Commit | Line | Data |
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443c1228 ST |
1 | /* |
2 | * Driver for the NXP SAA7164 PCIe bridge | |
3 | * | |
4 | * Copyright (c) 2009 Steven Toth <stoth@kernellabs.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | */ | |
21 | ||
22 | #include <linux/init.h> | |
23 | #include <linux/list.h> | |
24 | #include <linux/module.h> | |
25 | #include <linux/moduleparam.h> | |
26 | #include <linux/kmod.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/interrupt.h> | |
30 | #include <linux/delay.h> | |
31 | #include <asm/div64.h> | |
32 | ||
33 | #include "saa7164.h" | |
34 | ||
35 | MODULE_DESCRIPTION("Driver for NXP SAA7164 based TV cards"); | |
9d119c33 | 36 | MODULE_AUTHOR("Steven Toth <stoth@kernellabs.com>"); |
443c1228 ST |
37 | MODULE_LICENSE("GPL"); |
38 | ||
39 | /* | |
40 | 1 Basic | |
41 | 2 | |
42 | 4 i2c | |
43 | 8 api | |
44 | 16 cmd | |
45 | 32 bus | |
46 | */ | |
47 | ||
48 | unsigned int debug; | |
49 | module_param(debug, int, 0644); | |
50 | MODULE_PARM_DESC(debug, "enable debug messages"); | |
51 | ||
bbf504c3 | 52 | unsigned int waitsecs = 10; |
dd1ee444 ST |
53 | module_param(waitsecs, int, 0644); |
54 | MODULE_PARM_DESC(debug, "timeout on firmware messages"); | |
55 | ||
443c1228 ST |
56 | static unsigned int card[] = {[0 ... (SAA7164_MAXBOARDS - 1)] = UNSET }; |
57 | module_param_array(card, int, NULL, 0444); | |
58 | MODULE_PARM_DESC(card, "card type"); | |
59 | ||
60 | static unsigned int saa7164_devcount; | |
61 | ||
62 | static DEFINE_MUTEX(devlist); | |
63 | LIST_HEAD(saa7164_devlist); | |
64 | ||
65 | #define INT_SIZE 16 | |
66 | ||
67 | static void saa7164_work_cmdhandler(struct work_struct *w) | |
68 | { | |
69 | struct saa7164_dev *dev = container_of(w, struct saa7164_dev, workcmd); | |
70 | ||
71 | /* Wake up any complete commands */ | |
39e469ab | 72 | saa7164_irq_dequeue(dev); |
443c1228 ST |
73 | } |
74 | ||
75 | static void saa7164_buffer_deliver(struct saa7164_buffer *buf) | |
76 | { | |
77 | struct saa7164_tsport *port = buf->port; | |
78 | ||
79 | /* Feed the transport payload into the kernel demux */ | |
80 | dvb_dmx_swfilter_packets(&port->dvb.demux, buf->cpu, | |
81 | SAA7164_TS_NUMBER_OF_LINES); | |
82 | ||
83 | } | |
84 | ||
85 | static irqreturn_t saa7164_irq_ts(struct saa7164_tsport *port) | |
86 | { | |
87 | struct saa7164_dev *dev = port->dev; | |
88 | struct saa7164_buffer *buf; | |
89 | struct list_head *c, *n; | |
90 | int wp, i = 0, rp; | |
91 | ||
92 | /* Find the current write point from the hardware */ | |
93 | wp = saa7164_readl(port->bufcounter); | |
94 | if (wp > (port->hwcfg.buffercount - 1)) | |
95 | BUG(); | |
96 | ||
97 | /* Find the previous buffer to the current write point */ | |
98 | if (wp == 0) | |
99 | rp = 7; | |
100 | else | |
101 | rp = wp - 1; | |
102 | ||
103 | /* Lookup the WP in the buffer list */ | |
104 | /* TODO: turn this into a worker thread */ | |
105 | list_for_each_safe(c, n, &port->dmaqueue.list) { | |
106 | buf = list_entry(c, struct saa7164_buffer, list); | |
107 | if (i++ > port->hwcfg.buffercount) | |
108 | BUG(); | |
109 | ||
110 | if (buf->nr == rp) { | |
111 | /* Found the buffer, deal with it */ | |
112 | dprintk(DBGLVL_IRQ, "%s() wp: %d processing: %d\n", | |
113 | __func__, wp, rp); | |
114 | saa7164_buffer_deliver(buf); | |
115 | break; | |
116 | } | |
117 | ||
118 | } | |
119 | return 0; | |
120 | } | |
121 | ||
122 | /* Primary IRQ handler and dispatch mechanism */ | |
123 | static irqreturn_t saa7164_irq(int irq, void *dev_id) | |
124 | { | |
125 | struct saa7164_dev *dev = dev_id; | |
50bcb4ae | 126 | u32 intid, intstat[INT_SIZE/4]; |
443c1228 ST |
127 | int i, handled = 0, bit; |
128 | ||
d888ea03 ST |
129 | if (dev == 0) { |
130 | printk(KERN_ERR "%s() No device specified\n", __func__); | |
131 | handled = 0; | |
132 | goto out; | |
133 | } | |
134 | ||
443c1228 ST |
135 | /* Check that the hardware is accessable. If the status bytes are |
136 | * 0xFF then the device is not accessable, the the IRQ belongs | |
137 | * to another driver. | |
1a6450d4 | 138 | * 4 x u32 interrupt registers. |
443c1228 ST |
139 | */ |
140 | for (i = 0; i < INT_SIZE/4; i++) { | |
141 | ||
142 | /* TODO: Convert into saa7164_readl() */ | |
143 | /* Read the 4 hardware interrupt registers */ | |
1a6450d4 | 144 | intstat[i] = saa7164_readl(dev->int_status + (i * 4)); |
443c1228 | 145 | |
50bcb4ae ST |
146 | if (intstat[i]) |
147 | handled = 1; | |
443c1228 | 148 | } |
50bcb4ae | 149 | if (handled == 0) |
443c1228 | 150 | goto out; |
443c1228 ST |
151 | |
152 | /* For each of the HW interrupt registers */ | |
153 | for (i = 0; i < INT_SIZE/4; i++) { | |
154 | ||
155 | if (intstat[i]) { | |
156 | /* Each function of the board has it's own interruptid. | |
157 | * Find the function that triggered then call | |
158 | * it's handler. | |
159 | */ | |
160 | for (bit = 0; bit < 32; bit++) { | |
161 | ||
162 | if (((intstat[i] >> bit) & 0x00000001) == 0) | |
163 | continue; | |
164 | ||
165 | /* Calculate the interrupt id (0x00 to 0x7f) */ | |
166 | ||
50bcb4ae ST |
167 | intid = (i * 32) + bit; |
168 | if (intid == dev->intfdesc.bInterruptId) { | |
443c1228 ST |
169 | /* A response to an cmd/api call */ |
170 | schedule_work(&dev->workcmd); | |
50bcb4ae | 171 | } else if (intid == |
443c1228 ST |
172 | dev->ts1.hwcfg.interruptid) { |
173 | ||
174 | /* Transport path 1 */ | |
175 | saa7164_irq_ts(&dev->ts1); | |
176 | ||
50bcb4ae | 177 | } else if (intid == |
443c1228 ST |
178 | dev->ts2.hwcfg.interruptid) { |
179 | ||
180 | /* Transport path 2 */ | |
181 | saa7164_irq_ts(&dev->ts2); | |
182 | ||
183 | } else { | |
184 | /* Find the function */ | |
185 | dprintk(DBGLVL_IRQ, | |
186 | "%s() unhandled interrupt " | |
187 | "reg 0x%x bit 0x%x " | |
188 | "intid = 0x%x\n", | |
50bcb4ae | 189 | __func__, i, bit, intid); |
443c1228 ST |
190 | } |
191 | } | |
192 | ||
443c1228 | 193 | /* Ack it */ |
1a6450d4 | 194 | saa7164_writel(dev->int_ack + (i * 4), intstat[i]); |
443c1228 ST |
195 | |
196 | } | |
197 | } | |
198 | out: | |
199 | return IRQ_RETVAL(handled); | |
200 | } | |
201 | ||
202 | void saa7164_getfirmwarestatus(struct saa7164_dev *dev) | |
203 | { | |
204 | struct saa7164_fw_status *s = &dev->fw_status; | |
205 | ||
206 | dev->fw_status.status = saa7164_readl(SAA_DEVICE_SYSINIT_STATUS); | |
207 | dev->fw_status.mode = saa7164_readl(SAA_DEVICE_SYSINIT_MODE); | |
208 | dev->fw_status.spec = saa7164_readl(SAA_DEVICE_SYSINIT_SPEC); | |
209 | dev->fw_status.inst = saa7164_readl(SAA_DEVICE_SYSINIT_INST); | |
210 | dev->fw_status.cpuload = saa7164_readl(SAA_DEVICE_SYSINIT_CPULOAD); | |
211 | dev->fw_status.remainheap = | |
212 | saa7164_readl(SAA_DEVICE_SYSINIT_REMAINHEAP); | |
213 | ||
214 | dprintk(1, "Firmware status:\n"); | |
215 | dprintk(1, " .status = 0x%08x\n", s->status); | |
216 | dprintk(1, " .mode = 0x%08x\n", s->mode); | |
217 | dprintk(1, " .spec = 0x%08x\n", s->spec); | |
218 | dprintk(1, " .inst = 0x%08x\n", s->inst); | |
219 | dprintk(1, " .cpuload = 0x%08x\n", s->cpuload); | |
220 | dprintk(1, " .remainheap = 0x%08x\n", s->remainheap); | |
221 | } | |
222 | ||
223 | u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev) | |
224 | { | |
225 | u32 reg; | |
226 | ||
227 | reg = saa7164_readl(SAA_DEVICE_VERSION); | |
228 | dprintk(1, "Device running firmware version %d.%d.%d.%d (0x%x)\n", | |
229 | (reg & 0x0000fc00) >> 10, | |
230 | (reg & 0x000003e0) >> 5, | |
231 | (reg & 0x0000001f), | |
232 | (reg & 0xffff0000) >> 16, | |
233 | reg); | |
234 | ||
235 | return reg; | |
236 | } | |
237 | ||
238 | /* TODO: Debugging func, remove */ | |
239 | void saa7164_dumphex16(struct saa7164_dev *dev, u8 *buf, int len) | |
240 | { | |
241 | int i; | |
242 | ||
243 | printk(KERN_INFO "--------------------> " | |
244 | "00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n"); | |
245 | ||
246 | for (i = 0; i < len; i += 16) | |
247 | printk(KERN_INFO " [0x%08x] " | |
248 | "%02x %02x %02x %02x %02x %02x %02x %02x " | |
249 | "%02x %02x %02x %02x %02x %02x %02x %02x\n", i, | |
250 | *(buf+i+0), *(buf+i+1), *(buf+i+2), *(buf+i+3), | |
251 | *(buf+i+4), *(buf+i+5), *(buf+i+6), *(buf+i+7), | |
252 | *(buf+i+8), *(buf+i+9), *(buf+i+10), *(buf+i+11), | |
253 | *(buf+i+12), *(buf+i+13), *(buf+i+14), *(buf+i+15)); | |
254 | } | |
255 | ||
256 | /* TODO: Debugging func, remove */ | |
257 | void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr) | |
258 | { | |
259 | int i; | |
260 | ||
261 | dprintk(1, "--------------------> " | |
262 | "00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n"); | |
263 | ||
264 | for (i = 0; i < 0x100; i += 16) | |
265 | dprintk(1, "region0[0x%08x] = " | |
266 | "%02x %02x %02x %02x %02x %02x %02x %02x" | |
267 | " %02x %02x %02x %02x %02x %02x %02x %02x\n", i, | |
268 | (u8)saa7164_readb(addr + i + 0), | |
269 | (u8)saa7164_readb(addr + i + 1), | |
270 | (u8)saa7164_readb(addr + i + 2), | |
271 | (u8)saa7164_readb(addr + i + 3), | |
272 | (u8)saa7164_readb(addr + i + 4), | |
273 | (u8)saa7164_readb(addr + i + 5), | |
274 | (u8)saa7164_readb(addr + i + 6), | |
275 | (u8)saa7164_readb(addr + i + 7), | |
276 | (u8)saa7164_readb(addr + i + 8), | |
277 | (u8)saa7164_readb(addr + i + 9), | |
278 | (u8)saa7164_readb(addr + i + 10), | |
279 | (u8)saa7164_readb(addr + i + 11), | |
280 | (u8)saa7164_readb(addr + i + 12), | |
281 | (u8)saa7164_readb(addr + i + 13), | |
282 | (u8)saa7164_readb(addr + i + 14), | |
283 | (u8)saa7164_readb(addr + i + 15) | |
284 | ); | |
285 | } | |
286 | ||
287 | static void saa7164_dump_hwdesc(struct saa7164_dev *dev) | |
288 | { | |
207b42c4 ST |
289 | dprintk(1, "@0x%p hwdesc sizeof(tmComResHWDescr_t) = %d bytes\n", |
290 | &dev->hwdesc, (u32)sizeof(tmComResHWDescr_t)); | |
443c1228 ST |
291 | |
292 | dprintk(1, " .bLength = 0x%x\n", dev->hwdesc.bLength); | |
293 | dprintk(1, " .bDescriptorType = 0x%x\n", dev->hwdesc.bDescriptorType); | |
294 | dprintk(1, " .bDescriptorSubtype = 0x%x\n", | |
295 | dev->hwdesc.bDescriptorSubtype); | |
296 | ||
297 | dprintk(1, " .bcdSpecVersion = 0x%x\n", dev->hwdesc.bcdSpecVersion); | |
298 | dprintk(1, " .dwClockFrequency = 0x%x\n", dev->hwdesc.dwClockFrequency); | |
299 | dprintk(1, " .dwClockUpdateRes = 0x%x\n", dev->hwdesc.dwClockUpdateRes); | |
300 | dprintk(1, " .bCapabilities = 0x%x\n", dev->hwdesc.bCapabilities); | |
301 | dprintk(1, " .dwDeviceRegistersLocation = 0x%x\n", | |
302 | dev->hwdesc.dwDeviceRegistersLocation); | |
303 | ||
304 | dprintk(1, " .dwHostMemoryRegion = 0x%x\n", | |
305 | dev->hwdesc.dwHostMemoryRegion); | |
306 | ||
307 | dprintk(1, " .dwHostMemoryRegionSize = 0x%x\n", | |
308 | dev->hwdesc.dwHostMemoryRegionSize); | |
309 | ||
310 | dprintk(1, " .dwHostHibernatMemRegion = 0x%x\n", | |
311 | dev->hwdesc.dwHostHibernatMemRegion); | |
312 | ||
313 | dprintk(1, " .dwHostHibernatMemRegionSize = 0x%x\n", | |
314 | dev->hwdesc.dwHostHibernatMemRegionSize); | |
315 | } | |
316 | ||
317 | static void saa7164_dump_intfdesc(struct saa7164_dev *dev) | |
318 | { | |
319 | dprintk(1, "@0x%p intfdesc " | |
207b42c4 ST |
320 | "sizeof(tmComResInterfaceDescr_t) = %d bytes\n", |
321 | &dev->intfdesc, (u32)sizeof(tmComResInterfaceDescr_t)); | |
443c1228 ST |
322 | |
323 | dprintk(1, " .bLength = 0x%x\n", dev->intfdesc.bLength); | |
324 | dprintk(1, " .bDescriptorType = 0x%x\n", dev->intfdesc.bDescriptorType); | |
325 | dprintk(1, " .bDescriptorSubtype = 0x%x\n", | |
326 | dev->intfdesc.bDescriptorSubtype); | |
327 | ||
328 | dprintk(1, " .bFlags = 0x%x\n", dev->intfdesc.bFlags); | |
329 | dprintk(1, " .bInterfaceType = 0x%x\n", dev->intfdesc.bInterfaceType); | |
330 | dprintk(1, " .bInterfaceId = 0x%x\n", dev->intfdesc.bInterfaceId); | |
331 | dprintk(1, " .bBaseInterface = 0x%x\n", dev->intfdesc.bBaseInterface); | |
332 | dprintk(1, " .bInterruptId = 0x%x\n", dev->intfdesc.bInterruptId); | |
333 | dprintk(1, " .bDebugInterruptId = 0x%x\n", | |
334 | dev->intfdesc.bDebugInterruptId); | |
335 | ||
336 | dprintk(1, " .BARLocation = 0x%x\n", dev->intfdesc.BARLocation); | |
337 | } | |
338 | ||
339 | static void saa7164_dump_busdesc(struct saa7164_dev *dev) | |
340 | { | |
207b42c4 ST |
341 | dprintk(1, "@0x%p busdesc sizeof(tmComResBusDescr_t) = %d bytes\n", |
342 | &dev->busdesc, (u32)sizeof(tmComResBusDescr_t)); | |
443c1228 ST |
343 | |
344 | dprintk(1, " .CommandRing = 0x%016Lx\n", dev->busdesc.CommandRing); | |
345 | dprintk(1, " .ResponseRing = 0x%016Lx\n", dev->busdesc.ResponseRing); | |
346 | dprintk(1, " .CommandWrite = 0x%x\n", dev->busdesc.CommandWrite); | |
347 | dprintk(1, " .CommandRead = 0x%x\n", dev->busdesc.CommandRead); | |
348 | dprintk(1, " .ResponseWrite = 0x%x\n", dev->busdesc.ResponseWrite); | |
349 | dprintk(1, " .ResponseRead = 0x%x\n", dev->busdesc.ResponseRead); | |
350 | } | |
351 | ||
352 | /* Much of the hardware configuration and PCI registers are configured | |
353 | * dynamically depending on firmware. We have to cache some initial | |
354 | * structures then use these to locate other important structures | |
355 | * from PCI space. | |
356 | */ | |
357 | static void saa7164_get_descriptors(struct saa7164_dev *dev) | |
358 | { | |
359 | memcpy(&dev->hwdesc, dev->bmmio, sizeof(tmComResHWDescr_t)); | |
360 | memcpy(&dev->intfdesc, dev->bmmio + sizeof(tmComResHWDescr_t), | |
361 | sizeof(tmComResInterfaceDescr_t)); | |
362 | memcpy(&dev->busdesc, dev->bmmio + dev->intfdesc.BARLocation, | |
363 | sizeof(tmComResBusDescr_t)); | |
364 | ||
365 | if (dev->hwdesc.bLength != sizeof(tmComResHWDescr_t)) { | |
366 | printk(KERN_ERR "Structure tmComResHWDescr_t is mangled\n"); | |
207b42c4 ST |
367 | printk(KERN_ERR "Need %x got %d\n", dev->hwdesc.bLength, |
368 | (u32)sizeof(tmComResHWDescr_t)); | |
443c1228 ST |
369 | } else |
370 | saa7164_dump_hwdesc(dev); | |
371 | ||
372 | if (dev->intfdesc.bLength != sizeof(tmComResInterfaceDescr_t)) { | |
373 | printk(KERN_ERR "struct tmComResInterfaceDescr_t is mangled\n"); | |
207b42c4 ST |
374 | printk(KERN_ERR "Need %x got %d\n", dev->intfdesc.bLength, |
375 | (u32)sizeof(tmComResInterfaceDescr_t)); | |
443c1228 ST |
376 | } else |
377 | saa7164_dump_intfdesc(dev); | |
378 | ||
379 | saa7164_dump_busdesc(dev); | |
380 | } | |
381 | ||
382 | static int saa7164_pci_quirks(struct saa7164_dev *dev) | |
383 | { | |
384 | return 0; | |
385 | } | |
386 | ||
387 | static int get_resources(struct saa7164_dev *dev) | |
388 | { | |
389 | if (request_mem_region(pci_resource_start(dev->pci, 0), | |
390 | pci_resource_len(dev->pci, 0), dev->name)) { | |
391 | ||
392 | if (request_mem_region(pci_resource_start(dev->pci, 2), | |
393 | pci_resource_len(dev->pci, 2), dev->name)) | |
394 | return 0; | |
395 | } | |
396 | ||
397 | printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx or 0x%llx\n", | |
398 | dev->name, | |
399 | (u64)pci_resource_start(dev->pci, 0), | |
400 | (u64)pci_resource_start(dev->pci, 2)); | |
401 | ||
402 | return -EBUSY; | |
403 | } | |
404 | ||
405 | static int saa7164_dev_setup(struct saa7164_dev *dev) | |
406 | { | |
407 | int i; | |
408 | ||
409 | mutex_init(&dev->lock); | |
410 | atomic_inc(&dev->refcount); | |
411 | dev->nr = saa7164_devcount++; | |
412 | ||
413 | sprintf(dev->name, "saa7164[%d]", dev->nr); | |
414 | ||
415 | mutex_lock(&devlist); | |
416 | list_add_tail(&dev->devlist, &saa7164_devlist); | |
417 | mutex_unlock(&devlist); | |
418 | ||
419 | /* board config */ | |
420 | dev->board = UNSET; | |
421 | if (card[dev->nr] < saa7164_bcount) | |
422 | dev->board = card[dev->nr]; | |
423 | ||
424 | for (i = 0; UNSET == dev->board && i < saa7164_idcount; i++) | |
425 | if (dev->pci->subsystem_vendor == saa7164_subids[i].subvendor && | |
426 | dev->pci->subsystem_device == | |
427 | saa7164_subids[i].subdevice) | |
428 | dev->board = saa7164_subids[i].card; | |
429 | ||
430 | if (UNSET == dev->board) { | |
431 | dev->board = SAA7164_BOARD_UNKNOWN; | |
432 | saa7164_card_list(dev); | |
433 | } | |
434 | ||
435 | dev->pci_bus = dev->pci->bus->number; | |
436 | dev->pci_slot = PCI_SLOT(dev->pci->devfn); | |
437 | ||
438 | /* I2C Defaults / setup */ | |
439 | dev->i2c_bus[0].dev = dev; | |
440 | dev->i2c_bus[0].nr = 0; | |
441 | dev->i2c_bus[1].dev = dev; | |
442 | dev->i2c_bus[1].nr = 1; | |
443 | dev->i2c_bus[2].dev = dev; | |
444 | dev->i2c_bus[2].nr = 2; | |
445 | ||
446 | /* Transport port A Defaults / setup */ | |
447 | dev->ts1.dev = dev; | |
448 | dev->ts1.nr = 0; | |
449 | mutex_init(&dev->ts1.dvb.lock); | |
450 | INIT_LIST_HEAD(&dev->ts1.dmaqueue.list); | |
451 | INIT_LIST_HEAD(&dev->ts1.dummy_dmaqueue.list); | |
452 | mutex_init(&dev->ts1.dmaqueue_lock); | |
453 | mutex_init(&dev->ts1.dummy_dmaqueue_lock); | |
454 | ||
455 | /* Transport port B Defaults / setup */ | |
456 | dev->ts2.dev = dev; | |
457 | dev->ts2.nr = 1; | |
458 | mutex_init(&dev->ts2.dvb.lock); | |
459 | INIT_LIST_HEAD(&dev->ts2.dmaqueue.list); | |
460 | INIT_LIST_HEAD(&dev->ts2.dummy_dmaqueue.list); | |
461 | mutex_init(&dev->ts2.dmaqueue_lock); | |
462 | mutex_init(&dev->ts2.dummy_dmaqueue_lock); | |
463 | ||
464 | if (get_resources(dev) < 0) { | |
465 | printk(KERN_ERR "CORE %s No more PCIe resources for " | |
466 | "subsystem: %04x:%04x\n", | |
467 | dev->name, dev->pci->subsystem_vendor, | |
468 | dev->pci->subsystem_device); | |
469 | ||
470 | saa7164_devcount--; | |
471 | return -ENODEV; | |
472 | } | |
473 | ||
474 | /* PCI/e allocations */ | |
475 | dev->lmmio = ioremap(pci_resource_start(dev->pci, 0), | |
476 | pci_resource_len(dev->pci, 0)); | |
477 | ||
478 | dev->lmmio2 = ioremap(pci_resource_start(dev->pci, 2), | |
479 | pci_resource_len(dev->pci, 2)); | |
480 | ||
443c1228 ST |
481 | dev->bmmio = (u8 __iomem *)dev->lmmio; |
482 | dev->bmmio2 = (u8 __iomem *)dev->lmmio2; | |
443c1228 | 483 | |
1a6450d4 ST |
484 | /* Inerrupt and ack register locations offset of bmmio */ |
485 | dev->int_status = 0x183000 + 0xf80; | |
486 | dev->int_ack = 0x183000 + 0xf90; | |
443c1228 ST |
487 | |
488 | printk(KERN_INFO | |
489 | "CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n", | |
490 | dev->name, dev->pci->subsystem_vendor, | |
491 | dev->pci->subsystem_device, saa7164_boards[dev->board].name, | |
492 | dev->board, card[dev->nr] == dev->board ? | |
493 | "insmod option" : "autodetected"); | |
494 | ||
495 | saa7164_pci_quirks(dev); | |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
500 | static void saa7164_dev_unregister(struct saa7164_dev *dev) | |
501 | { | |
502 | dprintk(1, "%s()\n", __func__); | |
503 | ||
504 | release_mem_region(pci_resource_start(dev->pci, 0), | |
505 | pci_resource_len(dev->pci, 0)); | |
506 | ||
507 | release_mem_region(pci_resource_start(dev->pci, 2), | |
508 | pci_resource_len(dev->pci, 2)); | |
509 | ||
510 | if (!atomic_dec_and_test(&dev->refcount)) | |
511 | return; | |
512 | ||
513 | iounmap(dev->lmmio); | |
514 | iounmap(dev->lmmio2); | |
515 | ||
516 | return; | |
517 | } | |
518 | ||
519 | static int __devinit saa7164_initdev(struct pci_dev *pci_dev, | |
520 | const struct pci_device_id *pci_id) | |
521 | { | |
522 | struct saa7164_dev *dev; | |
523 | int err, i; | |
524 | u32 version; | |
525 | ||
526 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
527 | if (NULL == dev) | |
528 | return -ENOMEM; | |
529 | ||
530 | /* pci init */ | |
531 | dev->pci = pci_dev; | |
532 | if (pci_enable_device(pci_dev)) { | |
533 | err = -EIO; | |
534 | goto fail_free; | |
535 | } | |
536 | ||
537 | if (saa7164_dev_setup(dev) < 0) { | |
538 | err = -EINVAL; | |
539 | goto fail_free; | |
540 | } | |
541 | ||
542 | /* print pci info */ | |
543 | pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev); | |
544 | pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat); | |
545 | printk(KERN_INFO "%s/0: found at %s, rev: %d, irq: %d, " | |
546 | "latency: %d, mmio: 0x%llx\n", dev->name, | |
547 | pci_name(pci_dev), dev->pci_rev, pci_dev->irq, | |
548 | dev->pci_lat, | |
549 | (unsigned long long)pci_resource_start(pci_dev, 0)); | |
550 | ||
551 | pci_set_master(pci_dev); | |
552 | /* TODO */ | |
553 | if (!pci_dma_supported(pci_dev, 0xffffffff)) { | |
554 | printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name); | |
555 | err = -EIO; | |
556 | goto fail_irq; | |
557 | } | |
558 | ||
559 | err = request_irq(pci_dev->irq, saa7164_irq, | |
560 | IRQF_SHARED | IRQF_DISABLED, dev->name, dev); | |
561 | if (err < 0) { | |
562 | printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name, | |
563 | pci_dev->irq); | |
564 | err = -EIO; | |
565 | goto fail_irq; | |
566 | } | |
567 | ||
568 | pci_set_drvdata(pci_dev, dev); | |
569 | ||
443c1228 ST |
570 | /* Init the internal command list */ |
571 | for (i = 0; i < SAA_CMD_MAX_MSG_UNITS; i++) { | |
572 | dev->cmds[i].seqno = i; | |
573 | dev->cmds[i].inuse = 0; | |
574 | mutex_init(&dev->cmds[i].lock); | |
575 | init_waitqueue_head(&dev->cmds[i].wait); | |
576 | } | |
577 | ||
578 | /* We need a deferred interrupt handler for cmd handling */ | |
579 | INIT_WORK(&dev->workcmd, saa7164_work_cmdhandler); | |
580 | ||
581 | /* Only load the firmware if we know the board */ | |
582 | if (dev->board != SAA7164_BOARD_UNKNOWN) { | |
583 | ||
584 | err = saa7164_downloadfirmware(dev); | |
585 | if (err < 0) { | |
586 | printk(KERN_ERR | |
50bcb4ae ST |
587 | "Failed to boot firmware, no features " |
588 | "registered\n"); | |
589 | goto fail_fw; | |
443c1228 ST |
590 | } |
591 | ||
592 | saa7164_get_descriptors(dev); | |
593 | saa7164_dumpregs(dev, 0); | |
594 | saa7164_getcurrentfirmwareversion(dev); | |
595 | saa7164_getfirmwarestatus(dev); | |
596 | err = saa7164_bus_setup(dev); | |
597 | if (err < 0) | |
598 | printk(KERN_ERR | |
599 | "Failed to setup the bus, will continue\n"); | |
600 | saa7164_bus_dump(dev); | |
601 | ||
602 | /* Ping the running firmware via the command bus and get the | |
603 | * firmware version, this checks the bus is running OK. | |
604 | */ | |
605 | version = 0; | |
606 | if (saa7164_api_get_fw_version(dev, &version) == SAA_OK) | |
607 | dprintk(1, "Bus is operating correctly using " | |
608 | "version %d.%d.%d.%d (0x%x)\n", | |
609 | (version & 0x0000fc00) >> 10, | |
610 | (version & 0x000003e0) >> 5, | |
611 | (version & 0x0000001f), | |
612 | (version & 0xffff0000) >> 16, | |
613 | version); | |
614 | else | |
615 | printk(KERN_ERR | |
616 | "Failed to communicate with the firmware\n"); | |
617 | ||
618 | /* Bring up the I2C buses */ | |
619 | saa7164_i2c_register(&dev->i2c_bus[0]); | |
620 | saa7164_i2c_register(&dev->i2c_bus[1]); | |
621 | saa7164_i2c_register(&dev->i2c_bus[2]); | |
622 | saa7164_gpio_setup(dev); | |
623 | saa7164_card_setup(dev); | |
624 | ||
625 | ||
626 | /* Parse the dynamic device configuration, find various | |
627 | * media endpoints (MPEG, WMV, PS, TS) and cache their | |
628 | * configuration details into the driver, so we can | |
629 | * reference them later during simething_register() func, | |
630 | * interrupt handlers, deferred work handlers etc. | |
631 | */ | |
632 | saa7164_api_enum_subdevs(dev); | |
633 | ||
443c1228 ST |
634 | /* Begin to create the video sub-systems and register funcs */ |
635 | if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB) { | |
636 | if (saa7164_dvb_register(&dev->ts1) < 0) { | |
637 | printk(KERN_ERR "%s() Failed to register " | |
638 | "dvb adapters on porta\n", | |
639 | __func__); | |
640 | } | |
641 | } | |
642 | ||
643 | if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB) { | |
644 | if (saa7164_dvb_register(&dev->ts2) < 0) { | |
645 | printk(KERN_ERR"%s() Failed to register " | |
646 | "dvb adapters on portb\n", | |
647 | __func__); | |
648 | } | |
649 | } | |
650 | ||
651 | } /* != BOARD_UNKNOWN */ | |
652 | else | |
653 | printk(KERN_ERR "%s() Unsupported board detected, " | |
654 | "registering without firmware\n", __func__); | |
655 | ||
2ceae8fd ST |
656 | dprintk(1, "%s() parameter debug = %d\n", __func__, debug); |
657 | dprintk(1, "%s() parameter waitsecs = %d\n", __func__, waitsecs); | |
658 | ||
50bcb4ae | 659 | fail_fw: |
443c1228 ST |
660 | return 0; |
661 | ||
662 | fail_irq: | |
663 | saa7164_dev_unregister(dev); | |
664 | fail_free: | |
665 | kfree(dev); | |
666 | return err; | |
667 | } | |
668 | ||
669 | static void saa7164_shutdown(struct saa7164_dev *dev) | |
670 | { | |
671 | dprintk(1, "%s()\n", __func__); | |
672 | } | |
673 | ||
674 | static void __devexit saa7164_finidev(struct pci_dev *pci_dev) | |
675 | { | |
676 | struct saa7164_dev *dev = pci_get_drvdata(pci_dev); | |
677 | ||
678 | saa7164_shutdown(dev); | |
679 | ||
680 | if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB) | |
681 | saa7164_dvb_unregister(&dev->ts1); | |
682 | ||
683 | if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB) | |
684 | saa7164_dvb_unregister(&dev->ts2); | |
685 | ||
686 | saa7164_i2c_unregister(&dev->i2c_bus[0]); | |
687 | saa7164_i2c_unregister(&dev->i2c_bus[1]); | |
688 | saa7164_i2c_unregister(&dev->i2c_bus[2]); | |
689 | ||
690 | pci_disable_device(pci_dev); | |
691 | ||
692 | /* unregister stuff */ | |
693 | free_irq(pci_dev->irq, dev); | |
694 | pci_set_drvdata(pci_dev, NULL); | |
695 | ||
696 | mutex_lock(&devlist); | |
697 | list_del(&dev->devlist); | |
698 | mutex_unlock(&devlist); | |
699 | ||
700 | saa7164_dev_unregister(dev); | |
701 | kfree(dev); | |
702 | } | |
703 | ||
704 | static struct pci_device_id saa7164_pci_tbl[] = { | |
705 | { | |
706 | /* SAA7164 */ | |
707 | .vendor = 0x1131, | |
708 | .device = 0x7164, | |
709 | .subvendor = PCI_ANY_ID, | |
710 | .subdevice = PCI_ANY_ID, | |
711 | }, { | |
712 | /* --- end of list --- */ | |
713 | } | |
714 | }; | |
715 | MODULE_DEVICE_TABLE(pci, saa7164_pci_tbl); | |
716 | ||
717 | static struct pci_driver saa7164_pci_driver = { | |
718 | .name = "saa7164", | |
719 | .id_table = saa7164_pci_tbl, | |
720 | .probe = saa7164_initdev, | |
721 | .remove = __devexit_p(saa7164_finidev), | |
722 | /* TODO */ | |
723 | .suspend = NULL, | |
724 | .resume = NULL, | |
725 | }; | |
726 | ||
727 | static int saa7164_init(void) | |
728 | { | |
729 | printk(KERN_INFO "saa7164 driver loaded\n"); | |
730 | return pci_register_driver(&saa7164_pci_driver); | |
731 | } | |
732 | ||
733 | static void saa7164_fini(void) | |
734 | { | |
735 | pci_unregister_driver(&saa7164_pci_driver); | |
736 | } | |
737 | ||
738 | module_init(saa7164_init); | |
739 | module_exit(saa7164_fini); | |
740 |