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656d4f332c
There's no need to query the hardware for the currenty brightness value through a platform data callback when we can cache the value internally in the LCDC driver. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
#ifndef SH_MOBILE_LCDCFB_H
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#define SH_MOBILE_LCDCFB_H
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#include <linux/completion.h>
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#include <linux/fb.h>
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#include <linux/mutex.h>
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#include <linux/wait.h>
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/* per-channel registers */
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enum { LDDCKPAT1R, LDDCKPAT2R, LDMT1R, LDMT2R, LDMT3R, LDDFR, LDSM1R,
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LDSM2R, LDSA1R, LDSA2R, LDMLSR, LDHCNR, LDHSYNR, LDVLNR, LDVSYNR, LDPMR,
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LDHAJR,
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NR_CH_REGS };
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#define PALETTE_NR 16
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struct backlight_device;
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struct fb_info;
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struct module;
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struct sh_mobile_lcdc_chan;
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struct sh_mobile_lcdc_entity;
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struct sh_mobile_lcdc_format_info;
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struct sh_mobile_lcdc_priv;
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#define SH_MOBILE_LCDC_DISPLAY_DISCONNECTED 0
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#define SH_MOBILE_LCDC_DISPLAY_CONNECTED 1
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struct sh_mobile_lcdc_entity_ops {
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/* Display */
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int (*display_on)(struct sh_mobile_lcdc_entity *entity);
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void (*display_off)(struct sh_mobile_lcdc_entity *entity);
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};
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enum sh_mobile_lcdc_entity_event {
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SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT,
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SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT,
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SH_MOBILE_LCDC_EVENT_DISPLAY_MODE,
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};
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struct sh_mobile_lcdc_entity {
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struct module *owner;
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const struct sh_mobile_lcdc_entity_ops *ops;
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struct sh_mobile_lcdc_chan *lcdc;
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struct fb_videomode def_mode;
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};
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/*
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* struct sh_mobile_lcdc_chan - LCDC display channel
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*
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* @pan_y_offset: Panning linear offset in bytes (luma component)
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* @base_addr_y: Frame buffer viewport base address (luma component)
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* @base_addr_c: Frame buffer viewport base address (chroma component)
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* @pitch: Frame buffer line pitch
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*/
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struct sh_mobile_lcdc_chan {
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struct sh_mobile_lcdc_priv *lcdc;
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struct sh_mobile_lcdc_entity *tx_dev;
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const struct sh_mobile_lcdc_chan_cfg *cfg;
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unsigned long *reg_offs;
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unsigned long ldmt1r_value;
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unsigned long enabled; /* ME and SE in LDCNT2R */
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void *cache;
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struct mutex open_lock; /* protects the use counter */
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int use_count;
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void *fb_mem;
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unsigned long fb_size;
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dma_addr_t dma_handle;
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unsigned long pan_y_offset;
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unsigned long frame_end;
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wait_queue_head_t frame_end_wait;
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struct completion vsync_completion;
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const struct sh_mobile_lcdc_format_info *format;
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u32 colorspace;
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unsigned int xres;
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unsigned int xres_virtual;
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unsigned int yres;
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unsigned int yres_virtual;
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unsigned int pitch;
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unsigned long base_addr_y;
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unsigned long base_addr_c;
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unsigned int line_size;
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int (*notify)(struct sh_mobile_lcdc_chan *ch,
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enum sh_mobile_lcdc_entity_event event,
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const struct fb_videomode *mode,
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const struct fb_monspecs *monspec);
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/* Backlight */
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struct backlight_device *bl;
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unsigned int bl_brightness;
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/* FB */
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struct fb_info *info;
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u32 pseudo_palette[PALETTE_NR];
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struct {
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unsigned int width;
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unsigned int height;
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struct fb_videomode mode;
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} display;
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struct fb_deferred_io defio;
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struct scatterlist *sglist;
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int blank_status;
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};
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#endif
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