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d32d9864 MR |
1 | /* |
2 | * tc358743 - Toshiba HDMI to CSI-2 bridge | |
3 | * | |
4 | * Copyright 2015 Cisco Systems, Inc. and/or its affiliates. All rights | |
5 | * reserved. | |
6 | * | |
7 | * This program is free software; you may redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; version 2 of the License. | |
10 | * | |
11 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
12 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
13 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
15 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
16 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
17 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
18 | * SOFTWARE. | |
19 | * | |
20 | */ | |
21 | ||
22 | /* | |
23 | * References (c = chapter, p = page): | |
24 | * REF_01 - Toshiba, TC358743XBG (H2C), Functional Specification, Rev 0.60 | |
25 | * REF_02 - Toshiba, TC358743XBG_HDMI-CSI_Tv11p_nm.xls | |
26 | */ | |
27 | ||
28 | #include <linux/kernel.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/i2c.h> | |
25614824 | 32 | #include <linux/clk.h> |
d32d9864 | 33 | #include <linux/delay.h> |
25614824 | 34 | #include <linux/gpio/consumer.h> |
d747b806 | 35 | #include <linux/interrupt.h> |
d32d9864 MR |
36 | #include <linux/videodev2.h> |
37 | #include <linux/workqueue.h> | |
38 | #include <linux/v4l2-dv-timings.h> | |
39 | #include <linux/hdmi.h> | |
40 | #include <media/v4l2-dv-timings.h> | |
41 | #include <media/v4l2-device.h> | |
42 | #include <media/v4l2-ctrls.h> | |
1140f919 | 43 | #include <media/v4l2-event.h> |
25614824 | 44 | #include <media/v4l2-of.h> |
b5dcee22 | 45 | #include <media/i2c/tc358743.h> |
d32d9864 MR |
46 | |
47 | #include "tc358743_regs.h" | |
48 | ||
49 | static int debug; | |
50 | module_param(debug, int, 0644); | |
51 | MODULE_PARM_DESC(debug, "debug level (0-3)"); | |
52 | ||
53 | MODULE_DESCRIPTION("Toshiba TC358743 HDMI to CSI-2 bridge driver"); | |
54 | MODULE_AUTHOR("Ramakrishnan Muthukrishnan <ram@rkrishnan.org>"); | |
55 | MODULE_AUTHOR("Mikhail Khelik <mkhelik@cisco.com>"); | |
56 | MODULE_AUTHOR("Mats Randgaard <matrandg@cisco.com>"); | |
57 | MODULE_LICENSE("GPL"); | |
58 | ||
59 | #define EDID_NUM_BLOCKS_MAX 8 | |
60 | #define EDID_BLOCK_SIZE 128 | |
61 | ||
fcae73fa | 62 | #define I2C_MAX_XFER_SIZE (EDID_BLOCK_SIZE + 2) |
1d88f831 | 63 | |
d32d9864 MR |
64 | static const struct v4l2_dv_timings_cap tc358743_timings_cap = { |
65 | .type = V4L2_DV_BT_656_1120, | |
66 | /* keep this initialization for compatibility with GCC < 4.4.6 */ | |
67 | .reserved = { 0 }, | |
68 | /* Pixel clock from REF_01 p. 20. Min/max height/width are unknown */ | |
69 | V4L2_INIT_BT_TIMINGS(1, 10000, 1, 10000, 0, 165000000, | |
70 | V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | | |
71 | V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, | |
72 | V4L2_DV_BT_CAP_PROGRESSIVE | | |
73 | V4L2_DV_BT_CAP_REDUCED_BLANKING | | |
74 | V4L2_DV_BT_CAP_CUSTOM) | |
75 | }; | |
76 | ||
77 | struct tc358743_state { | |
78 | struct tc358743_platform_data pdata; | |
25614824 | 79 | struct v4l2_of_bus_mipi_csi2 bus; |
d32d9864 MR |
80 | struct v4l2_subdev sd; |
81 | struct media_pad pad; | |
82 | struct v4l2_ctrl_handler hdl; | |
83 | struct i2c_client *i2c_client; | |
84 | /* CONFCTL is modified in ops and tc358743_hdmi_sys_int_handler */ | |
85 | struct mutex confctl_mutex; | |
86 | ||
87 | /* controls */ | |
88 | struct v4l2_ctrl *detect_tx_5v_ctrl; | |
89 | struct v4l2_ctrl *audio_sampling_rate_ctrl; | |
90 | struct v4l2_ctrl *audio_present_ctrl; | |
91 | ||
92 | /* work queues */ | |
93 | struct workqueue_struct *work_queues; | |
94 | struct delayed_work delayed_work_enable_hotplug; | |
95 | ||
96 | /* edid */ | |
97 | u8 edid_blocks_written; | |
98 | ||
99 | struct v4l2_dv_timings timings; | |
100 | u32 mbus_fmt_code; | |
25614824 PZ |
101 | |
102 | struct gpio_desc *reset_gpio; | |
d32d9864 MR |
103 | }; |
104 | ||
105 | static void tc358743_enable_interrupts(struct v4l2_subdev *sd, | |
106 | bool cable_connected); | |
107 | static int tc358743_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd); | |
108 | ||
109 | static inline struct tc358743_state *to_state(struct v4l2_subdev *sd) | |
110 | { | |
111 | return container_of(sd, struct tc358743_state, sd); | |
112 | } | |
113 | ||
114 | /* --------------- I2C --------------- */ | |
115 | ||
116 | static void i2c_rd(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n) | |
117 | { | |
118 | struct tc358743_state *state = to_state(sd); | |
119 | struct i2c_client *client = state->i2c_client; | |
120 | int err; | |
121 | u8 buf[2] = { reg >> 8, reg & 0xff }; | |
122 | struct i2c_msg msgs[] = { | |
123 | { | |
124 | .addr = client->addr, | |
125 | .flags = 0, | |
126 | .len = 2, | |
127 | .buf = buf, | |
128 | }, | |
129 | { | |
130 | .addr = client->addr, | |
131 | .flags = I2C_M_RD, | |
132 | .len = n, | |
133 | .buf = values, | |
134 | }, | |
135 | }; | |
136 | ||
137 | err = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); | |
138 | if (err != ARRAY_SIZE(msgs)) { | |
139 | v4l2_err(sd, "%s: reading register 0x%x from 0x%x failed\n", | |
140 | __func__, reg, client->addr); | |
141 | } | |
142 | } | |
143 | ||
144 | static void i2c_wr(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n) | |
145 | { | |
146 | struct tc358743_state *state = to_state(sd); | |
147 | struct i2c_client *client = state->i2c_client; | |
148 | int err, i; | |
149 | struct i2c_msg msg; | |
fcae73fa | 150 | u8 data[I2C_MAX_XFER_SIZE]; |
1d88f831 | 151 | |
fcae73fa MR |
152 | if ((2 + n) > I2C_MAX_XFER_SIZE) { |
153 | n = I2C_MAX_XFER_SIZE - 2; | |
1d88f831 MCC |
154 | v4l2_warn(sd, "i2c wr reg=%04x: len=%d is too big!\n", |
155 | reg, 2 + n); | |
fcae73fa | 156 | } |
d32d9864 MR |
157 | |
158 | msg.addr = client->addr; | |
159 | msg.buf = data; | |
160 | msg.len = 2 + n; | |
161 | msg.flags = 0; | |
162 | ||
163 | data[0] = reg >> 8; | |
164 | data[1] = reg & 0xff; | |
165 | ||
166 | for (i = 0; i < n; i++) | |
167 | data[2 + i] = values[i]; | |
168 | ||
169 | err = i2c_transfer(client->adapter, &msg, 1); | |
170 | if (err != 1) { | |
171 | v4l2_err(sd, "%s: writing register 0x%x from 0x%x failed\n", | |
172 | __func__, reg, client->addr); | |
173 | return; | |
174 | } | |
175 | ||
176 | if (debug < 3) | |
177 | return; | |
178 | ||
179 | switch (n) { | |
180 | case 1: | |
181 | v4l2_info(sd, "I2C write 0x%04x = 0x%02x", | |
182 | reg, data[2]); | |
183 | break; | |
184 | case 2: | |
185 | v4l2_info(sd, "I2C write 0x%04x = 0x%02x%02x", | |
186 | reg, data[3], data[2]); | |
187 | break; | |
188 | case 4: | |
189 | v4l2_info(sd, "I2C write 0x%04x = 0x%02x%02x%02x%02x", | |
190 | reg, data[5], data[4], data[3], data[2]); | |
191 | break; | |
192 | default: | |
193 | v4l2_info(sd, "I2C write %d bytes from address 0x%04x\n", | |
194 | n, reg); | |
195 | } | |
196 | } | |
197 | ||
198 | static u8 i2c_rd8(struct v4l2_subdev *sd, u16 reg) | |
199 | { | |
200 | u8 val; | |
201 | ||
202 | i2c_rd(sd, reg, &val, 1); | |
203 | ||
204 | return val; | |
205 | } | |
206 | ||
207 | static void i2c_wr8(struct v4l2_subdev *sd, u16 reg, u8 val) | |
208 | { | |
209 | i2c_wr(sd, reg, &val, 1); | |
210 | } | |
211 | ||
212 | static void i2c_wr8_and_or(struct v4l2_subdev *sd, u16 reg, | |
213 | u8 mask, u8 val) | |
214 | { | |
215 | i2c_wr8(sd, reg, (i2c_rd8(sd, reg) & mask) | val); | |
216 | } | |
217 | ||
218 | static u16 i2c_rd16(struct v4l2_subdev *sd, u16 reg) | |
219 | { | |
220 | u16 val; | |
221 | ||
222 | i2c_rd(sd, reg, (u8 *)&val, 2); | |
223 | ||
224 | return val; | |
225 | } | |
226 | ||
227 | static void i2c_wr16(struct v4l2_subdev *sd, u16 reg, u16 val) | |
228 | { | |
229 | i2c_wr(sd, reg, (u8 *)&val, 2); | |
230 | } | |
231 | ||
232 | static void i2c_wr16_and_or(struct v4l2_subdev *sd, u16 reg, u16 mask, u16 val) | |
233 | { | |
234 | i2c_wr16(sd, reg, (i2c_rd16(sd, reg) & mask) | val); | |
235 | } | |
236 | ||
237 | static u32 i2c_rd32(struct v4l2_subdev *sd, u16 reg) | |
238 | { | |
239 | u32 val; | |
240 | ||
241 | i2c_rd(sd, reg, (u8 *)&val, 4); | |
242 | ||
243 | return val; | |
244 | } | |
245 | ||
246 | static void i2c_wr32(struct v4l2_subdev *sd, u16 reg, u32 val) | |
247 | { | |
248 | i2c_wr(sd, reg, (u8 *)&val, 4); | |
249 | } | |
250 | ||
251 | /* --------------- STATUS --------------- */ | |
252 | ||
253 | static inline bool is_hdmi(struct v4l2_subdev *sd) | |
254 | { | |
255 | return i2c_rd8(sd, SYS_STATUS) & MASK_S_HDMI; | |
256 | } | |
257 | ||
258 | static inline bool tx_5v_power_present(struct v4l2_subdev *sd) | |
259 | { | |
260 | return i2c_rd8(sd, SYS_STATUS) & MASK_S_DDC5V; | |
261 | } | |
262 | ||
263 | static inline bool no_signal(struct v4l2_subdev *sd) | |
264 | { | |
265 | return !(i2c_rd8(sd, SYS_STATUS) & MASK_S_TMDS); | |
266 | } | |
267 | ||
268 | static inline bool no_sync(struct v4l2_subdev *sd) | |
269 | { | |
270 | return !(i2c_rd8(sd, SYS_STATUS) & MASK_S_SYNC); | |
271 | } | |
272 | ||
273 | static inline bool audio_present(struct v4l2_subdev *sd) | |
274 | { | |
275 | return i2c_rd8(sd, AU_STATUS0) & MASK_S_A_SAMPLE; | |
276 | } | |
277 | ||
278 | static int get_audio_sampling_rate(struct v4l2_subdev *sd) | |
279 | { | |
280 | static const int code_to_rate[] = { | |
281 | 44100, 0, 48000, 32000, 22050, 384000, 24000, 352800, | |
282 | 88200, 768000, 96000, 705600, 176400, 0, 192000, 0 | |
283 | }; | |
284 | ||
285 | /* Register FS_SET is not cleared when the cable is disconnected */ | |
286 | if (no_signal(sd)) | |
287 | return 0; | |
288 | ||
289 | return code_to_rate[i2c_rd8(sd, FS_SET) & MASK_FS]; | |
290 | } | |
291 | ||
292 | static unsigned tc358743_num_csi_lanes_in_use(struct v4l2_subdev *sd) | |
293 | { | |
294 | return ((i2c_rd32(sd, CSI_CONTROL) & MASK_NOL) >> 1) + 1; | |
295 | } | |
296 | ||
297 | /* --------------- TIMINGS --------------- */ | |
298 | ||
299 | static inline unsigned fps(const struct v4l2_bt_timings *t) | |
300 | { | |
301 | if (!V4L2_DV_BT_FRAME_HEIGHT(t) || !V4L2_DV_BT_FRAME_WIDTH(t)) | |
302 | return 0; | |
303 | ||
304 | return DIV_ROUND_CLOSEST((unsigned)t->pixelclock, | |
305 | V4L2_DV_BT_FRAME_HEIGHT(t) * V4L2_DV_BT_FRAME_WIDTH(t)); | |
306 | } | |
307 | ||
308 | static int tc358743_get_detected_timings(struct v4l2_subdev *sd, | |
309 | struct v4l2_dv_timings *timings) | |
310 | { | |
311 | struct v4l2_bt_timings *bt = &timings->bt; | |
312 | unsigned width, height, frame_width, frame_height, frame_interval, fps; | |
313 | ||
314 | memset(timings, 0, sizeof(struct v4l2_dv_timings)); | |
315 | ||
316 | if (no_signal(sd)) { | |
317 | v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__); | |
318 | return -ENOLINK; | |
319 | } | |
320 | if (no_sync(sd)) { | |
321 | v4l2_dbg(1, debug, sd, "%s: no sync on signal\n", __func__); | |
322 | return -ENOLCK; | |
323 | } | |
324 | ||
325 | timings->type = V4L2_DV_BT_656_1120; | |
326 | bt->interlaced = i2c_rd8(sd, VI_STATUS1) & MASK_S_V_INTERLACE ? | |
327 | V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE; | |
328 | ||
329 | width = ((i2c_rd8(sd, DE_WIDTH_H_HI) & 0x1f) << 8) + | |
330 | i2c_rd8(sd, DE_WIDTH_H_LO); | |
331 | height = ((i2c_rd8(sd, DE_WIDTH_V_HI) & 0x1f) << 8) + | |
332 | i2c_rd8(sd, DE_WIDTH_V_LO); | |
333 | frame_width = ((i2c_rd8(sd, H_SIZE_HI) & 0x1f) << 8) + | |
334 | i2c_rd8(sd, H_SIZE_LO); | |
335 | frame_height = (((i2c_rd8(sd, V_SIZE_HI) & 0x3f) << 8) + | |
336 | i2c_rd8(sd, V_SIZE_LO)) / 2; | |
337 | /* frame interval in milliseconds * 10 | |
338 | * Require SYS_FREQ0 and SYS_FREQ1 are precisely set */ | |
339 | frame_interval = ((i2c_rd8(sd, FV_CNT_HI) & 0x3) << 8) + | |
340 | i2c_rd8(sd, FV_CNT_LO); | |
341 | fps = (frame_interval > 0) ? | |
342 | DIV_ROUND_CLOSEST(10000, frame_interval) : 0; | |
343 | ||
344 | bt->width = width; | |
345 | bt->height = height; | |
346 | bt->vsync = frame_height - height; | |
347 | bt->hsync = frame_width - width; | |
348 | bt->pixelclock = frame_width * frame_height * fps; | |
349 | if (bt->interlaced == V4L2_DV_INTERLACED) { | |
350 | bt->height *= 2; | |
351 | bt->il_vsync = bt->vsync + 1; | |
352 | bt->pixelclock /= 2; | |
353 | } | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | /* --------------- HOTPLUG / HDCP / EDID --------------- */ | |
359 | ||
360 | static void tc358743_delayed_work_enable_hotplug(struct work_struct *work) | |
361 | { | |
362 | struct delayed_work *dwork = to_delayed_work(work); | |
363 | struct tc358743_state *state = container_of(dwork, | |
364 | struct tc358743_state, delayed_work_enable_hotplug); | |
365 | struct v4l2_subdev *sd = &state->sd; | |
366 | ||
367 | v4l2_dbg(2, debug, sd, "%s:\n", __func__); | |
368 | ||
369 | i2c_wr8_and_or(sd, HPD_CTL, ~MASK_HPD_OUT0, MASK_HPD_OUT0); | |
370 | } | |
371 | ||
372 | static void tc358743_set_hdmi_hdcp(struct v4l2_subdev *sd, bool enable) | |
373 | { | |
374 | v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? | |
375 | "enable" : "disable"); | |
376 | ||
377 | i2c_wr8_and_or(sd, HDCP_REG1, | |
378 | ~(MASK_AUTH_UNAUTH_SEL | MASK_AUTH_UNAUTH), | |
379 | MASK_AUTH_UNAUTH_SEL_16_FRAMES | MASK_AUTH_UNAUTH_AUTO); | |
380 | ||
381 | i2c_wr8_and_or(sd, HDCP_REG2, ~MASK_AUTO_P3_RESET, | |
382 | SET_AUTO_P3_RESET_FRAMES(0x0f)); | |
383 | ||
384 | /* HDCP is disabled by configuring the receiver as HDCP repeater. The | |
385 | * repeater mode require software support to work, so HDCP | |
386 | * authentication will fail. | |
387 | */ | |
388 | i2c_wr8_and_or(sd, HDCP_REG3, ~KEY_RD_CMD, enable ? KEY_RD_CMD : 0); | |
389 | i2c_wr8_and_or(sd, HDCP_MODE, ~(MASK_AUTO_CLR | MASK_MODE_RST_TN), | |
390 | enable ? (MASK_AUTO_CLR | MASK_MODE_RST_TN) : 0); | |
391 | ||
392 | /* Apple MacBook Pro gen.8 has a bug that makes it freeze every fifth | |
393 | * second when HDCP is disabled, but the MAX_EXCED bit is handled | |
394 | * correctly and HDCP is disabled on the HDMI output. | |
395 | */ | |
396 | i2c_wr8_and_or(sd, BSTATUS1, ~MASK_MAX_EXCED, | |
397 | enable ? 0 : MASK_MAX_EXCED); | |
398 | i2c_wr8_and_or(sd, BCAPS, ~(MASK_REPEATER | MASK_READY), | |
399 | enable ? 0 : MASK_REPEATER | MASK_READY); | |
400 | } | |
401 | ||
402 | static void tc358743_disable_edid(struct v4l2_subdev *sd) | |
403 | { | |
404 | struct tc358743_state *state = to_state(sd); | |
405 | ||
406 | v4l2_dbg(2, debug, sd, "%s:\n", __func__); | |
407 | ||
408 | cancel_delayed_work_sync(&state->delayed_work_enable_hotplug); | |
409 | ||
410 | /* DDC access to EDID is also disabled when hotplug is disabled. See | |
411 | * register DDC_CTL */ | |
412 | i2c_wr8_and_or(sd, HPD_CTL, ~MASK_HPD_OUT0, 0x0); | |
413 | } | |
414 | ||
415 | static void tc358743_enable_edid(struct v4l2_subdev *sd) | |
416 | { | |
417 | struct tc358743_state *state = to_state(sd); | |
418 | ||
419 | if (state->edid_blocks_written == 0) { | |
420 | v4l2_dbg(2, debug, sd, "%s: no EDID -> no hotplug\n", __func__); | |
421 | return; | |
422 | } | |
423 | ||
424 | v4l2_dbg(2, debug, sd, "%s:\n", __func__); | |
425 | ||
426 | /* Enable hotplug after 100 ms. DDC access to EDID is also enabled when | |
427 | * hotplug is enabled. See register DDC_CTL */ | |
428 | queue_delayed_work(state->work_queues, | |
429 | &state->delayed_work_enable_hotplug, HZ / 10); | |
430 | ||
431 | tc358743_enable_interrupts(sd, true); | |
432 | tc358743_s_ctrl_detect_tx_5v(sd); | |
433 | } | |
434 | ||
435 | static void tc358743_erase_bksv(struct v4l2_subdev *sd) | |
436 | { | |
437 | int i; | |
438 | ||
439 | for (i = 0; i < 5; i++) | |
440 | i2c_wr8(sd, BKSV + i, 0); | |
441 | } | |
442 | ||
443 | /* --------------- AVI infoframe --------------- */ | |
444 | ||
445 | static void print_avi_infoframe(struct v4l2_subdev *sd) | |
446 | { | |
447 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
448 | struct device *dev = &client->dev; | |
449 | union hdmi_infoframe frame; | |
450 | u8 buffer[HDMI_INFOFRAME_SIZE(AVI)]; | |
451 | ||
452 | if (!is_hdmi(sd)) { | |
453 | v4l2_info(sd, "DVI-D signal - AVI infoframe not supported\n"); | |
454 | return; | |
455 | } | |
456 | ||
457 | i2c_rd(sd, PK_AVI_0HEAD, buffer, HDMI_INFOFRAME_SIZE(AVI)); | |
458 | ||
459 | if (hdmi_infoframe_unpack(&frame, buffer) < 0) { | |
460 | v4l2_err(sd, "%s: unpack of AVI infoframe failed\n", __func__); | |
461 | return; | |
462 | } | |
463 | ||
464 | hdmi_infoframe_log(KERN_INFO, dev, &frame); | |
465 | } | |
466 | ||
467 | /* --------------- CTRLS --------------- */ | |
468 | ||
469 | static int tc358743_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd) | |
470 | { | |
471 | struct tc358743_state *state = to_state(sd); | |
472 | ||
473 | return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, | |
474 | tx_5v_power_present(sd)); | |
475 | } | |
476 | ||
477 | static int tc358743_s_ctrl_audio_sampling_rate(struct v4l2_subdev *sd) | |
478 | { | |
479 | struct tc358743_state *state = to_state(sd); | |
480 | ||
481 | return v4l2_ctrl_s_ctrl(state->audio_sampling_rate_ctrl, | |
482 | get_audio_sampling_rate(sd)); | |
483 | } | |
484 | ||
485 | static int tc358743_s_ctrl_audio_present(struct v4l2_subdev *sd) | |
486 | { | |
487 | struct tc358743_state *state = to_state(sd); | |
488 | ||
489 | return v4l2_ctrl_s_ctrl(state->audio_present_ctrl, | |
490 | audio_present(sd)); | |
491 | } | |
492 | ||
493 | static int tc358743_update_controls(struct v4l2_subdev *sd) | |
494 | { | |
495 | int ret = 0; | |
496 | ||
497 | ret |= tc358743_s_ctrl_detect_tx_5v(sd); | |
498 | ret |= tc358743_s_ctrl_audio_sampling_rate(sd); | |
499 | ret |= tc358743_s_ctrl_audio_present(sd); | |
500 | ||
501 | return ret; | |
502 | } | |
503 | ||
504 | /* --------------- INIT --------------- */ | |
505 | ||
506 | static void tc358743_reset_phy(struct v4l2_subdev *sd) | |
507 | { | |
508 | v4l2_dbg(1, debug, sd, "%s:\n", __func__); | |
509 | ||
510 | i2c_wr8_and_or(sd, PHY_RST, ~MASK_RESET_CTRL, 0); | |
511 | i2c_wr8_and_or(sd, PHY_RST, ~MASK_RESET_CTRL, MASK_RESET_CTRL); | |
512 | } | |
513 | ||
514 | static void tc358743_reset(struct v4l2_subdev *sd, uint16_t mask) | |
515 | { | |
516 | u16 sysctl = i2c_rd16(sd, SYSCTL); | |
517 | ||
518 | i2c_wr16(sd, SYSCTL, sysctl | mask); | |
519 | i2c_wr16(sd, SYSCTL, sysctl & ~mask); | |
520 | } | |
521 | ||
522 | static inline void tc358743_sleep_mode(struct v4l2_subdev *sd, bool enable) | |
523 | { | |
524 | i2c_wr16_and_or(sd, SYSCTL, ~MASK_SLEEP, | |
525 | enable ? MASK_SLEEP : 0); | |
526 | } | |
527 | ||
528 | static inline void enable_stream(struct v4l2_subdev *sd, bool enable) | |
529 | { | |
530 | struct tc358743_state *state = to_state(sd); | |
531 | ||
532 | v4l2_dbg(3, debug, sd, "%s: %sable\n", | |
533 | __func__, enable ? "en" : "dis"); | |
534 | ||
535 | if (enable) { | |
536 | /* It is critical for CSI receiver to see lane transition | |
537 | * LP11->HS. Set to non-continuous mode to enable clock lane | |
538 | * LP11 state. */ | |
539 | i2c_wr32(sd, TXOPTIONCNTRL, 0); | |
540 | /* Set to continuous mode to trigger LP11->HS transition */ | |
541 | i2c_wr32(sd, TXOPTIONCNTRL, MASK_CONTCLKMODE); | |
542 | /* Unmute video */ | |
543 | i2c_wr8(sd, VI_MUTE, MASK_AUTO_MUTE); | |
544 | } else { | |
545 | /* Mute video so that all data lanes go to LSP11 state. | |
546 | * No data is output to CSI Tx block. */ | |
547 | i2c_wr8(sd, VI_MUTE, MASK_AUTO_MUTE | MASK_VI_MUTE); | |
548 | } | |
549 | ||
550 | mutex_lock(&state->confctl_mutex); | |
551 | i2c_wr16_and_or(sd, CONFCTL, ~(MASK_VBUFEN | MASK_ABUFEN), | |
552 | enable ? (MASK_VBUFEN | MASK_ABUFEN) : 0x0); | |
553 | mutex_unlock(&state->confctl_mutex); | |
554 | } | |
555 | ||
556 | static void tc358743_set_pll(struct v4l2_subdev *sd) | |
557 | { | |
558 | struct tc358743_state *state = to_state(sd); | |
559 | struct tc358743_platform_data *pdata = &state->pdata; | |
560 | u16 pllctl0 = i2c_rd16(sd, PLLCTL0); | |
561 | u16 pllctl1 = i2c_rd16(sd, PLLCTL1); | |
562 | u16 pllctl0_new = SET_PLL_PRD(pdata->pll_prd) | | |
563 | SET_PLL_FBD(pdata->pll_fbd); | |
564 | u32 hsck = (pdata->refclk_hz / pdata->pll_prd) * pdata->pll_fbd; | |
565 | ||
566 | v4l2_dbg(2, debug, sd, "%s:\n", __func__); | |
567 | ||
568 | /* Only rewrite when needed (new value or disabled), since rewriting | |
569 | * triggers another format change event. */ | |
570 | if ((pllctl0 != pllctl0_new) || ((pllctl1 & MASK_PLL_EN) == 0)) { | |
571 | u16 pll_frs; | |
572 | ||
573 | if (hsck > 500000000) | |
574 | pll_frs = 0x0; | |
575 | else if (hsck > 250000000) | |
576 | pll_frs = 0x1; | |
577 | else if (hsck > 125000000) | |
578 | pll_frs = 0x2; | |
579 | else | |
580 | pll_frs = 0x3; | |
581 | ||
582 | v4l2_dbg(1, debug, sd, "%s: updating PLL clock\n", __func__); | |
583 | tc358743_sleep_mode(sd, true); | |
584 | i2c_wr16(sd, PLLCTL0, pllctl0_new); | |
585 | i2c_wr16_and_or(sd, PLLCTL1, | |
586 | ~(MASK_PLL_FRS | MASK_RESETB | MASK_PLL_EN), | |
587 | (SET_PLL_FRS(pll_frs) | MASK_RESETB | | |
588 | MASK_PLL_EN)); | |
589 | udelay(10); /* REF_02, Sheet "Source HDMI" */ | |
590 | i2c_wr16_and_or(sd, PLLCTL1, ~MASK_CKEN, MASK_CKEN); | |
591 | tc358743_sleep_mode(sd, false); | |
592 | } | |
593 | } | |
594 | ||
595 | static void tc358743_set_ref_clk(struct v4l2_subdev *sd) | |
596 | { | |
597 | struct tc358743_state *state = to_state(sd); | |
598 | struct tc358743_platform_data *pdata = &state->pdata; | |
599 | u32 sys_freq; | |
600 | u32 lockdet_ref; | |
601 | u16 fh_min; | |
602 | u16 fh_max; | |
603 | ||
604 | BUG_ON(!(pdata->refclk_hz == 26000000 || | |
605 | pdata->refclk_hz == 27000000 || | |
606 | pdata->refclk_hz == 42000000)); | |
607 | ||
608 | sys_freq = pdata->refclk_hz / 10000; | |
609 | i2c_wr8(sd, SYS_FREQ0, sys_freq & 0x00ff); | |
610 | i2c_wr8(sd, SYS_FREQ1, (sys_freq & 0xff00) >> 8); | |
611 | ||
612 | i2c_wr8_and_or(sd, PHY_CTL0, ~MASK_PHY_SYSCLK_IND, | |
613 | (pdata->refclk_hz == 42000000) ? | |
614 | MASK_PHY_SYSCLK_IND : 0x0); | |
615 | ||
616 | fh_min = pdata->refclk_hz / 100000; | |
617 | i2c_wr8(sd, FH_MIN0, fh_min & 0x00ff); | |
618 | i2c_wr8(sd, FH_MIN1, (fh_min & 0xff00) >> 8); | |
619 | ||
620 | fh_max = (fh_min * 66) / 10; | |
621 | i2c_wr8(sd, FH_MAX0, fh_max & 0x00ff); | |
622 | i2c_wr8(sd, FH_MAX1, (fh_max & 0xff00) >> 8); | |
623 | ||
624 | lockdet_ref = pdata->refclk_hz / 100; | |
625 | i2c_wr8(sd, LOCKDET_REF0, lockdet_ref & 0x0000ff); | |
626 | i2c_wr8(sd, LOCKDET_REF1, (lockdet_ref & 0x00ff00) >> 8); | |
627 | i2c_wr8(sd, LOCKDET_REF2, (lockdet_ref & 0x0f0000) >> 16); | |
628 | ||
629 | i2c_wr8_and_or(sd, NCO_F0_MOD, ~MASK_NCO_F0_MOD, | |
630 | (pdata->refclk_hz == 27000000) ? | |
631 | MASK_NCO_F0_MOD_27MHZ : 0x0); | |
632 | } | |
633 | ||
634 | static void tc358743_set_csi_color_space(struct v4l2_subdev *sd) | |
635 | { | |
636 | struct tc358743_state *state = to_state(sd); | |
637 | ||
638 | switch (state->mbus_fmt_code) { | |
639 | case MEDIA_BUS_FMT_UYVY8_1X16: | |
640 | v4l2_dbg(2, debug, sd, "%s: YCbCr 422 16-bit\n", __func__); | |
641 | i2c_wr8_and_or(sd, VOUT_SET2, | |
642 | ~(MASK_SEL422 | MASK_VOUT_422FIL_100) & 0xff, | |
643 | MASK_SEL422 | MASK_VOUT_422FIL_100); | |
644 | i2c_wr8_and_or(sd, VI_REP, ~MASK_VOUT_COLOR_SEL & 0xff, | |
645 | MASK_VOUT_COLOR_601_YCBCR_LIMITED); | |
646 | mutex_lock(&state->confctl_mutex); | |
647 | i2c_wr16_and_or(sd, CONFCTL, ~MASK_YCBCRFMT, | |
648 | MASK_YCBCRFMT_422_8_BIT); | |
649 | mutex_unlock(&state->confctl_mutex); | |
650 | break; | |
651 | case MEDIA_BUS_FMT_RGB888_1X24: | |
652 | v4l2_dbg(2, debug, sd, "%s: RGB 888 24-bit\n", __func__); | |
653 | i2c_wr8_and_or(sd, VOUT_SET2, | |
654 | ~(MASK_SEL422 | MASK_VOUT_422FIL_100) & 0xff, | |
655 | 0x00); | |
656 | i2c_wr8_and_or(sd, VI_REP, ~MASK_VOUT_COLOR_SEL & 0xff, | |
657 | MASK_VOUT_COLOR_RGB_FULL); | |
658 | mutex_lock(&state->confctl_mutex); | |
659 | i2c_wr16_and_or(sd, CONFCTL, ~MASK_YCBCRFMT, 0); | |
660 | mutex_unlock(&state->confctl_mutex); | |
661 | break; | |
662 | default: | |
663 | v4l2_dbg(2, debug, sd, "%s: Unsupported format code 0x%x\n", | |
664 | __func__, state->mbus_fmt_code); | |
665 | } | |
666 | } | |
667 | ||
668 | static unsigned tc358743_num_csi_lanes_needed(struct v4l2_subdev *sd) | |
669 | { | |
670 | struct tc358743_state *state = to_state(sd); | |
671 | struct v4l2_bt_timings *bt = &state->timings.bt; | |
672 | struct tc358743_platform_data *pdata = &state->pdata; | |
673 | u32 bits_pr_pixel = | |
674 | (state->mbus_fmt_code == MEDIA_BUS_FMT_UYVY8_1X16) ? 16 : 24; | |
675 | u32 bps = bt->width * bt->height * fps(bt) * bits_pr_pixel; | |
676 | u32 bps_pr_lane = (pdata->refclk_hz / pdata->pll_prd) * pdata->pll_fbd; | |
677 | ||
678 | return DIV_ROUND_UP(bps, bps_pr_lane); | |
679 | } | |
680 | ||
681 | static void tc358743_set_csi(struct v4l2_subdev *sd) | |
682 | { | |
683 | struct tc358743_state *state = to_state(sd); | |
684 | struct tc358743_platform_data *pdata = &state->pdata; | |
685 | unsigned lanes = tc358743_num_csi_lanes_needed(sd); | |
686 | ||
687 | v4l2_dbg(3, debug, sd, "%s:\n", __func__); | |
688 | ||
689 | tc358743_reset(sd, MASK_CTXRST); | |
690 | ||
691 | if (lanes < 1) | |
692 | i2c_wr32(sd, CLW_CNTRL, MASK_CLW_LANEDISABLE); | |
693 | if (lanes < 1) | |
694 | i2c_wr32(sd, D0W_CNTRL, MASK_D0W_LANEDISABLE); | |
695 | if (lanes < 2) | |
696 | i2c_wr32(sd, D1W_CNTRL, MASK_D1W_LANEDISABLE); | |
697 | if (lanes < 3) | |
698 | i2c_wr32(sd, D2W_CNTRL, MASK_D2W_LANEDISABLE); | |
699 | if (lanes < 4) | |
700 | i2c_wr32(sd, D3W_CNTRL, MASK_D3W_LANEDISABLE); | |
701 | ||
702 | i2c_wr32(sd, LINEINITCNT, pdata->lineinitcnt); | |
703 | i2c_wr32(sd, LPTXTIMECNT, pdata->lptxtimecnt); | |
704 | i2c_wr32(sd, TCLK_HEADERCNT, pdata->tclk_headercnt); | |
705 | i2c_wr32(sd, TCLK_TRAILCNT, pdata->tclk_trailcnt); | |
706 | i2c_wr32(sd, THS_HEADERCNT, pdata->ths_headercnt); | |
707 | i2c_wr32(sd, TWAKEUP, pdata->twakeup); | |
708 | i2c_wr32(sd, TCLK_POSTCNT, pdata->tclk_postcnt); | |
709 | i2c_wr32(sd, THS_TRAILCNT, pdata->ths_trailcnt); | |
710 | i2c_wr32(sd, HSTXVREGCNT, pdata->hstxvregcnt); | |
711 | ||
712 | i2c_wr32(sd, HSTXVREGEN, | |
713 | ((lanes > 0) ? MASK_CLM_HSTXVREGEN : 0x0) | | |
714 | ((lanes > 0) ? MASK_D0M_HSTXVREGEN : 0x0) | | |
715 | ((lanes > 1) ? MASK_D1M_HSTXVREGEN : 0x0) | | |
716 | ((lanes > 2) ? MASK_D2M_HSTXVREGEN : 0x0) | | |
717 | ((lanes > 3) ? MASK_D3M_HSTXVREGEN : 0x0)); | |
718 | ||
25614824 PZ |
719 | i2c_wr32(sd, TXOPTIONCNTRL, (state->bus.flags & |
720 | V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) ? MASK_CONTCLKMODE : 0); | |
d32d9864 MR |
721 | i2c_wr32(sd, STARTCNTRL, MASK_START); |
722 | i2c_wr32(sd, CSI_START, MASK_STRT); | |
723 | ||
724 | i2c_wr32(sd, CSI_CONFW, MASK_MODE_SET | | |
725 | MASK_ADDRESS_CSI_CONTROL | | |
726 | MASK_CSI_MODE | | |
727 | MASK_TXHSMD | | |
728 | ((lanes == 4) ? MASK_NOL_4 : | |
729 | (lanes == 3) ? MASK_NOL_3 : | |
730 | (lanes == 2) ? MASK_NOL_2 : MASK_NOL_1)); | |
731 | ||
732 | i2c_wr32(sd, CSI_CONFW, MASK_MODE_SET | | |
733 | MASK_ADDRESS_CSI_ERR_INTENA | MASK_TXBRK | MASK_QUNK | | |
734 | MASK_WCER | MASK_INER); | |
735 | ||
736 | i2c_wr32(sd, CSI_CONFW, MASK_MODE_CLEAR | | |
737 | MASK_ADDRESS_CSI_ERR_HALT | MASK_TXBRK | MASK_QUNK); | |
738 | ||
739 | i2c_wr32(sd, CSI_CONFW, MASK_MODE_SET | | |
740 | MASK_ADDRESS_CSI_INT_ENA | MASK_INTER); | |
741 | } | |
742 | ||
743 | static void tc358743_set_hdmi_phy(struct v4l2_subdev *sd) | |
744 | { | |
745 | struct tc358743_state *state = to_state(sd); | |
746 | struct tc358743_platform_data *pdata = &state->pdata; | |
747 | ||
748 | /* Default settings from REF_02, sheet "Source HDMI" | |
749 | * and custom settings as platform data */ | |
750 | i2c_wr8_and_or(sd, PHY_EN, ~MASK_ENABLE_PHY, 0x0); | |
751 | i2c_wr8(sd, PHY_CTL1, SET_PHY_AUTO_RST1_US(1600) | | |
752 | SET_FREQ_RANGE_MODE_CYCLES(1)); | |
753 | i2c_wr8_and_or(sd, PHY_CTL2, ~MASK_PHY_AUTO_RSTn, | |
754 | (pdata->hdmi_phy_auto_reset_tmds_detected ? | |
755 | MASK_PHY_AUTO_RST2 : 0) | | |
756 | (pdata->hdmi_phy_auto_reset_tmds_in_range ? | |
757 | MASK_PHY_AUTO_RST3 : 0) | | |
758 | (pdata->hdmi_phy_auto_reset_tmds_valid ? | |
759 | MASK_PHY_AUTO_RST4 : 0)); | |
760 | i2c_wr8(sd, PHY_BIAS, 0x40); | |
761 | i2c_wr8(sd, PHY_CSQ, SET_CSQ_CNT_LEVEL(0x0a)); | |
762 | i2c_wr8(sd, AVM_CTL, 45); | |
763 | i2c_wr8_and_or(sd, HDMI_DET, ~MASK_HDMI_DET_V, | |
764 | pdata->hdmi_detection_delay << 4); | |
765 | i2c_wr8_and_or(sd, HV_RST, ~(MASK_H_PI_RST | MASK_V_PI_RST), | |
766 | (pdata->hdmi_phy_auto_reset_hsync_out_of_range ? | |
767 | MASK_H_PI_RST : 0) | | |
768 | (pdata->hdmi_phy_auto_reset_vsync_out_of_range ? | |
769 | MASK_V_PI_RST : 0)); | |
770 | i2c_wr8_and_or(sd, PHY_EN, ~MASK_ENABLE_PHY, MASK_ENABLE_PHY); | |
771 | } | |
772 | ||
773 | static void tc358743_set_hdmi_audio(struct v4l2_subdev *sd) | |
774 | { | |
775 | struct tc358743_state *state = to_state(sd); | |
776 | ||
777 | /* Default settings from REF_02, sheet "Source HDMI" */ | |
778 | i2c_wr8(sd, FORCE_MUTE, 0x00); | |
779 | i2c_wr8(sd, AUTO_CMD0, MASK_AUTO_MUTE7 | MASK_AUTO_MUTE6 | | |
780 | MASK_AUTO_MUTE5 | MASK_AUTO_MUTE4 | | |
781 | MASK_AUTO_MUTE1 | MASK_AUTO_MUTE0); | |
782 | i2c_wr8(sd, AUTO_CMD1, MASK_AUTO_MUTE9); | |
783 | i2c_wr8(sd, AUTO_CMD2, MASK_AUTO_PLAY3 | MASK_AUTO_PLAY2); | |
784 | i2c_wr8(sd, BUFINIT_START, SET_BUFINIT_START_MS(500)); | |
785 | i2c_wr8(sd, FS_MUTE, 0x00); | |
786 | i2c_wr8(sd, FS_IMODE, MASK_NLPCM_SMODE | MASK_FS_SMODE); | |
787 | i2c_wr8(sd, ACR_MODE, MASK_CTS_MODE); | |
788 | i2c_wr8(sd, ACR_MDF0, MASK_ACR_L2MDF_1976_PPM | MASK_ACR_L1MDF_976_PPM); | |
789 | i2c_wr8(sd, ACR_MDF1, MASK_ACR_L3MDF_3906_PPM); | |
790 | i2c_wr8(sd, SDO_MODE1, MASK_SDO_FMT_I2S); | |
791 | i2c_wr8(sd, DIV_MODE, SET_DIV_DLY_MS(100)); | |
792 | ||
793 | mutex_lock(&state->confctl_mutex); | |
794 | i2c_wr16_and_or(sd, CONFCTL, 0xffff, MASK_AUDCHNUM_2 | | |
795 | MASK_AUDOUTSEL_I2S | MASK_AUTOINDEX); | |
796 | mutex_unlock(&state->confctl_mutex); | |
797 | } | |
798 | ||
799 | static void tc358743_set_hdmi_info_frame_mode(struct v4l2_subdev *sd) | |
800 | { | |
801 | /* Default settings from REF_02, sheet "Source HDMI" */ | |
802 | i2c_wr8(sd, PK_INT_MODE, MASK_ISRC2_INT_MODE | MASK_ISRC_INT_MODE | | |
803 | MASK_ACP_INT_MODE | MASK_VS_INT_MODE | | |
804 | MASK_SPD_INT_MODE | MASK_MS_INT_MODE | | |
805 | MASK_AUD_INT_MODE | MASK_AVI_INT_MODE); | |
806 | i2c_wr8(sd, NO_PKT_LIMIT, 0x2c); | |
807 | i2c_wr8(sd, NO_PKT_CLR, 0x53); | |
808 | i2c_wr8(sd, ERR_PK_LIMIT, 0x01); | |
809 | i2c_wr8(sd, NO_PKT_LIMIT2, 0x30); | |
810 | i2c_wr8(sd, NO_GDB_LIMIT, 0x10); | |
811 | } | |
812 | ||
813 | static void tc358743_initial_setup(struct v4l2_subdev *sd) | |
814 | { | |
815 | struct tc358743_state *state = to_state(sd); | |
816 | struct tc358743_platform_data *pdata = &state->pdata; | |
817 | ||
818 | /* CEC and IR are not supported by this driver */ | |
819 | i2c_wr16_and_or(sd, SYSCTL, ~(MASK_CECRST | MASK_IRRST), | |
820 | (MASK_CECRST | MASK_IRRST)); | |
821 | ||
822 | tc358743_reset(sd, MASK_CTXRST | MASK_HDMIRST); | |
823 | tc358743_sleep_mode(sd, false); | |
824 | ||
825 | i2c_wr16(sd, FIFOCTL, pdata->fifo_level); | |
826 | ||
827 | tc358743_set_ref_clk(sd); | |
828 | ||
829 | i2c_wr8_and_or(sd, DDC_CTL, ~MASK_DDC5V_MODE, | |
830 | pdata->ddc5v_delay & MASK_DDC5V_MODE); | |
831 | i2c_wr8_and_or(sd, EDID_MODE, ~MASK_EDID_MODE, MASK_EDID_MODE_E_DDC); | |
832 | ||
833 | tc358743_set_hdmi_phy(sd); | |
834 | tc358743_set_hdmi_hdcp(sd, pdata->enable_hdcp); | |
835 | tc358743_set_hdmi_audio(sd); | |
836 | tc358743_set_hdmi_info_frame_mode(sd); | |
837 | ||
838 | /* All CE and IT formats are detected as RGB full range in DVI mode */ | |
839 | i2c_wr8_and_or(sd, VI_MODE, ~MASK_RGB_DVI, 0); | |
840 | ||
841 | i2c_wr8_and_or(sd, VOUT_SET2, ~MASK_VOUTCOLORMODE, | |
842 | MASK_VOUTCOLORMODE_AUTO); | |
843 | i2c_wr8(sd, VOUT_SET3, MASK_VOUT_EXTCNT); | |
844 | } | |
845 | ||
846 | /* --------------- IRQ --------------- */ | |
847 | ||
848 | static void tc358743_format_change(struct v4l2_subdev *sd) | |
849 | { | |
850 | struct tc358743_state *state = to_state(sd); | |
851 | struct v4l2_dv_timings timings; | |
852 | const struct v4l2_event tc358743_ev_fmt = { | |
853 | .type = V4L2_EVENT_SOURCE_CHANGE, | |
854 | .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, | |
855 | }; | |
856 | ||
857 | if (tc358743_get_detected_timings(sd, &timings)) { | |
858 | enable_stream(sd, false); | |
859 | ||
2874bf3e | 860 | v4l2_dbg(1, debug, sd, "%s: No signal\n", |
d32d9864 MR |
861 | __func__); |
862 | } else { | |
85f9e06c | 863 | if (!v4l2_match_dv_timings(&state->timings, &timings, 0, false)) |
d32d9864 MR |
864 | enable_stream(sd, false); |
865 | ||
2874bf3e MR |
866 | if (debug) |
867 | v4l2_print_dv_timings(sd->name, | |
868 | "tc358743_format_change: New format: ", | |
869 | &timings, false); | |
d32d9864 MR |
870 | } |
871 | ||
abeaca0f PZ |
872 | if (sd->devnode) |
873 | v4l2_subdev_notify_event(sd, &tc358743_ev_fmt); | |
d32d9864 MR |
874 | } |
875 | ||
876 | static void tc358743_init_interrupts(struct v4l2_subdev *sd) | |
877 | { | |
878 | u16 i; | |
879 | ||
880 | /* clear interrupt status registers */ | |
881 | for (i = SYS_INT; i <= KEY_INT; i++) | |
882 | i2c_wr8(sd, i, 0xff); | |
883 | ||
884 | i2c_wr16(sd, INTSTATUS, 0xffff); | |
885 | } | |
886 | ||
887 | static void tc358743_enable_interrupts(struct v4l2_subdev *sd, | |
888 | bool cable_connected) | |
889 | { | |
890 | v4l2_dbg(2, debug, sd, "%s: cable connected = %d\n", __func__, | |
891 | cable_connected); | |
892 | ||
893 | if (cable_connected) { | |
894 | i2c_wr8(sd, SYS_INTM, ~(MASK_M_DDC | MASK_M_DVI_DET | | |
895 | MASK_M_HDMI_DET) & 0xff); | |
896 | i2c_wr8(sd, CLK_INTM, ~MASK_M_IN_DE_CHG); | |
897 | i2c_wr8(sd, CBIT_INTM, ~(MASK_M_CBIT_FS | MASK_M_AF_LOCK | | |
898 | MASK_M_AF_UNLOCK) & 0xff); | |
899 | i2c_wr8(sd, AUDIO_INTM, ~MASK_M_BUFINIT_END); | |
900 | i2c_wr8(sd, MISC_INTM, ~MASK_M_SYNC_CHG); | |
901 | } else { | |
902 | i2c_wr8(sd, SYS_INTM, ~MASK_M_DDC & 0xff); | |
903 | i2c_wr8(sd, CLK_INTM, 0xff); | |
904 | i2c_wr8(sd, CBIT_INTM, 0xff); | |
905 | i2c_wr8(sd, AUDIO_INTM, 0xff); | |
906 | i2c_wr8(sd, MISC_INTM, 0xff); | |
907 | } | |
908 | } | |
909 | ||
910 | static void tc358743_hdmi_audio_int_handler(struct v4l2_subdev *sd, | |
911 | bool *handled) | |
912 | { | |
913 | u8 audio_int_mask = i2c_rd8(sd, AUDIO_INTM); | |
914 | u8 audio_int = i2c_rd8(sd, AUDIO_INT) & ~audio_int_mask; | |
915 | ||
916 | i2c_wr8(sd, AUDIO_INT, audio_int); | |
917 | ||
918 | v4l2_dbg(3, debug, sd, "%s: AUDIO_INT = 0x%02x\n", __func__, audio_int); | |
919 | ||
920 | tc358743_s_ctrl_audio_sampling_rate(sd); | |
921 | tc358743_s_ctrl_audio_present(sd); | |
922 | } | |
923 | ||
924 | static void tc358743_csi_err_int_handler(struct v4l2_subdev *sd, bool *handled) | |
925 | { | |
926 | v4l2_err(sd, "%s: CSI_ERR = 0x%x\n", __func__, i2c_rd32(sd, CSI_ERR)); | |
927 | ||
928 | i2c_wr32(sd, CSI_INT_CLR, MASK_ICRER); | |
929 | } | |
930 | ||
931 | static void tc358743_hdmi_misc_int_handler(struct v4l2_subdev *sd, | |
932 | bool *handled) | |
933 | { | |
934 | u8 misc_int_mask = i2c_rd8(sd, MISC_INTM); | |
935 | u8 misc_int = i2c_rd8(sd, MISC_INT) & ~misc_int_mask; | |
936 | ||
937 | i2c_wr8(sd, MISC_INT, misc_int); | |
938 | ||
939 | v4l2_dbg(3, debug, sd, "%s: MISC_INT = 0x%02x\n", __func__, misc_int); | |
940 | ||
941 | if (misc_int & MASK_I_SYNC_CHG) { | |
942 | /* Reset the HDMI PHY to try to trigger proper lock on the | |
943 | * incoming video format. Erase BKSV to prevent that old keys | |
944 | * are used when a new source is connected. */ | |
945 | if (no_sync(sd) || no_signal(sd)) { | |
946 | tc358743_reset_phy(sd); | |
947 | tc358743_erase_bksv(sd); | |
948 | } | |
949 | ||
950 | tc358743_format_change(sd); | |
951 | ||
952 | misc_int &= ~MASK_I_SYNC_CHG; | |
953 | if (handled) | |
954 | *handled = true; | |
955 | } | |
956 | ||
957 | if (misc_int) { | |
958 | v4l2_err(sd, "%s: Unhandled MISC_INT interrupts: 0x%02x\n", | |
959 | __func__, misc_int); | |
960 | } | |
961 | } | |
962 | ||
963 | static void tc358743_hdmi_cbit_int_handler(struct v4l2_subdev *sd, | |
964 | bool *handled) | |
965 | { | |
966 | u8 cbit_int_mask = i2c_rd8(sd, CBIT_INTM); | |
967 | u8 cbit_int = i2c_rd8(sd, CBIT_INT) & ~cbit_int_mask; | |
968 | ||
969 | i2c_wr8(sd, CBIT_INT, cbit_int); | |
970 | ||
971 | v4l2_dbg(3, debug, sd, "%s: CBIT_INT = 0x%02x\n", __func__, cbit_int); | |
972 | ||
973 | if (cbit_int & MASK_I_CBIT_FS) { | |
974 | ||
975 | v4l2_dbg(1, debug, sd, "%s: Audio sample rate changed\n", | |
976 | __func__); | |
977 | tc358743_s_ctrl_audio_sampling_rate(sd); | |
978 | ||
979 | cbit_int &= ~MASK_I_CBIT_FS; | |
980 | if (handled) | |
981 | *handled = true; | |
982 | } | |
983 | ||
984 | if (cbit_int & (MASK_I_AF_LOCK | MASK_I_AF_UNLOCK)) { | |
985 | ||
986 | v4l2_dbg(1, debug, sd, "%s: Audio present changed\n", | |
987 | __func__); | |
988 | tc358743_s_ctrl_audio_present(sd); | |
989 | ||
990 | cbit_int &= ~(MASK_I_AF_LOCK | MASK_I_AF_UNLOCK); | |
991 | if (handled) | |
992 | *handled = true; | |
993 | } | |
994 | ||
995 | if (cbit_int) { | |
996 | v4l2_err(sd, "%s: Unhandled CBIT_INT interrupts: 0x%02x\n", | |
997 | __func__, cbit_int); | |
998 | } | |
999 | } | |
1000 | ||
1001 | static void tc358743_hdmi_clk_int_handler(struct v4l2_subdev *sd, bool *handled) | |
1002 | { | |
1003 | u8 clk_int_mask = i2c_rd8(sd, CLK_INTM); | |
1004 | u8 clk_int = i2c_rd8(sd, CLK_INT) & ~clk_int_mask; | |
1005 | ||
1006 | /* Bit 7 and bit 6 are set even when they are masked */ | |
1007 | i2c_wr8(sd, CLK_INT, clk_int | 0x80 | MASK_I_OUT_H_CHG); | |
1008 | ||
1009 | v4l2_dbg(3, debug, sd, "%s: CLK_INT = 0x%02x\n", __func__, clk_int); | |
1010 | ||
1011 | if (clk_int & (MASK_I_IN_DE_CHG)) { | |
1012 | ||
1013 | v4l2_dbg(1, debug, sd, "%s: DE size or position has changed\n", | |
1014 | __func__); | |
1015 | ||
1016 | /* If the source switch to a new resolution with the same pixel | |
1017 | * frequency as the existing (e.g. 1080p25 -> 720p50), the | |
1018 | * I_SYNC_CHG interrupt is not always triggered, while the | |
1019 | * I_IN_DE_CHG interrupt seems to work fine. Format change | |
1020 | * notifications are only sent when the signal is stable to | |
1021 | * reduce the number of notifications. */ | |
1022 | if (!no_signal(sd) && !no_sync(sd)) | |
1023 | tc358743_format_change(sd); | |
1024 | ||
1025 | clk_int &= ~(MASK_I_IN_DE_CHG); | |
1026 | if (handled) | |
1027 | *handled = true; | |
1028 | } | |
1029 | ||
1030 | if (clk_int) { | |
1031 | v4l2_err(sd, "%s: Unhandled CLK_INT interrupts: 0x%02x\n", | |
1032 | __func__, clk_int); | |
1033 | } | |
1034 | } | |
1035 | ||
1036 | static void tc358743_hdmi_sys_int_handler(struct v4l2_subdev *sd, bool *handled) | |
1037 | { | |
1038 | struct tc358743_state *state = to_state(sd); | |
1039 | u8 sys_int_mask = i2c_rd8(sd, SYS_INTM); | |
1040 | u8 sys_int = i2c_rd8(sd, SYS_INT) & ~sys_int_mask; | |
1041 | ||
1042 | i2c_wr8(sd, SYS_INT, sys_int); | |
1043 | ||
1044 | v4l2_dbg(3, debug, sd, "%s: SYS_INT = 0x%02x\n", __func__, sys_int); | |
1045 | ||
1046 | if (sys_int & MASK_I_DDC) { | |
1047 | bool tx_5v = tx_5v_power_present(sd); | |
1048 | ||
1049 | v4l2_dbg(1, debug, sd, "%s: Tx 5V power present: %s\n", | |
1050 | __func__, tx_5v ? "yes" : "no"); | |
1051 | ||
1052 | if (tx_5v) { | |
1053 | tc358743_enable_edid(sd); | |
1054 | } else { | |
1055 | tc358743_enable_interrupts(sd, false); | |
1056 | tc358743_disable_edid(sd); | |
1057 | memset(&state->timings, 0, sizeof(state->timings)); | |
1058 | tc358743_erase_bksv(sd); | |
1059 | tc358743_update_controls(sd); | |
1060 | } | |
1061 | ||
1062 | sys_int &= ~MASK_I_DDC; | |
1063 | if (handled) | |
1064 | *handled = true; | |
1065 | } | |
1066 | ||
1067 | if (sys_int & MASK_I_DVI) { | |
1068 | v4l2_dbg(1, debug, sd, "%s: HDMI->DVI change detected\n", | |
1069 | __func__); | |
1070 | ||
1071 | /* Reset the HDMI PHY to try to trigger proper lock on the | |
1072 | * incoming video format. Erase BKSV to prevent that old keys | |
1073 | * are used when a new source is connected. */ | |
1074 | if (no_sync(sd) || no_signal(sd)) { | |
1075 | tc358743_reset_phy(sd); | |
1076 | tc358743_erase_bksv(sd); | |
1077 | } | |
1078 | ||
1079 | sys_int &= ~MASK_I_DVI; | |
1080 | if (handled) | |
1081 | *handled = true; | |
1082 | } | |
1083 | ||
1084 | if (sys_int & MASK_I_HDMI) { | |
1085 | v4l2_dbg(1, debug, sd, "%s: DVI->HDMI change detected\n", | |
1086 | __func__); | |
1087 | ||
1088 | /* Register is reset in DVI mode (REF_01, c. 6.6.41) */ | |
1089 | i2c_wr8(sd, ANA_CTL, MASK_APPL_PCSX_NORMAL | MASK_ANALOG_ON); | |
1090 | ||
1091 | sys_int &= ~MASK_I_HDMI; | |
1092 | if (handled) | |
1093 | *handled = true; | |
1094 | } | |
1095 | ||
1096 | if (sys_int) { | |
1097 | v4l2_err(sd, "%s: Unhandled SYS_INT interrupts: 0x%02x\n", | |
1098 | __func__, sys_int); | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | /* --------------- CORE OPS --------------- */ | |
1103 | ||
1104 | static int tc358743_log_status(struct v4l2_subdev *sd) | |
1105 | { | |
1106 | struct tc358743_state *state = to_state(sd); | |
1107 | struct v4l2_dv_timings timings; | |
1108 | uint8_t hdmi_sys_status = i2c_rd8(sd, SYS_STATUS); | |
1109 | uint16_t sysctl = i2c_rd16(sd, SYSCTL); | |
1110 | u8 vi_status3 = i2c_rd8(sd, VI_STATUS3); | |
1111 | const int deep_color_mode[4] = { 8, 10, 12, 16 }; | |
1112 | static const char * const input_color_space[] = { | |
1113 | "RGB", "YCbCr 601", "Adobe RGB", "YCbCr 709", "NA (4)", | |
1114 | "xvYCC 601", "NA(6)", "xvYCC 709", "NA(8)", "sYCC601", | |
1115 | "NA(10)", "NA(11)", "NA(12)", "Adobe YCC 601"}; | |
1116 | ||
1117 | v4l2_info(sd, "-----Chip status-----\n"); | |
1118 | v4l2_info(sd, "Chip ID: 0x%02x\n", | |
1119 | (i2c_rd16(sd, CHIPID) & MASK_CHIPID) >> 8); | |
1120 | v4l2_info(sd, "Chip revision: 0x%02x\n", | |
1121 | i2c_rd16(sd, CHIPID) & MASK_REVID); | |
1122 | v4l2_info(sd, "Reset: IR: %d, CEC: %d, CSI TX: %d, HDMI: %d\n", | |
1123 | !!(sysctl & MASK_IRRST), | |
1124 | !!(sysctl & MASK_CECRST), | |
1125 | !!(sysctl & MASK_CTXRST), | |
1126 | !!(sysctl & MASK_HDMIRST)); | |
1127 | v4l2_info(sd, "Sleep mode: %s\n", sysctl & MASK_SLEEP ? "on" : "off"); | |
1128 | v4l2_info(sd, "Cable detected (+5V power): %s\n", | |
1129 | hdmi_sys_status & MASK_S_DDC5V ? "yes" : "no"); | |
1130 | v4l2_info(sd, "DDC lines enabled: %s\n", | |
1131 | (i2c_rd8(sd, EDID_MODE) & MASK_EDID_MODE_E_DDC) ? | |
1132 | "yes" : "no"); | |
1133 | v4l2_info(sd, "Hotplug enabled: %s\n", | |
1134 | (i2c_rd8(sd, HPD_CTL) & MASK_HPD_OUT0) ? | |
1135 | "yes" : "no"); | |
1136 | v4l2_info(sd, "CEC enabled: %s\n", | |
1137 | (i2c_rd16(sd, CECEN) & MASK_CECEN) ? "yes" : "no"); | |
1138 | v4l2_info(sd, "-----Signal status-----\n"); | |
1139 | v4l2_info(sd, "TMDS signal detected: %s\n", | |
1140 | hdmi_sys_status & MASK_S_TMDS ? "yes" : "no"); | |
1141 | v4l2_info(sd, "Stable sync signal: %s\n", | |
1142 | hdmi_sys_status & MASK_S_SYNC ? "yes" : "no"); | |
1143 | v4l2_info(sd, "PHY PLL locked: %s\n", | |
1144 | hdmi_sys_status & MASK_S_PHY_PLL ? "yes" : "no"); | |
1145 | v4l2_info(sd, "PHY DE detected: %s\n", | |
1146 | hdmi_sys_status & MASK_S_PHY_SCDT ? "yes" : "no"); | |
1147 | ||
1148 | if (tc358743_get_detected_timings(sd, &timings)) { | |
1149 | v4l2_info(sd, "No video detected\n"); | |
1150 | } else { | |
1151 | v4l2_print_dv_timings(sd->name, "Detected format: ", &timings, | |
1152 | true); | |
1153 | } | |
1154 | v4l2_print_dv_timings(sd->name, "Configured format: ", &state->timings, | |
1155 | true); | |
1156 | ||
1157 | v4l2_info(sd, "-----CSI-TX status-----\n"); | |
1158 | v4l2_info(sd, "Lanes needed: %d\n", | |
1159 | tc358743_num_csi_lanes_needed(sd)); | |
1160 | v4l2_info(sd, "Lanes in use: %d\n", | |
1161 | tc358743_num_csi_lanes_in_use(sd)); | |
1162 | v4l2_info(sd, "Waiting for particular sync signal: %s\n", | |
1163 | (i2c_rd16(sd, CSI_STATUS) & MASK_S_WSYNC) ? | |
1164 | "yes" : "no"); | |
1165 | v4l2_info(sd, "Transmit mode: %s\n", | |
1166 | (i2c_rd16(sd, CSI_STATUS) & MASK_S_TXACT) ? | |
1167 | "yes" : "no"); | |
1168 | v4l2_info(sd, "Receive mode: %s\n", | |
1169 | (i2c_rd16(sd, CSI_STATUS) & MASK_S_RXACT) ? | |
1170 | "yes" : "no"); | |
1171 | v4l2_info(sd, "Stopped: %s\n", | |
1172 | (i2c_rd16(sd, CSI_STATUS) & MASK_S_HLT) ? | |
1173 | "yes" : "no"); | |
1174 | v4l2_info(sd, "Color space: %s\n", | |
1175 | state->mbus_fmt_code == MEDIA_BUS_FMT_UYVY8_1X16 ? | |
1176 | "YCbCr 422 16-bit" : | |
1177 | state->mbus_fmt_code == MEDIA_BUS_FMT_RGB888_1X24 ? | |
1178 | "RGB 888 24-bit" : "Unsupported"); | |
1179 | ||
1180 | v4l2_info(sd, "-----%s status-----\n", is_hdmi(sd) ? "HDMI" : "DVI-D"); | |
1181 | v4l2_info(sd, "HDCP encrypted content: %s\n", | |
1182 | hdmi_sys_status & MASK_S_HDCP ? "yes" : "no"); | |
1183 | v4l2_info(sd, "Input color space: %s %s range\n", | |
1184 | input_color_space[(vi_status3 & MASK_S_V_COLOR) >> 1], | |
1185 | (vi_status3 & MASK_LIMITED) ? "limited" : "full"); | |
1186 | if (!is_hdmi(sd)) | |
1187 | return 0; | |
1188 | v4l2_info(sd, "AV Mute: %s\n", hdmi_sys_status & MASK_S_AVMUTE ? "on" : | |
1189 | "off"); | |
1190 | v4l2_info(sd, "Deep color mode: %d-bits per channel\n", | |
1191 | deep_color_mode[(i2c_rd8(sd, VI_STATUS1) & | |
1192 | MASK_S_DEEPCOLOR) >> 2]); | |
1193 | print_avi_infoframe(sd); | |
1194 | ||
1195 | return 0; | |
1196 | } | |
1197 | ||
1198 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1199 | static void tc358743_print_register_map(struct v4l2_subdev *sd) | |
1200 | { | |
1201 | v4l2_info(sd, "0x0000–0x00FF: Global Control Register\n"); | |
1202 | v4l2_info(sd, "0x0100–0x01FF: CSI2-TX PHY Register\n"); | |
1203 | v4l2_info(sd, "0x0200–0x03FF: CSI2-TX PPI Register\n"); | |
1204 | v4l2_info(sd, "0x0400–0x05FF: Reserved\n"); | |
1205 | v4l2_info(sd, "0x0600–0x06FF: CEC Register\n"); | |
1206 | v4l2_info(sd, "0x0700–0x84FF: Reserved\n"); | |
1207 | v4l2_info(sd, "0x8500–0x85FF: HDMIRX System Control Register\n"); | |
1208 | v4l2_info(sd, "0x8600–0x86FF: HDMIRX Audio Control Register\n"); | |
1209 | v4l2_info(sd, "0x8700–0x87FF: HDMIRX InfoFrame packet data Register\n"); | |
1210 | v4l2_info(sd, "0x8800–0x88FF: HDMIRX HDCP Port Register\n"); | |
1211 | v4l2_info(sd, "0x8900–0x89FF: HDMIRX Video Output Port & 3D Register\n"); | |
1212 | v4l2_info(sd, "0x8A00–0x8BFF: Reserved\n"); | |
1213 | v4l2_info(sd, "0x8C00–0x8FFF: HDMIRX EDID-RAM (1024bytes)\n"); | |
1214 | v4l2_info(sd, "0x9000–0x90FF: HDMIRX GBD Extraction Control\n"); | |
1215 | v4l2_info(sd, "0x9100–0x92FF: HDMIRX GBD RAM read\n"); | |
1216 | v4l2_info(sd, "0x9300- : Reserved\n"); | |
1217 | } | |
1218 | ||
1219 | static int tc358743_get_reg_size(u16 address) | |
1220 | { | |
1221 | /* REF_01 p. 66-72 */ | |
1222 | if (address <= 0x00ff) | |
1223 | return 2; | |
1224 | else if ((address >= 0x0100) && (address <= 0x06FF)) | |
1225 | return 4; | |
1226 | else if ((address >= 0x0700) && (address <= 0x84ff)) | |
1227 | return 2; | |
1228 | else | |
1229 | return 1; | |
1230 | } | |
1231 | ||
1232 | static int tc358743_g_register(struct v4l2_subdev *sd, | |
1233 | struct v4l2_dbg_register *reg) | |
1234 | { | |
1235 | if (reg->reg > 0xffff) { | |
1236 | tc358743_print_register_map(sd); | |
1237 | return -EINVAL; | |
1238 | } | |
1239 | ||
1240 | reg->size = tc358743_get_reg_size(reg->reg); | |
1241 | ||
1242 | i2c_rd(sd, reg->reg, (u8 *)®->val, reg->size); | |
1243 | ||
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | static int tc358743_s_register(struct v4l2_subdev *sd, | |
1248 | const struct v4l2_dbg_register *reg) | |
1249 | { | |
1250 | if (reg->reg > 0xffff) { | |
1251 | tc358743_print_register_map(sd); | |
1252 | return -EINVAL; | |
1253 | } | |
1254 | ||
1255 | /* It should not be possible for the user to enable HDCP with a simple | |
1256 | * v4l2-dbg command. | |
1257 | * | |
1258 | * DO NOT REMOVE THIS unless all other issues with HDCP have been | |
1259 | * resolved. | |
1260 | */ | |
1261 | if (reg->reg == HDCP_MODE || | |
1262 | reg->reg == HDCP_REG1 || | |
1263 | reg->reg == HDCP_REG2 || | |
1264 | reg->reg == HDCP_REG3 || | |
1265 | reg->reg == BCAPS) | |
1266 | return 0; | |
1267 | ||
1268 | i2c_wr(sd, (u16)reg->reg, (u8 *)®->val, | |
1269 | tc358743_get_reg_size(reg->reg)); | |
1270 | ||
1271 | return 0; | |
1272 | } | |
1273 | #endif | |
1274 | ||
1275 | static int tc358743_isr(struct v4l2_subdev *sd, u32 status, bool *handled) | |
1276 | { | |
1277 | u16 intstatus = i2c_rd16(sd, INTSTATUS); | |
1278 | ||
1279 | v4l2_dbg(1, debug, sd, "%s: IntStatus = 0x%04x\n", __func__, intstatus); | |
1280 | ||
1281 | if (intstatus & MASK_HDMI_INT) { | |
1282 | u8 hdmi_int0 = i2c_rd8(sd, HDMI_INT0); | |
1283 | u8 hdmi_int1 = i2c_rd8(sd, HDMI_INT1); | |
1284 | ||
1285 | if (hdmi_int0 & MASK_I_MISC) | |
1286 | tc358743_hdmi_misc_int_handler(sd, handled); | |
1287 | if (hdmi_int1 & MASK_I_CBIT) | |
1288 | tc358743_hdmi_cbit_int_handler(sd, handled); | |
1289 | if (hdmi_int1 & MASK_I_CLK) | |
1290 | tc358743_hdmi_clk_int_handler(sd, handled); | |
1291 | if (hdmi_int1 & MASK_I_SYS) | |
1292 | tc358743_hdmi_sys_int_handler(sd, handled); | |
1293 | if (hdmi_int1 & MASK_I_AUD) | |
1294 | tc358743_hdmi_audio_int_handler(sd, handled); | |
1295 | ||
1296 | i2c_wr16(sd, INTSTATUS, MASK_HDMI_INT); | |
1297 | intstatus &= ~MASK_HDMI_INT; | |
1298 | } | |
1299 | ||
1300 | if (intstatus & MASK_CSI_INT) { | |
1301 | u32 csi_int = i2c_rd32(sd, CSI_INT); | |
1302 | ||
1303 | if (csi_int & MASK_INTER) | |
1304 | tc358743_csi_err_int_handler(sd, handled); | |
1305 | ||
1306 | i2c_wr16(sd, INTSTATUS, MASK_CSI_INT); | |
1307 | intstatus &= ~MASK_CSI_INT; | |
1308 | } | |
1309 | ||
1310 | intstatus = i2c_rd16(sd, INTSTATUS); | |
1311 | if (intstatus) { | |
1312 | v4l2_dbg(1, debug, sd, | |
1313 | "%s: Unhandled IntStatus interrupts: 0x%02x\n", | |
1314 | __func__, intstatus); | |
1315 | } | |
1316 | ||
1317 | return 0; | |
1318 | } | |
1319 | ||
d747b806 PZ |
1320 | static irqreturn_t tc358743_irq_handler(int irq, void *dev_id) |
1321 | { | |
1322 | struct tc358743_state *state = dev_id; | |
1323 | bool handled; | |
1324 | ||
1325 | tc358743_isr(&state->sd, 0, &handled); | |
1326 | ||
1327 | return handled ? IRQ_HANDLED : IRQ_NONE; | |
1328 | } | |
1329 | ||
1140f919 PZ |
1330 | static int tc358743_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, |
1331 | struct v4l2_event_subscription *sub) | |
1332 | { | |
1333 | switch (sub->type) { | |
1334 | case V4L2_EVENT_SOURCE_CHANGE: | |
1335 | return v4l2_src_change_event_subdev_subscribe(sd, fh, sub); | |
1336 | case V4L2_EVENT_CTRL: | |
1337 | return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub); | |
1338 | default: | |
1339 | return -EINVAL; | |
1340 | } | |
1341 | } | |
1342 | ||
d32d9864 MR |
1343 | /* --------------- VIDEO OPS --------------- */ |
1344 | ||
1345 | static int tc358743_g_input_status(struct v4l2_subdev *sd, u32 *status) | |
1346 | { | |
1347 | *status = 0; | |
1348 | *status |= no_signal(sd) ? V4L2_IN_ST_NO_SIGNAL : 0; | |
1349 | *status |= no_sync(sd) ? V4L2_IN_ST_NO_SYNC : 0; | |
1350 | ||
1351 | v4l2_dbg(1, debug, sd, "%s: status = 0x%x\n", __func__, *status); | |
1352 | ||
1353 | return 0; | |
1354 | } | |
1355 | ||
1356 | static int tc358743_s_dv_timings(struct v4l2_subdev *sd, | |
1357 | struct v4l2_dv_timings *timings) | |
1358 | { | |
1359 | struct tc358743_state *state = to_state(sd); | |
d32d9864 MR |
1360 | |
1361 | if (!timings) | |
1362 | return -EINVAL; | |
1363 | ||
1364 | if (debug) | |
1365 | v4l2_print_dv_timings(sd->name, "tc358743_s_dv_timings: ", | |
1366 | timings, false); | |
1367 | ||
85f9e06c | 1368 | if (v4l2_match_dv_timings(&state->timings, timings, 0, false)) { |
d32d9864 MR |
1369 | v4l2_dbg(1, debug, sd, "%s: no change\n", __func__); |
1370 | return 0; | |
1371 | } | |
1372 | ||
d32d9864 MR |
1373 | if (!v4l2_valid_dv_timings(timings, |
1374 | &tc358743_timings_cap, NULL, NULL)) { | |
1375 | v4l2_dbg(1, debug, sd, "%s: timings out of range\n", __func__); | |
1376 | return -ERANGE; | |
1377 | } | |
1378 | ||
1379 | state->timings = *timings; | |
1380 | ||
1381 | enable_stream(sd, false); | |
1382 | tc358743_set_pll(sd); | |
1383 | tc358743_set_csi(sd); | |
1384 | ||
1385 | return 0; | |
1386 | } | |
1387 | ||
1388 | static int tc358743_g_dv_timings(struct v4l2_subdev *sd, | |
1389 | struct v4l2_dv_timings *timings) | |
1390 | { | |
1391 | struct tc358743_state *state = to_state(sd); | |
1392 | ||
1393 | *timings = state->timings; | |
1394 | ||
1395 | return 0; | |
1396 | } | |
1397 | ||
1398 | static int tc358743_enum_dv_timings(struct v4l2_subdev *sd, | |
1399 | struct v4l2_enum_dv_timings *timings) | |
1400 | { | |
1401 | if (timings->pad != 0) | |
1402 | return -EINVAL; | |
1403 | ||
1404 | return v4l2_enum_dv_timings_cap(timings, | |
1405 | &tc358743_timings_cap, NULL, NULL); | |
1406 | } | |
1407 | ||
1408 | static int tc358743_query_dv_timings(struct v4l2_subdev *sd, | |
1409 | struct v4l2_dv_timings *timings) | |
1410 | { | |
1411 | int ret; | |
1412 | ||
1413 | ret = tc358743_get_detected_timings(sd, timings); | |
1414 | if (ret) | |
1415 | return ret; | |
1416 | ||
1417 | if (debug) | |
1418 | v4l2_print_dv_timings(sd->name, "tc358743_query_dv_timings: ", | |
1419 | timings, false); | |
1420 | ||
1421 | if (!v4l2_valid_dv_timings(timings, | |
1422 | &tc358743_timings_cap, NULL, NULL)) { | |
1423 | v4l2_dbg(1, debug, sd, "%s: timings out of range\n", __func__); | |
1424 | return -ERANGE; | |
1425 | } | |
1426 | ||
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | static int tc358743_dv_timings_cap(struct v4l2_subdev *sd, | |
1431 | struct v4l2_dv_timings_cap *cap) | |
1432 | { | |
1433 | if (cap->pad != 0) | |
1434 | return -EINVAL; | |
1435 | ||
1436 | *cap = tc358743_timings_cap; | |
1437 | ||
1438 | return 0; | |
1439 | } | |
1440 | ||
1441 | static int tc358743_g_mbus_config(struct v4l2_subdev *sd, | |
1442 | struct v4l2_mbus_config *cfg) | |
1443 | { | |
1444 | cfg->type = V4L2_MBUS_CSI2; | |
1445 | ||
1446 | /* Support for non-continuous CSI-2 clock is missing in the driver */ | |
1447 | cfg->flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; | |
1448 | ||
1449 | switch (tc358743_num_csi_lanes_in_use(sd)) { | |
1450 | case 1: | |
1451 | cfg->flags |= V4L2_MBUS_CSI2_1_LANE; | |
1452 | break; | |
1453 | case 2: | |
1454 | cfg->flags |= V4L2_MBUS_CSI2_2_LANE; | |
1455 | break; | |
1456 | case 3: | |
1457 | cfg->flags |= V4L2_MBUS_CSI2_3_LANE; | |
1458 | break; | |
1459 | case 4: | |
1460 | cfg->flags |= V4L2_MBUS_CSI2_4_LANE; | |
1461 | break; | |
1462 | default: | |
1463 | return -EINVAL; | |
1464 | } | |
1465 | ||
1466 | return 0; | |
1467 | } | |
1468 | ||
1469 | static int tc358743_s_stream(struct v4l2_subdev *sd, int enable) | |
1470 | { | |
1471 | enable_stream(sd, enable); | |
1472 | ||
1473 | return 0; | |
1474 | } | |
1475 | ||
1476 | /* --------------- PAD OPS --------------- */ | |
1477 | ||
1478 | static int tc358743_get_fmt(struct v4l2_subdev *sd, | |
1479 | struct v4l2_subdev_pad_config *cfg, | |
1480 | struct v4l2_subdev_format *format) | |
1481 | { | |
1482 | struct tc358743_state *state = to_state(sd); | |
1483 | u8 vi_rep = i2c_rd8(sd, VI_REP); | |
1484 | ||
1485 | if (format->pad != 0) | |
1486 | return -EINVAL; | |
1487 | ||
1488 | format->format.code = state->mbus_fmt_code; | |
1489 | format->format.width = state->timings.bt.width; | |
1490 | format->format.height = state->timings.bt.height; | |
1491 | format->format.field = V4L2_FIELD_NONE; | |
1492 | ||
1493 | switch (vi_rep & MASK_VOUT_COLOR_SEL) { | |
1494 | case MASK_VOUT_COLOR_RGB_FULL: | |
1495 | case MASK_VOUT_COLOR_RGB_LIMITED: | |
1496 | format->format.colorspace = V4L2_COLORSPACE_SRGB; | |
1497 | break; | |
1498 | case MASK_VOUT_COLOR_601_YCBCR_LIMITED: | |
1499 | case MASK_VOUT_COLOR_601_YCBCR_FULL: | |
1500 | format->format.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
1501 | break; | |
1502 | case MASK_VOUT_COLOR_709_YCBCR_FULL: | |
1503 | case MASK_VOUT_COLOR_709_YCBCR_LIMITED: | |
1504 | format->format.colorspace = V4L2_COLORSPACE_REC709; | |
1505 | break; | |
1506 | default: | |
1507 | format->format.colorspace = 0; | |
1508 | break; | |
1509 | } | |
1510 | ||
1511 | return 0; | |
1512 | } | |
1513 | ||
1514 | static int tc358743_set_fmt(struct v4l2_subdev *sd, | |
1515 | struct v4l2_subdev_pad_config *cfg, | |
1516 | struct v4l2_subdev_format *format) | |
1517 | { | |
1518 | struct tc358743_state *state = to_state(sd); | |
1519 | ||
1520 | u32 code = format->format.code; /* is overwritten by get_fmt */ | |
1521 | int ret = tc358743_get_fmt(sd, cfg, format); | |
1522 | ||
1523 | format->format.code = code; | |
1524 | ||
1525 | if (ret) | |
1526 | return ret; | |
1527 | ||
1528 | switch (code) { | |
1529 | case MEDIA_BUS_FMT_RGB888_1X24: | |
1530 | case MEDIA_BUS_FMT_UYVY8_1X16: | |
1531 | break; | |
1532 | default: | |
1533 | return -EINVAL; | |
1534 | } | |
1535 | ||
1536 | if (format->which == V4L2_SUBDEV_FORMAT_TRY) | |
1537 | return 0; | |
1538 | ||
1539 | state->mbus_fmt_code = format->format.code; | |
1540 | ||
1541 | enable_stream(sd, false); | |
1542 | tc358743_set_pll(sd); | |
1543 | tc358743_set_csi(sd); | |
1544 | tc358743_set_csi_color_space(sd); | |
1545 | ||
1546 | return 0; | |
1547 | } | |
1548 | ||
1549 | static int tc358743_g_edid(struct v4l2_subdev *sd, | |
1550 | struct v4l2_subdev_edid *edid) | |
1551 | { | |
1552 | struct tc358743_state *state = to_state(sd); | |
1553 | ||
1554 | if (edid->pad != 0) | |
1555 | return -EINVAL; | |
1556 | ||
1557 | if (edid->start_block == 0 && edid->blocks == 0) { | |
1558 | edid->blocks = state->edid_blocks_written; | |
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | if (state->edid_blocks_written == 0) | |
1563 | return -ENODATA; | |
1564 | ||
1565 | if (edid->start_block >= state->edid_blocks_written || | |
1566 | edid->blocks == 0) | |
1567 | return -EINVAL; | |
1568 | ||
1569 | if (edid->start_block + edid->blocks > state->edid_blocks_written) | |
1570 | edid->blocks = state->edid_blocks_written - edid->start_block; | |
1571 | ||
1572 | i2c_rd(sd, EDID_RAM + (edid->start_block * EDID_BLOCK_SIZE), edid->edid, | |
1573 | edid->blocks * EDID_BLOCK_SIZE); | |
1574 | ||
1575 | return 0; | |
1576 | } | |
1577 | ||
1578 | static int tc358743_s_edid(struct v4l2_subdev *sd, | |
1579 | struct v4l2_subdev_edid *edid) | |
1580 | { | |
1581 | struct tc358743_state *state = to_state(sd); | |
1582 | u16 edid_len = edid->blocks * EDID_BLOCK_SIZE; | |
fcae73fa | 1583 | int i; |
d32d9864 MR |
1584 | |
1585 | v4l2_dbg(2, debug, sd, "%s, pad %d, start block %d, blocks %d\n", | |
1586 | __func__, edid->pad, edid->start_block, edid->blocks); | |
1587 | ||
1588 | if (edid->pad != 0) | |
1589 | return -EINVAL; | |
1590 | ||
1591 | if (edid->start_block != 0) | |
1592 | return -EINVAL; | |
1593 | ||
1594 | if (edid->blocks > EDID_NUM_BLOCKS_MAX) { | |
1595 | edid->blocks = EDID_NUM_BLOCKS_MAX; | |
1596 | return -E2BIG; | |
1597 | } | |
1598 | ||
1599 | tc358743_disable_edid(sd); | |
1600 | ||
1601 | i2c_wr8(sd, EDID_LEN1, edid_len & 0xff); | |
1602 | i2c_wr8(sd, EDID_LEN2, edid_len >> 8); | |
1603 | ||
1604 | if (edid->blocks == 0) { | |
1605 | state->edid_blocks_written = 0; | |
1606 | return 0; | |
1607 | } | |
1608 | ||
fcae73fa MR |
1609 | for (i = 0; i < edid_len; i += EDID_BLOCK_SIZE) |
1610 | i2c_wr(sd, EDID_RAM + i, edid->edid + i, EDID_BLOCK_SIZE); | |
d32d9864 MR |
1611 | |
1612 | state->edid_blocks_written = edid->blocks; | |
1613 | ||
1614 | if (tx_5v_power_present(sd)) | |
1615 | tc358743_enable_edid(sd); | |
1616 | ||
1617 | return 0; | |
1618 | } | |
1619 | ||
1620 | /* -------------------------------------------------------------------------- */ | |
1621 | ||
1622 | static const struct v4l2_subdev_core_ops tc358743_core_ops = { | |
1623 | .log_status = tc358743_log_status, | |
1624 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1625 | .g_register = tc358743_g_register, | |
1626 | .s_register = tc358743_s_register, | |
1627 | #endif | |
1628 | .interrupt_service_routine = tc358743_isr, | |
1140f919 PZ |
1629 | .subscribe_event = tc358743_subscribe_event, |
1630 | .unsubscribe_event = v4l2_event_subdev_unsubscribe, | |
d32d9864 MR |
1631 | }; |
1632 | ||
1633 | static const struct v4l2_subdev_video_ops tc358743_video_ops = { | |
1634 | .g_input_status = tc358743_g_input_status, | |
1635 | .s_dv_timings = tc358743_s_dv_timings, | |
1636 | .g_dv_timings = tc358743_g_dv_timings, | |
1637 | .query_dv_timings = tc358743_query_dv_timings, | |
1638 | .g_mbus_config = tc358743_g_mbus_config, | |
1639 | .s_stream = tc358743_s_stream, | |
1640 | }; | |
1641 | ||
1642 | static const struct v4l2_subdev_pad_ops tc358743_pad_ops = { | |
1643 | .set_fmt = tc358743_set_fmt, | |
1644 | .get_fmt = tc358743_get_fmt, | |
1645 | .get_edid = tc358743_g_edid, | |
1646 | .set_edid = tc358743_s_edid, | |
1647 | .enum_dv_timings = tc358743_enum_dv_timings, | |
1648 | .dv_timings_cap = tc358743_dv_timings_cap, | |
1649 | }; | |
1650 | ||
1651 | static const struct v4l2_subdev_ops tc358743_ops = { | |
1652 | .core = &tc358743_core_ops, | |
1653 | .video = &tc358743_video_ops, | |
1654 | .pad = &tc358743_pad_ops, | |
1655 | }; | |
1656 | ||
1657 | /* --------------- CUSTOM CTRLS --------------- */ | |
1658 | ||
1659 | static const struct v4l2_ctrl_config tc358743_ctrl_audio_sampling_rate = { | |
1660 | .id = TC358743_CID_AUDIO_SAMPLING_RATE, | |
1661 | .name = "Audio sampling rate", | |
1662 | .type = V4L2_CTRL_TYPE_INTEGER, | |
1663 | .min = 0, | |
1664 | .max = 768000, | |
1665 | .step = 1, | |
1666 | .def = 0, | |
1667 | .flags = V4L2_CTRL_FLAG_READ_ONLY, | |
1668 | }; | |
1669 | ||
1670 | static const struct v4l2_ctrl_config tc358743_ctrl_audio_present = { | |
1671 | .id = TC358743_CID_AUDIO_PRESENT, | |
1672 | .name = "Audio present", | |
1673 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
1674 | .min = 0, | |
1675 | .max = 1, | |
1676 | .step = 1, | |
1677 | .def = 0, | |
1678 | .flags = V4L2_CTRL_FLAG_READ_ONLY, | |
1679 | }; | |
1680 | ||
1681 | /* --------------- PROBE / REMOVE --------------- */ | |
1682 | ||
25614824 PZ |
1683 | #ifdef CONFIG_OF |
1684 | static void tc358743_gpio_reset(struct tc358743_state *state) | |
1685 | { | |
25614824 PZ |
1686 | usleep_range(5000, 10000); |
1687 | gpiod_set_value(state->reset_gpio, 1); | |
1688 | usleep_range(1000, 2000); | |
1689 | gpiod_set_value(state->reset_gpio, 0); | |
1690 | msleep(20); | |
1691 | } | |
1692 | ||
1693 | static int tc358743_probe_of(struct tc358743_state *state) | |
1694 | { | |
1695 | struct device *dev = &state->i2c_client->dev; | |
1696 | struct v4l2_of_endpoint *endpoint; | |
1697 | struct device_node *ep; | |
1698 | struct clk *refclk; | |
1699 | u32 bps_pr_lane; | |
1700 | int ret = -EINVAL; | |
1701 | ||
1702 | refclk = devm_clk_get(dev, "refclk"); | |
1703 | if (IS_ERR(refclk)) { | |
1704 | if (PTR_ERR(refclk) != -EPROBE_DEFER) | |
1705 | dev_err(dev, "failed to get refclk: %ld\n", | |
1706 | PTR_ERR(refclk)); | |
1707 | return PTR_ERR(refclk); | |
1708 | } | |
1709 | ||
1710 | ep = of_graph_get_next_endpoint(dev->of_node, NULL); | |
1711 | if (!ep) { | |
1712 | dev_err(dev, "missing endpoint node\n"); | |
1713 | return -EINVAL; | |
1714 | } | |
1715 | ||
1716 | endpoint = v4l2_of_alloc_parse_endpoint(ep); | |
1717 | if (IS_ERR(endpoint)) { | |
1718 | dev_err(dev, "failed to parse endpoint\n"); | |
1719 | return PTR_ERR(endpoint); | |
1720 | } | |
1721 | ||
1722 | if (endpoint->bus_type != V4L2_MBUS_CSI2 || | |
1723 | endpoint->bus.mipi_csi2.num_data_lanes == 0 || | |
1724 | endpoint->nr_of_link_frequencies == 0) { | |
1725 | dev_err(dev, "missing CSI-2 properties in endpoint\n"); | |
1726 | goto free_endpoint; | |
1727 | } | |
1728 | ||
1729 | state->bus = endpoint->bus.mipi_csi2; | |
1730 | ||
1731 | clk_prepare_enable(refclk); | |
1732 | ||
1733 | state->pdata.refclk_hz = clk_get_rate(refclk); | |
1734 | state->pdata.ddc5v_delay = DDC5V_DELAY_100_MS; | |
1735 | state->pdata.enable_hdcp = false; | |
1736 | /* A FIFO level of 16 should be enough for 2-lane 720p60 at 594 MHz. */ | |
1737 | state->pdata.fifo_level = 16; | |
1738 | /* | |
1739 | * The PLL input clock is obtained by dividing refclk by pll_prd. | |
1740 | * It must be between 6 MHz and 40 MHz, lower frequency is better. | |
1741 | */ | |
1742 | switch (state->pdata.refclk_hz) { | |
1743 | case 26000000: | |
1744 | case 27000000: | |
1745 | case 42000000: | |
1746 | state->pdata.pll_prd = state->pdata.refclk_hz / 6000000; | |
1747 | break; | |
1748 | default: | |
1749 | dev_err(dev, "unsupported refclk rate: %u Hz\n", | |
1750 | state->pdata.refclk_hz); | |
1751 | goto disable_clk; | |
1752 | } | |
1753 | ||
1754 | /* | |
1755 | * The CSI bps per lane must be between 62.5 Mbps and 1 Gbps. | |
1756 | * The default is 594 Mbps for 4-lane 1080p60 or 2-lane 720p60. | |
1757 | */ | |
1758 | bps_pr_lane = 2 * endpoint->link_frequencies[0]; | |
1759 | if (bps_pr_lane < 62500000U || bps_pr_lane > 1000000000U) { | |
1760 | dev_err(dev, "unsupported bps per lane: %u bps\n", bps_pr_lane); | |
1761 | goto disable_clk; | |
1762 | } | |
1763 | ||
1764 | /* The CSI speed per lane is refclk / pll_prd * pll_fbd */ | |
1765 | state->pdata.pll_fbd = bps_pr_lane / | |
1766 | state->pdata.refclk_hz * state->pdata.pll_prd; | |
1767 | ||
1768 | /* | |
1769 | * FIXME: These timings are from REF_02 for 594 Mbps per lane (297 MHz | |
1770 | * link frequency). In principle it should be possible to calculate | |
1771 | * them based on link frequency and resolution. | |
1772 | */ | |
1773 | if (bps_pr_lane != 594000000U) | |
1774 | dev_warn(dev, "untested bps per lane: %u bps\n", bps_pr_lane); | |
1775 | state->pdata.lineinitcnt = 0xe80; | |
1776 | state->pdata.lptxtimecnt = 0x003; | |
1777 | /* tclk-preparecnt: 3, tclk-zerocnt: 20 */ | |
1778 | state->pdata.tclk_headercnt = 0x1403; | |
1779 | state->pdata.tclk_trailcnt = 0x00; | |
1780 | /* ths-preparecnt: 3, ths-zerocnt: 1 */ | |
1781 | state->pdata.ths_headercnt = 0x0103; | |
1782 | state->pdata.twakeup = 0x4882; | |
1783 | state->pdata.tclk_postcnt = 0x008; | |
1784 | state->pdata.ths_trailcnt = 0x2; | |
1785 | state->pdata.hstxvregcnt = 0; | |
1786 | ||
1e137d92 UKK |
1787 | state->reset_gpio = devm_gpiod_get_optional(dev, "reset", |
1788 | GPIOD_OUT_LOW); | |
25614824 PZ |
1789 | if (IS_ERR(state->reset_gpio)) { |
1790 | dev_err(dev, "failed to get reset gpio\n"); | |
1791 | ret = PTR_ERR(state->reset_gpio); | |
1792 | goto disable_clk; | |
1793 | } | |
1794 | ||
1e137d92 UKK |
1795 | if (state->reset_gpio) |
1796 | tc358743_gpio_reset(state); | |
25614824 PZ |
1797 | |
1798 | ret = 0; | |
1799 | goto free_endpoint; | |
1800 | ||
1801 | disable_clk: | |
1802 | clk_disable_unprepare(refclk); | |
1803 | free_endpoint: | |
1804 | v4l2_of_free_endpoint(endpoint); | |
1805 | return ret; | |
1806 | } | |
1807 | #else | |
1808 | static inline int tc358743_probe_of(struct tc358743_state *state) | |
1809 | { | |
1810 | return -ENODEV; | |
1811 | } | |
1812 | #endif | |
1813 | ||
d32d9864 MR |
1814 | static int tc358743_probe(struct i2c_client *client, |
1815 | const struct i2c_device_id *id) | |
1816 | { | |
1817 | static struct v4l2_dv_timings default_timing = | |
1818 | V4L2_DV_BT_CEA_640X480P59_94; | |
1819 | struct tc358743_state *state; | |
1820 | struct tc358743_platform_data *pdata = client->dev.platform_data; | |
1821 | struct v4l2_subdev *sd; | |
1822 | int err; | |
1823 | ||
1824 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
1825 | return -EIO; | |
1826 | v4l_dbg(1, debug, client, "chip found @ 0x%x (%s)\n", | |
1827 | client->addr << 1, client->adapter->name); | |
1828 | ||
1829 | state = devm_kzalloc(&client->dev, sizeof(struct tc358743_state), | |
1830 | GFP_KERNEL); | |
1831 | if (!state) | |
1832 | return -ENOMEM; | |
1833 | ||
25614824 PZ |
1834 | state->i2c_client = client; |
1835 | ||
d32d9864 | 1836 | /* platform data */ |
25614824 PZ |
1837 | if (pdata) { |
1838 | state->pdata = *pdata; | |
1839 | state->bus.flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; | |
1840 | } else { | |
1841 | err = tc358743_probe_of(state); | |
1842 | if (err == -ENODEV) | |
1843 | v4l_err(client, "No platform data!\n"); | |
1844 | if (err) | |
1845 | return err; | |
d32d9864 | 1846 | } |
d32d9864 | 1847 | |
d32d9864 MR |
1848 | sd = &state->sd; |
1849 | v4l2_i2c_subdev_init(sd, client, &tc358743_ops); | |
8ec23da7 | 1850 | sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; |
d32d9864 MR |
1851 | |
1852 | /* i2c access */ | |
1853 | if ((i2c_rd16(sd, CHIPID) & MASK_CHIPID) != 0) { | |
1854 | v4l2_info(sd, "not a TC358743 on address 0x%x\n", | |
1855 | client->addr << 1); | |
1856 | return -ENODEV; | |
1857 | } | |
1858 | ||
1859 | /* control handlers */ | |
1860 | v4l2_ctrl_handler_init(&state->hdl, 3); | |
1861 | ||
1862 | /* private controls */ | |
1863 | state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(&state->hdl, NULL, | |
1864 | V4L2_CID_DV_RX_POWER_PRESENT, 0, 1, 0, 0); | |
1865 | ||
1866 | /* custom controls */ | |
1867 | state->audio_sampling_rate_ctrl = v4l2_ctrl_new_custom(&state->hdl, | |
1868 | &tc358743_ctrl_audio_sampling_rate, NULL); | |
1869 | ||
1870 | state->audio_present_ctrl = v4l2_ctrl_new_custom(&state->hdl, | |
1871 | &tc358743_ctrl_audio_present, NULL); | |
1872 | ||
1873 | sd->ctrl_handler = &state->hdl; | |
1874 | if (state->hdl.error) { | |
1875 | err = state->hdl.error; | |
1876 | goto err_hdl; | |
1877 | } | |
1878 | ||
1879 | if (tc358743_update_controls(sd)) { | |
1880 | err = -ENODEV; | |
1881 | goto err_hdl; | |
1882 | } | |
1883 | ||
1884 | /* work queues */ | |
1885 | state->work_queues = create_singlethread_workqueue(client->name); | |
1886 | if (!state->work_queues) { | |
1887 | v4l2_err(sd, "Could not create work queue\n"); | |
1888 | err = -ENOMEM; | |
1889 | goto err_hdl; | |
1890 | } | |
1891 | ||
4c5211a1 | 1892 | state->pad.flags = MEDIA_PAD_FL_SOURCE; |
ab22e77c | 1893 | err = media_entity_pads_init(&sd->entity, 1, &state->pad); |
4c5211a1 PZ |
1894 | if (err < 0) |
1895 | goto err_hdl; | |
1896 | ||
1897 | sd->dev = &client->dev; | |
1898 | err = v4l2_async_register_subdev(sd); | |
1899 | if (err < 0) | |
1900 | goto err_hdl; | |
1901 | ||
d32d9864 MR |
1902 | mutex_init(&state->confctl_mutex); |
1903 | ||
1904 | INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug, | |
1905 | tc358743_delayed_work_enable_hotplug); | |
1906 | ||
1907 | tc358743_initial_setup(sd); | |
1908 | ||
1909 | tc358743_s_dv_timings(sd, &default_timing); | |
1910 | ||
1911 | state->mbus_fmt_code = MEDIA_BUS_FMT_RGB888_1X24; | |
1912 | tc358743_set_csi_color_space(sd); | |
1913 | ||
1914 | tc358743_init_interrupts(sd); | |
d747b806 PZ |
1915 | |
1916 | if (state->i2c_client->irq) { | |
1917 | err = devm_request_threaded_irq(&client->dev, | |
1918 | state->i2c_client->irq, | |
1919 | NULL, tc358743_irq_handler, | |
1920 | IRQF_TRIGGER_HIGH | IRQF_ONESHOT, | |
1921 | "tc358743", state); | |
1922 | if (err) | |
1923 | goto err_work_queues; | |
1924 | } | |
1925 | ||
d32d9864 MR |
1926 | tc358743_enable_interrupts(sd, tx_5v_power_present(sd)); |
1927 | i2c_wr16(sd, INTMASK, ~(MASK_HDMI_MSK | MASK_CSI_MSK) & 0xffff); | |
1928 | ||
1929 | err = v4l2_ctrl_handler_setup(sd->ctrl_handler); | |
1930 | if (err) | |
1931 | goto err_work_queues; | |
1932 | ||
1933 | v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name, | |
1934 | client->addr << 1, client->adapter->name); | |
1935 | ||
1936 | return 0; | |
1937 | ||
1938 | err_work_queues: | |
1939 | cancel_delayed_work(&state->delayed_work_enable_hotplug); | |
1940 | destroy_workqueue(state->work_queues); | |
1941 | mutex_destroy(&state->confctl_mutex); | |
1942 | err_hdl: | |
4c5211a1 | 1943 | media_entity_cleanup(&sd->entity); |
d32d9864 MR |
1944 | v4l2_ctrl_handler_free(&state->hdl); |
1945 | return err; | |
1946 | } | |
1947 | ||
1948 | static int tc358743_remove(struct i2c_client *client) | |
1949 | { | |
1950 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | |
1951 | struct tc358743_state *state = to_state(sd); | |
1952 | ||
1953 | cancel_delayed_work(&state->delayed_work_enable_hotplug); | |
1954 | destroy_workqueue(state->work_queues); | |
4c5211a1 | 1955 | v4l2_async_unregister_subdev(sd); |
d32d9864 MR |
1956 | v4l2_device_unregister_subdev(sd); |
1957 | mutex_destroy(&state->confctl_mutex); | |
4c5211a1 | 1958 | media_entity_cleanup(&sd->entity); |
d32d9864 MR |
1959 | v4l2_ctrl_handler_free(&state->hdl); |
1960 | ||
1961 | return 0; | |
1962 | } | |
1963 | ||
1964 | static struct i2c_device_id tc358743_id[] = { | |
1965 | {"tc358743", 0}, | |
1966 | {} | |
1967 | }; | |
1968 | ||
1969 | MODULE_DEVICE_TABLE(i2c, tc358743_id); | |
1970 | ||
1971 | static struct i2c_driver tc358743_driver = { | |
1972 | .driver = { | |
d32d9864 MR |
1973 | .name = "tc358743", |
1974 | }, | |
1975 | .probe = tc358743_probe, | |
1976 | .remove = tc358743_remove, | |
1977 | .id_table = tc358743_id, | |
1978 | }; | |
1979 | ||
1980 | module_i2c_driver(tc358743_driver); |