summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/omapdrm/dss/hdmi.h
blob: 63e71154586591b4b213ce2c43f60c5b3b80668d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
/*
 * HDMI driver definition for TI OMAP4 Processor.
 *
 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _HDMI_H
#define _HDMI_H

#include <linux/delay.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/hdmi.h>
#include <sound/omap-hdmi-audio.h>

#include "omapdss.h"
#include "dss.h"

/* HDMI Wrapper */

#define HDMI_WP_REVISION			0x0
#define HDMI_WP_SYSCONFIG			0x10
#define HDMI_WP_IRQSTATUS_RAW			0x24
#define HDMI_WP_IRQSTATUS			0x28
#define HDMI_WP_IRQENABLE_SET			0x2C
#define HDMI_WP_IRQENABLE_CLR			0x30
#define HDMI_WP_IRQWAKEEN			0x34
#define HDMI_WP_PWR_CTRL			0x40
#define HDMI_WP_DEBOUNCE			0x44
#define HDMI_WP_VIDEO_CFG			0x50
#define HDMI_WP_VIDEO_SIZE			0x60
#define HDMI_WP_VIDEO_TIMING_H			0x68
#define HDMI_WP_VIDEO_TIMING_V			0x6C
#define HDMI_WP_CLK				0x70
#define HDMI_WP_AUDIO_CFG			0x80
#define HDMI_WP_AUDIO_CFG2			0x84
#define HDMI_WP_AUDIO_CTRL			0x88
#define HDMI_WP_AUDIO_DATA			0x8C

/* HDMI WP IRQ flags */
#define HDMI_IRQ_CORE				(1 << 0)
#define HDMI_IRQ_OCP_TIMEOUT			(1 << 4)
#define HDMI_IRQ_AUDIO_FIFO_UNDERFLOW		(1 << 8)
#define HDMI_IRQ_AUDIO_FIFO_OVERFLOW		(1 << 9)
#define HDMI_IRQ_AUDIO_FIFO_SAMPLE_REQ		(1 << 10)
#define HDMI_IRQ_VIDEO_VSYNC			(1 << 16)
#define HDMI_IRQ_VIDEO_FRAME_DONE		(1 << 17)
#define HDMI_IRQ_PHY_LINE5V_ASSERT		(1 << 24)
#define HDMI_IRQ_LINK_CONNECT			(1 << 25)
#define HDMI_IRQ_LINK_DISCONNECT		(1 << 26)
#define HDMI_IRQ_PLL_LOCK			(1 << 29)
#define HDMI_IRQ_PLL_UNLOCK			(1 << 30)
#define HDMI_IRQ_PLL_RECAL			(1 << 31)

/* HDMI PLL */

#define PLLCTRL_PLL_CONTROL			0x0
#define PLLCTRL_PLL_STATUS			0x4
#define PLLCTRL_PLL_GO				0x8
#define PLLCTRL_CFG1				0xC
#define PLLCTRL_CFG2				0x10
#define PLLCTRL_CFG3				0x14
#define PLLCTRL_SSC_CFG1			0x18
#define PLLCTRL_SSC_CFG2			0x1C
#define PLLCTRL_CFG4				0x20

/* HDMI PHY */

#define HDMI_TXPHY_TX_CTRL			0x0
#define HDMI_TXPHY_DIGITAL_CTRL			0x4
#define HDMI_TXPHY_POWER_CTRL			0x8
#define HDMI_TXPHY_PAD_CFG_CTRL			0xC
#define HDMI_TXPHY_BIST_CONTROL			0x1C

enum hdmi_pll_pwr {
	HDMI_PLLPWRCMD_ALLOFF = 0,
	HDMI_PLLPWRCMD_PLLONLY = 1,
	HDMI_PLLPWRCMD_BOTHON_ALLCLKS = 2,
	HDMI_PLLPWRCMD_BOTHON_NOPHYCLK = 3
};

enum hdmi_phy_pwr {
	HDMI_PHYPWRCMD_OFF = 0,
	HDMI_PHYPWRCMD_LDOON = 1,
	HDMI_PHYPWRCMD_TXON = 2
};

enum hdmi_core_hdmi_dvi {
	HDMI_DVI = 0,
	HDMI_HDMI = 1
};

enum hdmi_packing_mode {
	HDMI_PACK_10b_RGB_YUV444 = 0,
	HDMI_PACK_24b_RGB_YUV444_YUV422 = 1,
	HDMI_PACK_20b_YUV422 = 2,
	HDMI_PACK_ALREADYPACKED = 7
};

enum hdmi_stereo_channels {
	HDMI_AUDIO_STEREO_NOCHANNELS = 0,
	HDMI_AUDIO_STEREO_ONECHANNEL = 1,
	HDMI_AUDIO_STEREO_TWOCHANNELS = 2,
	HDMI_AUDIO_STEREO_THREECHANNELS = 3,
	HDMI_AUDIO_STEREO_FOURCHANNELS = 4
};

enum hdmi_audio_type {
	HDMI_AUDIO_TYPE_LPCM = 0,
	HDMI_AUDIO_TYPE_IEC = 1
};

enum hdmi_audio_justify {
	HDMI_AUDIO_JUSTIFY_LEFT = 0,
	HDMI_AUDIO_JUSTIFY_RIGHT = 1
};

enum hdmi_audio_sample_order {
	HDMI_AUDIO_SAMPLE_RIGHT_FIRST = 0,
	HDMI_AUDIO_SAMPLE_LEFT_FIRST = 1
};

enum hdmi_audio_samples_perword {
	HDMI_AUDIO_ONEWORD_ONESAMPLE = 0,
	HDMI_AUDIO_ONEWORD_TWOSAMPLES = 1
};

enum hdmi_audio_sample_size_omap {
	HDMI_AUDIO_SAMPLE_16BITS = 0,
	HDMI_AUDIO_SAMPLE_24BITS = 1
};

enum hdmi_audio_transf_mode {
	HDMI_AUDIO_TRANSF_DMA = 0,
	HDMI_AUDIO_TRANSF_IRQ = 1
};

enum hdmi_audio_blk_strt_end_sig {
	HDMI_AUDIO_BLOCK_SIG_STARTEND_ON = 0,
	HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF = 1
};

enum hdmi_core_audio_layout {
	HDMI_AUDIO_LAYOUT_2CH = 0,
	HDMI_AUDIO_LAYOUT_8CH = 1,
	HDMI_AUDIO_LAYOUT_6CH = 2
};

enum hdmi_core_cts_mode {
	HDMI_AUDIO_CTS_MODE_HW = 0,
	HDMI_AUDIO_CTS_MODE_SW = 1
};

enum hdmi_audio_mclk_mode {
	HDMI_AUDIO_MCLK_128FS = 0,
	HDMI_AUDIO_MCLK_256FS = 1,
	HDMI_AUDIO_MCLK_384FS = 2,
	HDMI_AUDIO_MCLK_512FS = 3,
	HDMI_AUDIO_MCLK_768FS = 4,
	HDMI_AUDIO_MCLK_1024FS = 5,
	HDMI_AUDIO_MCLK_1152FS = 6,
	HDMI_AUDIO_MCLK_192FS = 7
};

struct hdmi_video_format {
	enum hdmi_packing_mode	packing_mode;
	u32			y_res;	/* Line per panel */
	u32			x_res;	/* pixel per line */
};

struct hdmi_config {
	struct omap_video_timings timings;
	struct hdmi_avi_infoframe infoframe;
	enum hdmi_core_hdmi_dvi hdmi_dvi_mode;
};

struct hdmi_audio_format {
	enum hdmi_stereo_channels		stereo_channels;
	u8					active_chnnls_msk;
	enum hdmi_audio_type			type;
	enum hdmi_audio_justify			justification;
	enum hdmi_audio_sample_order		sample_order;
	enum hdmi_audio_samples_perword		samples_per_word;
	enum hdmi_audio_sample_size_omap	sample_size;
	enum hdmi_audio_blk_strt_end_sig	en_sig_blk_strt_end;
};

struct hdmi_audio_dma {
	u8				transfer_size;
	u8				block_size;
	enum hdmi_audio_transf_mode	mode;
	u16				fifo_threshold;
};

struct hdmi_core_audio_i2s_config {
	u8 in_length_bits;
	u8 justification;
	u8 sck_edge_mode;
	u8 vbit;
	u8 direction;
	u8 shift;
	u8 active_sds;
};

struct hdmi_core_audio_config {
	struct hdmi_core_audio_i2s_config	i2s_cfg;
	struct snd_aes_iec958			*iec60958_cfg;
	bool					fs_override;
	u32					n;
	u32					cts;
	u32					aud_par_busclk;
	enum hdmi_core_audio_layout		layout;
	enum hdmi_core_cts_mode			cts_mode;
	bool					use_mclk;
	enum hdmi_audio_mclk_mode		mclk_mode;
	bool					en_acr_pkt;
	bool					en_dsd_audio;
	bool					en_parallel_aud_input;
	bool					en_spdif;
};

struct hdmi_wp_data {
	void __iomem *base;
	phys_addr_t phys_base;
};

struct hdmi_pll_data {
	struct dss_pll pll;

	void __iomem *base;

	struct platform_device *pdev;
	struct hdmi_wp_data *wp;
};

struct hdmi_phy_data {
	void __iomem *base;

	u8 lane_function[4];
	u8 lane_polarity[4];
};

struct hdmi_core_data {
	void __iomem *base;
};

static inline void hdmi_write_reg(void __iomem *base_addr, const u32 idx,
		u32 val)
{
	__raw_writel(val, base_addr + idx);
}

static inline u32 hdmi_read_reg(void __iomem *base_addr, const u32 idx)
{
	return __raw_readl(base_addr + idx);
}

#define REG_FLD_MOD(base, idx, val, start, end) \
	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
							val, start, end))
#define REG_GET(base, idx, start, end) \
	FLD_GET(hdmi_read_reg(base, idx), start, end)

static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
		const u32 idx, int b2, int b1, u32 val)
{
	u32 t = 0, v;
	while (val != (v = REG_GET(base_addr, idx, b2, b1))) {
		if (t++ > 10000)
			return v;
		udelay(1);
	}
	return v;
}

/* HDMI wrapper funcs */
int hdmi_wp_video_start(struct hdmi_wp_data *wp);
void hdmi_wp_video_stop(struct hdmi_wp_data *wp);
void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s);
u32 hdmi_wp_get_irqstatus(struct hdmi_wp_data *wp);
void hdmi_wp_set_irqstatus(struct hdmi_wp_data *wp, u32 irqstatus);
void hdmi_wp_set_irqenable(struct hdmi_wp_data *wp, u32 mask);
void hdmi_wp_clear_irqenable(struct hdmi_wp_data *wp, u32 mask);
int hdmi_wp_set_phy_pwr(struct hdmi_wp_data *wp, enum hdmi_phy_pwr val);
int hdmi_wp_set_pll_pwr(struct hdmi_wp_data *wp, enum hdmi_pll_pwr val);
void hdmi_wp_video_config_format(struct hdmi_wp_data *wp,
		struct hdmi_video_format *video_fmt);
void hdmi_wp_video_config_interface(struct hdmi_wp_data *wp,
		struct omap_video_timings *timings);
void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
		struct omap_video_timings *timings);
void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
		struct omap_video_timings *timings, struct hdmi_config *param);
int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp);
phys_addr_t hdmi_wp_get_audio_dma_addr(struct hdmi_wp_data *wp);

/* HDMI PLL funcs */
void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll,
	struct hdmi_wp_data *wp);
void hdmi_pll_uninit(struct hdmi_pll_data *hpll);

/* HDMI PHY funcs */
int hdmi_phy_configure(struct hdmi_phy_data *phy, unsigned long hfbitclk,
	unsigned long lfbitclk);
void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s);
int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy);
int hdmi_phy_parse_lanes(struct hdmi_phy_data *phy, const u32 *lanes);

/* HDMI common funcs */
int hdmi_parse_lanes_of(struct platform_device *pdev, struct device_node *ep,
	struct hdmi_phy_data *phy);

/* Audio funcs */
int hdmi_compute_acr(u32 pclk, u32 sample_freq, u32 *n, u32 *cts);
int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable);
void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
		struct hdmi_audio_format *aud_fmt);
void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
		struct hdmi_audio_dma *aud_dma);
static inline bool hdmi_mode_has_audio(struct hdmi_config *cfg)
{
	return cfg->hdmi_dvi_mode == HDMI_HDMI ? true : false;
}

/* HDMI DRV data */
struct omap_hdmi {
	struct mutex lock;
	struct platform_device *pdev;

	struct hdmi_wp_data	wp;
	struct hdmi_pll_data	pll;
	struct hdmi_phy_data	phy;
	struct hdmi_core_data	core;

	struct hdmi_config cfg;

	struct regulator *vdda_reg;

	bool core_enabled;

	struct omap_dss_device output;

	struct platform_device *audio_pdev;
	void (*audio_abort_cb)(struct device *dev);
	int wp_idlemode;

	bool audio_configured;
	struct omap_dss_audio audio_config;

	/* This lock should be taken when booleans bellow are touched. */
	spinlock_t audio_playing_lock;
	bool audio_playing;
	bool display_enabled;
};

#endif