7caa4342ca
Based on the patch by Takanari Hayama <taki@igel.co.jp> Adds support framework necessary to use Media RAM (MERAM) caching functionality with the LCDC. The MERAM is accessed through up to 4 Interconnect Buffers (ICBs). ICB numbers and MERAM address ranges to use are specified in by filling in the .meram_cfg member of the LCDC platform data Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
46 lines
1.1 KiB
C
46 lines
1.1 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 sh_mobile_lcdc_priv;
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struct fb_info;
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struct backlight_device;
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struct sh_mobile_lcdc_chan {
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struct sh_mobile_lcdc_priv *lcdc;
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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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struct sh_mobile_lcdc_chan_cfg cfg;
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u32 pseudo_palette[PALETTE_NR];
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unsigned long saved_ch_regs[NR_CH_REGS];
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struct fb_info *info;
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struct backlight_device *bl;
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dma_addr_t dma_handle;
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struct fb_deferred_io defio;
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struct scatterlist *sglist;
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unsigned long frame_end;
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unsigned long pan_offset;
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wait_queue_head_t frame_end_wait;
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struct completion vsync_completion;
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struct fb_var_screeninfo display_var;
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int use_count;
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int blank_status;
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struct mutex open_lock; /* protects the use counter */
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int meram_enabled;
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};
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#endif
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