " .long 5b,40b \n" \ |
212 | " .long 6b,40b \n" \ |
213 | " .long 7b,40b \n" \ |
214 | " .long 8b,40b \n" \ |
215 | " .long 9b,40b \n" \ |
216 | " .long 10b,40b \n" \ |
217 | " .long 11b,40b \n" \ |
218 | " .long 12b,40b \n" \ |
219 | " .long 13b,40b \n" \ |
220 | " .long 14b,40b \n" \ |
221 | " .long 15b,40b \n" \ |
222 | " .long 16b,40b \n" \ |
223 | " .long 21b,40b \n" \ |
224 | " .long 31b,40b \n" \ |
225 | " .long 32b,40b \n" \ |
226 | " .previous \n" \ |
227 | : "+a" (addr), "+r" (count32), "+r" (count2) \ |
228 | : "g" (count1), "a" (mep->pdma_io)) |
229 | |
230 | static void mac_esp_send_pdma_cmd(struct esp *esp, u32 addr, u32 esp_count, |
231 | u32 dma_count, int write, u8 cmd) |
232 | { |
233 | struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); |
234 | |
235 | mep->error = 0; |
236 | |
237 | if (!write) |
238 | scsi_esp_cmd(esp, ESP_CMD_FLUSH); |
239 | |
240 | esp_write8((esp_count >> 0) & 0xFF, ESP_TCLOW); |
241 | esp_write8((esp_count >> 8) & 0xFF, ESP_TCMED); |
242 | |
243 | scsi_esp_cmd(esp, cmd); |
244 | |
245 | do { |
246 | unsigned int count32 = esp_count >> 5; |
247 | unsigned int count2 = (esp_count & 0x1F) >> 1; |
248 | unsigned int count1 = esp_count & 1; |
249 | unsigned int start_addr = addr; |
250 | |
251 | if (mac_esp_wait_for_dreq(esp)) |
252 | break; |
253 | |
254 | if (write) { |
255 | MAC_ESP_PDMA_LOOP("%4@,%0@+"); |
256 | |
257 | esp_count -= addr - start_addr; |
258 | } else { |
259 | unsigned int n; |
260 | |
261 | MAC_ESP_PDMA_LOOP("%0@+,%4@"); |
262 | |
263 | if (mac_esp_wait_for_empty_fifo(esp)) |
264 | break; |
265 | |
266 | n = (esp_read8(ESP_TCMED) << 8) + esp_read8(ESP_TCLOW); |
267 | addr = start_addr + esp_count - n; |
268 | esp_count = n; |
269 | } |
270 | } while (esp_count); |
271 | } |
272 | |
273 | /* |
274 | * Programmed IO routines follow. |
275 | */ |
276 | |
277 | static inline unsigned int mac_esp_wait_for_fifo(struct esp *esp) |
278 | { |
279 | int i = 500000; |
280 | |
281 | do { |
282 | unsigned int fbytes = esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES; |
283 | |
284 | if (fbytes) |
285 | return fbytes; |
286 | |
287 | udelay(2); |
288 | } while (--i); |
289 | |
290 | printk(KERN_ERR PFX "FIFO is empty (sreg %02x)\n", |
291 | esp_read8(ESP_STATUS)); |
292 | return 0; |
293 | } |
294 | |
295 | static inline int mac_esp_wait_for_intr(struct esp *esp) |
296 | { |
297 | struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); |
298 | int i = 500000; |
299 | |
300 | do { |
301 | esp->sreg = esp_read8(ESP_STATUS); |
302 | if (esp->sreg & ESP_STAT_INTR) |
303 | return 0; |
304 | |
305 | udelay(2); |
306 | } while (--i); |
307 | |
308 | printk(KERN_ERR PFX "IRQ timeout (sreg %02x)\n", esp->sreg); |
309 | mep->error = 1; |
310 | return 1; |
311 | } |
312 | |
313 | #define MAC_ESP_PIO_LOOP(operands, reg1) \ |
314 | asm volatile ( \ |
315 | "1: moveb " operands " \n" \ |
316 | " subqw #1,%1 \n" \ |
317 | " jbne 1b \n" \ |
318 | : "+a" (addr), "+r" (reg1) \ |
319 | : "a" (fifo)) |
320 | |
321 | #define MAC_ESP_PIO_FILL(operands, reg1) \ |
322 | asm volatile ( \ |
323 | " moveb " operands " \n" \ |
324 | " moveb " operands " \n" \ |
325 | " moveb " operands " \n" \ |
326 | " moveb " operands " \n" \ |
327 | " moveb " operands " \n" \ |
328 | " moveb " operands " \n" \ |
329 | " moveb " operands " \n" \ |
330 | " moveb " operands " \n" \ |
331 | " moveb " operands " \n" \ |
332 | " moveb " operands " \n" \ |
333 | " moveb " operands " \n" \ |
334 | " moveb " operands " \n" \ |
335 | " moveb " operands " \n" \ |
336 | " moveb " operands " \n" \ |
337 | " moveb " operands " \n" \ |
338 | " moveb " operands " \n" \ |
339 | " subqw #8,%1 \n" \ |
340 | " subqw #8,%1 \n" \ |
341 | : "+a" (addr), "+r" (reg1) \ |
342 | : "a" (fifo)) |
343 | |
344 | #define MAC_ESP_FIFO_SIZE 16 |
345 | |
346 | static void mac_esp_send_pio_cmd(struct esp *esp, u32 addr, u32 esp_count, |
347 | u32 dma_count, int write, u8 cmd) |
348 | { |
349 | struct mac_esp_priv *mep = MAC_ESP_GET_PRIV(esp); |
350 | u8 *fifo = esp->regs + ESP_FDATA * 16; |
351 | |
352 | cmd &= ~ESP_CMD_DMA; |
353 | mep->error = 0; |
354 | |
355 | if (write) { |
356 | scsi_esp_cmd(esp, cmd); |
357 | |
358 | while (1) { |
359 | unsigned int n; |
360 | |
361 | n = mac_esp_wait_for_fifo(esp); |
362 | if (!n) |
363 | break; |
364 | |
365 | if (n > esp_count) |
366 | n = esp_count; |
367 | esp_count -= n; |
368 | |
369 | MAC_ESP_PIO_LOOP("%2@,%0@+", n); |
370 | |
371 | if (!esp_count) |
372 | break; |
373 | |
374 | if (mac_esp_wait_for_intr(esp)) |
375 | break; |
376 | |
377 | if (((esp->sreg & ESP_STAT_PMASK) != ESP_DIP) && |
378 | ((esp->sreg & ESP_STAT_PMASK) != ESP_MIP)) |
379 | break; |
380 | |
381 | esp->ireg = esp_read8(ESP_INTRPT); |
382 | if ((esp->ireg & (ESP_INTR_DC | ESP_INTR_BSERV)) != |
383 | ESP_INTR_BSERV) |
384 | break; |
385 | |
386 | scsi_esp_cmd(esp, ESP_CMD_TI); |
387 | } |
388 | } else { |
389 | scsi_esp_cmd(esp, ESP_CMD_FLUSH); |
390 | |
391 | if (esp_count >= MAC_ESP_FIFO_SIZE) |
392 | MAC_ESP_PIO_FILL("%0@+,%2@", esp_count); |
393 | else |
394 | MAC_ESP_PIO_LOOP("%0@+,%2@", esp_count); |
395 | |
396 | scsi_esp_cmd(esp, cmd); |
397 | |
398 | while (esp_count) { |
399 | unsigned int n; |
400 | |
401 | if (mac_esp_wait_for_intr(esp)) |
402 | break; |
403 | |
404 | if (((esp->sreg & ESP_STAT_PMASK) != ESP_DOP) && |
405 | ((esp->sreg & ESP_STAT_PMASK) != ESP_MOP)) |
406 | break; |
407 | |
408 | esp->ireg = esp_read8(ESP_INTRPT); |
409 | if ((esp->ireg & (ESP_INTR_DC | ESP_INTR_BSERV)) != |
410 | ESP_INTR_BSERV) |
411 | break; |
412 | |
413 | n = MAC_ESP_FIFO_SIZE - |
414 | (esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES); |
415 | if (n > esp_count) |
416 | n = esp_count; |
417 | |
418 | if (n == MAC_ESP_FIFO_SIZE) { |
419 | MAC_ESP_PIO_FILL("%0@+,%2@", esp_count); |
420 | } else { |
421 | esp_count -= n; |
422 | MAC_ESP_PIO_LOOP("%0@+,%2@", n); |
423 | } |
424 | |
425 | scsi_esp_cmd(esp, ESP_CMD_TI); |
426 | } |
427 | } |
428 | } |
429 | |
430 | static int mac_esp_irq_pending(struct esp *esp) |
431 | { |
432 | if (esp_read8(ESP_STATUS) & ESP_STAT_INTR) |
433 | return 1; |
434 | return 0; |
435 | } |
436 | |
437 | static u32 mac_esp_dma_length_limit(struct esp *esp, u32 dma_addr, u32 dma_len) |
438 | { |
439 | return dma_len > 0xFFFF ? 0xFFFF : dma_len; |
440 | } |
441 | |
442 | static irqreturn_t mac_scsi_esp_intr(int irq, void *dev_id) |
443 | { |
444 | int got_intr; |
445 | |
446 | /* |
447 | * This is an edge triggered IRQ, so we have to be careful to |
448 | * avoid missing a transition when it is shared by two ESP devices. |
449 | */ |
450 | |
451 | do { |
452 | got_intr = 0; |
453 | if (esp_chips[0] && |
454 | (mac_esp_read8(esp_chips[0], ESP_STATUS) & ESP_STAT_INTR)) { |
455 | (void)scsi_esp_intr(irq, esp_chips[0]); |
456 | got_intr = 1; |
457 | } |
458 | if (esp_chips[1] && |
459 | (mac_esp_read8(esp_chips[1], ESP_STATUS) & ESP_STAT_INTR)) { |
460 | (void)scsi_esp_intr(irq, esp_chips[1]); |
461 | got_intr = 1; |
462 | } |
463 | } while (got_intr); |
464 | |
465 | return IRQ_HANDLED; |
466 | } |
467 | |
468 | static struct esp_driver_ops mac_esp_ops = { |
469 | .esp_write8 = mac_esp_write8, |
470 | .esp_read8 = mac_esp_read8, |
471 | .map_single = mac_esp_map_single, |
472 | .map_sg = mac_esp_map_sg, |
473 | .unmap_single = mac_esp_unmap_single, |
474 | .unmap_sg = mac_esp_unmap_sg, |
475 | .irq_pending = mac_esp_irq_pending, |
476 | .dma_length_limit = mac_esp_dma_length_limit, |
477 | .reset_dma = mac_esp_reset_dma, |
478 | .dma_drain = mac_esp_dma_drain, |
479 | .dma_invalidate = mac_esp_dma_invalidate, |
480 | .send_dma_cmd = mac_esp_send_pdma_cmd, |
481 | .dma_error = mac_esp_dma_error, |
482 | }; |
483 | |
484 | static int esp_mac_probe(struct platform_device *dev) |
485 | { |
486 | struct scsi_host_template *tpnt = &scsi_esp_template; |
487 | struct Scsi_Host *host; |
488 | struct esp *esp; |
489 | int err; |
490 | struct mac_esp_priv *mep; |
491 | |
492 | if (!MACH_IS_MAC) |
493 | return -ENODEV; |
494 | |
495 | if (dev->id > 1) |
496 | return -ENODEV; |
497 | |
498 | host = scsi_host_alloc(tpnt, sizeof(struct esp)); |
499 | |
500 | err = -ENOMEM; |
501 | if (!host) |
502 | goto fail; |
503 | |
504 | host->max_id = 8; |
505 | host->use_clustering = DISABLE_CLUSTERING; |
506 | esp = shost_priv(host); |
507 | |
508 | esp->host = host; |
509 | esp->dev = dev; |
510 | |
511 | esp->command_block = kzalloc(16, GFP_KERNEL); |
512 | if (!esp->command_block) |
513 | goto fail_unlink; |
514 | esp->command_block_dma = (dma_addr_t)esp->command_block; |
515 | |
516 | esp->scsi_id = 7; |
517 | host->this_id = esp->scsi_id; |
518 | esp->scsi_id_mask = 1 << esp->scsi_id; |
519 | |
520 | mep = kzalloc(sizeof(struct mac_esp_priv), GFP_KERNEL); |
521 | if (!mep) |
522 | goto fail_free_command_block; |
523 | mep->esp = esp; |
524 | platform_set_drvdata(dev, mep); |
525 | |
526 | switch (macintosh_config->scsi_type) { |
527 | case MAC_SCSI_QUADRA: |
528 | esp->cfreq = 16500000; |
529 | esp->regs = (void __iomem *)MAC_ESP_REGS_QUADRA; |
530 | mep->pdma_io = esp->regs + MAC_ESP_PDMA_IO_OFFSET; |
531 | mep->pdma_regs = NULL; |
532 | break; |
533 | case MAC_SCSI_QUADRA2: |
534 | esp->cfreq = 25000000; |
535 | esp->regs = (void __iomem *)(MAC_ESP_REGS_QUADRA2 + |
536 | dev->id * MAC_ESP_REGS_SPACING); |
537 | mep->pdma_io = esp->regs + MAC_ESP_PDMA_IO_OFFSET; |
538 | mep->pdma_regs = (void __iomem *)(MAC_ESP_PDMA_REG + |
539 | dev->id * MAC_ESP_PDMA_REG_SPACING); |
540 | nubus_writel(0x1d1, mep->pdma_regs); |
541 | break; |
542 | case MAC_SCSI_QUADRA3: |
543 | /* These quadras have a real DMA controller (the PSC) but we |
544 | * don't know how to drive it so we must use PIO instead. |
545 | */ |
546 | esp->cfreq = 25000000; |
547 | esp->regs = (void __iomem *)MAC_ESP_REGS_QUADRA3; |
548 | mep->pdma_io = NULL; |
549 | mep->pdma_regs = NULL; |
550 | break; |
551 | } |
552 | |
553 | esp->ops = &mac_esp_ops; |
554 | if (mep->pdma_io == NULL) { |
555 | printk(KERN_INFO PFX "using PIO for controller %d\n", dev->id); |
556 | esp_write8(0, ESP_TCLOW); |
557 | esp_write8(0, ESP_TCMED); |
558 | esp->flags = ESP_FLAG_DISABLE_SYNC; |
559 | mac_esp_ops.send_dma_cmd = mac_esp_send_pio_cmd; |
560 | } else { |
561 | printk(KERN_INFO PFX "using PDMA for controller %d\n", dev->id); |
562 | } |
563 | |
564 | host->irq = IRQ_MAC_SCSI; |
565 | esp_chips[dev->id] = esp; |
566 | mb(); |
567 | if (esp_chips[!dev->id] == NULL) { |
568 | err = request_irq(host->irq, mac_scsi_esp_intr, 0, "ESP", NULL); |
569 | if (err < 0) { |
570 | esp_chips[dev->id] = NULL; |
571 | goto fail_free_priv; |
572 | } |
573 | } |
574 | |
575 | err = scsi_esp_register(esp, &dev->dev); |
576 | if (err) |
577 | goto fail_free_irq; |
578 | |
579 | return 0; |
580 | |
581 | fail_free_irq: |
582 | if (esp_chips[!dev->id] == NULL) |
583 | free_irq(host->irq, esp); |
584 | fail_free_priv: |
585 | kfree(mep); |
586 | fail_free_command_block: |
587 | kfree(esp->command_block); |
588 | fail_unlink: |
589 | scsi_host_put(host); |
590 | fail: |
591 | return err; |
592 | } |
593 | |
594 | static int esp_mac_remove(struct platform_device *dev) |
595 | { |
596 | struct mac_esp_priv *mep = platform_get_drvdata(dev); |
597 | struct esp *esp = mep->esp; |
598 | unsigned int irq = esp->host->irq; |
599 | |
600 | scsi_esp_unregister(esp); |
601 | |
602 | esp_chips[dev->id] = NULL; |
603 | if (!(esp_chips[0] || esp_chips[1])) |
604 | free_irq(irq, NULL); |
605 | |
606 | kfree(mep); |
607 | |
608 | kfree(esp->command_block); |
609 | |
610 | scsi_host_put(esp->host); |
611 | |
612 | return 0; |
613 | } |
614 | |
615 | static struct platform_driver esp_mac_driver = { |
616 | .probe = esp_mac_probe, |
617 | .remove = esp_mac_remove, |
618 | .driver = { |
619 | .name = DRV_MODULE_NAME, |
620 | .owner = THIS_MODULE, |
621 | }, |
622 | }; |
623 | |
624 | static int __init mac_esp_init(void) |
625 | { |
626 | return platform_driver_register(&esp_mac_driver); |
627 | } |
628 | |
629 | static void __exit mac_esp_exit(void) |
630 | { |
631 | platform_driver_unregister(&esp_mac_driver); |
632 | } |
633 | |
634 | MODULE_DESCRIPTION("Mac ESP SCSI driver"); |
635 | MODULE_AUTHOR("Finn Thain <fthain@telegraphics.com.au>"); |
636 | MODULE_LICENSE("GPL v2"); |
637 | MODULE_VERSION(DRV_VERSION); |
638 | MODULE_ALIAS("platform:" DRV_MODULE_NAME); |
639 | |
640 | module_init(mac_esp_init); |
641 | module_exit(mac_esp_exit); |
642 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
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jz-3.0
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jz-3.11
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jz-3.3
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jz-3.5
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jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9