6de9edd5bd
The SH-Mobile HDMI driver runs in several contexts: ISR, delayed work-queue, task context, when called from the sh_mobile_lcdc framebuffer driver. This creates ample race possibilities. Even though most these races are purely theoretical, it is better to close them. To trace fb_info validity we install a notification callback in the HDMI driver, and the only way for it to get to driver internal data is by using struct sh_mobile_lcdc_chan, therefore it had to be extracted into a separate common header. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
#ifndef __ASM_SH_MOBILE_LCDC_H__
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#define __ASM_SH_MOBILE_LCDC_H__
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#include <linux/fb.h>
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enum {
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RGB8, /* 24bpp, 8:8:8 */
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RGB9, /* 18bpp, 9:9 */
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RGB12A, /* 24bpp, 12:12 */
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RGB12B, /* 12bpp */
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RGB16, /* 16bpp */
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RGB18, /* 18bpp */
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RGB24, /* 24bpp */
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YUV422, /* 16bpp */
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SYS8A, /* 24bpp, 8:8:8 */
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SYS8B, /* 18bpp, 8:8:2 */
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SYS8C, /* 18bpp, 2:8:8 */
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SYS8D, /* 16bpp, 8:8 */
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SYS9, /* 18bpp, 9:9 */
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SYS12, /* 24bpp, 12:12 */
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SYS16A, /* 16bpp */
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SYS16B, /* 18bpp, 16:2 */
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SYS16C, /* 18bpp, 2:16 */
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SYS18, /* 18bpp */
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SYS24, /* 24bpp */
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};
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enum { LCDC_CHAN_DISABLED = 0,
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LCDC_CHAN_MAINLCD,
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LCDC_CHAN_SUBLCD };
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enum { LCDC_CLK_BUS, LCDC_CLK_PERIPHERAL, LCDC_CLK_EXTERNAL };
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#define LCDC_FLAGS_DWPOL (1 << 0) /* Rising edge dot clock data latch */
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#define LCDC_FLAGS_DIPOL (1 << 1) /* Active low display enable polarity */
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#define LCDC_FLAGS_DAPOL (1 << 2) /* Active low display data polarity */
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#define LCDC_FLAGS_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */
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#define LCDC_FLAGS_DWCNT (1 << 4) /* Disable dotclock during blanking */
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struct sh_mobile_lcdc_sys_bus_cfg {
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unsigned long ldmt2r;
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unsigned long ldmt3r;
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unsigned long deferred_io_msec;
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};
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struct sh_mobile_lcdc_sys_bus_ops {
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void (*write_index)(void *handle, unsigned long data);
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void (*write_data)(void *handle, unsigned long data);
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unsigned long (*read_data)(void *handle);
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};
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struct module;
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struct sh_mobile_lcdc_board_cfg {
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struct module *owner;
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void *board_data;
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int (*setup_sys)(void *board_data, void *sys_ops_handle,
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struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
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void (*start_transfer)(void *board_data, void *sys_ops_handle,
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struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
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void (*display_on)(void *board_data, struct fb_info *info);
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void (*display_off)(void *board_data);
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};
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struct sh_mobile_lcdc_lcd_size_cfg { /* width and height of panel in mm */
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unsigned long width;
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unsigned long height;
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};
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struct sh_mobile_lcdc_chan_cfg {
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int chan;
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int bpp;
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int interface_type; /* selects RGBn or SYSn I/F, see above */
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int clock_divider;
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unsigned long flags; /* LCDC_FLAGS_... */
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const struct fb_videomode *lcd_cfg;
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int num_cfg;
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struct sh_mobile_lcdc_lcd_size_cfg lcd_size_cfg;
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struct sh_mobile_lcdc_board_cfg board_cfg;
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struct sh_mobile_lcdc_sys_bus_cfg sys_bus_cfg; /* only for SYSn I/F */
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};
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struct sh_mobile_lcdc_info {
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int clock_source;
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struct sh_mobile_lcdc_chan_cfg ch[2];
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};
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#endif /* __ASM_SH_MOBILE_LCDC_H__ */
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