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mlxsw: spectrum: Clear VLAN filters during port initialization
[linux-2.6-block.git] / drivers / ps3 / ps3av.c
CommitLineData
873e65bc 1// SPDX-License-Identifier: GPL-2.0-only
11227fd1 2/*
13a5e30c 3 * PS3 AV backend support.
11227fd1 4 *
13a5e30c
GL		 5 * Copyright (C) 2007 Sony Computer Entertainment Inc.
6 * Copyright 2007 Sony Corp.
11227fd1
GU		 7 */
8
13a5e30c 9#include <linux/kernel.h>
11227fd1
GU		 10#include <linux/module.h>
11#include <linux/delay.h>
12#include <linux/notifier.h>
11227fd1 13#include <linux/ioctl.h>
d7dd91ff 14#include <linux/fb.h>
5a0e3ad6 15#include <linux/slab.h>
ef596c69
GU		 16
17#include <asm/firmware.h>
11227fd1
GU		 18#include <asm/ps3av.h>
19#include <asm/ps3.h>
20
21#include "vuart.h"
22
23#define BUFSIZE 4096 /* vuart buf size */
24#define PS3AV_BUF_SIZE 512 /* max packet size */
25
d7dd91ff
GU		 26static int safe_mode;
27
11227fd1
GU		 28static int timeout = 5000; /* in msec ( 5 sec ) */
29module_param(timeout, int, 0644);
30
fffe52e8 31static struct ps3av {
fffe52e8
GU		 32 struct mutex mutex;
33 struct work_struct work;
34 struct completion done;
fffe52e8 35 int open_count;
13a5e30c 36 struct ps3_system_bus_device *dev;
fffe52e8
GU		 37
38 int region;
39 struct ps3av_pkt_av_get_hw_conf av_hw_conf;
40 u32 av_port[PS3AV_AV_PORT_MAX + PS3AV_OPT_PORT_MAX];
41 u32 opt_port[PS3AV_OPT_PORT_MAX];
42 u32 head[PS3AV_HEAD_MAX];
43 u32 audio_port;
44 int ps3av_mode;
45 int ps3av_mode_old;
13a5e30c
GL		 46 union {
47 struct ps3av_reply_hdr reply_hdr;
48 u8 raw[PS3AV_BUF_SIZE];
49 } recv_buf;
13a5e30c 50} *ps3av;
11227fd1
GU		 51
52/* color space */
53#define YUV444 PS3AV_CMD_VIDEO_CS_YUV444_8
54#define RGB8 PS3AV_CMD_VIDEO_CS_RGB_8
55/* format */
56#define XRGB PS3AV_CMD_VIDEO_FMT_X8R8G8B8
57/* aspect */
58#define A_N PS3AV_CMD_AV_ASPECT_4_3
59#define A_W PS3AV_CMD_AV_ASPECT_16_9
60static const struct avset_video_mode {
61 u32 cs;
62 u32 fmt;
63 u32 vid;
64 u32 aspect;
65 u32 x;
66 u32 y;
11227fd1
GU		 67} video_mode_table[] = {
68 { 0, }, /* auto */
3c4f594a
GU		 69 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_480I, A_N, 720, 480},
70 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_480P, A_N, 720, 480},
7a4a89c3 71 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_720P_60HZ, A_W, 1280, 720},
3c4f594a
GU		 72 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080I_60HZ, A_W, 1920, 1080},
73 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080P_60HZ, A_W, 1920, 1080},
74 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_576I, A_N, 720, 576},
75 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_576P, A_N, 720, 576},
7a4a89c3 76 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_720P_50HZ, A_W, 1280, 720},
3c4f594a
GU		 77 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080I_50HZ, A_W, 1920, 1080},
78 {YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080P_50HZ, A_W, 1920, 1080},
79 { RGB8, XRGB, PS3AV_CMD_VIDEO_VID_WXGA, A_W, 1280, 768},
80 { RGB8, XRGB, PS3AV_CMD_VIDEO_VID_SXGA, A_N, 1280, 1024},
81 { RGB8, XRGB, PS3AV_CMD_VIDEO_VID_WUXGA, A_W, 1920, 1200},
11227fd1
GU		 82};
83
84/* supported CIDs */
85static u32 cmd_table[] = {
86 /* init */
87 PS3AV_CID_AV_INIT,
88 PS3AV_CID_AV_FIN,
89 PS3AV_CID_VIDEO_INIT,
90 PS3AV_CID_AUDIO_INIT,
91
92 /* set */
93 PS3AV_CID_AV_ENABLE_EVENT,
94 PS3AV_CID_AV_DISABLE_EVENT,
95
96 PS3AV_CID_AV_VIDEO_CS,
97 PS3AV_CID_AV_VIDEO_MUTE,
98 PS3AV_CID_AV_VIDEO_DISABLE_SIG,
99 PS3AV_CID_AV_AUDIO_PARAM,
100 PS3AV_CID_AV_AUDIO_MUTE,
101 PS3AV_CID_AV_HDMI_MODE,
102 PS3AV_CID_AV_TV_MUTE,
103
104 PS3AV_CID_VIDEO_MODE,
105 PS3AV_CID_VIDEO_FORMAT,
106 PS3AV_CID_VIDEO_PITCH,
107
108 PS3AV_CID_AUDIO_MODE,
109 PS3AV_CID_AUDIO_MUTE,
110 PS3AV_CID_AUDIO_ACTIVE,
111 PS3AV_CID_AUDIO_INACTIVE,
112 PS3AV_CID_AVB_PARAM,
113
114 /* get */
115 PS3AV_CID_AV_GET_HW_CONF,
116 PS3AV_CID_AV_GET_MONITOR_INFO,
117
118 /* event */
119 PS3AV_CID_EVENT_UNPLUGGED,
120 PS3AV_CID_EVENT_PLUGGED,
121 PS3AV_CID_EVENT_HDCP_DONE,
122 PS3AV_CID_EVENT_HDCP_FAIL,
123 PS3AV_CID_EVENT_HDCP_AUTH,
124 PS3AV_CID_EVENT_HDCP_ERROR,
125
126 0
127};
128
129#define PS3AV_EVENT_CMD_MASK 0x10000000
130#define PS3AV_EVENT_ID_MASK 0x0000ffff
131#define PS3AV_CID_MASK 0xffffffff
132#define PS3AV_REPLY_BIT 0x80000000
133
134#define ps3av_event_get_port_id(cid) ((cid >> 16) & 0xff)
135
136static u32 *ps3av_search_cmd_table(u32 cid, u32 mask)
137{
138 u32 *table;
139 int i;
140
141 table = cmd_table;
142 for (i = 0;; table++, i++) {
143 if ((*table & mask) == (cid & mask))
144 break;
145 if (*table == 0)
146 return NULL;
147 }
148 return table;
149}
150
151static int ps3av_parse_event_packet(const struct ps3av_reply_hdr *hdr)
152{
153 u32 *table;
154
155 if (hdr->cid & PS3AV_EVENT_CMD_MASK) {
156 table = ps3av_search_cmd_table(hdr->cid, PS3AV_EVENT_CMD_MASK);
157 if (table)
13a5e30c 158 dev_dbg(&ps3av->dev->core,
11227fd1
GU		 159 "recv event packet cid:%08x port:0x%x size:%d\n",
160 hdr->cid, ps3av_event_get_port_id(hdr->cid),
161 hdr->size);
162 else
163 printk(KERN_ERR
164 "%s: failed event packet, cid:%08x size:%d\n",
253f04e7 165 __func__, hdr->cid, hdr->size);
11227fd1
GU		 166 return 1; /* receive event packet */
167 }
168 return 0;
169}
170
13a5e30c
GL		 171
172#define POLLING_INTERVAL 25 /* in msec */
173
174static int ps3av_vuart_write(struct ps3_system_bus_device *dev,
175 const void *buf, unsigned long size)
176{
177 int error;
178 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
179 error = ps3_vuart_write(dev, buf, size);
180 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
181 return error ? error : size;
182}
183
184static int ps3av_vuart_read(struct ps3_system_bus_device *dev, void *buf,
185 unsigned long size, int timeout)
186{
187 int error;
188 int loopcnt = 0;
189
190 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
191 timeout = (timeout + POLLING_INTERVAL - 1) / POLLING_INTERVAL;
192 while (loopcnt++ <= timeout) {
193 error = ps3_vuart_read(dev, buf, size);
194 if (!error)
195 return size;
196 if (error != -EAGAIN) {
197 printk(KERN_ERR "%s: ps3_vuart_read failed %d\n",
198 __func__, error);
199 return error;
200 }
201 msleep(POLLING_INTERVAL);
202 }
203 return -EWOULDBLOCK;
204}
205
11227fd1
GU		 206static int ps3av_send_cmd_pkt(const struct ps3av_send_hdr *send_buf,
207 struct ps3av_reply_hdr *recv_buf, int write_len,
208 int read_len)
209{
210 int res;
211 u32 cmd;
212 int event;
213
13a5e30c 214 if (!ps3av)
11227fd1
GU		 215 return -ENODEV;
216
217 /* send pkt */
13a5e30c 218 res = ps3av_vuart_write(ps3av->dev, send_buf, write_len);
11227fd1 219 if (res < 0) {
13a5e30c 220 dev_dbg(&ps3av->dev->core,
11227fd1 221 "%s: ps3av_vuart_write() failed (result=%d)\n",
253f04e7 222 __func__, res);
11227fd1
GU		 223 return res;
224 }
225
226 /* recv pkt */
227 cmd = send_buf->cid;
228 do {
229 /* read header */
13a5e30c 230 res = ps3av_vuart_read(ps3av->dev, recv_buf, PS3AV_HDR_SIZE,
11227fd1
GU		 231 timeout);
232 if (res != PS3AV_HDR_SIZE) {
13a5e30c 233 dev_dbg(&ps3av->dev->core,
11227fd1 234 "%s: ps3av_vuart_read() failed (result=%d)\n",
253f04e7 235 __func__, res);
11227fd1
GU		 236 return res;
237 }
238
239 /* read body */
13a5e30c 240 res = ps3av_vuart_read(ps3av->dev, &recv_buf->cid,
11227fd1
GU		 241 recv_buf->size, timeout);
242 if (res < 0) {
13a5e30c 243 dev_dbg(&ps3av->dev->core,
11227fd1 244 "%s: ps3av_vuart_read() failed (result=%d)\n",
253f04e7 245 __func__, res);
11227fd1
GU		 246 return res;
247 }
248 res += PS3AV_HDR_SIZE; /* total len */
249 event = ps3av_parse_event_packet(recv_buf);
250 /* ret > 0 event packet */
251 } while (event);
252
253 if ((cmd | PS3AV_REPLY_BIT) != recv_buf->cid) {
13a5e30c 254 dev_dbg(&ps3av->dev->core, "%s: reply err (result=%x)\n",
253f04e7 255 __func__, recv_buf->cid);
11227fd1
GU		 256 return -EINVAL;
257 }
258
259 return 0;
260}
261
262static int ps3av_process_reply_packet(struct ps3av_send_hdr *cmd_buf,
263 const struct ps3av_reply_hdr *recv_buf,
264 int user_buf_size)
265{
266 int return_len;
267
268 if (recv_buf->version != PS3AV_VERSION) {
13a5e30c 269 dev_dbg(&ps3av->dev->core, "reply_packet invalid version:%x\n",
11227fd1
GU		 270 recv_buf->version);
271 return -EFAULT;
272 }
273 return_len = recv_buf->size + PS3AV_HDR_SIZE;
274 if (return_len > user_buf_size)
275 return_len = user_buf_size;
276 memcpy(cmd_buf, recv_buf, return_len);
277 return 0; /* success */
278}
279
280void ps3av_set_hdr(u32 cid, u16 size, struct ps3av_send_hdr *hdr)
281{
282 hdr->version = PS3AV_VERSION;
283 hdr->size = size - PS3AV_HDR_SIZE;
284 hdr->cid = cid;
285}
286
287int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
288 struct ps3av_send_hdr *buf)
289{
290 int res = 0;
11227fd1
GU		 291 u32 *table;
292
13a5e30c 293 BUG_ON(!ps3av);
11227fd1 294
13a5e30c 295 mutex_lock(&ps3av->mutex);
11227fd1
GU		 296
297 table = ps3av_search_cmd_table(cid, PS3AV_CID_MASK);
298 BUG_ON(!table);
299 BUG_ON(send_len < PS3AV_HDR_SIZE);
300 BUG_ON(usr_buf_size < send_len);
301 BUG_ON(usr_buf_size > PS3AV_BUF_SIZE);
302
303 /* create header */
304 ps3av_set_hdr(cid, send_len, buf);
305
306 /* send packet via vuart */
13a5e30c 307 res = ps3av_send_cmd_pkt(buf, &ps3av->recv_buf.reply_hdr, send_len,
11227fd1
GU		 308 usr_buf_size);
309 if (res < 0) {
310 printk(KERN_ERR
311 "%s: ps3av_send_cmd_pkt() failed (result=%d)\n",
253f04e7 312 __func__, res);
11227fd1
GU		 313 goto err;
314 }
315
316 /* process reply packet */
13a5e30c 317 res = ps3av_process_reply_packet(buf, &ps3av->recv_buf.reply_hdr,
11227fd1
GU		 318 usr_buf_size);
319 if (res < 0) {
320 printk(KERN_ERR "%s: put_return_status() failed (result=%d)\n",
253f04e7 321 __func__, res);
11227fd1
GU		 322 goto err;
323 }
324
13a5e30c 325 mutex_unlock(&ps3av->mutex);
11227fd1
GU		 326 return 0;
327
f02777b4 328err:
13a5e30c 329 mutex_unlock(&ps3av->mutex);
253f04e7 330 printk(KERN_ERR "%s: failed cid:%x res:%d\n", __func__, cid, res);
11227fd1
GU		 331 return res;
332}
333
334static int ps3av_set_av_video_mute(u32 mute)
335{
336 int i, num_of_av_port, res;
337
13a5e30c
GL		 338 num_of_av_port = ps3av->av_hw_conf.num_of_hdmi +
339 ps3av->av_hw_conf.num_of_avmulti;
11227fd1
GU		 340 /* video mute on */
341 for (i = 0; i < num_of_av_port; i++) {
13a5e30c 342 res = ps3av_cmd_av_video_mute(1, &ps3av->av_port[i], mute);
11227fd1
GU		 343 if (res < 0)
344 return -1;
345 }
346
347 return 0;
348}
349
350static int ps3av_set_video_disable_sig(void)
351{
352 int i, num_of_hdmi_port, num_of_av_port, res;
353
13a5e30c
GL		 354 num_of_hdmi_port = ps3av->av_hw_conf.num_of_hdmi;
355 num_of_av_port = ps3av->av_hw_conf.num_of_hdmi +
356 ps3av->av_hw_conf.num_of_avmulti;
11227fd1
GU		 357
358 /* tv mute */
359 for (i = 0; i < num_of_hdmi_port; i++) {
13a5e30c 360 res = ps3av_cmd_av_tv_mute(ps3av->av_port[i],
11227fd1
GU		 361 PS3AV_CMD_MUTE_ON);
362 if (res < 0)
363 return -1;
364 }
365 msleep(100);
366
367 /* video mute on */
368 for (i = 0; i < num_of_av_port; i++) {
13a5e30c 369 res = ps3av_cmd_av_video_disable_sig(ps3av->av_port[i]);
11227fd1
GU		 370 if (res < 0)
371 return -1;
372 if (i < num_of_hdmi_port) {
13a5e30c 373 res = ps3av_cmd_av_tv_mute(ps3av->av_port[i],
11227fd1
GU		 374 PS3AV_CMD_MUTE_OFF);
375 if (res < 0)
376 return -1;
377 }
378 }
379 msleep(300);
380
381 return 0;
382}
383
384static int ps3av_set_audio_mute(u32 mute)
385{
386 int i, num_of_av_port, num_of_opt_port, res;
387
13a5e30c
GL		 388 num_of_av_port = ps3av->av_hw_conf.num_of_hdmi +
389 ps3av->av_hw_conf.num_of_avmulti;
390 num_of_opt_port = ps3av->av_hw_conf.num_of_spdif;
11227fd1
GU		 391
392 for (i = 0; i < num_of_av_port; i++) {
13a5e30c 393 res = ps3av_cmd_av_audio_mute(1, &ps3av->av_port[i], mute);
11227fd1
GU		 394 if (res < 0)
395 return -1;
396 }
397 for (i = 0; i < num_of_opt_port; i++) {
13a5e30c 398 res = ps3av_cmd_audio_mute(1, &ps3av->opt_port[i], mute);
11227fd1
GU		 399 if (res < 0)
400 return -1;
401 }
402
403 return 0;
404}
405
406int ps3av_set_audio_mode(u32 ch, u32 fs, u32 word_bits, u32 format, u32 source)
407{
408 struct ps3av_pkt_avb_param avb_param;
409 int i, num_of_audio, vid, res;
410 struct ps3av_pkt_audio_mode audio_mode;
411 u32 len = 0;
412
13a5e30c
GL		 413 num_of_audio = ps3av->av_hw_conf.num_of_hdmi +
414 ps3av->av_hw_conf.num_of_avmulti +
415 ps3av->av_hw_conf.num_of_spdif;
11227fd1
GU		 416
417 avb_param.num_of_video_pkt = 0;
418 avb_param.num_of_audio_pkt = PS3AV_AVB_NUM_AUDIO; /* always 0 */
419 avb_param.num_of_av_video_pkt = 0;
13a5e30c 420 avb_param.num_of_av_audio_pkt = ps3av->av_hw_conf.num_of_hdmi;
11227fd1 421
13a5e30c 422 vid = video_mode_table[ps3av->ps3av_mode].vid;
11227fd1
GU		 423
424 /* audio mute */
425 ps3av_set_audio_mute(PS3AV_CMD_MUTE_ON);
426
427 /* audio inactive */
13a5e30c 428 res = ps3av_cmd_audio_active(0, ps3av->audio_port);
11227fd1 429 if (res < 0)
13a5e30c 430 dev_dbg(&ps3av->dev->core,
11227fd1
GU		 431 "ps3av_cmd_audio_active OFF failed\n");
432
433 /* audio_pkt */
434 for (i = 0; i < num_of_audio; i++) {
13a5e30c
GL		 435 ps3av_cmd_set_audio_mode(&audio_mode, ps3av->av_port[i], ch,
436 fs, word_bits, format, source);
437 if (i < ps3av->av_hw_conf.num_of_hdmi) {
11227fd1
GU		 438 /* hdmi only */
439 len += ps3av_cmd_set_av_audio_param(&avb_param.buf[len],
13a5e30c 440 ps3av->av_port[i],
11227fd1
GU		 441 &audio_mode, vid);
442 }
443 /* audio_mode pkt should be sent separately */
444 res = ps3av_cmd_audio_mode(&audio_mode);
445 if (res < 0)
13a5e30c 446 dev_dbg(&ps3av->dev->core,
11227fd1
GU		 447 "ps3av_cmd_audio_mode failed, port:%x\n", i);
448 }
449
450 /* send command using avb pkt */
451 len += offsetof(struct ps3av_pkt_avb_param, buf);
452 res = ps3av_cmd_avb_param(&avb_param, len);
453 if (res < 0)
13a5e30c 454 dev_dbg(&ps3av->dev->core, "ps3av_cmd_avb_param failed\n");
11227fd1
GU		 455
456 /* audio mute */
457 ps3av_set_audio_mute(PS3AV_CMD_MUTE_OFF);
458
459 /* audio active */
13a5e30c 460 res = ps3av_cmd_audio_active(1, ps3av->audio_port);
11227fd1 461 if (res < 0)
13a5e30c
GL		 462 dev_dbg(&ps3av->dev->core,
463 "ps3av_cmd_audio_active ON failed\n");
11227fd1
GU		 464
465 return 0;
466}
11227fd1
GU		 467EXPORT_SYMBOL_GPL(ps3av_set_audio_mode);
468
469static int ps3av_set_videomode(void)
470{
471 /* av video mute */
472 ps3av_set_av_video_mute(PS3AV_CMD_MUTE_ON);
473
474 /* wake up ps3avd to do the actual video mode setting */
f0200c02 475 schedule_work(&ps3av->work);
11227fd1
GU		 476
477 return 0;
478}
479
8ca0bf75 480static void ps3av_set_videomode_packet(u32 id)
11227fd1
GU		 481{
482 struct ps3av_pkt_avb_param avb_param;
8ca0bf75 483 unsigned int i;
11227fd1
GU		 484 u32 len = 0, av_video_cs;
485 const struct avset_video_mode *video_mode;
486 int res;
487
488 video_mode = &video_mode_table[id & PS3AV_MODE_MASK];
489
f02777b4 490 avb_param.num_of_video_pkt = PS3AV_AVB_NUM_VIDEO; /* num of head */
11227fd1 491 avb_param.num_of_audio_pkt = 0;
13a5e30c
GL		 492 avb_param.num_of_av_video_pkt = ps3av->av_hw_conf.num_of_hdmi +
493 ps3av->av_hw_conf.num_of_avmulti;
11227fd1
GU		 494 avb_param.num_of_av_audio_pkt = 0;
495
11227fd1
GU		 496 /* video_pkt */
497 for (i = 0; i < avb_param.num_of_video_pkt; i++)
498 len += ps3av_cmd_set_video_mode(&avb_param.buf[len],
13a5e30c 499 ps3av->head[i], video_mode->vid,
11227fd1
GU		 500 video_mode->fmt, id);
501 /* av_video_pkt */
502 for (i = 0; i < avb_param.num_of_av_video_pkt; i++) {
503 if (id & PS3AV_MODE_DVI || id & PS3AV_MODE_RGB)
504 av_video_cs = RGB8;
505 else
506 av_video_cs = video_mode->cs;
507#ifndef PS3AV_HDMI_YUV
13a5e30c
GL		 508 if (ps3av->av_port[i] == PS3AV_CMD_AVPORT_HDMI_0 ||
509 ps3av->av_port[i] == PS3AV_CMD_AVPORT_HDMI_1)
f02777b4 510 av_video_cs = RGB8; /* use RGB for HDMI */
11227fd1
GU		 511#endif
512 len += ps3av_cmd_set_av_video_cs(&avb_param.buf[len],
13a5e30c 513 ps3av->av_port[i],
11227fd1
GU		 514 video_mode->vid, av_video_cs,
515 video_mode->aspect, id);
516 }
517 /* send command using avb pkt */
518 len += offsetof(struct ps3av_pkt_avb_param, buf);
519 res = ps3av_cmd_avb_param(&avb_param, len);
520 if (res == PS3AV_STATUS_NO_SYNC_HEAD)
521 printk(KERN_WARNING
8354be9c 522 "%s: Command failed. Please try your request again.\n",
253f04e7 523 __func__);
11227fd1 524 else if (res)
13a5e30c 525 dev_dbg(&ps3av->dev->core, "ps3av_cmd_avb_param failed\n");
8ca0bf75
MK		 526}
527
528static void ps3av_set_videomode_cont(u32 id, u32 old_id)
529{
084ffff2 530 static int vesa;
8ca0bf75
MK		 531 int res;
532
533 /* video signal off */
534 ps3av_set_video_disable_sig();
535
536 /*
537 * AV backend needs non-VESA mode setting at least one time
538 * when VESA mode is used.
539 */
084ffff2 540 if (vesa == 0 && (id & PS3AV_MODE_MASK) >= PS3AV_MODE_WXGA) {
8ca0bf75 541 /* vesa mode */
084ffff2 542 ps3av_set_videomode_packet(PS3AV_MODE_480P);
8ca0bf75
MK		 543 }
544 vesa = 1;
545
546 /* Retail PS3 product doesn't support this */
547 if (id & PS3AV_MODE_HDCP_OFF) {
548 res = ps3av_cmd_av_hdmi_mode(PS3AV_CMD_AV_HDMI_HDCP_OFF);
549 if (res == PS3AV_STATUS_UNSUPPORTED_HDMI_MODE)
550 dev_dbg(&ps3av->dev->core, "Not supported\n");
551 else if (res)
552 dev_dbg(&ps3av->dev->core,
553 "ps3av_cmd_av_hdmi_mode failed\n");
554 } else if (old_id & PS3AV_MODE_HDCP_OFF) {
555 res = ps3av_cmd_av_hdmi_mode(PS3AV_CMD_AV_HDMI_MODE_NORMAL);
556 if (res < 0 && res != PS3AV_STATUS_UNSUPPORTED_HDMI_MODE)
557 dev_dbg(&ps3av->dev->core,
558 "ps3av_cmd_av_hdmi_mode failed\n");
559 }
560
561 ps3av_set_videomode_packet(id);
11227fd1
GU		 562
563 msleep(1500);
564 /* av video mute */
565 ps3av_set_av_video_mute(PS3AV_CMD_MUTE_OFF);
566}
567
5caf5db8 568static void ps3avd(struct work_struct *work)
11227fd1 569{
13a5e30c
GL		 570 ps3av_set_videomode_cont(ps3av->ps3av_mode, ps3av->ps3av_mode_old);
571 complete(&ps3av->done);
11227fd1
GU		 572}
573
fd562112
GU		 574#define SHIFT_50 0
575#define SHIFT_60 4
576#define SHIFT_VESA 8
577
578static const struct {
f02777b4
VI		 579 unsigned mask:19;
580 unsigned id:4;
fd562112 581} ps3av_preferred_modes[] = {
084ffff2
GU		 582 { PS3AV_RESBIT_WUXGA << SHIFT_VESA, PS3AV_MODE_WUXGA },
583 { PS3AV_RESBIT_1920x1080P << SHIFT_60, PS3AV_MODE_1080P60 },
584 { PS3AV_RESBIT_1920x1080P << SHIFT_50, PS3AV_MODE_1080P50 },
585 { PS3AV_RESBIT_1920x1080I << SHIFT_60, PS3AV_MODE_1080I60 },
586 { PS3AV_RESBIT_1920x1080I << SHIFT_50, PS3AV_MODE_1080I50 },
587 { PS3AV_RESBIT_SXGA << SHIFT_VESA, PS3AV_MODE_SXGA },
588 { PS3AV_RESBIT_WXGA << SHIFT_VESA, PS3AV_MODE_WXGA },
589 { PS3AV_RESBIT_1280x720P << SHIFT_60, PS3AV_MODE_720P60 },
590 { PS3AV_RESBIT_1280x720P << SHIFT_50, PS3AV_MODE_720P50 },
591 { PS3AV_RESBIT_720x480P << SHIFT_60, PS3AV_MODE_480P },
592 { PS3AV_RESBIT_720x576P << SHIFT_50, PS3AV_MODE_576P },
fd562112
GU		 593};
594
084ffff2
GU		 595static enum ps3av_mode_num ps3av_resbit2id(u32 res_50, u32 res_60,
596 u32 res_vesa)
11227fd1 597{
fd562112
GU		 598 unsigned int i;
599 u32 res_all;
600
601 /*
602 * We mask off the resolution bits we care about and combine the
603 * results in one bitfield, so make sure there's no overlap
604 */
605 BUILD_BUG_ON(PS3AV_RES_MASK_50 << SHIFT_50 &
606 PS3AV_RES_MASK_60 << SHIFT_60);
607 BUILD_BUG_ON(PS3AV_RES_MASK_50 << SHIFT_50 &
608 PS3AV_RES_MASK_VESA << SHIFT_VESA);
609 BUILD_BUG_ON(PS3AV_RES_MASK_60 << SHIFT_60 &
610 PS3AV_RES_MASK_VESA << SHIFT_VESA);
611 res_all = (res_50 & PS3AV_RES_MASK_50) << SHIFT_50 |
612 (res_60 & PS3AV_RES_MASK_60) << SHIFT_60 |
613 (res_vesa & PS3AV_RES_MASK_VESA) << SHIFT_VESA;
614
615 if (!res_all)
616 return 0;
617
618 for (i = 0; i < ARRAY_SIZE(ps3av_preferred_modes); i++)
619 if (res_all & ps3av_preferred_modes[i].mask)
620 return ps3av_preferred_modes[i].id;
621
622 return 0;
11227fd1
GU		 623}
624
084ffff2 625static enum ps3av_mode_num ps3av_hdmi_get_id(struct ps3av_info_monitor *info)
11227fd1 626{
084ffff2 627 enum ps3av_mode_num id;
11227fd1 628
d7dd91ff
GU		 629 if (safe_mode)
630 return PS3AV_DEFAULT_HDMI_MODE_ID_REG_60;
631
11227fd1 632 /* check native resolution */
fd562112
GU		 633 id = ps3av_resbit2id(info->res_50.native, info->res_60.native,
634 info->res_vesa.native);
635 if (id) {
636 pr_debug("%s: Using native mode %d\n", __func__, id);
71a27fec 637 return id;
11227fd1
GU		 638 }
639
fd562112
GU		 640 /* check supported resolutions */
641 id = ps3av_resbit2id(info->res_50.res_bits, info->res_60.res_bits,
642 info->res_vesa.res_bits);
643 if (id) {
644 pr_debug("%s: Using supported mode %d\n", __func__, id);
71a27fec 645 return id;
11227fd1
GU		 646 }
647
13a5e30c 648 if (ps3av->region & PS3AV_REGION_60)
71a27fec 649 id = PS3AV_DEFAULT_HDMI_MODE_ID_REG_60;
11227fd1 650 else
71a27fec 651 id = PS3AV_DEFAULT_HDMI_MODE_ID_REG_50;
fd562112 652 pr_debug("%s: Using default mode %d\n", __func__, id);
71a27fec 653 return id;
11227fd1
GU		 654}
655
f02777b4
VI		 656static void ps3av_monitor_info_dump(
657 const struct ps3av_pkt_av_get_monitor_info *monitor_info)
eea820ab
GU		 658{
659 const struct ps3av_info_monitor *info = &monitor_info->info;
660 const struct ps3av_info_audio *audio = info->audio;
661 char id[sizeof(info->monitor_id)*3+1];
662 int i;
663
664 pr_debug("Monitor Info: size %u\n", monitor_info->send_hdr.size);
665
666 pr_debug("avport: %02x\n", info->avport);
667 for (i = 0; i < sizeof(info->monitor_id); i++)
668 sprintf(&id[i*3], " %02x", info->monitor_id[i]);
669 pr_debug("monitor_id: %s\n", id);
670 pr_debug("monitor_type: %02x\n", info->monitor_type);
671 pr_debug("monitor_name: %.*s\n", (int)sizeof(info->monitor_name),
672 info->monitor_name);
673
674 /* resolution */
675 pr_debug("resolution_60: bits: %08x native: %08x\n",
676 info->res_60.res_bits, info->res_60.native);
677 pr_debug("resolution_50: bits: %08x native: %08x\n",
678 info->res_50.res_bits, info->res_50.native);
679 pr_debug("resolution_other: bits: %08x native: %08x\n",
680 info->res_other.res_bits, info->res_other.native);
681 pr_debug("resolution_vesa: bits: %08x native: %08x\n",
682 info->res_vesa.res_bits, info->res_vesa.native);
683
684 /* color space */
685 pr_debug("color space rgb: %02x\n", info->cs.rgb);
686 pr_debug("color space yuv444: %02x\n", info->cs.yuv444);
687 pr_debug("color space yuv422: %02x\n", info->cs.yuv422);
688
689 /* color info */
690 pr_debug("color info red: X %04x Y %04x\n", info->color.red_x,
691 info->color.red_y);
692 pr_debug("color info green: X %04x Y %04x\n", info->color.green_x,
693 info->color.green_y);
694 pr_debug("color info blue: X %04x Y %04x\n", info->color.blue_x,
695 info->color.blue_y);
696 pr_debug("color info white: X %04x Y %04x\n", info->color.white_x,
697 info->color.white_y);
698 pr_debug("color info gamma: %08x\n", info->color.gamma);
699
700 /* other info */
701 pr_debug("supported_AI: %02x\n", info->supported_ai);
702 pr_debug("speaker_info: %02x\n", info->speaker_info);
703 pr_debug("num of audio: %02x\n", info->num_of_audio_block);
704
705 /* audio block */
706 for (i = 0; i < info->num_of_audio_block; i++) {
f02777b4
VI		 707 pr_debug(
708 "audio[%d] type: %02x max_ch: %02x fs: %02x sbit: %02x\n",
eea820ab
GU		 709 i, audio->type, audio->max_num_of_ch, audio->fs,
710 audio->sbit);
711 audio++;
712 }
713}
714
57f70c60
GU		 715static const struct ps3av_monitor_quirk {
716 const char *monitor_name;
3305a6bc 717 u32 clear_60;
57f70c60
GU		 718} ps3av_monitor_quirks[] = {
719 {
720 .monitor_name = "DELL 2007WFP",
721 .clear_60 = PS3AV_RESBIT_1920x1080I
722 }, {
723 .monitor_name = "L226WTQ",
724 .clear_60 = PS3AV_RESBIT_1920x1080I |
725 PS3AV_RESBIT_1920x1080P
726 }, {
727 .monitor_name = "SyncMaster",
728 .clear_60 = PS3AV_RESBIT_1920x1080I
729 }
730};
731
732static void ps3av_fixup_monitor_info(struct ps3av_info_monitor *info)
733{
734 unsigned int i;
735 const struct ps3av_monitor_quirk *quirk;
736
737 for (i = 0; i < ARRAY_SIZE(ps3av_monitor_quirks); i++) {
738 quirk = &ps3av_monitor_quirks[i];
739 if (!strncmp(info->monitor_name, quirk->monitor_name,
740 sizeof(info->monitor_name))) {
741 pr_info("%s: Applying quirk for %s\n", __func__,
742 quirk->monitor_name);
743 info->res_60.res_bits &= ~quirk->clear_60;
744 info->res_60.native &= ~quirk->clear_60;
57f70c60
GU		 745 break;
746 }
747 }
748}
749
ce4c371a 750static int ps3av_auto_videomode(struct ps3av_pkt_av_get_hw_conf *av_hw_conf)
11227fd1 751{
71a27fec 752 int i, res, id = 0, dvi = 0, rgb = 0;
11227fd1
GU		 753 struct ps3av_pkt_av_get_monitor_info monitor_info;
754 struct ps3av_info_monitor *info;
755
71a27fec 756 /* get mode id for hdmi */
101aa56d 757 for (i = 0; i < av_hw_conf->num_of_hdmi && !id; i++) {
11227fd1
GU		 758 res = ps3av_cmd_video_get_monitor_info(&monitor_info,
759 PS3AV_CMD_AVPORT_HDMI_0 +
760 i);
761 if (res < 0)
762 return -1;
763
eea820ab 764 ps3av_monitor_info_dump(&monitor_info);
101aa56d 765
11227fd1 766 info = &monitor_info.info;
57f70c60
GU		 767 ps3av_fixup_monitor_info(info);
768
101aa56d
GU		 769 switch (info->monitor_type) {
770 case PS3AV_MONITOR_TYPE_DVI:
11227fd1 771 dvi = PS3AV_MODE_DVI;
101aa56d
GU		 772 /* fall through */
773 case PS3AV_MONITOR_TYPE_HDMI:
774 id = ps3av_hdmi_get_id(info);
11227fd1
GU		 775 break;
776 }
777 }
778
101aa56d 779 if (!id) {
11227fd1 780 /* no HDMI interface or HDMI is off */
13a5e30c 781 if (ps3av->region & PS3AV_REGION_60)
71a27fec 782 id = PS3AV_DEFAULT_AVMULTI_MODE_ID_REG_60;
11227fd1 783 else
71a27fec 784 id = PS3AV_DEFAULT_AVMULTI_MODE_ID_REG_50;
13a5e30c 785 if (ps3av->region & PS3AV_REGION_RGB)
11227fd1 786 rgb = PS3AV_MODE_RGB;
fd562112 787 pr_debug("%s: Using avmulti mode %d\n", __func__, id);
11227fd1
GU		 788 }
789
71a27fec 790 return id | dvi | rgb;
11227fd1
GU		 791}
792
793static int ps3av_get_hw_conf(struct ps3av *ps3av)
794{
795 int i, j, k, res;
eea820ab 796 const struct ps3av_pkt_av_get_hw_conf *hw_conf;
11227fd1
GU		 797
798 /* get av_hw_conf */
799 res = ps3av_cmd_av_get_hw_conf(&ps3av->av_hw_conf);
800 if (res < 0)
801 return -1;
802
eea820ab
GU		 803 hw_conf = &ps3av->av_hw_conf;
804 pr_debug("av_h_conf: num of hdmi: %u\n", hw_conf->num_of_hdmi);
805 pr_debug("av_h_conf: num of avmulti: %u\n", hw_conf->num_of_avmulti);
806 pr_debug("av_h_conf: num of spdif: %u\n", hw_conf->num_of_spdif);
11227fd1
GU		 807
808 for (i = 0; i < PS3AV_HEAD_MAX; i++)
809 ps3av->head[i] = PS3AV_CMD_VIDEO_HEAD_A + i;
810 for (i = 0; i < PS3AV_OPT_PORT_MAX; i++)
811 ps3av->opt_port[i] = PS3AV_CMD_AVPORT_SPDIF_0 + i;
eea820ab 812 for (i = 0; i < hw_conf->num_of_hdmi; i++)
11227fd1 813 ps3av->av_port[i] = PS3AV_CMD_AVPORT_HDMI_0 + i;
eea820ab 814 for (j = 0; j < hw_conf->num_of_avmulti; j++)
11227fd1 815 ps3av->av_port[i + j] = PS3AV_CMD_AVPORT_AVMULTI_0 + j;
eea820ab 816 for (k = 0; k < hw_conf->num_of_spdif; k++)
11227fd1
GU		 817 ps3av->av_port[i + j + k] = PS3AV_CMD_AVPORT_SPDIF_0 + k;
818
819 /* set all audio port */
820 ps3av->audio_port = PS3AV_CMD_AUDIO_PORT_HDMI_0
821 | PS3AV_CMD_AUDIO_PORT_HDMI_1
822 | PS3AV_CMD_AUDIO_PORT_AVMULTI_0
823 | PS3AV_CMD_AUDIO_PORT_SPDIF_0 | PS3AV_CMD_AUDIO_PORT_SPDIF_1;
824
825 return 0;
826}
827
828/* set mode using id */
e7eec2fc 829int ps3av_set_video_mode(int id)
11227fd1
GU		 830{
831 int size;
832 u32 option;
833
834 size = ARRAY_SIZE(video_mode_table);
835 if ((id & PS3AV_MODE_MASK) > size - 1 || id < 0) {
13a5e30c 836 dev_dbg(&ps3av->dev->core, "%s: error id :%d\n", __func__, id);
11227fd1
GU		 837 return -EINVAL;
838 }
839
840 /* auto mode */
841 option = id & ~PS3AV_MODE_MASK;
084ffff2 842 if ((id & PS3AV_MODE_MASK) == PS3AV_MODE_AUTO) {
ce4c371a 843 id = ps3av_auto_videomode(&ps3av->av_hw_conf);
11227fd1 844 if (id < 1) {
253f04e7 845 printk(KERN_ERR "%s: invalid id :%d\n", __func__, id);
11227fd1
GU		 846 return -EINVAL;
847 }
848 id |= option;
849 }
850
851 /* set videomode */
13a5e30c
GL		 852 wait_for_completion(&ps3av->done);
853 ps3av->ps3av_mode_old = ps3av->ps3av_mode;
854 ps3av->ps3av_mode = id;
11227fd1 855 if (ps3av_set_videomode())
13a5e30c 856 ps3av->ps3av_mode = ps3av->ps3av_mode_old;
11227fd1
GU		 857
858 return 0;
859}
11227fd1
GU		 860EXPORT_SYMBOL_GPL(ps3av_set_video_mode);
861
ce4c371a 862int ps3av_get_auto_mode(void)
64072901 863{
ce4c371a 864 return ps3av_auto_videomode(&ps3av->av_hw_conf);
64072901 865}
64072901
MK		 866EXPORT_SYMBOL_GPL(ps3av_get_auto_mode);
867
11227fd1
GU		 868int ps3av_get_mode(void)
869{
13a5e30c 870 return ps3av ? ps3av->ps3av_mode : 0;
11227fd1 871}
11227fd1
GU		 872EXPORT_SYMBOL_GPL(ps3av_get_mode);
873
11227fd1
GU		 874/* get resolution by video_mode */
875int ps3av_video_mode2res(u32 id, u32 *xres, u32 *yres)
876{
877 int size;
878
879 id = id & PS3AV_MODE_MASK;
880 size = ARRAY_SIZE(video_mode_table);
881 if (id > size - 1 || id < 0) {
253f04e7 882 printk(KERN_ERR "%s: invalid mode %d\n", __func__, id);
11227fd1
GU		 883 return -EINVAL;
884 }
885 *xres = video_mode_table[id].x;
886 *yres = video_mode_table[id].y;
887 return 0;
888}
11227fd1
GU		 889EXPORT_SYMBOL_GPL(ps3av_video_mode2res);
890
891/* mute */
892int ps3av_video_mute(int mute)
893{
894 return ps3av_set_av_video_mute(mute ? PS3AV_CMD_MUTE_ON
895 : PS3AV_CMD_MUTE_OFF);
896}
11227fd1
GU		 897EXPORT_SYMBOL_GPL(ps3av_video_mute);
898
756ba83e
MM		 899/* mute analog output only */
900int ps3av_audio_mute_analog(int mute)
901{
902 int i, res;
903
904 for (i = 0; i < ps3av->av_hw_conf.num_of_avmulti; i++) {
905 res = ps3av_cmd_av_audio_mute(1,
906 &ps3av->av_port[i + ps3av->av_hw_conf.num_of_hdmi],
907 mute);
908 if (res < 0)
909 return -1;
910 }
911 return 0;
912}
913EXPORT_SYMBOL_GPL(ps3av_audio_mute_analog);
914
11227fd1
GU		 915int ps3av_audio_mute(int mute)
916{
917 return ps3av_set_audio_mute(mute ? PS3AV_CMD_MUTE_ON
918 : PS3AV_CMD_MUTE_OFF);
919}
11227fd1
GU		 920EXPORT_SYMBOL_GPL(ps3av_audio_mute);
921
0fe763c5 922static int ps3av_probe(struct ps3_system_bus_device *dev)
11227fd1
GU		 923{
924 int res;
e7eec2fc 925 int id;
11227fd1 926
13a5e30c
GL		 927 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
928 dev_dbg(&dev->core, " timeout=%d\n", timeout);
11227fd1 929
13a5e30c
GL		 930 if (ps3av) {
931 dev_err(&dev->core, "Only one ps3av device is supported\n");
932 return -EBUSY;
933 }
5caf5db8 934
13a5e30c
GL		 935 ps3av = kzalloc(sizeof(*ps3av), GFP_KERNEL);
936 if (!ps3av)
5caf5db8 937 return -ENOMEM;
11227fd1 938
13a5e30c 939 mutex_init(&ps3av->mutex);
084ffff2 940 ps3av->ps3av_mode = PS3AV_MODE_AUTO;
13a5e30c
GL		 941 ps3av->dev = dev;
942
943 INIT_WORK(&ps3av->work, ps3avd);
944 init_completion(&ps3av->done);
945 complete(&ps3av->done);
13a5e30c 946
11227fd1
GU		 947 switch (ps3_os_area_get_av_multi_out()) {
948 case PS3_PARAM_AV_MULTI_OUT_NTSC:
13a5e30c 949 ps3av->region = PS3AV_REGION_60;
11227fd1
GU		 950 break;
951 case PS3_PARAM_AV_MULTI_OUT_PAL_YCBCR:
952 case PS3_PARAM_AV_MULTI_OUT_SECAM:
13a5e30c 953 ps3av->region = PS3AV_REGION_50;
11227fd1
GU		 954 break;
955 case PS3_PARAM_AV_MULTI_OUT_PAL_RGB:
13a5e30c 956 ps3av->region = PS3AV_REGION_50 | PS3AV_REGION_RGB;
11227fd1
GU		 957 break;
958 default:
13a5e30c 959 ps3av->region = PS3AV_REGION_60;
11227fd1
GU		 960 break;
961 }
962
963 /* init avsetting modules */
964 res = ps3av_cmd_init();
965 if (res < 0)
253f04e7 966 printk(KERN_ERR "%s: ps3av_cmd_init failed %d\n", __func__,
11227fd1
GU		 967 res);
968
13a5e30c 969 ps3av_get_hw_conf(ps3av);
d7dd91ff
GU		 970
971#ifdef CONFIG_FB
972 if (fb_mode_option && !strcmp(fb_mode_option, "safe"))
973 safe_mode = 1;
974#endif /* CONFIG_FB */
ce4c371a 975 id = ps3av_auto_videomode(&ps3av->av_hw_conf);
e7eec2fc 976 if (id < 0) {
977 printk(KERN_ERR "%s: invalid id :%d\n", __func__, id);
978 res = -EINVAL;
979 goto fail;
980 }
981
d7dd91ff
GU		 982 safe_mode = 0;
983
13a5e30c
GL		 984 mutex_lock(&ps3av->mutex);
985 ps3av->ps3av_mode = id;
986 mutex_unlock(&ps3av->mutex);
11227fd1 987
13a5e30c 988 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
11227fd1
GU		 989
990 return 0;
13a5e30c
GL		 991
992fail:
993 kfree(ps3av);
994 ps3av = NULL;
e7eec2fc 995 return res;
11227fd1
GU		 996}
997
13a5e30c 998static int ps3av_remove(struct ps3_system_bus_device *dev)
11227fd1 999{
13a5e30c
GL		 1000 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1001 if (ps3av) {
11227fd1 1002 ps3av_cmd_fin();
f0200c02 1003 flush_work(&ps3av->work);
13a5e30c
GL		 1004 kfree(ps3av);
1005 ps3av = NULL;
11227fd1
GU		 1006 }
1007
13a5e30c 1008 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
11227fd1
GU		 1009 return 0;
1010}
1011
13a5e30c 1012static void ps3av_shutdown(struct ps3_system_bus_device *dev)
11227fd1 1013{
13a5e30c 1014 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
11227fd1 1015 ps3av_remove(dev);
13a5e30c 1016 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
11227fd1
GU		 1017}
1018
1019static struct ps3_vuart_port_driver ps3av_driver = {
13a5e30c
GL		 1020 .core.match_id = PS3_MATCH_ID_AV_SETTINGS,
1021 .core.core.name = "ps3_av",
11227fd1
GU		 1022 .probe = ps3av_probe,
1023 .remove = ps3av_remove,
1024 .shutdown = ps3av_shutdown,
1025};
1026
a469f563 1027static int __init ps3av_module_init(void)
11227fd1 1028{
ef596c69
GU		 1029 int error;
1030
1031 if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
1032 return -ENODEV;
1033
13a5e30c
GL		 1034 pr_debug(" -> %s:%d\n", __func__, __LINE__);
1035
ef596c69 1036 error = ps3_vuart_port_driver_register(&ps3av_driver);
11227fd1
GU		 1037 if (error) {
1038 printk(KERN_ERR
1039 "%s: ps3_vuart_port_driver_register failed %d\n",
253f04e7 1040 __func__, error);
11227fd1
GU		 1041 return error;
1042 }
1043
13a5e30c 1044 pr_debug(" <- %s:%d\n", __func__, __LINE__);
11227fd1
GU		 1045 return error;
1046}
1047
1048static void __exit ps3av_module_exit(void)
1049{
13a5e30c 1050 pr_debug(" -> %s:%d\n", __func__, __LINE__);
11227fd1 1051 ps3_vuart_port_driver_unregister(&ps3av_driver);
13a5e30c 1052 pr_debug(" <- %s:%d\n", __func__, __LINE__);
11227fd1
GU		 1053}
1054
1055subsys_initcall(ps3av_module_init);
1056module_exit(ps3av_module_exit);
13a5e30c
GL		 1057
1058MODULE_LICENSE("GPL v2");
1059MODULE_DESCRIPTION("PS3 AV Settings Driver");
1060MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1061MODULE_ALIAS(PS3_MODULE_ALIAS_AV_SETTINGS);
Linux 6.x block layer and io_uring tree(s)