dss.h 11.5 KB
Newer Older
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
/*
 * linux/drivers/video/omap2/dss/dss.h
 *
 * Copyright (C) 2009 Nokia Corporation
 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
 *
 * Some code and ideas taken from drivers/video/omap/ driver
 * by Imre Deak.
 *
 * 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 __OMAP2_DSS_H
#define __OMAP2_DSS_H

26 27
#include <linux/interrupt.h>

28 29
#include "omapdss.h"

30 31
#ifdef pr_fmt
#undef pr_fmt
32 33
#endif

34 35 36 37
#ifdef DSS_SUBSYS_NAME
#define pr_fmt(fmt) DSS_SUBSYS_NAME ": " fmt
#else
#define pr_fmt(fmt) fmt
38 39
#endif

40 41
#define DSSDBG(format, ...) \
	pr_debug(format, ## __VA_ARGS__)
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

#ifdef DSS_SUBSYS_NAME
#define DSSERR(format, ...) \
	printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
	## __VA_ARGS__)
#else
#define DSSERR(format, ...) \
	printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
#endif

#ifdef DSS_SUBSYS_NAME
#define DSSINFO(format, ...) \
	printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
	## __VA_ARGS__)
#else
#define DSSINFO(format, ...) \
	printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
#endif

#ifdef DSS_SUBSYS_NAME
#define DSSWARN(format, ...) \
	printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
	## __VA_ARGS__)
#else
#define DSSWARN(format, ...) \
	printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
#endif

/* OMAP TRM gives bitfields as start:end, where start is the higher bit
   number. For example 7:0 */
#define FLD_MASK(start, end)	(((1 << ((start) - (end) + 1)) - 1) << (end))
#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
#define FLD_MOD(orig, val, start, end) \
	(((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))

78 79 80 81
enum dss_io_pad_mode {
	DSS_IO_PAD_MODE_RESET,
	DSS_IO_PAD_MODE_RFBI,
	DSS_IO_PAD_MODE_BYPASS,
82 83
};

84 85 86 87 88
enum dss_hdmi_venc_clk_source_select {
	DSS_VENC_TV_CLK = 0,
	DSS_HDMI_M_PCLK = 1,
};

89 90 91 92 93
enum dss_dsi_content_type {
	DSS_DSI_CONTENT_DCS,
	DSS_DSI_CONTENT_GENERIC,
};

94 95 96 97 98 99 100 101 102 103 104
enum dss_writeback_channel {
	DSS_WB_LCD1_MGR =	0,
	DSS_WB_LCD2_MGR =	1,
	DSS_WB_TV_MGR =		2,
	DSS_WB_OVL0 =		3,
	DSS_WB_OVL1 =		4,
	DSS_WB_OVL2 =		5,
	DSS_WB_OVL3 =		6,
	DSS_WB_LCD3_MGR =	7,
};

105
enum dss_clk_source {
106 107 108 109
	DSS_CLK_SRC_FCK = 0,

	DSS_CLK_SRC_PLL1_1,
	DSS_CLK_SRC_PLL1_2,
110
	DSS_CLK_SRC_PLL1_3,
111 112 113

	DSS_CLK_SRC_PLL2_1,
	DSS_CLK_SRC_PLL2_2,
114 115 116
	DSS_CLK_SRC_PLL2_3,

	DSS_CLK_SRC_HDMI_PLL,
117 118
};

T
Tomi Valkeinen 已提交
119 120 121 122
enum dss_pll_id {
	DSS_PLL_DSI1,
	DSS_PLL_DSI2,
	DSS_PLL_HDMI,
123 124
	DSS_PLL_VIDEO1,
	DSS_PLL_VIDEO2,
T
Tomi Valkeinen 已提交
125 126
};

T
Tomi Valkeinen 已提交
127 128 129 130
struct dss_pll;

#define DSS_PLL_MAX_HSDIVS 4

131 132 133 134 135
enum dss_pll_type {
	DSS_PLL_TYPE_A,
	DSS_PLL_TYPE_B,
};

T
Tomi Valkeinen 已提交
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
/*
 * Type-A PLLs: clkout[]/mX[] refer to hsdiv outputs m4, m5, m6, m7.
 * Type-B PLLs: clkout[0] refers to m2.
 */
struct dss_pll_clock_info {
	/* rates that we get with dividers below */
	unsigned long fint;
	unsigned long clkdco;
	unsigned long clkout[DSS_PLL_MAX_HSDIVS];

	/* dividers */
	u16 n;
	u16 m;
	u32 mf;
	u16 mX[DSS_PLL_MAX_HSDIVS];
	u16 sd;
};

struct dss_pll_ops {
	int (*enable)(struct dss_pll *pll);
	void (*disable)(struct dss_pll *pll);
	int (*set_config)(struct dss_pll *pll,
		const struct dss_pll_clock_info *cinfo);
};

struct dss_pll_hw {
162 163
	enum dss_pll_type type;

T
Tomi Valkeinen 已提交
164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183
	unsigned n_max;
	unsigned m_min;
	unsigned m_max;
	unsigned mX_max;

	unsigned long fint_min, fint_max;
	unsigned long clkdco_min, clkdco_low, clkdco_max;

	u8 n_msb, n_lsb;
	u8 m_msb, m_lsb;
	u8 mX_msb[DSS_PLL_MAX_HSDIVS], mX_lsb[DSS_PLL_MAX_HSDIVS];

	bool has_stopmode;
	bool has_freqsel;
	bool has_selfreqdco;
	bool has_refsel;
};

struct dss_pll {
	const char *name;
T
Tomi Valkeinen 已提交
184
	enum dss_pll_id id;
T
Tomi Valkeinen 已提交
185 186 187 188 189 190 191 192 193 194 195 196 197

	struct clk *clkin;
	struct regulator *regulator;

	void __iomem *base;

	const struct dss_pll_hw *hw;

	const struct dss_pll_ops *ops;

	struct dss_pll_clock_info cinfo;
};

198 199 200 201 202 203 204 205 206 207
struct dispc_clock_info {
	/* rates that we get with dividers below */
	unsigned long lck;
	unsigned long pck;

	/* dividers */
	u16 lck_div;
	u16 pck_div;
};

208 209 210 211 212 213 214 215 216 217 218 219 220
struct dss_lcd_mgr_config {
	enum dss_io_pad_mode io_pad_mode;

	bool stallmode;
	bool fifohandcheck;

	struct dispc_clock_info clock_info;

	int video_port_width;

	int lcden_sig_polarity;
};

221 222 223 224
struct seq_file;
struct platform_device;

/* core */
T
Tomi Valkeinen 已提交
225
struct platform_device *dss_get_core_pdev(void);
226 227
int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask);
void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask);
228
int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
229
int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *));
230

231 232 233 234 235 236 237 238 239
static inline bool dss_mgr_is_lcd(enum omap_channel id)
{
	if (id == OMAP_DSS_CHANNEL_LCD || id == OMAP_DSS_CHANNEL_LCD2 ||
			id == OMAP_DSS_CHANNEL_LCD3)
		return true;
	else
		return false;
}

240
/* DSS */
T
Tomi Valkeinen 已提交
241
int dss_init_platform_driver(void) __init;
242
void dss_uninit_platform_driver(void);
243

244 245 246
int dss_runtime_get(void);
void dss_runtime_put(void);

247
unsigned long dss_get_dispc_clk_rate(void);
248
int dss_dpi_select_source(int port, enum omap_channel channel);
249
void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
250
enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
251
const char *dss_get_clk_source_name(enum dss_clk_source clk_src);
252
void dss_dump_clocks(struct seq_file *s);
253

254 255 256 257 258
/* DSS VIDEO PLL */
struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
	struct regulator *regulator);
void dss_video_pll_uninit(struct dss_pll *pll);

259 260 261 262
/* dss-of */
struct device_node *dss_of_port_get_parent_device(struct device_node *port);
u32 dss_of_port_get_port_number(struct device_node *port);

263
#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
264 265
void dss_debug_dump_clocks(struct seq_file *s);
#endif
266

267 268
void dss_ctrl_pll_enable(enum dss_pll_id pll_id, bool enable);

269
void dss_sdi_init(int datapairs);
270 271 272
int dss_sdi_enable(void);
void dss_sdi_disable(void);

273
void dss_select_dsi_clk_source(int dsi_module,
274
		enum dss_clk_source clk_src);
275
void dss_select_lcd_clk_source(enum omap_channel channel,
276 277 278 279
		enum dss_clk_source clk_src);
enum dss_clk_source dss_get_dispc_clk_source(void);
enum dss_clk_source dss_get_dsi_clk_source(int dsi_module);
enum dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel);
280

281 282 283
void dss_set_venc_output(enum omap_dss_venc_type type);
void dss_set_dac_pwrdn_bgz(bool enable);

284
int dss_set_fck_rate(unsigned long rate);
285

286
typedef bool (*dss_div_calc_func)(unsigned long fck, void *data);
287 288
bool dss_div_calc(unsigned long pck, unsigned long fck_min,
		dss_div_calc_func func, void *data);
289

290
/* SDI */
T
Tomi Valkeinen 已提交
291
int sdi_init_platform_driver(void) __init;
292
void sdi_uninit_platform_driver(void);
293

294
#ifdef CONFIG_OMAP2_DSS_SDI
295 296
int sdi_init_port(struct platform_device *pdev, struct device_node *port);
void sdi_uninit_port(struct device_node *port);
297
#else
298
static inline int sdi_init_port(struct platform_device *pdev,
299 300 301 302
		struct device_node *port)
{
	return 0;
}
303
static inline void sdi_uninit_port(struct device_node *port)
304 305 306
{
}
#endif
T
Tomi Valkeinen 已提交
307

308
/* DSI */
309

310
#ifdef CONFIG_OMAP2_DSS_DSI
311 312 313 314

struct dentry;
struct file_operations;

T
Tomi Valkeinen 已提交
315
int dsi_init_platform_driver(void) __init;
316
void dsi_uninit_platform_driver(void);
317 318 319 320

void dsi_dump_clocks(struct seq_file *s);

void dsi_irq_handler(void);
321 322
u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt);

323
#else
324 325
static inline u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
{
326 327
	WARN(1, "%s: DSI not compiled in, returning pixel_size as 0\n",
	     __func__);
328 329
	return 0;
}
330
#endif
331 332

/* DPI */
T
Tomi Valkeinen 已提交
333
int dpi_init_platform_driver(void) __init;
334
void dpi_uninit_platform_driver(void);
335

336
#ifdef CONFIG_OMAP2_DSS_DPI
337 338
int dpi_init_port(struct platform_device *pdev, struct device_node *port);
void dpi_uninit_port(struct device_node *port);
339
#else
340
static inline int dpi_init_port(struct platform_device *pdev,
341 342 343 344
		struct device_node *port)
{
	return 0;
}
345
static inline void dpi_uninit_port(struct device_node *port)
346 347 348
{
}
#endif
T
Tomi Valkeinen 已提交
349

350
/* DISPC */
T
Tomi Valkeinen 已提交
351
int dispc_init_platform_driver(void) __init;
352
void dispc_uninit_platform_driver(void);
353 354 355 356 357 358 359
void dispc_dump_clocks(struct seq_file *s);

void dispc_enable_sidle(void);
void dispc_disable_sidle(void);

void dispc_lcd_enable_signal(bool enable);
void dispc_pck_free_enable(bool enable);
360 361 362
void dispc_enable_fifomerge(bool enable);
void dispc_enable_gamma_table(bool enable);

363 364 365 366 367 368
typedef bool (*dispc_div_calc_func)(int lckd, int pckd, unsigned long lck,
		unsigned long pck, void *data);
bool dispc_div_calc(unsigned long dispc,
		unsigned long pck_min, unsigned long pck_max,
		dispc_div_calc_func func, void *data);

369
bool dispc_mgr_timings_ok(enum omap_channel channel,
370
		const struct videomode *timings);
371 372 373 374
int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
		struct dispc_clock_info *cinfo);


375
void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
376
void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
377 378
		u32 *fifo_low, u32 *fifo_high, bool use_fifomerge,
		bool manual_update);
T
Tomi Valkeinen 已提交
379

380
void dispc_mgr_set_clock_div(enum omap_channel channel,
381
		const struct dispc_clock_info *cinfo);
382
int dispc_mgr_get_clock_div(enum omap_channel channel,
383
		struct dispc_clock_info *cinfo);
384
void dispc_set_tv_pclk(unsigned long pclk);
385

386 387 388 389 390
u32 dispc_wb_get_framedone_irq(void);
bool dispc_wb_go_busy(void);
void dispc_wb_go(void);
void dispc_wb_enable(bool enable);
bool dispc_wb_is_enabled(void);
391
void dispc_wb_set_channel_in(enum dss_writeback_channel channel);
392
int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
393
		bool mem_to_mem, const struct videomode *timings);
394

395
/* VENC */
T
Tomi Valkeinen 已提交
396
int venc_init_platform_driver(void) __init;
397
void venc_uninit_platform_driver(void);
398

399
/* HDMI */
400
int hdmi4_init_platform_driver(void) __init;
401
void hdmi4_uninit_platform_driver(void);
402

403
int hdmi5_init_platform_driver(void) __init;
404
void hdmi5_uninit_platform_driver(void);
405

406
/* RFBI */
T
Tomi Valkeinen 已提交
407
int rfbi_init_platform_driver(void) __init;
408
void rfbi_uninit_platform_driver(void);
409

410 411 412 413 414 415 416 417 418 419 420 421

#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
{
	int b;
	for (b = 0; b < 32; ++b) {
		if (irqstatus & (1 << b))
			irq_arr[b]++;
	}
}
#endif

T
Tomi Valkeinen 已提交
422 423 424 425 426 427 428 429 430
/* PLL */
typedef bool (*dss_pll_calc_func)(int n, int m, unsigned long fint,
		unsigned long clkdco, void *data);
typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc,
		void *data);

int dss_pll_register(struct dss_pll *pll);
void dss_pll_unregister(struct dss_pll *pll);
struct dss_pll *dss_pll_find(const char *name);
T
Tomi Valkeinen 已提交
431 432
struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src);
unsigned dss_pll_get_clkout_idx_for_src(enum dss_clk_source src);
T
Tomi Valkeinen 已提交
433 434 435 436 437
int dss_pll_enable(struct dss_pll *pll);
void dss_pll_disable(struct dss_pll *pll);
int dss_pll_set_config(struct dss_pll *pll,
		const struct dss_pll_clock_info *cinfo);

438
bool dss_pll_hsdiv_calc_a(const struct dss_pll *pll, unsigned long clkdco,
T
Tomi Valkeinen 已提交
439 440
		unsigned long out_min, unsigned long out_max,
		dss_hsdiv_calc_func func, void *data);
441
bool dss_pll_calc_a(const struct dss_pll *pll, unsigned long clkin,
T
Tomi Valkeinen 已提交
442 443
		unsigned long pll_min, unsigned long pll_max,
		dss_pll_calc_func func, void *data);
444 445

bool dss_pll_calc_b(const struct dss_pll *pll, unsigned long clkin,
446
	unsigned long target_clkout, struct dss_pll_clock_info *cinfo);
447

T
Tomi Valkeinen 已提交
448 449 450 451
int dss_pll_write_config_type_a(struct dss_pll *pll,
		const struct dss_pll_clock_info *cinfo);
int dss_pll_write_config_type_b(struct dss_pll *pll,
		const struct dss_pll_clock_info *cinfo);
452
int dss_pll_wait_reset_done(struct dss_pll *pll);
T
Tomi Valkeinen 已提交
453

454
#endif