]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blame - drivers/gpu/drm/omapdrm/dss/dss.h
Merge branch '4.8/omapdrm-pll' (omapdrm PLL work)
[mirror_ubuntu-hirsute-kernel.git] / drivers / gpu / drm / omapdrm / dss / dss.h
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1/*
2 * linux/drivers/video/omap2/dss/dss.h
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * Some code and ideas taken from drivers/video/omap/ driver
8 * by Imre Deak.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23#ifndef __OMAP2_DSS_H
24#define __OMAP2_DSS_H
25
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26#include <linux/interrupt.h>
27
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28#include "omapdss.h"
29
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30#ifdef pr_fmt
31#undef pr_fmt
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32#endif
33
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34#ifdef DSS_SUBSYS_NAME
35#define pr_fmt(fmt) DSS_SUBSYS_NAME ": " fmt
36#else
37#define pr_fmt(fmt) fmt
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38#endif
39
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40#define DSSDBG(format, ...) \
41 pr_debug(format, ## __VA_ARGS__)
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42
43#ifdef DSS_SUBSYS_NAME
44#define DSSERR(format, ...) \
45 printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
46 ## __VA_ARGS__)
47#else
48#define DSSERR(format, ...) \
49 printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
50#endif
51
52#ifdef DSS_SUBSYS_NAME
53#define DSSINFO(format, ...) \
54 printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
55 ## __VA_ARGS__)
56#else
57#define DSSINFO(format, ...) \
58 printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
59#endif
60
61#ifdef DSS_SUBSYS_NAME
62#define DSSWARN(format, ...) \
63 printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
64 ## __VA_ARGS__)
65#else
66#define DSSWARN(format, ...) \
67 printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
68#endif
69
70/* OMAP TRM gives bitfields as start:end, where start is the higher bit
71 number. For example 7:0 */
72#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end))
73#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
74#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
75#define FLD_MOD(orig, val, start, end) \
76 (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
77
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78enum dss_io_pad_mode {
79 DSS_IO_PAD_MODE_RESET,
80 DSS_IO_PAD_MODE_RFBI,
81 DSS_IO_PAD_MODE_BYPASS,
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82};
83
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84enum dss_hdmi_venc_clk_source_select {
85 DSS_VENC_TV_CLK = 0,
86 DSS_HDMI_M_PCLK = 1,
87};
88
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89enum dss_dsi_content_type {
90 DSS_DSI_CONTENT_DCS,
91 DSS_DSI_CONTENT_GENERIC,
92};
93
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94enum dss_writeback_channel {
95 DSS_WB_LCD1_MGR = 0,
96 DSS_WB_LCD2_MGR = 1,
97 DSS_WB_TV_MGR = 2,
98 DSS_WB_OVL0 = 3,
99 DSS_WB_OVL1 = 4,
100 DSS_WB_OVL2 = 5,
101 DSS_WB_OVL3 = 6,
102 DSS_WB_LCD3_MGR = 7,
103};
104
dc0352d1 105enum dss_clk_source {
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106 DSS_CLK_SRC_FCK = 0,
107
108 DSS_CLK_SRC_PLL1_1,
109 DSS_CLK_SRC_PLL1_2,
b5d8c757 110 DSS_CLK_SRC_PLL1_3,
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111
112 DSS_CLK_SRC_PLL2_1,
113 DSS_CLK_SRC_PLL2_2,
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114 DSS_CLK_SRC_PLL2_3,
115
116 DSS_CLK_SRC_HDMI_PLL,
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117};
118
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119enum dss_pll_id {
120 DSS_PLL_DSI1,
121 DSS_PLL_DSI2,
122 DSS_PLL_HDMI,
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123 DSS_PLL_VIDEO1,
124 DSS_PLL_VIDEO2,
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125};
126
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127struct dss_pll;
128
129#define DSS_PLL_MAX_HSDIVS 4
130
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131enum dss_pll_type {
132 DSS_PLL_TYPE_A,
133 DSS_PLL_TYPE_B,
134};
135
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136/*
137 * Type-A PLLs: clkout[]/mX[] refer to hsdiv outputs m4, m5, m6, m7.
138 * Type-B PLLs: clkout[0] refers to m2.
139 */
140struct dss_pll_clock_info {
141 /* rates that we get with dividers below */
142 unsigned long fint;
143 unsigned long clkdco;
144 unsigned long clkout[DSS_PLL_MAX_HSDIVS];
145
146 /* dividers */
147 u16 n;
148 u16 m;
149 u32 mf;
150 u16 mX[DSS_PLL_MAX_HSDIVS];
151 u16 sd;
152};
153
154struct dss_pll_ops {
155 int (*enable)(struct dss_pll *pll);
156 void (*disable)(struct dss_pll *pll);
157 int (*set_config)(struct dss_pll *pll,
158 const struct dss_pll_clock_info *cinfo);
159};
160
161struct dss_pll_hw {
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162 enum dss_pll_type type;
163
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164 unsigned n_max;
165 unsigned m_min;
166 unsigned m_max;
167 unsigned mX_max;
168
169 unsigned long fint_min, fint_max;
170 unsigned long clkdco_min, clkdco_low, clkdco_max;
171
172 u8 n_msb, n_lsb;
173 u8 m_msb, m_lsb;
174 u8 mX_msb[DSS_PLL_MAX_HSDIVS], mX_lsb[DSS_PLL_MAX_HSDIVS];
175
176 bool has_stopmode;
177 bool has_freqsel;
178 bool has_selfreqdco;
179 bool has_refsel;
180};
181
182struct dss_pll {
183 const char *name;
64e22ffd 184 enum dss_pll_id id;
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185
186 struct clk *clkin;
187 struct regulator *regulator;
188
189 void __iomem *base;
190
191 const struct dss_pll_hw *hw;
192
193 const struct dss_pll_ops *ops;
194
195 struct dss_pll_clock_info cinfo;
196};
197
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198struct dispc_clock_info {
199 /* rates that we get with dividers below */
200 unsigned long lck;
201 unsigned long pck;
202
203 /* dividers */
204 u16 lck_div;
205 u16 pck_div;
206};
207
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208struct dss_lcd_mgr_config {
209 enum dss_io_pad_mode io_pad_mode;
210
211 bool stallmode;
212 bool fifohandcheck;
213
214 struct dispc_clock_info clock_info;
215
216 int video_port_width;
217
218 int lcden_sig_polarity;
219};
220
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221struct seq_file;
222struct platform_device;
223
224/* core */
8f46efad 225struct platform_device *dss_get_core_pdev(void);
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226int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask);
227void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask);
a8081d31 228int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
e40402cf 229int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *));
559d6701 230
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231static inline bool dss_mgr_is_lcd(enum omap_channel id)
232{
233 if (id == OMAP_DSS_CHANNEL_LCD || id == OMAP_DSS_CHANNEL_LCD2 ||
234 id == OMAP_DSS_CHANNEL_LCD3)
235 return true;
236 else
237 return false;
238}
239
559d6701 240/* DSS */
6e7e8f06 241int dss_init_platform_driver(void) __init;
96c401bc 242void dss_uninit_platform_driver(void);
559d6701 243
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244int dss_runtime_get(void);
245void dss_runtime_put(void);
246
5aaee69d 247unsigned long dss_get_dispc_clk_rate(void);
064c2a47 248int dss_dpi_select_source(int port, enum omap_channel channel);
7ed024aa 249void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
4a61e267 250enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
407bd564 251const char *dss_get_clk_source_name(enum dss_clk_source clk_src);
8b9cb3a8 252void dss_dump_clocks(struct seq_file *s);
559d6701 253
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254/* DSS VIDEO PLL */
255struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
256 struct regulator *regulator);
257void dss_video_pll_uninit(struct dss_pll *pll);
258
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259/* dss-of */
260struct device_node *dss_of_port_get_parent_device(struct device_node *port);
261u32 dss_of_port_get_port_number(struct device_node *port);
262
1b3bcb33 263#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
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264void dss_debug_dump_clocks(struct seq_file *s);
265#endif
559d6701 266
be40eecf 267void dss_ctrl_pll_enable(enum dss_pll_id pll_id, bool enable);
be40eecf 268
889b4fd7 269void dss_sdi_init(int datapairs);
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270int dss_sdi_enable(void);
271void dss_sdi_disable(void);
272
5a8b572d 273void dss_select_dsi_clk_source(int dsi_module,
dc0352d1 274 enum dss_clk_source clk_src);
ea75159e 275void dss_select_lcd_clk_source(enum omap_channel channel,
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276 enum dss_clk_source clk_src);
277enum dss_clk_source dss_get_dispc_clk_source(void);
278enum dss_clk_source dss_get_dsi_clk_source(int dsi_module);
279enum dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel);
2f18c4d8 280
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281void dss_set_venc_output(enum omap_dss_venc_type type);
282void dss_set_dac_pwrdn_bgz(bool enable);
283
d0f58bd3 284int dss_set_fck_rate(unsigned long rate);
559d6701 285
d0f58bd3 286typedef bool (*dss_div_calc_func)(unsigned long fck, void *data);
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287bool dss_div_calc(unsigned long pck, unsigned long fck_min,
288 dss_div_calc_func func, void *data);
43417823 289
559d6701 290/* SDI */
6e7e8f06 291int sdi_init_platform_driver(void) __init;
ede92695 292void sdi_uninit_platform_driver(void);
559d6701 293
387ce9f2 294#ifdef CONFIG_OMAP2_DSS_SDI
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295int sdi_init_port(struct platform_device *pdev, struct device_node *port);
296void sdi_uninit_port(struct device_node *port);
387ce9f2 297#else
ede92695 298static inline int sdi_init_port(struct platform_device *pdev,
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299 struct device_node *port)
300{
301 return 0;
302}
ede92695 303static inline void sdi_uninit_port(struct device_node *port)
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304{
305}
306#endif
2ecef246 307
559d6701 308/* DSI */
989c79a8 309
368a148e 310#ifdef CONFIG_OMAP2_DSS_DSI
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311
312struct dentry;
313struct file_operations;
314
6e7e8f06 315int dsi_init_platform_driver(void) __init;
ede92695 316void dsi_uninit_platform_driver(void);
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317
318void dsi_dump_clocks(struct seq_file *s);
559d6701 319
559d6701 320void dsi_irq_handler(void);
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321u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt);
322
368a148e 323#else
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324static inline u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
325{
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326 WARN(1, "%s: DSI not compiled in, returning pixel_size as 0\n",
327 __func__);
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328 return 0;
329}
368a148e 330#endif
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331
332/* DPI */
6e7e8f06 333int dpi_init_platform_driver(void) __init;
ede92695 334void dpi_uninit_platform_driver(void);
559d6701 335
387ce9f2 336#ifdef CONFIG_OMAP2_DSS_DPI
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337int dpi_init_port(struct platform_device *pdev, struct device_node *port);
338void dpi_uninit_port(struct device_node *port);
387ce9f2 339#else
ede92695 340static inline int dpi_init_port(struct platform_device *pdev,
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341 struct device_node *port)
342{
343 return 0;
344}
ede92695 345static inline void dpi_uninit_port(struct device_node *port)
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346{
347}
348#endif
2ecef246 349
559d6701 350/* DISPC */
6e7e8f06 351int dispc_init_platform_driver(void) __init;
ede92695 352void dispc_uninit_platform_driver(void);
559d6701 353void dispc_dump_clocks(struct seq_file *s);
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354
355void dispc_enable_sidle(void);
356void dispc_disable_sidle(void);
357
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358void dispc_lcd_enable_signal(bool enable);
359void dispc_pck_free_enable(bool enable);
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360void dispc_enable_fifomerge(bool enable);
361void dispc_enable_gamma_table(bool enable);
cd295aeb 362
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363typedef bool (*dispc_div_calc_func)(int lckd, int pckd, unsigned long lck,
364 unsigned long pck, void *data);
365bool dispc_div_calc(unsigned long dispc,
366 unsigned long pck_min, unsigned long pck_max,
367 dispc_div_calc_func func, void *data);
368
8f366162 369bool dispc_mgr_timings_ok(enum omap_channel channel,
b917fa39 370 const struct omap_video_timings *timings);
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371int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
372 struct dispc_clock_info *cinfo);
373
374
6f04e1bf 375void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
83fa2f2e 376void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
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377 u32 *fifo_low, u32 *fifo_high, bool use_fifomerge,
378 bool manual_update);
348be69d 379
f0d08f89 380void dispc_mgr_set_clock_div(enum omap_channel channel,
a8f3fcd1 381 const struct dispc_clock_info *cinfo);
26d9dd0d 382int dispc_mgr_get_clock_div(enum omap_channel channel,
ff1b2cde 383 struct dispc_clock_info *cinfo);
5391e87d 384void dispc_set_tv_pclk(unsigned long pclk);
559d6701 385
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AT
386u32 dispc_wb_get_framedone_irq(void);
387bool dispc_wb_go_busy(void);
388void dispc_wb_go(void);
389void dispc_wb_enable(bool enable);
390bool dispc_wb_is_enabled(void);
d9ac773c 391void dispc_wb_set_channel_in(enum dss_writeback_channel channel);
749feffa 392int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
9e4a0fc7 393 bool mem_to_mem, const struct omap_video_timings *timings);
d9ac773c 394
559d6701 395/* VENC */
6e7e8f06 396int venc_init_platform_driver(void) __init;
ede92695 397void venc_uninit_platform_driver(void);
559d6701 398
c3198a5e 399/* HDMI */
ef26958a 400int hdmi4_init_platform_driver(void) __init;
ede92695 401void hdmi4_uninit_platform_driver(void);
c3198a5e 402
f5bab222 403int hdmi5_init_platform_driver(void) __init;
ede92695 404void hdmi5_uninit_platform_driver(void);
f5bab222 405
559d6701 406/* RFBI */
6e7e8f06 407int rfbi_init_platform_driver(void) __init;
ede92695 408void rfbi_uninit_platform_driver(void);
559d6701 409
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410
411#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
412static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
413{
414 int b;
415 for (b = 0; b < 32; ++b) {
416 if (irqstatus & (1 << b))
417 irq_arr[b]++;
418 }
419}
420#endif
421
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422/* PLL */
423typedef bool (*dss_pll_calc_func)(int n, int m, unsigned long fint,
424 unsigned long clkdco, void *data);
425typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc,
426 void *data);
427
428int dss_pll_register(struct dss_pll *pll);
429void dss_pll_unregister(struct dss_pll *pll);
430struct dss_pll *dss_pll_find(const char *name);
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431struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src);
432unsigned dss_pll_get_clkout_idx_for_src(enum dss_clk_source src);
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433int dss_pll_enable(struct dss_pll *pll);
434void dss_pll_disable(struct dss_pll *pll);
435int dss_pll_set_config(struct dss_pll *pll,
436 const struct dss_pll_clock_info *cinfo);
437
cd0715ff 438bool dss_pll_hsdiv_calc_a(const struct dss_pll *pll, unsigned long clkdco,
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439 unsigned long out_min, unsigned long out_max,
440 dss_hsdiv_calc_func func, void *data);
cd0715ff 441bool dss_pll_calc_a(const struct dss_pll *pll, unsigned long clkin,
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442 unsigned long pll_min, unsigned long pll_max,
443 dss_pll_calc_func func, void *data);
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444
445bool dss_pll_calc_b(const struct dss_pll *pll, unsigned long clkin,
c107751d 446 unsigned long target_clkout, struct dss_pll_clock_info *cinfo);
c17dc0e3 447
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448int dss_pll_write_config_type_a(struct dss_pll *pll,
449 const struct dss_pll_clock_info *cinfo);
450int dss_pll_write_config_type_b(struct dss_pll *pll,
451 const struct dss_pll_clock_info *cinfo);
eb30199b 452int dss_pll_wait_reset_done(struct dss_pll *pll);
0a20170a 453
559d6701 454#endif