2 * linux/drivers/video/omap2/dss/dss.h
4 * Copyright (C) 2009 Nokia Corporation
7 * Some code and ideas taken from drivers/video/omap/ driver
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.
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
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/>.
26 #include <linux/interrupt.h>
32 #ifdef DSS_SUBSYS_NAME
33 #define pr_fmt(fmt) DSS_SUBSYS_NAME ": " fmt
35 #define pr_fmt(fmt) fmt
38 #define DSSDBG(format, ...) \
39 pr_debug(format, ## __VA_ARGS__)
41 #ifdef DSS_SUBSYS_NAME
42 #define DSSERR(format, ...) \
43 printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
46 #define DSSERR(format, ...) \
47 printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
50 #ifdef DSS_SUBSYS_NAME
51 #define DSSINFO(format, ...) \
52 printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
55 #define DSSINFO(format, ...) \
56 printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
59 #ifdef DSS_SUBSYS_NAME
60 #define DSSWARN(format, ...) \
61 printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
64 #define DSSWARN(format, ...) \
65 printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
68 /* OMAP TRM gives bitfields as start:end, where start is the higher bit
69 number. For example 7:0 */
70 #define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end))
71 #define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
72 #define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
73 #define FLD_MOD(orig, val, start, end) \
74 (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
76 enum dss_io_pad_mode {
77 DSS_IO_PAD_MODE_RESET,
79 DSS_IO_PAD_MODE_BYPASS,
82 enum dss_hdmi_venc_clk_source_select {
87 enum dss_dsi_content_type {
89 DSS_DSI_CONTENT_GENERIC,
92 enum dss_writeback_channel {
113 #define DSS_PLL_MAX_HSDIVS 4
116 * Type-A PLLs: clkout[]/mX[] refer to hsdiv outputs m4, m5, m6, m7.
117 * Type-B PLLs: clkout[0] refers to m2.
119 struct dss_pll_clock_info {
120 /* rates that we get with dividers below */
122 unsigned long clkdco;
123 unsigned long clkout[DSS_PLL_MAX_HSDIVS];
129 u16 mX[DSS_PLL_MAX_HSDIVS];
134 int (*enable)(struct dss_pll *pll);
135 void (*disable)(struct dss_pll *pll);
136 int (*set_config)(struct dss_pll *pll,
137 const struct dss_pll_clock_info *cinfo);
146 unsigned long fint_min, fint_max;
147 unsigned long clkdco_min, clkdco_low, clkdco_max;
151 u8 mX_msb[DSS_PLL_MAX_HSDIVS], mX_lsb[DSS_PLL_MAX_HSDIVS];
164 struct regulator *regulator;
168 const struct dss_pll_hw *hw;
170 const struct dss_pll_ops *ops;
172 struct dss_pll_clock_info cinfo;
175 struct dispc_clock_info {
176 /* rates that we get with dividers below */
185 struct dss_lcd_mgr_config {
186 enum dss_io_pad_mode io_pad_mode;
191 struct dispc_clock_info clock_info;
193 int video_port_width;
195 int lcden_sig_polarity;
199 struct platform_device;
202 struct platform_device *dss_get_core_pdev(void);
203 int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask);
204 void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask);
205 int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
206 int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *));
209 int dss_suspend_all_devices(void);
210 int dss_resume_all_devices(void);
211 void dss_disable_all_devices(void);
213 int display_init_sysfs(struct platform_device *pdev);
214 void display_uninit_sysfs(struct platform_device *pdev);
217 int dss_init_overlay_managers(void);
218 void dss_uninit_overlay_managers(void);
219 int dss_init_overlay_managers_sysfs(struct platform_device *pdev);
220 void dss_uninit_overlay_managers_sysfs(struct platform_device *pdev);
221 int dss_mgr_simple_check(struct omap_overlay_manager *mgr,
222 const struct omap_overlay_manager_info *info);
223 int dss_mgr_check_timings(struct omap_overlay_manager *mgr,
224 const struct omap_video_timings *timings);
225 int dss_mgr_check(struct omap_overlay_manager *mgr,
226 struct omap_overlay_manager_info *info,
227 const struct omap_video_timings *mgr_timings,
228 const struct dss_lcd_mgr_config *config,
229 struct omap_overlay_info **overlay_infos);
231 static inline bool dss_mgr_is_lcd(enum omap_channel id)
233 if (id == OMAP_DSS_CHANNEL_LCD || id == OMAP_DSS_CHANNEL_LCD2 ||
234 id == OMAP_DSS_CHANNEL_LCD3)
240 int dss_manager_kobj_init(struct omap_overlay_manager *mgr,
241 struct platform_device *pdev);
242 void dss_manager_kobj_uninit(struct omap_overlay_manager *mgr);
245 void dss_init_overlays(struct platform_device *pdev);
246 void dss_uninit_overlays(struct platform_device *pdev);
247 void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
248 int dss_ovl_simple_check(struct omap_overlay *ovl,
249 const struct omap_overlay_info *info);
250 int dss_ovl_check(struct omap_overlay *ovl, struct omap_overlay_info *info,
251 const struct omap_video_timings *mgr_timings);
252 bool dss_ovl_use_replication(struct dss_lcd_mgr_config config,
253 enum omap_color_mode mode);
254 int dss_overlay_kobj_init(struct omap_overlay *ovl,
255 struct platform_device *pdev);
256 void dss_overlay_kobj_uninit(struct omap_overlay *ovl);
259 int dss_init_platform_driver(void) __init;
260 void dss_uninit_platform_driver(void);
262 int dss_runtime_get(void);
263 void dss_runtime_put(void);
265 unsigned long dss_get_dispc_clk_rate(void);
266 int dss_dpi_select_source(int port, enum omap_channel channel);
267 void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
268 enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
269 const char *dss_get_generic_clk_source_name(enum omap_dss_clk_source clk_src);
270 void dss_dump_clocks(struct seq_file *s);
273 struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
274 struct regulator *regulator);
275 void dss_video_pll_uninit(struct dss_pll *pll);
278 struct device_node *dss_of_port_get_parent_device(struct device_node *port);
279 u32 dss_of_port_get_port_number(struct device_node *port);
281 #if defined(CONFIG_OMAP2_DSS_DEBUGFS)
282 void dss_debug_dump_clocks(struct seq_file *s);
285 void dss_ctrl_pll_enable(enum dss_pll_id pll_id, bool enable);
286 void dss_ctrl_pll_set_control_mux(enum dss_pll_id pll_id,
287 enum omap_channel channel);
289 void dss_sdi_init(int datapairs);
290 int dss_sdi_enable(void);
291 void dss_sdi_disable(void);
293 void dss_select_dsi_clk_source(int dsi_module,
294 enum omap_dss_clk_source clk_src);
295 void dss_select_lcd_clk_source(enum omap_channel channel,
296 enum omap_dss_clk_source clk_src);
297 enum omap_dss_clk_source dss_get_dispc_clk_source(void);
298 enum omap_dss_clk_source dss_get_dsi_clk_source(int dsi_module);
299 enum omap_dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel);
301 void dss_set_venc_output(enum omap_dss_venc_type type);
302 void dss_set_dac_pwrdn_bgz(bool enable);
304 int dss_set_fck_rate(unsigned long rate);
306 typedef bool (*dss_div_calc_func)(unsigned long fck, void *data);
307 bool dss_div_calc(unsigned long pck, unsigned long fck_min,
308 dss_div_calc_func func, void *data);
311 int sdi_init_platform_driver(void) __init;
312 void sdi_uninit_platform_driver(void);
314 #ifdef CONFIG_OMAP2_DSS_SDI
315 int sdi_init_port(struct platform_device *pdev, struct device_node *port);
316 void sdi_uninit_port(struct device_node *port);
318 static inline int sdi_init_port(struct platform_device *pdev,
319 struct device_node *port)
323 static inline void sdi_uninit_port(struct device_node *port)
330 #ifdef CONFIG_OMAP2_DSS_DSI
333 struct file_operations;
335 int dsi_init_platform_driver(void) __init;
336 void dsi_uninit_platform_driver(void);
338 void dsi_dump_clocks(struct seq_file *s);
340 void dsi_irq_handler(void);
341 u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt);
344 static inline u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
346 WARN(1, "%s: DSI not compiled in, returning pixel_size as 0\n",
353 int dpi_init_platform_driver(void) __init;
354 void dpi_uninit_platform_driver(void);
356 #ifdef CONFIG_OMAP2_DSS_DPI
357 int dpi_init_port(struct platform_device *pdev, struct device_node *port);
358 void dpi_uninit_port(struct device_node *port);
360 static inline int dpi_init_port(struct platform_device *pdev,
361 struct device_node *port)
365 static inline void dpi_uninit_port(struct device_node *port)
371 int dispc_init_platform_driver(void) __init;
372 void dispc_uninit_platform_driver(void);
373 void dispc_dump_clocks(struct seq_file *s);
375 void dispc_enable_sidle(void);
376 void dispc_disable_sidle(void);
378 void dispc_lcd_enable_signal(bool enable);
379 void dispc_pck_free_enable(bool enable);
380 void dispc_enable_fifomerge(bool enable);
381 void dispc_enable_gamma_table(bool enable);
383 typedef bool (*dispc_div_calc_func)(int lckd, int pckd, unsigned long lck,
384 unsigned long pck, void *data);
385 bool dispc_div_calc(unsigned long dispc,
386 unsigned long pck_min, unsigned long pck_max,
387 dispc_div_calc_func func, void *data);
389 bool dispc_mgr_timings_ok(enum omap_channel channel,
390 const struct omap_video_timings *timings);
391 int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
392 struct dispc_clock_info *cinfo);
395 void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
396 void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
397 u32 *fifo_low, u32 *fifo_high, bool use_fifomerge,
400 void dispc_mgr_set_clock_div(enum omap_channel channel,
401 const struct dispc_clock_info *cinfo);
402 int dispc_mgr_get_clock_div(enum omap_channel channel,
403 struct dispc_clock_info *cinfo);
404 void dispc_set_tv_pclk(unsigned long pclk);
406 u32 dispc_wb_get_framedone_irq(void);
407 bool dispc_wb_go_busy(void);
408 void dispc_wb_go(void);
409 void dispc_wb_enable(bool enable);
410 bool dispc_wb_is_enabled(void);
411 void dispc_wb_set_channel_in(enum dss_writeback_channel channel);
412 int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
413 bool mem_to_mem, const struct omap_video_timings *timings);
416 int venc_init_platform_driver(void) __init;
417 void venc_uninit_platform_driver(void);
420 int hdmi4_init_platform_driver(void) __init;
421 void hdmi4_uninit_platform_driver(void);
423 int hdmi5_init_platform_driver(void) __init;
424 void hdmi5_uninit_platform_driver(void);
427 int rfbi_init_platform_driver(void) __init;
428 void rfbi_uninit_platform_driver(void);
431 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
432 static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
435 for (b = 0; b < 32; ++b) {
436 if (irqstatus & (1 << b))
443 typedef bool (*dss_pll_calc_func)(int n, int m, unsigned long fint,
444 unsigned long clkdco, void *data);
445 typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc,
448 int dss_pll_register(struct dss_pll *pll);
449 void dss_pll_unregister(struct dss_pll *pll);
450 struct dss_pll *dss_pll_find(const char *name);
451 int dss_pll_enable(struct dss_pll *pll);
452 void dss_pll_disable(struct dss_pll *pll);
453 int dss_pll_set_config(struct dss_pll *pll,
454 const struct dss_pll_clock_info *cinfo);
456 bool dss_pll_hsdiv_calc(const struct dss_pll *pll, unsigned long clkdco,
457 unsigned long out_min, unsigned long out_max,
458 dss_hsdiv_calc_func func, void *data);
459 bool dss_pll_calc(const struct dss_pll *pll, unsigned long clkin,
460 unsigned long pll_min, unsigned long pll_max,
461 dss_pll_calc_func func, void *data);
462 int dss_pll_write_config_type_a(struct dss_pll *pll,
463 const struct dss_pll_clock_info *cinfo);
464 int dss_pll_write_config_type_b(struct dss_pll *pll,
465 const struct dss_pll_clock_info *cinfo);
466 int dss_pll_wait_reset_done(struct dss_pll *pll);