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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * HDMI driver definition for TI OMAP4 Processor.
4 *
5 * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com/
6 */
7
8#ifndef _HDMI_H
9#define _HDMI_H
10
11#include <linux/delay.h>
12#include <linux/io.h>
13#include <linux/platform_device.h>
14#include <linux/hdmi.h>
15#include <sound/omap-hdmi-audio.h>
16#include <media/cec.h>
17#include <drm/drm_bridge.h>
18
19#include "omapdss.h"
20#include "dss.h"
21
22struct dss_device;
23
24/* HDMI Wrapper */
25
26#define HDMI_WP_REVISION 0x0
27#define HDMI_WP_SYSCONFIG 0x10
28#define HDMI_WP_IRQSTATUS_RAW 0x24
29#define HDMI_WP_IRQSTATUS 0x28
30#define HDMI_WP_IRQENABLE_SET 0x2C
31#define HDMI_WP_IRQENABLE_CLR 0x30
32#define HDMI_WP_IRQWAKEEN 0x34
33#define HDMI_WP_PWR_CTRL 0x40
34#define HDMI_WP_DEBOUNCE 0x44
35#define HDMI_WP_VIDEO_CFG 0x50
36#define HDMI_WP_VIDEO_SIZE 0x60
37#define HDMI_WP_VIDEO_TIMING_H 0x68
38#define HDMI_WP_VIDEO_TIMING_V 0x6C
39#define HDMI_WP_CLK 0x70
40#define HDMI_WP_AUDIO_CFG 0x80
41#define HDMI_WP_AUDIO_CFG2 0x84
42#define HDMI_WP_AUDIO_CTRL 0x88
43#define HDMI_WP_AUDIO_DATA 0x8C
44
45/* HDMI WP IRQ flags */
46#define HDMI_IRQ_CORE (1 << 0)
47#define HDMI_IRQ_OCP_TIMEOUT (1 << 4)
48#define HDMI_IRQ_AUDIO_FIFO_UNDERFLOW (1 << 8)
49#define HDMI_IRQ_AUDIO_FIFO_OVERFLOW (1 << 9)
50#define HDMI_IRQ_AUDIO_FIFO_SAMPLE_REQ (1 << 10)
51#define HDMI_IRQ_VIDEO_VSYNC (1 << 16)
52#define HDMI_IRQ_VIDEO_FRAME_DONE (1 << 17)
53#define HDMI_IRQ_PHY_LINE5V_ASSERT (1 << 24)
54#define HDMI_IRQ_LINK_CONNECT (1 << 25)
55#define HDMI_IRQ_LINK_DISCONNECT (1 << 26)
56#define HDMI_IRQ_PLL_LOCK (1 << 29)
57#define HDMI_IRQ_PLL_UNLOCK (1 << 30)
58#define HDMI_IRQ_PLL_RECAL (1 << 31)
59
60/* HDMI PLL */
61
62#define PLLCTRL_PLL_CONTROL 0x0
63#define PLLCTRL_PLL_STATUS 0x4
64#define PLLCTRL_PLL_GO 0x8
65#define PLLCTRL_CFG1 0xC
66#define PLLCTRL_CFG2 0x10
67#define PLLCTRL_CFG3 0x14
68#define PLLCTRL_SSC_CFG1 0x18
69#define PLLCTRL_SSC_CFG2 0x1C
70#define PLLCTRL_CFG4 0x20
71
72/* HDMI PHY */
73
74#define HDMI_TXPHY_TX_CTRL 0x0
75#define HDMI_TXPHY_DIGITAL_CTRL 0x4
76#define HDMI_TXPHY_POWER_CTRL 0x8
77#define HDMI_TXPHY_PAD_CFG_CTRL 0xC
78#define HDMI_TXPHY_BIST_CONTROL 0x1C
79
80enum hdmi_pll_pwr {
81 HDMI_PLLPWRCMD_ALLOFF = 0,
82 HDMI_PLLPWRCMD_PLLONLY = 1,
83 HDMI_PLLPWRCMD_BOTHON_ALLCLKS = 2,
84 HDMI_PLLPWRCMD_BOTHON_NOPHYCLK = 3
85};
86
87enum hdmi_phy_pwr {
88 HDMI_PHYPWRCMD_OFF = 0,
89 HDMI_PHYPWRCMD_LDOON = 1,
90 HDMI_PHYPWRCMD_TXON = 2
91};
92
93enum hdmi_core_hdmi_dvi {
94 HDMI_DVI = 0,
95 HDMI_HDMI = 1
96};
97
98enum hdmi_packing_mode {
99 HDMI_PACK_10b_RGB_YUV444 = 0,
100 HDMI_PACK_24b_RGB_YUV444_YUV422 = 1,
101 HDMI_PACK_20b_YUV422 = 2,
102 HDMI_PACK_ALREADYPACKED = 7
103};
104
105enum hdmi_stereo_channels {
106 HDMI_AUDIO_STEREO_NOCHANNELS = 0,
107 HDMI_AUDIO_STEREO_ONECHANNEL = 1,
108 HDMI_AUDIO_STEREO_TWOCHANNELS = 2,
109 HDMI_AUDIO_STEREO_THREECHANNELS = 3,
110 HDMI_AUDIO_STEREO_FOURCHANNELS = 4
111};
112
113enum hdmi_audio_type {
114 HDMI_AUDIO_TYPE_LPCM = 0,
115 HDMI_AUDIO_TYPE_IEC = 1
116};
117
118enum hdmi_audio_justify {
119 HDMI_AUDIO_JUSTIFY_LEFT = 0,
120 HDMI_AUDIO_JUSTIFY_RIGHT = 1
121};
122
123enum hdmi_audio_sample_order {
124 HDMI_AUDIO_SAMPLE_RIGHT_FIRST = 0,
125 HDMI_AUDIO_SAMPLE_LEFT_FIRST = 1
126};
127
128enum hdmi_audio_samples_perword {
129 HDMI_AUDIO_ONEWORD_ONESAMPLE = 0,
130 HDMI_AUDIO_ONEWORD_TWOSAMPLES = 1
131};
132
133enum hdmi_audio_sample_size_omap {
134 HDMI_AUDIO_SAMPLE_16BITS = 0,
135 HDMI_AUDIO_SAMPLE_24BITS = 1
136};
137
138enum hdmi_audio_transf_mode {
139 HDMI_AUDIO_TRANSF_DMA = 0,
140 HDMI_AUDIO_TRANSF_IRQ = 1
141};
142
143enum hdmi_audio_blk_strt_end_sig {
144 HDMI_AUDIO_BLOCK_SIG_STARTEND_ON = 0,
145 HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF = 1
146};
147
148enum hdmi_core_audio_layout {
149 HDMI_AUDIO_LAYOUT_2CH = 0,
150 HDMI_AUDIO_LAYOUT_8CH = 1,
151 HDMI_AUDIO_LAYOUT_6CH = 2
152};
153
154enum hdmi_core_cts_mode {
155 HDMI_AUDIO_CTS_MODE_HW = 0,
156 HDMI_AUDIO_CTS_MODE_SW = 1
157};
158
159enum hdmi_audio_mclk_mode {
160 HDMI_AUDIO_MCLK_128FS = 0,
161 HDMI_AUDIO_MCLK_256FS = 1,
162 HDMI_AUDIO_MCLK_384FS = 2,
163 HDMI_AUDIO_MCLK_512FS = 3,
164 HDMI_AUDIO_MCLK_768FS = 4,
165 HDMI_AUDIO_MCLK_1024FS = 5,
166 HDMI_AUDIO_MCLK_1152FS = 6,
167 HDMI_AUDIO_MCLK_192FS = 7
168};
169
170struct hdmi_video_format {
171 enum hdmi_packing_mode packing_mode;
172 u32 y_res; /* Line per panel */
173 u32 x_res; /* pixel per line */
174};
175
176struct hdmi_config {
177 struct videomode vm;
178 struct hdmi_avi_infoframe infoframe;
179 enum hdmi_core_hdmi_dvi hdmi_dvi_mode;
180};
181
182struct hdmi_audio_format {
183 enum hdmi_stereo_channels stereo_channels;
184 u8 active_chnnls_msk;
185 enum hdmi_audio_type type;
186 enum hdmi_audio_justify justification;
187 enum hdmi_audio_sample_order sample_order;
188 enum hdmi_audio_samples_perword samples_per_word;
189 enum hdmi_audio_sample_size_omap sample_size;
190 enum hdmi_audio_blk_strt_end_sig en_sig_blk_strt_end;
191};
192
193struct hdmi_audio_dma {
194 u8 transfer_size;
195 u8 block_size;
196 enum hdmi_audio_transf_mode mode;
197 u16 fifo_threshold;
198};
199
200struct hdmi_core_audio_i2s_config {
201 u8 in_length_bits;
202 u8 justification;
203 u8 sck_edge_mode;
204 u8 vbit;
205 u8 direction;
206 u8 shift;
207 u8 active_sds;
208};
209
210struct hdmi_core_audio_config {
211 struct hdmi_core_audio_i2s_config i2s_cfg;
212 struct snd_aes_iec958 *iec60958_cfg;
213 bool fs_override;
214 u32 n;
215 u32 cts;
216 u32 aud_par_busclk;
217 enum hdmi_core_audio_layout layout;
218 enum hdmi_core_cts_mode cts_mode;
219 bool use_mclk;
220 enum hdmi_audio_mclk_mode mclk_mode;
221 bool en_acr_pkt;
222 bool en_dsd_audio;
223 bool en_parallel_aud_input;
224 bool en_spdif;
225};
226
227struct hdmi_wp_data {
228 void __iomem *base;
229 phys_addr_t phys_base;
230 unsigned int version;
231};
232
233struct hdmi_pll_data {
234 struct dss_pll pll;
235
236 void __iomem *base;
237
238 struct platform_device *pdev;
239 struct hdmi_wp_data *wp;
240};
241
242struct hdmi_phy_features {
243 bool bist_ctrl;
244 bool ldo_voltage;
245 unsigned long max_phy;
246};
247
248struct hdmi_phy_data {
249 void __iomem *base;
250
251 const struct hdmi_phy_features *features;
252 u8 lane_function[4];
253 u8 lane_polarity[4];
254};
255
256struct hdmi_core_data {
257 void __iomem *base;
258 bool cts_swmode;
259 bool audio_use_mclk;
260
261 struct hdmi_wp_data *wp;
262 unsigned int core_pwr_cnt;
263 struct cec_adapter *adap;
264};
265
266static inline void hdmi_write_reg(void __iomem *base_addr, const u32 idx,
267 u32 val)
268{
269 __raw_writel(val, base_addr + idx);
270}
271
272static inline u32 hdmi_read_reg(void __iomem *base_addr, const u32 idx)
273{
274 return __raw_readl(base_addr + idx);
275}
276
277#define REG_FLD_MOD(base, idx, val, start, end) \
278 hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
279 val, start, end))
280#define REG_GET(base, idx, start, end) \
281 FLD_GET(hdmi_read_reg(base, idx), start, end)
282
283static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
284 const u32 idx, int b2, int b1, u32 val)
285{
286 u32 t = 0, v;
287 while (val != (v = REG_GET(base_addr, idx, b2, b1))) {
288 if (t++ > 10000)
289 return v;
290 udelay(1);
291 }
292 return v;
293}
294
295/* HDMI wrapper funcs */
296int hdmi_wp_video_start(struct hdmi_wp_data *wp);
297void hdmi_wp_video_stop(struct hdmi_wp_data *wp);
298void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s);
299u32 hdmi_wp_get_irqstatus(struct hdmi_wp_data *wp);
300void hdmi_wp_set_irqstatus(struct hdmi_wp_data *wp, u32 irqstatus);
301void hdmi_wp_set_irqenable(struct hdmi_wp_data *wp, u32 mask);
302void hdmi_wp_clear_irqenable(struct hdmi_wp_data *wp, u32 mask);
303int hdmi_wp_set_phy_pwr(struct hdmi_wp_data *wp, enum hdmi_phy_pwr val);
304int hdmi_wp_set_pll_pwr(struct hdmi_wp_data *wp, enum hdmi_pll_pwr val);
305void hdmi_wp_video_config_format(struct hdmi_wp_data *wp,
306 const struct hdmi_video_format *video_fmt);
307void hdmi_wp_video_config_interface(struct hdmi_wp_data *wp,
308 const struct videomode *vm);
309void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
310 const struct videomode *vm);
311void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
312 struct videomode *vm, const struct hdmi_config *param);
313int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp,
314 unsigned int version);
315phys_addr_t hdmi_wp_get_audio_dma_addr(struct hdmi_wp_data *wp);
316
317/* HDMI PLL funcs */
318void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
319int hdmi_pll_init(struct dss_device *dss, struct platform_device *pdev,
320 struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
321void hdmi_pll_uninit(struct hdmi_pll_data *hpll);
322
323/* HDMI PHY funcs */
324int hdmi_phy_configure(struct hdmi_phy_data *phy, unsigned long hfbitclk,
325 unsigned long lfbitclk);
326void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s);
327int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy,
328 unsigned int version);
329int hdmi_phy_parse_lanes(struct hdmi_phy_data *phy, const u32 *lanes);
330
331/* HDMI common funcs */
332int hdmi_parse_lanes_of(struct platform_device *pdev, struct device_node *ep,
333 struct hdmi_phy_data *phy);
334
335/* Audio funcs */
336int hdmi_compute_acr(u32 pclk, u32 sample_freq, u32 *n, u32 *cts);
337int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
338int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable);
339void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
340 struct hdmi_audio_format *aud_fmt);
341void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
342 struct hdmi_audio_dma *aud_dma);
343static inline bool hdmi_mode_has_audio(struct hdmi_config *cfg)
344{
345 return cfg->hdmi_dvi_mode == HDMI_HDMI ? true : false;
346}
347
348/* HDMI DRV data */
349struct omap_hdmi {
350 struct mutex lock;
351 struct platform_device *pdev;
352 struct dss_device *dss;
353
354 struct dss_debugfs_entry *debugfs;
355
356 struct hdmi_wp_data wp;
357 struct hdmi_pll_data pll;
358 struct hdmi_phy_data phy;
359 struct hdmi_core_data core;
360
361 struct hdmi_config cfg;
362
363 struct regulator *vdda_reg;
364
365 bool core_enabled;
366
367 struct omap_dss_device output;
368 struct drm_bridge bridge;
369
370 struct platform_device *audio_pdev;
371 void (*audio_abort_cb)(struct device *dev);
372 int wp_idlemode;
373
374 bool audio_configured;
375 struct omap_dss_audio audio_config;
376
377 /* This lock should be taken when booleans below are touched. */
378 spinlock_t audio_playing_lock;
379 bool audio_playing;
380 bool display_enabled;
381};
382
383#define drm_bridge_to_hdmi(b) container_of(b, struct omap_hdmi, bridge)
384
385#endif