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e2842570 | 1 | // SPDX-License-Identifier: GPL-2.0 |
5402626c BG |
2 | /* |
3 | * Copyright (C) STMicroelectronics SA 2014 | |
4 | * Author: Vincent Abriou <vincent.abriou@st.com> for STMicroelectronics. | |
5402626c BG |
5 | */ |
6 | ||
7 | #include <linux/clk.h> | |
8 | #include <linux/component.h> | |
7ea6e6e4 | 9 | #include <linux/debugfs.h> |
5402626c BG |
10 | #include <linux/hdmi.h> |
11 | #include <linux/module.h> | |
acff2f86 | 12 | #include <linux/io.h> |
5402626c BG |
13 | #include <linux/platform_device.h> |
14 | #include <linux/reset.h> | |
15 | ||
de4b00b0 | 16 | #include <drm/drm_atomic_helper.h> |
ee68c743 | 17 | #include <drm/drm_bridge.h> |
5e2f97a9 SR |
18 | #include <drm/drm_debugfs.h> |
19 | #include <drm/drm_drv.h> | |
5402626c | 20 | #include <drm/drm_edid.h> |
5e2f97a9 SR |
21 | #include <drm/drm_file.h> |
22 | #include <drm/drm_print.h> | |
fcd70cd3 | 23 | #include <drm/drm_probe_helper.h> |
5402626c | 24 | |
2c348e50 AP |
25 | #include <sound/hdmi-codec.h> |
26 | ||
5402626c BG |
27 | #include "sti_hdmi.h" |
28 | #include "sti_hdmi_tx3g4c28phy.h" | |
5402626c BG |
29 | #include "sti_vtg.h" |
30 | ||
31 | #define HDMI_CFG 0x0000 | |
32 | #define HDMI_INT_EN 0x0004 | |
33 | #define HDMI_INT_STA 0x0008 | |
34 | #define HDMI_INT_CLR 0x000C | |
35 | #define HDMI_STA 0x0010 | |
36 | #define HDMI_ACTIVE_VID_XMIN 0x0100 | |
37 | #define HDMI_ACTIVE_VID_XMAX 0x0104 | |
38 | #define HDMI_ACTIVE_VID_YMIN 0x0108 | |
39 | #define HDMI_ACTIVE_VID_YMAX 0x010C | |
40 | #define HDMI_DFLT_CHL0_DAT 0x0110 | |
41 | #define HDMI_DFLT_CHL1_DAT 0x0114 | |
42 | #define HDMI_DFLT_CHL2_DAT 0x0118 | |
2c348e50 AP |
43 | #define HDMI_AUDIO_CFG 0x0200 |
44 | #define HDMI_SPDIF_FIFO_STATUS 0x0204 | |
5402626c BG |
45 | #define HDMI_SW_DI_1_HEAD_WORD 0x0210 |
46 | #define HDMI_SW_DI_1_PKT_WORD0 0x0214 | |
47 | #define HDMI_SW_DI_1_PKT_WORD1 0x0218 | |
48 | #define HDMI_SW_DI_1_PKT_WORD2 0x021C | |
49 | #define HDMI_SW_DI_1_PKT_WORD3 0x0220 | |
50 | #define HDMI_SW_DI_1_PKT_WORD4 0x0224 | |
51 | #define HDMI_SW_DI_1_PKT_WORD5 0x0228 | |
52 | #define HDMI_SW_DI_1_PKT_WORD6 0x022C | |
53 | #define HDMI_SW_DI_CFG 0x0230 | |
2c348e50 AP |
54 | #define HDMI_SAMPLE_FLAT_MASK 0x0244 |
55 | #define HDMI_AUDN 0x0400 | |
56 | #define HDMI_AUD_CTS 0x0404 | |
cffe1e89 AP |
57 | #define HDMI_SW_DI_2_HEAD_WORD 0x0600 |
58 | #define HDMI_SW_DI_2_PKT_WORD0 0x0604 | |
59 | #define HDMI_SW_DI_2_PKT_WORD1 0x0608 | |
60 | #define HDMI_SW_DI_2_PKT_WORD2 0x060C | |
61 | #define HDMI_SW_DI_2_PKT_WORD3 0x0610 | |
62 | #define HDMI_SW_DI_2_PKT_WORD4 0x0614 | |
63 | #define HDMI_SW_DI_2_PKT_WORD5 0x0618 | |
64 | #define HDMI_SW_DI_2_PKT_WORD6 0x061C | |
e42e7bd7 VA |
65 | #define HDMI_SW_DI_3_HEAD_WORD 0x0620 |
66 | #define HDMI_SW_DI_3_PKT_WORD0 0x0624 | |
67 | #define HDMI_SW_DI_3_PKT_WORD1 0x0628 | |
68 | #define HDMI_SW_DI_3_PKT_WORD2 0x062C | |
69 | #define HDMI_SW_DI_3_PKT_WORD3 0x0630 | |
70 | #define HDMI_SW_DI_3_PKT_WORD4 0x0634 | |
71 | #define HDMI_SW_DI_3_PKT_WORD5 0x0638 | |
72 | #define HDMI_SW_DI_3_PKT_WORD6 0x063C | |
5402626c BG |
73 | |
74 | #define HDMI_IFRAME_SLOT_AVI 1 | |
cffe1e89 | 75 | #define HDMI_IFRAME_SLOT_AUDIO 2 |
e42e7bd7 | 76 | #define HDMI_IFRAME_SLOT_VENDOR 3 |
5402626c BG |
77 | |
78 | #define XCAT(prefix, x, suffix) prefix ## x ## suffix | |
79 | #define HDMI_SW_DI_N_HEAD_WORD(x) XCAT(HDMI_SW_DI_, x, _HEAD_WORD) | |
80 | #define HDMI_SW_DI_N_PKT_WORD0(x) XCAT(HDMI_SW_DI_, x, _PKT_WORD0) | |
81 | #define HDMI_SW_DI_N_PKT_WORD1(x) XCAT(HDMI_SW_DI_, x, _PKT_WORD1) | |
82 | #define HDMI_SW_DI_N_PKT_WORD2(x) XCAT(HDMI_SW_DI_, x, _PKT_WORD2) | |
83 | #define HDMI_SW_DI_N_PKT_WORD3(x) XCAT(HDMI_SW_DI_, x, _PKT_WORD3) | |
84 | #define HDMI_SW_DI_N_PKT_WORD4(x) XCAT(HDMI_SW_DI_, x, _PKT_WORD4) | |
85 | #define HDMI_SW_DI_N_PKT_WORD5(x) XCAT(HDMI_SW_DI_, x, _PKT_WORD5) | |
86 | #define HDMI_SW_DI_N_PKT_WORD6(x) XCAT(HDMI_SW_DI_, x, _PKT_WORD6) | |
87 | ||
181975a2 VA |
88 | #define HDMI_SW_DI_MAX_WORD 7 |
89 | ||
5402626c BG |
90 | #define HDMI_IFRAME_DISABLED 0x0 |
91 | #define HDMI_IFRAME_SINGLE_SHOT 0x1 | |
92 | #define HDMI_IFRAME_FIELD 0x2 | |
93 | #define HDMI_IFRAME_FRAME 0x3 | |
94 | #define HDMI_IFRAME_MASK 0x3 | |
95 | #define HDMI_IFRAME_CFG_DI_N(x, n) ((x) << ((n-1)*4)) /* n from 1 to 6 */ | |
96 | ||
97 | #define HDMI_CFG_DEVICE_EN BIT(0) | |
98 | #define HDMI_CFG_HDMI_NOT_DVI BIT(1) | |
99 | #define HDMI_CFG_HDCP_EN BIT(2) | |
100 | #define HDMI_CFG_ESS_NOT_OESS BIT(3) | |
101 | #define HDMI_CFG_H_SYNC_POL_NEG BIT(4) | |
5402626c BG |
102 | #define HDMI_CFG_V_SYNC_POL_NEG BIT(6) |
103 | #define HDMI_CFG_422_EN BIT(8) | |
104 | #define HDMI_CFG_FIFO_OVERRUN_CLR BIT(12) | |
105 | #define HDMI_CFG_FIFO_UNDERRUN_CLR BIT(13) | |
106 | #define HDMI_CFG_SW_RST_EN BIT(31) | |
107 | ||
108 | #define HDMI_INT_GLOBAL BIT(0) | |
109 | #define HDMI_INT_SW_RST BIT(1) | |
110 | #define HDMI_INT_PIX_CAP BIT(3) | |
111 | #define HDMI_INT_HOT_PLUG BIT(4) | |
112 | #define HDMI_INT_DLL_LCK BIT(5) | |
113 | #define HDMI_INT_NEW_FRAME BIT(6) | |
114 | #define HDMI_INT_GENCTRL_PKT BIT(7) | |
2c348e50 | 115 | #define HDMI_INT_AUDIO_FIFO_XRUN BIT(8) |
5402626c BG |
116 | #define HDMI_INT_SINK_TERM_PRESENT BIT(11) |
117 | ||
118 | #define HDMI_DEFAULT_INT (HDMI_INT_SINK_TERM_PRESENT \ | |
119 | | HDMI_INT_DLL_LCK \ | |
120 | | HDMI_INT_HOT_PLUG \ | |
121 | | HDMI_INT_GLOBAL) | |
122 | ||
123 | #define HDMI_WORKING_INT (HDMI_INT_SINK_TERM_PRESENT \ | |
2c348e50 | 124 | | HDMI_INT_AUDIO_FIFO_XRUN \ |
5402626c BG |
125 | | HDMI_INT_GENCTRL_PKT \ |
126 | | HDMI_INT_NEW_FRAME \ | |
127 | | HDMI_INT_DLL_LCK \ | |
128 | | HDMI_INT_HOT_PLUG \ | |
129 | | HDMI_INT_PIX_CAP \ | |
130 | | HDMI_INT_SW_RST \ | |
131 | | HDMI_INT_GLOBAL) | |
132 | ||
133 | #define HDMI_STA_SW_RST BIT(1) | |
134 | ||
2c348e50 AP |
135 | #define HDMI_AUD_CFG_8CH BIT(0) |
136 | #define HDMI_AUD_CFG_SPDIF_DIV_2 BIT(1) | |
137 | #define HDMI_AUD_CFG_SPDIF_DIV_3 BIT(2) | |
138 | #define HDMI_AUD_CFG_SPDIF_CLK_DIV_4 (BIT(1) | BIT(2)) | |
139 | #define HDMI_AUD_CFG_CTS_CLK_256FS BIT(12) | |
140 | #define HDMI_AUD_CFG_DTS_INVALID BIT(16) | |
141 | #define HDMI_AUD_CFG_ONE_BIT_INVALID (BIT(18) | BIT(19) | BIT(20) | BIT(21)) | |
142 | #define HDMI_AUD_CFG_CH12_VALID BIT(28) | |
143 | #define HDMI_AUD_CFG_CH34_VALID BIT(29) | |
144 | #define HDMI_AUD_CFG_CH56_VALID BIT(30) | |
145 | #define HDMI_AUD_CFG_CH78_VALID BIT(31) | |
146 | ||
147 | /* sample flat mask */ | |
148 | #define HDMI_SAMPLE_FLAT_NO 0 | |
149 | #define HDMI_SAMPLE_FLAT_SP0 BIT(0) | |
150 | #define HDMI_SAMPLE_FLAT_SP1 BIT(1) | |
151 | #define HDMI_SAMPLE_FLAT_SP2 BIT(2) | |
152 | #define HDMI_SAMPLE_FLAT_SP3 BIT(3) | |
153 | #define HDMI_SAMPLE_FLAT_ALL (HDMI_SAMPLE_FLAT_SP0 | HDMI_SAMPLE_FLAT_SP1 |\ | |
154 | HDMI_SAMPLE_FLAT_SP2 | HDMI_SAMPLE_FLAT_SP3) | |
155 | ||
cffe1e89 AP |
156 | #define HDMI_INFOFRAME_HEADER_TYPE(x) (((x) & 0xff) << 0) |
157 | #define HDMI_INFOFRAME_HEADER_VERSION(x) (((x) & 0xff) << 8) | |
158 | #define HDMI_INFOFRAME_HEADER_LEN(x) (((x) & 0x0f) << 16) | |
159 | ||
5402626c BG |
160 | struct sti_hdmi_connector { |
161 | struct drm_connector drm_connector; | |
162 | struct drm_encoder *encoder; | |
163 | struct sti_hdmi *hdmi; | |
5671cefb | 164 | struct drm_property *colorspace_property; |
5402626c BG |
165 | }; |
166 | ||
167 | #define to_sti_hdmi_connector(x) \ | |
168 | container_of(x, struct sti_hdmi_connector, drm_connector) | |
169 | ||
170 | u32 hdmi_read(struct sti_hdmi *hdmi, int offset) | |
171 | { | |
172 | return readl(hdmi->regs + offset); | |
173 | } | |
174 | ||
175 | void hdmi_write(struct sti_hdmi *hdmi, u32 val, int offset) | |
176 | { | |
177 | writel(val, hdmi->regs + offset); | |
178 | } | |
179 | ||
180 | /** | |
181 | * HDMI interrupt handler threaded | |
182 | * | |
183 | * @irq: irq number | |
184 | * @arg: connector structure | |
185 | */ | |
186 | static irqreturn_t hdmi_irq_thread(int irq, void *arg) | |
187 | { | |
188 | struct sti_hdmi *hdmi = arg; | |
189 | ||
190 | /* Hot plug/unplug IRQ */ | |
191 | if (hdmi->irq_status & HDMI_INT_HOT_PLUG) { | |
76569207 | 192 | hdmi->hpd = readl(hdmi->regs + HDMI_STA) & HDMI_STA_HOT_PLUG; |
5402626c BG |
193 | if (hdmi->drm_dev) |
194 | drm_helper_hpd_irq_event(hdmi->drm_dev); | |
195 | } | |
196 | ||
197 | /* Sw reset and PLL lock are exclusive so we can use the same | |
198 | * event to signal them | |
199 | */ | |
200 | if (hdmi->irq_status & (HDMI_INT_SW_RST | HDMI_INT_DLL_LCK)) { | |
201 | hdmi->event_received = true; | |
202 | wake_up_interruptible(&hdmi->wait_event); | |
203 | } | |
204 | ||
2c348e50 AP |
205 | /* Audio FIFO underrun IRQ */ |
206 | if (hdmi->irq_status & HDMI_INT_AUDIO_FIFO_XRUN) | |
29ffa776 | 207 | DRM_INFO("Warning: audio FIFO underrun occurs!\n"); |
2c348e50 | 208 | |
5402626c BG |
209 | return IRQ_HANDLED; |
210 | } | |
211 | ||
212 | /** | |
213 | * HDMI interrupt handler | |
214 | * | |
215 | * @irq: irq number | |
216 | * @arg: connector structure | |
217 | */ | |
218 | static irqreturn_t hdmi_irq(int irq, void *arg) | |
219 | { | |
220 | struct sti_hdmi *hdmi = arg; | |
221 | ||
222 | /* read interrupt status */ | |
223 | hdmi->irq_status = hdmi_read(hdmi, HDMI_INT_STA); | |
224 | ||
225 | /* clear interrupt status */ | |
226 | hdmi_write(hdmi, hdmi->irq_status, HDMI_INT_CLR); | |
227 | ||
228 | /* force sync bus write */ | |
229 | hdmi_read(hdmi, HDMI_INT_STA); | |
230 | ||
231 | return IRQ_WAKE_THREAD; | |
232 | } | |
233 | ||
234 | /** | |
235 | * Set hdmi active area depending on the drm display mode selected | |
236 | * | |
237 | * @hdmi: pointer on the hdmi internal structure | |
238 | */ | |
239 | static void hdmi_active_area(struct sti_hdmi *hdmi) | |
240 | { | |
241 | u32 xmin, xmax; | |
242 | u32 ymin, ymax; | |
243 | ||
8661532a VA |
244 | xmin = sti_vtg_get_pixel_number(hdmi->mode, 1); |
245 | xmax = sti_vtg_get_pixel_number(hdmi->mode, hdmi->mode.hdisplay); | |
5402626c BG |
246 | ymin = sti_vtg_get_line_number(hdmi->mode, 0); |
247 | ymax = sti_vtg_get_line_number(hdmi->mode, hdmi->mode.vdisplay - 1); | |
248 | ||
249 | hdmi_write(hdmi, xmin, HDMI_ACTIVE_VID_XMIN); | |
250 | hdmi_write(hdmi, xmax, HDMI_ACTIVE_VID_XMAX); | |
251 | hdmi_write(hdmi, ymin, HDMI_ACTIVE_VID_YMIN); | |
252 | hdmi_write(hdmi, ymax, HDMI_ACTIVE_VID_YMAX); | |
253 | } | |
254 | ||
255 | /** | |
256 | * Overall hdmi configuration | |
257 | * | |
258 | * @hdmi: pointer on the hdmi internal structure | |
259 | */ | |
260 | static void hdmi_config(struct sti_hdmi *hdmi) | |
261 | { | |
262 | u32 conf; | |
263 | ||
264 | DRM_DEBUG_DRIVER("\n"); | |
265 | ||
266 | /* Clear overrun and underrun fifo */ | |
267 | conf = HDMI_CFG_FIFO_OVERRUN_CLR | HDMI_CFG_FIFO_UNDERRUN_CLR; | |
268 | ||
ffc4a6a1 VA |
269 | /* Select encryption type and the framing mode */ |
270 | conf |= HDMI_CFG_ESS_NOT_OESS; | |
97d7c576 | 271 | if (hdmi->hdmi_monitor) |
ffc4a6a1 | 272 | conf |= HDMI_CFG_HDMI_NOT_DVI; |
5402626c | 273 | |
5402626c BG |
274 | /* Set Hsync polarity */ |
275 | if (hdmi->mode.flags & DRM_MODE_FLAG_NHSYNC) { | |
276 | DRM_DEBUG_DRIVER("H Sync Negative\n"); | |
277 | conf |= HDMI_CFG_H_SYNC_POL_NEG; | |
278 | } | |
279 | ||
280 | /* Set Vsync polarity */ | |
281 | if (hdmi->mode.flags & DRM_MODE_FLAG_NVSYNC) { | |
282 | DRM_DEBUG_DRIVER("V Sync Negative\n"); | |
283 | conf |= HDMI_CFG_V_SYNC_POL_NEG; | |
284 | } | |
285 | ||
286 | /* Enable HDMI */ | |
287 | conf |= HDMI_CFG_DEVICE_EN; | |
288 | ||
289 | hdmi_write(hdmi, conf, HDMI_CFG); | |
290 | } | |
291 | ||
181975a2 VA |
292 | /* |
293 | * Helper to reset info frame | |
294 | * | |
295 | * @hdmi: pointer on the hdmi internal structure | |
296 | * @slot: infoframe to reset | |
297 | */ | |
298 | static void hdmi_infoframe_reset(struct sti_hdmi *hdmi, | |
299 | u32 slot) | |
300 | { | |
301 | u32 val, i; | |
302 | u32 head_offset, pack_offset; | |
303 | ||
304 | switch (slot) { | |
305 | case HDMI_IFRAME_SLOT_AVI: | |
306 | head_offset = HDMI_SW_DI_N_HEAD_WORD(HDMI_IFRAME_SLOT_AVI); | |
307 | pack_offset = HDMI_SW_DI_N_PKT_WORD0(HDMI_IFRAME_SLOT_AVI); | |
308 | break; | |
309 | case HDMI_IFRAME_SLOT_AUDIO: | |
310 | head_offset = HDMI_SW_DI_N_HEAD_WORD(HDMI_IFRAME_SLOT_AUDIO); | |
311 | pack_offset = HDMI_SW_DI_N_PKT_WORD0(HDMI_IFRAME_SLOT_AUDIO); | |
312 | break; | |
e42e7bd7 VA |
313 | case HDMI_IFRAME_SLOT_VENDOR: |
314 | head_offset = HDMI_SW_DI_N_HEAD_WORD(HDMI_IFRAME_SLOT_VENDOR); | |
315 | pack_offset = HDMI_SW_DI_N_PKT_WORD0(HDMI_IFRAME_SLOT_VENDOR); | |
316 | break; | |
181975a2 VA |
317 | default: |
318 | DRM_ERROR("unsupported infoframe slot: %#x\n", slot); | |
319 | return; | |
320 | } | |
321 | ||
322 | /* Disable transmission for the selected slot */ | |
323 | val = hdmi_read(hdmi, HDMI_SW_DI_CFG); | |
324 | val &= ~HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, slot); | |
325 | hdmi_write(hdmi, val, HDMI_SW_DI_CFG); | |
326 | ||
327 | /* Reset info frame registers */ | |
328 | hdmi_write(hdmi, 0x0, head_offset); | |
329 | for (i = 0; i < HDMI_SW_DI_MAX_WORD; i += sizeof(u32)) | |
330 | hdmi_write(hdmi, 0x0, pack_offset + i); | |
331 | } | |
332 | ||
cffe1e89 AP |
333 | /** |
334 | * Helper to concatenate infoframe in 32 bits word | |
335 | * | |
336 | * @ptr: pointer on the hdmi internal structure | |
cffe1e89 AP |
337 | * @size: size to write |
338 | */ | |
339 | static inline unsigned int hdmi_infoframe_subpack(const u8 *ptr, size_t size) | |
340 | { | |
341 | unsigned long value = 0; | |
342 | size_t i; | |
343 | ||
344 | for (i = size; i > 0; i--) | |
345 | value = (value << 8) | ptr[i - 1]; | |
346 | ||
347 | return value; | |
348 | } | |
349 | ||
350 | /** | |
351 | * Helper to write info frame | |
352 | * | |
353 | * @hdmi: pointer on the hdmi internal structure | |
354 | * @data: infoframe to write | |
355 | * @size: size to write | |
356 | */ | |
e42e7bd7 VA |
357 | static void hdmi_infoframe_write_infopack(struct sti_hdmi *hdmi, |
358 | const u8 *data, | |
359 | size_t size) | |
cffe1e89 AP |
360 | { |
361 | const u8 *ptr = data; | |
362 | u32 val, slot, mode, i; | |
363 | u32 head_offset, pack_offset; | |
cffe1e89 AP |
364 | |
365 | switch (*ptr) { | |
366 | case HDMI_INFOFRAME_TYPE_AVI: | |
367 | slot = HDMI_IFRAME_SLOT_AVI; | |
368 | mode = HDMI_IFRAME_FIELD; | |
369 | head_offset = HDMI_SW_DI_N_HEAD_WORD(HDMI_IFRAME_SLOT_AVI); | |
370 | pack_offset = HDMI_SW_DI_N_PKT_WORD0(HDMI_IFRAME_SLOT_AVI); | |
cffe1e89 | 371 | break; |
cffe1e89 AP |
372 | case HDMI_INFOFRAME_TYPE_AUDIO: |
373 | slot = HDMI_IFRAME_SLOT_AUDIO; | |
374 | mode = HDMI_IFRAME_FRAME; | |
375 | head_offset = HDMI_SW_DI_N_HEAD_WORD(HDMI_IFRAME_SLOT_AUDIO); | |
376 | pack_offset = HDMI_SW_DI_N_PKT_WORD0(HDMI_IFRAME_SLOT_AUDIO); | |
cffe1e89 | 377 | break; |
e42e7bd7 VA |
378 | case HDMI_INFOFRAME_TYPE_VENDOR: |
379 | slot = HDMI_IFRAME_SLOT_VENDOR; | |
380 | mode = HDMI_IFRAME_FRAME; | |
381 | head_offset = HDMI_SW_DI_N_HEAD_WORD(HDMI_IFRAME_SLOT_VENDOR); | |
382 | pack_offset = HDMI_SW_DI_N_PKT_WORD0(HDMI_IFRAME_SLOT_VENDOR); | |
383 | break; | |
cffe1e89 AP |
384 | default: |
385 | DRM_ERROR("unsupported infoframe type: %#x\n", *ptr); | |
386 | return; | |
387 | } | |
388 | ||
389 | /* Disable transmission slot for updated infoframe */ | |
390 | val = hdmi_read(hdmi, HDMI_SW_DI_CFG); | |
391 | val &= ~HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, slot); | |
392 | hdmi_write(hdmi, val, HDMI_SW_DI_CFG); | |
393 | ||
394 | val = HDMI_INFOFRAME_HEADER_TYPE(*ptr++); | |
395 | val |= HDMI_INFOFRAME_HEADER_VERSION(*ptr++); | |
396 | val |= HDMI_INFOFRAME_HEADER_LEN(*ptr++); | |
397 | writel(val, hdmi->regs + head_offset); | |
398 | ||
399 | /* | |
400 | * Each subpack contains 4 bytes | |
401 | * The First Bytes of the first subpacket must contain the checksum | |
e42e7bd7 | 402 | * Packet size is increase by one. |
cffe1e89 | 403 | */ |
e42e7bd7 | 404 | size = size - HDMI_INFOFRAME_HEADER_SIZE + 1; |
cffe1e89 AP |
405 | for (i = 0; i < size; i += sizeof(u32)) { |
406 | size_t num; | |
407 | ||
408 | num = min_t(size_t, size - i, sizeof(u32)); | |
409 | val = hdmi_infoframe_subpack(ptr, num); | |
410 | ptr += sizeof(u32); | |
411 | writel(val, hdmi->regs + pack_offset + i); | |
412 | } | |
413 | ||
414 | /* Enable transmission slot for updated infoframe */ | |
415 | val = hdmi_read(hdmi, HDMI_SW_DI_CFG); | |
50f2138a | 416 | val |= HDMI_IFRAME_CFG_DI_N(mode, slot); |
cffe1e89 AP |
417 | hdmi_write(hdmi, val, HDMI_SW_DI_CFG); |
418 | } | |
419 | ||
5402626c BG |
420 | /** |
421 | * Prepare and configure the AVI infoframe | |
422 | * | |
423 | * AVI infoframe are transmitted at least once per two video field and | |
424 | * contains information about HDMI transmission mode such as color space, | |
425 | * colorimetry, ... | |
426 | * | |
427 | * @hdmi: pointer on the hdmi internal structure | |
428 | * | |
429 | * Return negative value if error occurs | |
430 | */ | |
431 | static int hdmi_avi_infoframe_config(struct sti_hdmi *hdmi) | |
432 | { | |
433 | struct drm_display_mode *mode = &hdmi->mode; | |
434 | struct hdmi_avi_infoframe infoframe; | |
435 | u8 buffer[HDMI_INFOFRAME_SIZE(AVI)]; | |
5402626c BG |
436 | int ret; |
437 | ||
438 | DRM_DEBUG_DRIVER("\n"); | |
439 | ||
13d0add3 VS |
440 | ret = drm_hdmi_avi_infoframe_from_display_mode(&infoframe, |
441 | hdmi->drm_connector, mode); | |
5402626c BG |
442 | if (ret < 0) { |
443 | DRM_ERROR("failed to setup AVI infoframe: %d\n", ret); | |
444 | return ret; | |
445 | } | |
446 | ||
447 | /* fixed infoframe configuration not linked to the mode */ | |
5671cefb | 448 | infoframe.colorspace = hdmi->colorspace; |
5402626c BG |
449 | infoframe.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT; |
450 | infoframe.colorimetry = HDMI_COLORIMETRY_NONE; | |
451 | ||
452 | ret = hdmi_avi_infoframe_pack(&infoframe, buffer, sizeof(buffer)); | |
453 | if (ret < 0) { | |
454 | DRM_ERROR("failed to pack AVI infoframe: %d\n", ret); | |
455 | return ret; | |
456 | } | |
457 | ||
e42e7bd7 | 458 | hdmi_infoframe_write_infopack(hdmi, buffer, ret); |
5402626c | 459 | |
cffe1e89 AP |
460 | return 0; |
461 | } | |
462 | ||
463 | /** | |
464 | * Prepare and configure the AUDIO infoframe | |
465 | * | |
466 | * AUDIO infoframe are transmitted once per frame and | |
467 | * contains information about HDMI transmission mode such as audio codec, | |
468 | * sample size, ... | |
469 | * | |
470 | * @hdmi: pointer on the hdmi internal structure | |
471 | * | |
472 | * Return negative value if error occurs | |
473 | */ | |
474 | static int hdmi_audio_infoframe_config(struct sti_hdmi *hdmi) | |
475 | { | |
2c348e50 | 476 | struct hdmi_audio_params *audio = &hdmi->audio; |
cffe1e89 | 477 | u8 buffer[HDMI_INFOFRAME_SIZE(AUDIO)]; |
2c348e50 AP |
478 | int ret, val; |
479 | ||
480 | DRM_DEBUG_DRIVER("enter %s, AIF %s\n", __func__, | |
481 | audio->enabled ? "enable" : "disable"); | |
482 | if (audio->enabled) { | |
483 | /* set audio parameters stored*/ | |
484 | ret = hdmi_audio_infoframe_pack(&audio->cea, buffer, | |
485 | sizeof(buffer)); | |
486 | if (ret < 0) { | |
487 | DRM_ERROR("failed to pack audio infoframe: %d\n", ret); | |
488 | return ret; | |
489 | } | |
490 | hdmi_infoframe_write_infopack(hdmi, buffer, ret); | |
491 | } else { | |
492 | /*disable audio info frame transmission */ | |
493 | val = hdmi_read(hdmi, HDMI_SW_DI_CFG); | |
494 | val &= ~HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, | |
495 | HDMI_IFRAME_SLOT_AUDIO); | |
496 | hdmi_write(hdmi, val, HDMI_SW_DI_CFG); | |
cffe1e89 AP |
497 | } |
498 | ||
e42e7bd7 VA |
499 | return 0; |
500 | } | |
501 | ||
502 | /* | |
503 | * Prepare and configure the VS infoframe | |
504 | * | |
505 | * Vendor Specific infoframe are transmitted once per frame and | |
506 | * contains vendor specific information. | |
507 | * | |
508 | * @hdmi: pointer on the hdmi internal structure | |
509 | * | |
510 | * Return negative value if error occurs | |
511 | */ | |
512 | #define HDMI_VENDOR_INFOFRAME_MAX_SIZE 6 | |
513 | static int hdmi_vendor_infoframe_config(struct sti_hdmi *hdmi) | |
514 | { | |
515 | struct drm_display_mode *mode = &hdmi->mode; | |
516 | struct hdmi_vendor_infoframe infoframe; | |
517 | u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_VENDOR_INFOFRAME_MAX_SIZE]; | |
518 | int ret; | |
519 | ||
520 | DRM_DEBUG_DRIVER("\n"); | |
521 | ||
f1781e9b VS |
522 | ret = drm_hdmi_vendor_infoframe_from_display_mode(&infoframe, |
523 | hdmi->drm_connector, | |
524 | mode); | |
e42e7bd7 VA |
525 | if (ret < 0) { |
526 | /* | |
527 | * Going into that statement does not means vendor infoframe | |
528 | * fails. It just informed us that vendor infoframe is not | |
529 | * needed for the selected mode. Only 4k or stereoscopic 3D | |
530 | * mode requires vendor infoframe. So just simply return 0. | |
531 | */ | |
532 | return 0; | |
533 | } | |
534 | ||
535 | ret = hdmi_vendor_infoframe_pack(&infoframe, buffer, sizeof(buffer)); | |
536 | if (ret < 0) { | |
537 | DRM_ERROR("failed to pack VS infoframe: %d\n", ret); | |
538 | return ret; | |
539 | } | |
540 | ||
541 | hdmi_infoframe_write_infopack(hdmi, buffer, ret); | |
5402626c BG |
542 | |
543 | return 0; | |
544 | } | |
545 | ||
5dec1aff BG |
546 | #define HDMI_TIMEOUT_SWRESET 100 /*milliseconds */ |
547 | ||
5402626c BG |
548 | /** |
549 | * Software reset of the hdmi subsystem | |
550 | * | |
551 | * @hdmi: pointer on the hdmi internal structure | |
552 | * | |
553 | */ | |
5402626c BG |
554 | static void hdmi_swreset(struct sti_hdmi *hdmi) |
555 | { | |
556 | u32 val; | |
557 | ||
558 | DRM_DEBUG_DRIVER("\n"); | |
559 | ||
560 | /* Enable hdmi_audio clock only during hdmi reset */ | |
561 | if (clk_prepare_enable(hdmi->clk_audio)) | |
562 | DRM_INFO("Failed to prepare/enable hdmi_audio clk\n"); | |
563 | ||
564 | /* Sw reset */ | |
565 | hdmi->event_received = false; | |
566 | ||
567 | val = hdmi_read(hdmi, HDMI_CFG); | |
568 | val |= HDMI_CFG_SW_RST_EN; | |
569 | hdmi_write(hdmi, val, HDMI_CFG); | |
570 | ||
571 | /* Wait reset completed */ | |
572 | wait_event_interruptible_timeout(hdmi->wait_event, | |
7c0ca70b | 573 | hdmi->event_received, |
5402626c BG |
574 | msecs_to_jiffies |
575 | (HDMI_TIMEOUT_SWRESET)); | |
576 | ||
577 | /* | |
578 | * HDMI_STA_SW_RST bit is set to '1' when SW_RST bit in HDMI_CFG is | |
579 | * set to '1' and clk_audio is running. | |
580 | */ | |
581 | if ((hdmi_read(hdmi, HDMI_STA) & HDMI_STA_SW_RST) == 0) | |
582 | DRM_DEBUG_DRIVER("Warning: HDMI sw reset timeout occurs\n"); | |
583 | ||
584 | val = hdmi_read(hdmi, HDMI_CFG); | |
585 | val &= ~HDMI_CFG_SW_RST_EN; | |
586 | hdmi_write(hdmi, val, HDMI_CFG); | |
587 | ||
588 | /* Disable hdmi_audio clock. Not used anymore for drm purpose */ | |
589 | clk_disable_unprepare(hdmi->clk_audio); | |
590 | } | |
591 | ||
7ea6e6e4 VA |
592 | #define DBGFS_PRINT_STR(str1, str2) seq_printf(s, "%-24s %s\n", str1, str2) |
593 | #define DBGFS_PRINT_INT(str1, int2) seq_printf(s, "%-24s %d\n", str1, int2) | |
594 | #define DBGFS_DUMP(str, reg) seq_printf(s, "%s %-25s 0x%08X", str, #reg, \ | |
595 | hdmi_read(hdmi, reg)) | |
596 | #define DBGFS_DUMP_DI(reg, slot) DBGFS_DUMP("\n", reg(slot)) | |
597 | ||
598 | static void hdmi_dbg_cfg(struct seq_file *s, int val) | |
599 | { | |
600 | int tmp; | |
601 | ||
e9635133 | 602 | seq_putc(s, '\t'); |
7ea6e6e4 VA |
603 | tmp = val & HDMI_CFG_HDMI_NOT_DVI; |
604 | DBGFS_PRINT_STR("mode:", tmp ? "HDMI" : "DVI"); | |
605 | seq_puts(s, "\t\t\t\t\t"); | |
606 | tmp = val & HDMI_CFG_HDCP_EN; | |
607 | DBGFS_PRINT_STR("HDCP:", tmp ? "enable" : "disable"); | |
608 | seq_puts(s, "\t\t\t\t\t"); | |
609 | tmp = val & HDMI_CFG_ESS_NOT_OESS; | |
610 | DBGFS_PRINT_STR("HDCP mode:", tmp ? "ESS enable" : "OESS enable"); | |
611 | seq_puts(s, "\t\t\t\t\t"); | |
7ea6e6e4 VA |
612 | tmp = val & HDMI_CFG_H_SYNC_POL_NEG; |
613 | DBGFS_PRINT_STR("Hsync polarity:", tmp ? "inverted" : "normal"); | |
614 | seq_puts(s, "\t\t\t\t\t"); | |
615 | tmp = val & HDMI_CFG_V_SYNC_POL_NEG; | |
616 | DBGFS_PRINT_STR("Vsync polarity:", tmp ? "inverted" : "normal"); | |
617 | seq_puts(s, "\t\t\t\t\t"); | |
618 | tmp = val & HDMI_CFG_422_EN; | |
619 | DBGFS_PRINT_STR("YUV422 format:", tmp ? "enable" : "disable"); | |
620 | } | |
621 | ||
622 | static void hdmi_dbg_sta(struct seq_file *s, int val) | |
623 | { | |
624 | int tmp; | |
625 | ||
e9635133 | 626 | seq_putc(s, '\t'); |
7ea6e6e4 VA |
627 | tmp = (val & HDMI_STA_DLL_LCK); |
628 | DBGFS_PRINT_STR("pll:", tmp ? "locked" : "not locked"); | |
629 | seq_puts(s, "\t\t\t\t\t"); | |
630 | tmp = (val & HDMI_STA_HOT_PLUG); | |
631 | DBGFS_PRINT_STR("hdmi cable:", tmp ? "connected" : "not connected"); | |
632 | } | |
633 | ||
634 | static void hdmi_dbg_sw_di_cfg(struct seq_file *s, int val) | |
635 | { | |
636 | int tmp; | |
637 | char *const en_di[] = {"no transmission", | |
638 | "single transmission", | |
639 | "once every field", | |
640 | "once every frame"}; | |
641 | ||
e9635133 | 642 | seq_putc(s, '\t'); |
7ea6e6e4 VA |
643 | tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 1)); |
644 | DBGFS_PRINT_STR("Data island 1:", en_di[tmp]); | |
645 | seq_puts(s, "\t\t\t\t\t"); | |
646 | tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 2)) >> 4; | |
647 | DBGFS_PRINT_STR("Data island 2:", en_di[tmp]); | |
648 | seq_puts(s, "\t\t\t\t\t"); | |
649 | tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 3)) >> 8; | |
650 | DBGFS_PRINT_STR("Data island 3:", en_di[tmp]); | |
651 | seq_puts(s, "\t\t\t\t\t"); | |
652 | tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 4)) >> 12; | |
653 | DBGFS_PRINT_STR("Data island 4:", en_di[tmp]); | |
654 | seq_puts(s, "\t\t\t\t\t"); | |
655 | tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 5)) >> 16; | |
656 | DBGFS_PRINT_STR("Data island 5:", en_di[tmp]); | |
657 | seq_puts(s, "\t\t\t\t\t"); | |
658 | tmp = (val & HDMI_IFRAME_CFG_DI_N(HDMI_IFRAME_MASK, 6)) >> 20; | |
659 | DBGFS_PRINT_STR("Data island 6:", en_di[tmp]); | |
660 | } | |
661 | ||
662 | static int hdmi_dbg_show(struct seq_file *s, void *data) | |
663 | { | |
664 | struct drm_info_node *node = s->private; | |
665 | struct sti_hdmi *hdmi = (struct sti_hdmi *)node->info_ent->data; | |
7ea6e6e4 VA |
666 | |
667 | seq_printf(s, "HDMI: (vaddr = 0x%p)", hdmi->regs); | |
668 | DBGFS_DUMP("\n", HDMI_CFG); | |
669 | hdmi_dbg_cfg(s, hdmi_read(hdmi, HDMI_CFG)); | |
670 | DBGFS_DUMP("", HDMI_INT_EN); | |
671 | DBGFS_DUMP("\n", HDMI_STA); | |
672 | hdmi_dbg_sta(s, hdmi_read(hdmi, HDMI_STA)); | |
673 | DBGFS_DUMP("", HDMI_ACTIVE_VID_XMIN); | |
e9635133 | 674 | seq_putc(s, '\t'); |
7ea6e6e4 VA |
675 | DBGFS_PRINT_INT("Xmin:", hdmi_read(hdmi, HDMI_ACTIVE_VID_XMIN)); |
676 | DBGFS_DUMP("", HDMI_ACTIVE_VID_XMAX); | |
e9635133 | 677 | seq_putc(s, '\t'); |
7ea6e6e4 VA |
678 | DBGFS_PRINT_INT("Xmax:", hdmi_read(hdmi, HDMI_ACTIVE_VID_XMAX)); |
679 | DBGFS_DUMP("", HDMI_ACTIVE_VID_YMIN); | |
e9635133 | 680 | seq_putc(s, '\t'); |
7ea6e6e4 VA |
681 | DBGFS_PRINT_INT("Ymin:", hdmi_read(hdmi, HDMI_ACTIVE_VID_YMIN)); |
682 | DBGFS_DUMP("", HDMI_ACTIVE_VID_YMAX); | |
e9635133 | 683 | seq_putc(s, '\t'); |
7ea6e6e4 VA |
684 | DBGFS_PRINT_INT("Ymax:", hdmi_read(hdmi, HDMI_ACTIVE_VID_YMAX)); |
685 | DBGFS_DUMP("", HDMI_SW_DI_CFG); | |
686 | hdmi_dbg_sw_di_cfg(s, hdmi_read(hdmi, HDMI_SW_DI_CFG)); | |
687 | ||
2c348e50 AP |
688 | DBGFS_DUMP("\n", HDMI_AUDIO_CFG); |
689 | DBGFS_DUMP("\n", HDMI_SPDIF_FIFO_STATUS); | |
690 | DBGFS_DUMP("\n", HDMI_AUDN); | |
691 | ||
7ea6e6e4 VA |
692 | seq_printf(s, "\n AVI Infoframe (Data Island slot N=%d):", |
693 | HDMI_IFRAME_SLOT_AVI); | |
694 | DBGFS_DUMP_DI(HDMI_SW_DI_N_HEAD_WORD, HDMI_IFRAME_SLOT_AVI); | |
695 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD0, HDMI_IFRAME_SLOT_AVI); | |
696 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD1, HDMI_IFRAME_SLOT_AVI); | |
697 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD2, HDMI_IFRAME_SLOT_AVI); | |
698 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD3, HDMI_IFRAME_SLOT_AVI); | |
699 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD4, HDMI_IFRAME_SLOT_AVI); | |
700 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD5, HDMI_IFRAME_SLOT_AVI); | |
701 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD6, HDMI_IFRAME_SLOT_AVI); | |
ecf79d15 | 702 | seq_printf(s, "\n\n AUDIO Infoframe (Data Island slot N=%d):", |
7ea6e6e4 VA |
703 | HDMI_IFRAME_SLOT_AUDIO); |
704 | DBGFS_DUMP_DI(HDMI_SW_DI_N_HEAD_WORD, HDMI_IFRAME_SLOT_AUDIO); | |
705 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD0, HDMI_IFRAME_SLOT_AUDIO); | |
706 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD1, HDMI_IFRAME_SLOT_AUDIO); | |
707 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD2, HDMI_IFRAME_SLOT_AUDIO); | |
708 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD3, HDMI_IFRAME_SLOT_AUDIO); | |
709 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD4, HDMI_IFRAME_SLOT_AUDIO); | |
710 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD5, HDMI_IFRAME_SLOT_AUDIO); | |
711 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD6, HDMI_IFRAME_SLOT_AUDIO); | |
ecf79d15 | 712 | seq_printf(s, "\n\n VENDOR SPECIFIC Infoframe (Data Island slot N=%d):", |
7ea6e6e4 VA |
713 | HDMI_IFRAME_SLOT_VENDOR); |
714 | DBGFS_DUMP_DI(HDMI_SW_DI_N_HEAD_WORD, HDMI_IFRAME_SLOT_VENDOR); | |
715 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD0, HDMI_IFRAME_SLOT_VENDOR); | |
716 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD1, HDMI_IFRAME_SLOT_VENDOR); | |
717 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD2, HDMI_IFRAME_SLOT_VENDOR); | |
718 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD3, HDMI_IFRAME_SLOT_VENDOR); | |
719 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD4, HDMI_IFRAME_SLOT_VENDOR); | |
720 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD5, HDMI_IFRAME_SLOT_VENDOR); | |
721 | DBGFS_DUMP_DI(HDMI_SW_DI_N_PKT_WORD6, HDMI_IFRAME_SLOT_VENDOR); | |
e9635133 | 722 | seq_putc(s, '\n'); |
7ea6e6e4 VA |
723 | return 0; |
724 | } | |
725 | ||
726 | static struct drm_info_list hdmi_debugfs_files[] = { | |
727 | { "hdmi", hdmi_dbg_show, 0, NULL }, | |
728 | }; | |
729 | ||
54ac836b | 730 | static void hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor) |
7ea6e6e4 VA |
731 | { |
732 | unsigned int i; | |
733 | ||
734 | for (i = 0; i < ARRAY_SIZE(hdmi_debugfs_files); i++) | |
735 | hdmi_debugfs_files[i].data = hdmi; | |
736 | ||
54ac836b WK |
737 | drm_debugfs_create_files(hdmi_debugfs_files, |
738 | ARRAY_SIZE(hdmi_debugfs_files), | |
739 | minor->debugfs_root, minor); | |
7ea6e6e4 VA |
740 | } |
741 | ||
5402626c BG |
742 | static void sti_hdmi_disable(struct drm_bridge *bridge) |
743 | { | |
744 | struct sti_hdmi *hdmi = bridge->driver_private; | |
745 | ||
746 | u32 val = hdmi_read(hdmi, HDMI_CFG); | |
747 | ||
748 | if (!hdmi->enabled) | |
749 | return; | |
750 | ||
751 | DRM_DEBUG_DRIVER("\n"); | |
752 | ||
753 | /* Disable HDMI */ | |
754 | val &= ~HDMI_CFG_DEVICE_EN; | |
755 | hdmi_write(hdmi, val, HDMI_CFG); | |
756 | ||
757 | hdmi_write(hdmi, 0xffffffff, HDMI_INT_CLR); | |
758 | ||
759 | /* Stop the phy */ | |
760 | hdmi->phy_ops->stop(hdmi); | |
761 | ||
181975a2 VA |
762 | /* Reset info frame transmission */ |
763 | hdmi_infoframe_reset(hdmi, HDMI_IFRAME_SLOT_AVI); | |
764 | hdmi_infoframe_reset(hdmi, HDMI_IFRAME_SLOT_AUDIO); | |
e42e7bd7 | 765 | hdmi_infoframe_reset(hdmi, HDMI_IFRAME_SLOT_VENDOR); |
181975a2 | 766 | |
5402626c BG |
767 | /* Set the default channel data to be a dark red */ |
768 | hdmi_write(hdmi, 0x0000, HDMI_DFLT_CHL0_DAT); | |
769 | hdmi_write(hdmi, 0x0000, HDMI_DFLT_CHL1_DAT); | |
770 | hdmi_write(hdmi, 0x0060, HDMI_DFLT_CHL2_DAT); | |
771 | ||
772 | /* Disable/unprepare hdmi clock */ | |
773 | clk_disable_unprepare(hdmi->clk_phy); | |
774 | clk_disable_unprepare(hdmi->clk_tmds); | |
775 | clk_disable_unprepare(hdmi->clk_pix); | |
776 | ||
777 | hdmi->enabled = false; | |
bca55958 BG |
778 | |
779 | cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID); | |
5402626c BG |
780 | } |
781 | ||
dd841870 AP |
782 | /** |
783 | * sti_hdmi_audio_get_non_coherent_n() - get N parameter for non-coherent | |
784 | * clocks. None-coherent clocks means that audio and TMDS clocks have not the | |
785 | * same source (drifts between clocks). In this case assumption is that CTS is | |
786 | * automatically calculated by hardware. | |
787 | * | |
788 | * @audio_fs: audio frame clock frequency in Hz | |
789 | * | |
790 | * Values computed are based on table described in HDMI specification 1.4b | |
791 | * | |
792 | * Returns n value. | |
793 | */ | |
794 | static int sti_hdmi_audio_get_non_coherent_n(unsigned int audio_fs) | |
795 | { | |
796 | unsigned int n; | |
797 | ||
798 | switch (audio_fs) { | |
799 | case 32000: | |
800 | n = 4096; | |
801 | break; | |
802 | case 44100: | |
803 | n = 6272; | |
804 | break; | |
805 | case 48000: | |
806 | n = 6144; | |
807 | break; | |
808 | case 88200: | |
809 | n = 6272 * 2; | |
810 | break; | |
811 | case 96000: | |
812 | n = 6144 * 2; | |
813 | break; | |
814 | case 176400: | |
815 | n = 6272 * 4; | |
816 | break; | |
817 | case 192000: | |
818 | n = 6144 * 4; | |
819 | break; | |
820 | default: | |
821 | /* Not pre-defined, recommended value: 128 * fs / 1000 */ | |
822 | n = (audio_fs * 128) / 1000; | |
823 | } | |
824 | ||
825 | return n; | |
826 | } | |
827 | ||
828 | static int hdmi_audio_configure(struct sti_hdmi *hdmi) | |
829 | { | |
830 | int audio_cfg, n; | |
831 | struct hdmi_audio_params *params = &hdmi->audio; | |
832 | struct hdmi_audio_infoframe *info = ¶ms->cea; | |
833 | ||
834 | DRM_DEBUG_DRIVER("\n"); | |
835 | ||
836 | if (!hdmi->enabled) | |
837 | return 0; | |
838 | ||
839 | /* update N parameter */ | |
840 | n = sti_hdmi_audio_get_non_coherent_n(params->sample_rate); | |
841 | ||
842 | DRM_DEBUG_DRIVER("Audio rate = %d Hz, TMDS clock = %d Hz, n = %d\n", | |
843 | params->sample_rate, hdmi->mode.clock * 1000, n); | |
844 | hdmi_write(hdmi, n, HDMI_AUDN); | |
845 | ||
846 | /* update HDMI registers according to configuration */ | |
847 | audio_cfg = HDMI_AUD_CFG_SPDIF_DIV_2 | HDMI_AUD_CFG_DTS_INVALID | | |
848 | HDMI_AUD_CFG_ONE_BIT_INVALID; | |
849 | ||
850 | switch (info->channels) { | |
851 | case 8: | |
852 | audio_cfg |= HDMI_AUD_CFG_CH78_VALID; | |
df561f66 | 853 | fallthrough; |
dd841870 AP |
854 | case 6: |
855 | audio_cfg |= HDMI_AUD_CFG_CH56_VALID; | |
df561f66 | 856 | fallthrough; |
dd841870 AP |
857 | case 4: |
858 | audio_cfg |= HDMI_AUD_CFG_CH34_VALID | HDMI_AUD_CFG_8CH; | |
df561f66 | 859 | fallthrough; |
dd841870 AP |
860 | case 2: |
861 | audio_cfg |= HDMI_AUD_CFG_CH12_VALID; | |
862 | break; | |
863 | default: | |
864 | DRM_ERROR("ERROR: Unsupported number of channels (%d)!\n", | |
865 | info->channels); | |
866 | return -EINVAL; | |
867 | } | |
868 | ||
869 | hdmi_write(hdmi, audio_cfg, HDMI_AUDIO_CFG); | |
870 | ||
871 | return hdmi_audio_infoframe_config(hdmi); | |
872 | } | |
873 | ||
5402626c BG |
874 | static void sti_hdmi_pre_enable(struct drm_bridge *bridge) |
875 | { | |
876 | struct sti_hdmi *hdmi = bridge->driver_private; | |
877 | ||
878 | DRM_DEBUG_DRIVER("\n"); | |
879 | ||
880 | if (hdmi->enabled) | |
881 | return; | |
882 | ||
883 | /* Prepare/enable clocks */ | |
884 | if (clk_prepare_enable(hdmi->clk_pix)) | |
885 | DRM_ERROR("Failed to prepare/enable hdmi_pix clk\n"); | |
886 | if (clk_prepare_enable(hdmi->clk_tmds)) | |
887 | DRM_ERROR("Failed to prepare/enable hdmi_tmds clk\n"); | |
888 | if (clk_prepare_enable(hdmi->clk_phy)) | |
889 | DRM_ERROR("Failed to prepare/enable hdmi_rejec_pll clk\n"); | |
890 | ||
891 | hdmi->enabled = true; | |
892 | ||
893 | /* Program hdmi serializer and start phy */ | |
894 | if (!hdmi->phy_ops->start(hdmi)) { | |
895 | DRM_ERROR("Unable to start hdmi phy\n"); | |
896 | return; | |
897 | } | |
898 | ||
899 | /* Program hdmi active area */ | |
900 | hdmi_active_area(hdmi); | |
901 | ||
902 | /* Enable working interrupts */ | |
903 | hdmi_write(hdmi, HDMI_WORKING_INT, HDMI_INT_EN); | |
904 | ||
905 | /* Program hdmi config */ | |
906 | hdmi_config(hdmi); | |
907 | ||
908 | /* Program AVI infoframe */ | |
909 | if (hdmi_avi_infoframe_config(hdmi)) | |
910 | DRM_ERROR("Unable to configure AVI infoframe\n"); | |
911 | ||
dd841870 AP |
912 | if (hdmi->audio.enabled) { |
913 | if (hdmi_audio_configure(hdmi)) | |
914 | DRM_ERROR("Unable to configure audio\n"); | |
915 | } else { | |
916 | hdmi_audio_infoframe_config(hdmi); | |
917 | } | |
cffe1e89 | 918 | |
e42e7bd7 VA |
919 | /* Program VS infoframe */ |
920 | if (hdmi_vendor_infoframe_config(hdmi)) | |
921 | DRM_ERROR("Unable to configure VS infoframe\n"); | |
922 | ||
5402626c BG |
923 | /* Sw reset */ |
924 | hdmi_swreset(hdmi); | |
925 | } | |
926 | ||
927 | static void sti_hdmi_set_mode(struct drm_bridge *bridge, | |
63f8f3ba LP |
928 | const struct drm_display_mode *mode, |
929 | const struct drm_display_mode *adjusted_mode) | |
5402626c BG |
930 | { |
931 | struct sti_hdmi *hdmi = bridge->driver_private; | |
932 | int ret; | |
933 | ||
934 | DRM_DEBUG_DRIVER("\n"); | |
935 | ||
936 | /* Copy the drm display mode in the connector local structure */ | |
937 | memcpy(&hdmi->mode, mode, sizeof(struct drm_display_mode)); | |
938 | ||
939 | /* Update clock framerate according to the selected mode */ | |
940 | ret = clk_set_rate(hdmi->clk_pix, mode->clock * 1000); | |
941 | if (ret < 0) { | |
942 | DRM_ERROR("Cannot set rate (%dHz) for hdmi_pix clk\n", | |
943 | mode->clock * 1000); | |
944 | return; | |
945 | } | |
946 | ret = clk_set_rate(hdmi->clk_phy, mode->clock * 1000); | |
947 | if (ret < 0) { | |
948 | DRM_ERROR("Cannot set rate (%dHz) for hdmi_rejection_pll clk\n", | |
949 | mode->clock * 1000); | |
950 | return; | |
951 | } | |
952 | } | |
953 | ||
954 | static void sti_hdmi_bridge_nope(struct drm_bridge *bridge) | |
955 | { | |
956 | /* do nothing */ | |
957 | } | |
958 | ||
5402626c BG |
959 | static const struct drm_bridge_funcs sti_hdmi_bridge_funcs = { |
960 | .pre_enable = sti_hdmi_pre_enable, | |
961 | .enable = sti_hdmi_bridge_nope, | |
962 | .disable = sti_hdmi_disable, | |
963 | .post_disable = sti_hdmi_bridge_nope, | |
964 | .mode_set = sti_hdmi_set_mode, | |
5402626c BG |
965 | }; |
966 | ||
967 | static int sti_hdmi_connector_get_modes(struct drm_connector *connector) | |
968 | { | |
41a14623 BG |
969 | struct sti_hdmi_connector *hdmi_connector |
970 | = to_sti_hdmi_connector(connector); | |
971 | struct sti_hdmi *hdmi = hdmi_connector->hdmi; | |
5402626c BG |
972 | struct edid *edid; |
973 | int count; | |
974 | ||
975 | DRM_DEBUG_DRIVER("\n"); | |
976 | ||
41a14623 | 977 | edid = drm_get_edid(connector, hdmi->ddc_adapt); |
5402626c BG |
978 | if (!edid) |
979 | goto fail; | |
980 | ||
97d7c576 VA |
981 | hdmi->hdmi_monitor = drm_detect_hdmi_monitor(edid); |
982 | DRM_DEBUG_KMS("%s : %dx%d cm\n", | |
983 | (hdmi->hdmi_monitor ? "hdmi monitor" : "dvi monitor"), | |
984 | edid->width_cm, edid->height_cm); | |
bca55958 | 985 | cec_notifier_set_phys_addr_from_edid(hdmi->notifier, edid); |
97d7c576 | 986 | |
5402626c | 987 | count = drm_add_edid_modes(connector, edid); |
c555f023 | 988 | drm_connector_update_edid_property(connector, edid); |
5402626c BG |
989 | |
990 | kfree(edid); | |
991 | return count; | |
992 | ||
993 | fail: | |
871bcdfe | 994 | DRM_ERROR("Can't read HDMI EDID\n"); |
5402626c BG |
995 | return 0; |
996 | } | |
997 | ||
998 | #define CLK_TOLERANCE_HZ 50 | |
999 | ||
1000 | static int sti_hdmi_connector_mode_valid(struct drm_connector *connector, | |
1001 | struct drm_display_mode *mode) | |
1002 | { | |
1003 | int target = mode->clock * 1000; | |
1004 | int target_min = target - CLK_TOLERANCE_HZ; | |
1005 | int target_max = target + CLK_TOLERANCE_HZ; | |
1006 | int result; | |
1007 | struct sti_hdmi_connector *hdmi_connector | |
1008 | = to_sti_hdmi_connector(connector); | |
1009 | struct sti_hdmi *hdmi = hdmi_connector->hdmi; | |
1010 | ||
1011 | ||
1012 | result = clk_round_rate(hdmi->clk_pix, target); | |
1013 | ||
1014 | DRM_DEBUG_DRIVER("target rate = %d => available rate = %d\n", | |
1015 | target, result); | |
1016 | ||
1017 | if ((result < target_min) || (result > target_max)) { | |
1018 | DRM_DEBUG_DRIVER("hdmi pixclk=%d not supported\n", target); | |
1019 | return MODE_BAD; | |
1020 | } | |
1021 | ||
1022 | return MODE_OK; | |
1023 | } | |
1024 | ||
c5de4853 VS |
1025 | static const |
1026 | struct drm_connector_helper_funcs sti_hdmi_connector_helper_funcs = { | |
5402626c BG |
1027 | .get_modes = sti_hdmi_connector_get_modes, |
1028 | .mode_valid = sti_hdmi_connector_mode_valid, | |
5402626c BG |
1029 | }; |
1030 | ||
1031 | /* get detection status of display device */ | |
1032 | static enum drm_connector_status | |
1033 | sti_hdmi_connector_detect(struct drm_connector *connector, bool force) | |
1034 | { | |
1035 | struct sti_hdmi_connector *hdmi_connector | |
1036 | = to_sti_hdmi_connector(connector); | |
1037 | struct sti_hdmi *hdmi = hdmi_connector->hdmi; | |
1038 | ||
1039 | DRM_DEBUG_DRIVER("\n"); | |
1040 | ||
1041 | if (hdmi->hpd) { | |
1042 | DRM_DEBUG_DRIVER("hdmi cable connected\n"); | |
1043 | return connector_status_connected; | |
1044 | } | |
1045 | ||
1046 | DRM_DEBUG_DRIVER("hdmi cable disconnected\n"); | |
bca55958 | 1047 | cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID); |
5402626c BG |
1048 | return connector_status_disconnected; |
1049 | } | |
1050 | ||
5671cefb VA |
1051 | static void sti_hdmi_connector_init_property(struct drm_device *drm_dev, |
1052 | struct drm_connector *connector) | |
1053 | { | |
1054 | struct sti_hdmi_connector *hdmi_connector | |
1055 | = to_sti_hdmi_connector(connector); | |
1056 | struct sti_hdmi *hdmi = hdmi_connector->hdmi; | |
1057 | struct drm_property *prop; | |
1058 | ||
1059 | /* colorspace property */ | |
1060 | hdmi->colorspace = DEFAULT_COLORSPACE_MODE; | |
1061 | prop = drm_property_create_enum(drm_dev, 0, "colorspace", | |
1062 | colorspace_mode_names, | |
1063 | ARRAY_SIZE(colorspace_mode_names)); | |
1064 | if (!prop) { | |
1065 | DRM_ERROR("fails to create colorspace property\n"); | |
1066 | return; | |
1067 | } | |
1068 | hdmi_connector->colorspace_property = prop; | |
1069 | drm_object_attach_property(&connector->base, prop, hdmi->colorspace); | |
1070 | } | |
1071 | ||
1072 | static int | |
1073 | sti_hdmi_connector_set_property(struct drm_connector *connector, | |
1074 | struct drm_connector_state *state, | |
1075 | struct drm_property *property, | |
1076 | uint64_t val) | |
1077 | { | |
1078 | struct sti_hdmi_connector *hdmi_connector | |
1079 | = to_sti_hdmi_connector(connector); | |
1080 | struct sti_hdmi *hdmi = hdmi_connector->hdmi; | |
1081 | ||
1082 | if (property == hdmi_connector->colorspace_property) { | |
1083 | hdmi->colorspace = val; | |
1084 | return 0; | |
1085 | } | |
1086 | ||
1087 | DRM_ERROR("failed to set hdmi connector property\n"); | |
1088 | return -EINVAL; | |
1089 | } | |
1090 | ||
1091 | static int | |
1092 | sti_hdmi_connector_get_property(struct drm_connector *connector, | |
1093 | const struct drm_connector_state *state, | |
1094 | struct drm_property *property, | |
1095 | uint64_t *val) | |
1096 | { | |
1097 | struct sti_hdmi_connector *hdmi_connector | |
1098 | = to_sti_hdmi_connector(connector); | |
1099 | struct sti_hdmi *hdmi = hdmi_connector->hdmi; | |
1100 | ||
1101 | if (property == hdmi_connector->colorspace_property) { | |
1102 | *val = hdmi->colorspace; | |
1103 | return 0; | |
1104 | } | |
1105 | ||
1106 | DRM_ERROR("failed to get hdmi connector property\n"); | |
1107 | return -EINVAL; | |
1108 | } | |
1109 | ||
83af0a48 BG |
1110 | static int sti_hdmi_late_register(struct drm_connector *connector) |
1111 | { | |
1112 | struct sti_hdmi_connector *hdmi_connector | |
1113 | = to_sti_hdmi_connector(connector); | |
1114 | struct sti_hdmi *hdmi = hdmi_connector->hdmi; | |
1115 | ||
54ac836b | 1116 | hdmi_debugfs_init(hdmi, hdmi->drm_dev->primary); |
83af0a48 BG |
1117 | |
1118 | return 0; | |
1119 | } | |
1120 | ||
c5de4853 | 1121 | static const struct drm_connector_funcs sti_hdmi_connector_funcs = { |
5402626c BG |
1122 | .fill_modes = drm_helper_probe_single_connector_modes, |
1123 | .detect = sti_hdmi_connector_detect, | |
84601dbd | 1124 | .destroy = drm_connector_cleanup, |
de4b00b0 | 1125 | .reset = drm_atomic_helper_connector_reset, |
5671cefb VA |
1126 | .atomic_set_property = sti_hdmi_connector_set_property, |
1127 | .atomic_get_property = sti_hdmi_connector_get_property, | |
de4b00b0 BG |
1128 | .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, |
1129 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, | |
83af0a48 | 1130 | .late_register = sti_hdmi_late_register, |
5402626c BG |
1131 | }; |
1132 | ||
1133 | static struct drm_encoder *sti_hdmi_find_encoder(struct drm_device *dev) | |
1134 | { | |
1135 | struct drm_encoder *encoder; | |
1136 | ||
1137 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1138 | if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS) | |
1139 | return encoder; | |
1140 | } | |
1141 | ||
1142 | return NULL; | |
1143 | } | |
1144 | ||
5dd0775e | 1145 | static void hdmi_audio_shutdown(struct device *dev, void *data) |
2c348e50 AP |
1146 | { |
1147 | struct sti_hdmi *hdmi = dev_get_drvdata(dev); | |
1148 | int audio_cfg; | |
1149 | ||
1150 | DRM_DEBUG_DRIVER("\n"); | |
1151 | ||
1152 | /* disable audio */ | |
1153 | audio_cfg = HDMI_AUD_CFG_SPDIF_DIV_2 | HDMI_AUD_CFG_DTS_INVALID | | |
1154 | HDMI_AUD_CFG_ONE_BIT_INVALID; | |
1155 | hdmi_write(hdmi, audio_cfg, HDMI_AUDIO_CFG); | |
1156 | ||
7c0ca70b | 1157 | hdmi->audio.enabled = false; |
2c348e50 AP |
1158 | hdmi_audio_infoframe_config(hdmi); |
1159 | } | |
1160 | ||
1161 | static int hdmi_audio_hw_params(struct device *dev, | |
5dd0775e | 1162 | void *data, |
2c348e50 AP |
1163 | struct hdmi_codec_daifmt *daifmt, |
1164 | struct hdmi_codec_params *params) | |
1165 | { | |
1166 | struct sti_hdmi *hdmi = dev_get_drvdata(dev); | |
1167 | int ret; | |
2c348e50 AP |
1168 | |
1169 | DRM_DEBUG_DRIVER("\n"); | |
1170 | ||
2c348e50 AP |
1171 | if ((daifmt->fmt != HDMI_I2S) || daifmt->bit_clk_inv || |
1172 | daifmt->frame_clk_inv || daifmt->bit_clk_master || | |
1173 | daifmt->frame_clk_master) { | |
1174 | dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__, | |
1175 | daifmt->bit_clk_inv, daifmt->frame_clk_inv, | |
1176 | daifmt->bit_clk_master, | |
1177 | daifmt->frame_clk_master); | |
1178 | return -EINVAL; | |
1179 | } | |
1180 | ||
dd841870 AP |
1181 | hdmi->audio.sample_width = params->sample_width; |
1182 | hdmi->audio.sample_rate = params->sample_rate; | |
1183 | hdmi->audio.cea = params->cea; | |
1184 | ||
1185 | hdmi->audio.enabled = true; | |
2c348e50 | 1186 | |
dd841870 | 1187 | ret = hdmi_audio_configure(hdmi); |
2c348e50 AP |
1188 | if (ret < 0) |
1189 | return ret; | |
1190 | ||
1191 | return 0; | |
1192 | } | |
1193 | ||
d789710f KM |
1194 | static int hdmi_audio_mute(struct device *dev, void *data, |
1195 | bool enable, int direction) | |
2c348e50 AP |
1196 | { |
1197 | struct sti_hdmi *hdmi = dev_get_drvdata(dev); | |
1198 | ||
1199 | DRM_DEBUG_DRIVER("%s\n", enable ? "enable" : "disable"); | |
1200 | ||
1201 | if (enable) | |
1202 | hdmi_write(hdmi, HDMI_SAMPLE_FLAT_ALL, HDMI_SAMPLE_FLAT_MASK); | |
1203 | else | |
1204 | hdmi_write(hdmi, HDMI_SAMPLE_FLAT_NO, HDMI_SAMPLE_FLAT_MASK); | |
1205 | ||
1206 | return 0; | |
1207 | } | |
1208 | ||
5dd0775e | 1209 | static int hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf, size_t len) |
2c348e50 AP |
1210 | { |
1211 | struct sti_hdmi *hdmi = dev_get_drvdata(dev); | |
1212 | struct drm_connector *connector = hdmi->drm_connector; | |
1213 | ||
1214 | DRM_DEBUG_DRIVER("\n"); | |
1215 | memcpy(buf, connector->eld, min(sizeof(connector->eld), len)); | |
1216 | ||
1217 | return 0; | |
1218 | } | |
1219 | ||
1220 | static const struct hdmi_codec_ops audio_codec_ops = { | |
1221 | .hw_params = hdmi_audio_hw_params, | |
1222 | .audio_shutdown = hdmi_audio_shutdown, | |
d789710f | 1223 | .mute_stream = hdmi_audio_mute, |
2c348e50 | 1224 | .get_eld = hdmi_audio_get_eld, |
d789710f | 1225 | .no_capture_mute = 1, |
2c348e50 AP |
1226 | }; |
1227 | ||
1228 | static int sti_hdmi_register_audio_driver(struct device *dev, | |
1229 | struct sti_hdmi *hdmi) | |
1230 | { | |
1231 | struct hdmi_codec_pdata codec_data = { | |
1232 | .ops = &audio_codec_ops, | |
1233 | .max_i2s_channels = 8, | |
1234 | .i2s = 1, | |
1235 | }; | |
1236 | ||
1237 | DRM_DEBUG_DRIVER("\n"); | |
1238 | ||
7c0ca70b | 1239 | hdmi->audio.enabled = false; |
2c348e50 AP |
1240 | |
1241 | hdmi->audio_pdev = platform_device_register_data( | |
1242 | dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO, | |
1243 | &codec_data, sizeof(codec_data)); | |
1244 | ||
1245 | if (IS_ERR(hdmi->audio_pdev)) | |
1246 | return PTR_ERR(hdmi->audio_pdev); | |
1247 | ||
1248 | DRM_INFO("%s Driver bound %s\n", HDMI_CODEC_DRV_NAME, dev_name(dev)); | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
5402626c BG |
1253 | static int sti_hdmi_bind(struct device *dev, struct device *master, void *data) |
1254 | { | |
1255 | struct sti_hdmi *hdmi = dev_get_drvdata(dev); | |
1256 | struct drm_device *drm_dev = data; | |
1257 | struct drm_encoder *encoder; | |
1258 | struct sti_hdmi_connector *connector; | |
536cce14 | 1259 | struct cec_connector_info conn_info; |
5402626c BG |
1260 | struct drm_connector *drm_connector; |
1261 | struct drm_bridge *bridge; | |
5402626c BG |
1262 | int err; |
1263 | ||
5402626c BG |
1264 | /* Set the drm device handle */ |
1265 | hdmi->drm_dev = drm_dev; | |
1266 | ||
1267 | encoder = sti_hdmi_find_encoder(drm_dev); | |
1268 | if (!encoder) | |
807642d7 | 1269 | return -EINVAL; |
5402626c BG |
1270 | |
1271 | connector = devm_kzalloc(dev, sizeof(*connector), GFP_KERNEL); | |
1272 | if (!connector) | |
807642d7 | 1273 | return -EINVAL; |
5402626c BG |
1274 | |
1275 | connector->hdmi = hdmi; | |
1276 | ||
1277 | bridge = devm_kzalloc(dev, sizeof(*bridge), GFP_KERNEL); | |
1278 | if (!bridge) | |
807642d7 | 1279 | return -EINVAL; |
5402626c BG |
1280 | |
1281 | bridge->driver_private = hdmi; | |
b07b90fd | 1282 | bridge->funcs = &sti_hdmi_bridge_funcs; |
a25b988f | 1283 | drm_bridge_attach(encoder, bridge, NULL, 0); |
5402626c | 1284 | |
5402626c BG |
1285 | connector->encoder = encoder; |
1286 | ||
1287 | drm_connector = (struct drm_connector *)connector; | |
1288 | ||
1289 | drm_connector->polled = DRM_CONNECTOR_POLL_HPD; | |
1290 | ||
7058e766 AP |
1291 | drm_connector_init_with_ddc(drm_dev, drm_connector, |
1292 | &sti_hdmi_connector_funcs, | |
1293 | DRM_MODE_CONNECTOR_HDMIA, | |
1294 | hdmi->ddc_adapt); | |
5402626c BG |
1295 | drm_connector_helper_add(drm_connector, |
1296 | &sti_hdmi_connector_helper_funcs); | |
1297 | ||
5671cefb VA |
1298 | /* initialise property */ |
1299 | sti_hdmi_connector_init_property(drm_dev, drm_connector); | |
1300 | ||
2c348e50 AP |
1301 | hdmi->drm_connector = drm_connector; |
1302 | ||
cde4c44d | 1303 | err = drm_connector_attach_encoder(drm_connector, encoder); |
5402626c BG |
1304 | if (err) { |
1305 | DRM_ERROR("Failed to attach a connector to a encoder\n"); | |
1306 | goto err_sysfs; | |
1307 | } | |
1308 | ||
2c348e50 AP |
1309 | err = sti_hdmi_register_audio_driver(dev, hdmi); |
1310 | if (err) { | |
1311 | DRM_ERROR("Failed to attach an audio codec\n"); | |
1312 | goto err_sysfs; | |
1313 | } | |
1314 | ||
1315 | /* Initialize audio infoframe */ | |
1316 | err = hdmi_audio_infoframe_init(&hdmi->audio.cea); | |
1317 | if (err) { | |
1318 | DRM_ERROR("Failed to init audio infoframe\n"); | |
1319 | goto err_sysfs; | |
1320 | } | |
1321 | ||
536cce14 DM |
1322 | cec_fill_conn_info_from_drm(&conn_info, drm_connector); |
1323 | hdmi->notifier = cec_notifier_conn_register(&hdmi->dev, NULL, | |
1324 | &conn_info); | |
1325 | if (!hdmi->notifier) { | |
1326 | hdmi->drm_connector = NULL; | |
1327 | return -ENOMEM; | |
1328 | } | |
1329 | ||
5402626c BG |
1330 | /* Enable default interrupts */ |
1331 | hdmi_write(hdmi, HDMI_DEFAULT_INT, HDMI_INT_EN); | |
1332 | ||
1333 | return 0; | |
1334 | ||
1335 | err_sysfs: | |
2c348e50 | 1336 | hdmi->drm_connector = NULL; |
5402626c BG |
1337 | return -EINVAL; |
1338 | } | |
1339 | ||
1340 | static void sti_hdmi_unbind(struct device *dev, | |
1341 | struct device *master, void *data) | |
1342 | { | |
536cce14 DM |
1343 | struct sti_hdmi *hdmi = dev_get_drvdata(dev); |
1344 | ||
1345 | cec_notifier_conn_unregister(hdmi->notifier); | |
5402626c BG |
1346 | } |
1347 | ||
1348 | static const struct component_ops sti_hdmi_ops = { | |
1349 | .bind = sti_hdmi_bind, | |
1350 | .unbind = sti_hdmi_unbind, | |
1351 | }; | |
1352 | ||
8e932cf0 | 1353 | static const struct of_device_id hdmi_of_match[] = { |
5402626c | 1354 | { |
5402626c BG |
1355 | .compatible = "st,stih407-hdmi", |
1356 | .data = &tx3g4c28phy_ops, | |
1357 | }, { | |
1358 | /* end node */ | |
1359 | } | |
1360 | }; | |
1361 | MODULE_DEVICE_TABLE(of, hdmi_of_match); | |
1362 | ||
1363 | static int sti_hdmi_probe(struct platform_device *pdev) | |
1364 | { | |
1365 | struct device *dev = &pdev->dev; | |
1366 | struct sti_hdmi *hdmi; | |
1367 | struct device_node *np = dev->of_node; | |
1368 | struct resource *res; | |
53bdcf5f | 1369 | struct device_node *ddc; |
5402626c BG |
1370 | int ret; |
1371 | ||
1372 | DRM_INFO("%s\n", __func__); | |
1373 | ||
1374 | hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); | |
1375 | if (!hdmi) | |
1376 | return -ENOMEM; | |
1377 | ||
53bdcf5f BG |
1378 | ddc = of_parse_phandle(pdev->dev.of_node, "ddc", 0); |
1379 | if (ddc) { | |
4d5821a7 | 1380 | hdmi->ddc_adapt = of_get_i2c_adapter_by_node(ddc); |
53bdcf5f | 1381 | of_node_put(ddc); |
4d5821a7 VZ |
1382 | if (!hdmi->ddc_adapt) |
1383 | return -EPROBE_DEFER; | |
53bdcf5f BG |
1384 | } |
1385 | ||
5402626c BG |
1386 | hdmi->dev = pdev->dev; |
1387 | ||
1388 | /* Get resources */ | |
1389 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi-reg"); | |
1390 | if (!res) { | |
1391 | DRM_ERROR("Invalid hdmi resource\n"); | |
807642d7 VZ |
1392 | ret = -ENOMEM; |
1393 | goto release_adapter; | |
5402626c | 1394 | } |
4bdc0d67 | 1395 | hdmi->regs = devm_ioremap(dev, res->start, resource_size(res)); |
807642d7 VZ |
1396 | if (!hdmi->regs) { |
1397 | ret = -ENOMEM; | |
1398 | goto release_adapter; | |
1399 | } | |
5402626c | 1400 | |
5402626c BG |
1401 | hdmi->phy_ops = (struct hdmi_phy_ops *) |
1402 | of_match_node(hdmi_of_match, np)->data; | |
1403 | ||
1404 | /* Get clock resources */ | |
1405 | hdmi->clk_pix = devm_clk_get(dev, "pix"); | |
1406 | if (IS_ERR(hdmi->clk_pix)) { | |
1407 | DRM_ERROR("Cannot get hdmi_pix clock\n"); | |
807642d7 VZ |
1408 | ret = PTR_ERR(hdmi->clk_pix); |
1409 | goto release_adapter; | |
5402626c BG |
1410 | } |
1411 | ||
1412 | hdmi->clk_tmds = devm_clk_get(dev, "tmds"); | |
1413 | if (IS_ERR(hdmi->clk_tmds)) { | |
1414 | DRM_ERROR("Cannot get hdmi_tmds clock\n"); | |
807642d7 VZ |
1415 | ret = PTR_ERR(hdmi->clk_tmds); |
1416 | goto release_adapter; | |
5402626c BG |
1417 | } |
1418 | ||
1419 | hdmi->clk_phy = devm_clk_get(dev, "phy"); | |
1420 | if (IS_ERR(hdmi->clk_phy)) { | |
1421 | DRM_ERROR("Cannot get hdmi_phy clock\n"); | |
807642d7 VZ |
1422 | ret = PTR_ERR(hdmi->clk_phy); |
1423 | goto release_adapter; | |
5402626c BG |
1424 | } |
1425 | ||
1426 | hdmi->clk_audio = devm_clk_get(dev, "audio"); | |
1427 | if (IS_ERR(hdmi->clk_audio)) { | |
1428 | DRM_ERROR("Cannot get hdmi_audio clock\n"); | |
807642d7 VZ |
1429 | ret = PTR_ERR(hdmi->clk_audio); |
1430 | goto release_adapter; | |
5402626c BG |
1431 | } |
1432 | ||
76569207 | 1433 | hdmi->hpd = readl(hdmi->regs + HDMI_STA) & HDMI_STA_HOT_PLUG; |
5402626c BG |
1434 | |
1435 | init_waitqueue_head(&hdmi->wait_event); | |
1436 | ||
1437 | hdmi->irq = platform_get_irq_byname(pdev, "irq"); | |
c83ecfa5 AY |
1438 | if (hdmi->irq < 0) { |
1439 | DRM_ERROR("Cannot get HDMI irq\n"); | |
1440 | ret = hdmi->irq; | |
1441 | goto release_adapter; | |
1442 | } | |
5402626c BG |
1443 | |
1444 | ret = devm_request_threaded_irq(dev, hdmi->irq, hdmi_irq, | |
1445 | hdmi_irq_thread, IRQF_ONESHOT, dev_name(dev), hdmi); | |
1446 | if (ret) { | |
1447 | DRM_ERROR("Failed to register HDMI interrupt\n"); | |
807642d7 | 1448 | goto release_adapter; |
5402626c BG |
1449 | } |
1450 | ||
1451 | hdmi->reset = devm_reset_control_get(dev, "hdmi"); | |
1452 | /* Take hdmi out of reset */ | |
1453 | if (!IS_ERR(hdmi->reset)) | |
1454 | reset_control_deassert(hdmi->reset); | |
1455 | ||
1456 | platform_set_drvdata(pdev, hdmi); | |
1457 | ||
1458 | return component_add(&pdev->dev, &sti_hdmi_ops); | |
807642d7 VZ |
1459 | |
1460 | release_adapter: | |
4d5821a7 | 1461 | i2c_put_adapter(hdmi->ddc_adapt); |
807642d7 VZ |
1462 | |
1463 | return ret; | |
5402626c BG |
1464 | } |
1465 | ||
1466 | static int sti_hdmi_remove(struct platform_device *pdev) | |
1467 | { | |
41a14623 BG |
1468 | struct sti_hdmi *hdmi = dev_get_drvdata(&pdev->dev); |
1469 | ||
4d5821a7 | 1470 | i2c_put_adapter(hdmi->ddc_adapt); |
2c348e50 AP |
1471 | if (hdmi->audio_pdev) |
1472 | platform_device_unregister(hdmi->audio_pdev); | |
5402626c | 1473 | component_del(&pdev->dev, &sti_hdmi_ops); |
4d5821a7 | 1474 | |
5402626c BG |
1475 | return 0; |
1476 | } | |
1477 | ||
1478 | struct platform_driver sti_hdmi_driver = { | |
1479 | .driver = { | |
1480 | .name = "sti-hdmi", | |
1481 | .owner = THIS_MODULE, | |
1482 | .of_match_table = hdmi_of_match, | |
1483 | }, | |
1484 | .probe = sti_hdmi_probe, | |
1485 | .remove = sti_hdmi_remove, | |
1486 | }; | |
1487 | ||
5402626c BG |
1488 | MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>"); |
1489 | MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver"); | |
1490 | MODULE_LICENSE("GPL"); |