mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-01 21:17:31 +02:00
130 lines
3.5 KiB
C
130 lines
3.5 KiB
C
/*
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* linux/drivers/video/jz_auo_a043fl01v2.h -- Ingenic LCD driver
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*/
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#ifndef __JZ_AUO_A043FL01V2_H__
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#define __JZ_AUO_A043FL01V2_H__
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#if defined(CONFIG_JZ4750_APUS) /* board pavo */
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#define SPEN (32*3+29) /*LCD_CS*/
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#define SPCK (32*3+26) /*LCD_SCL*/
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#define SPDA (32*3+27) /*LCD_SDA*/
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#define LCD_DISP_N (32*4+25) /*LCD_DISP_N use for lcd reset*/
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#elif defined(CONFIG_JZ4750_FUWA) /* board fuwa */
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#define SPEN (32*3+29) /*LCD_CS*/
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#define SPCK (32*3+26) /*LCD_SCL*/
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#define SPDA (32*3+27) /*LCD_SDA*/
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#define LCD_DISP_N (32*5+2) /*LCD_DISP_N use for lcd reset*/
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#elif defined(CONFIG_JZ4750D_CETUS) /* board cetus */
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#define SPEN (32*5+13) /*LCD_CS*/
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#define SPCK (32*5+10) /*LCD_SCL*/
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#define SPDA (32*5+11) /*LCD_SDA*/
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#define LCD_DISP_N (32*4+18) /*LCD_DISP_N use for lcd reset*/
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#else
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#error "driver/video/Jzlcd.h, please define SPI pins on your board."
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#endif
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#define __spi_write_reg(reg, val) \
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do { \
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unsigned char no; \
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unsigned short value; \
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unsigned char a=0; \
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unsigned char b=0; \
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__gpio_as_output(SPEN); /* use SPDA */ \
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__gpio_as_output(SPCK); /* use SPCK */ \
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__gpio_as_output(SPDA); /* use SPDA */ \
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a=reg; \
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b=val; \
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__gpio_set_pin(SPEN); \
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__gpio_clear_pin(SPCK); \
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udelay(50); \
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__gpio_clear_pin(SPDA); \
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__gpio_clear_pin(SPEN); \
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udelay(50); \
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value=((a<<8)|(b&0xFF)); \
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for(no=0;no<16;no++) \
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{ \
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if((value&0x8000)==0x8000){ \
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__gpio_set_pin(SPDA);} \
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else{ \
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__gpio_clear_pin(SPDA); } \
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udelay(50); \
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__gpio_set_pin(SPCK); \
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value=(value<<1); \
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udelay(50); \
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__gpio_clear_pin(SPCK); \
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} \
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__gpio_set_pin(SPEN); \
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udelay(400); \
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} while (0)
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#define __spi_read_reg(reg,val) \
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do{ \
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unsigned char no; \
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unsigned short value; \
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__gpio_as_output(SPEN); /* use SPDA */ \
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__gpio_as_output(SPCK); /* use SPCK */ \
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__gpio_as_output(SPDA); /* use SPDA */ \
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value = ((reg << 0) | (1 << 7)); \
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val = 0; \
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__gpio_as_output(SPDA); \
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__gpio_set_pin(SPEN); \
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__gpio_clear_pin(SPCK); \
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udelay(50); \
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__gpio_clear_pin(SPDA); \
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__gpio_clear_pin(SPEN); \
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udelay(50); \
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for (no = 0; no < 16; no++ ) { \
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udelay(50); \
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if(no < 8) \
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{ \
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if (value & 0x80) /* send data */ \
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__gpio_set_pin(SPDA); \
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else \
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__gpio_clear_pin(SPDA); \
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udelay(50); \
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__gpio_set_pin(SPCK); \
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value = (value << 1); \
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udelay(50); \
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__gpio_clear_pin(SPCK); \
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if(no == 7) \
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__gpio_as_input(SPDA); \
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} \
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else \
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{ \
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udelay(100); \
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__gpio_set_pin(SPCK); \
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udelay(50); \
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val = (val << 1); \
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val |= __gpio_get_pin(SPDA); \
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__gpio_clear_pin(SPCK); \
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} \
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} \
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__gpio_as_output(SPDA); \
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__gpio_set_pin(SPEN); \
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udelay(400); \
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} while(0)
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#define __lcd_special_pin_init() \
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do { \
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__gpio_as_output(SPEN); /* use SPDA */ \
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__gpio_as_output(SPCK); /* use SPCK */ \
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__gpio_as_output(SPDA); /* use SPDA */ \
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__gpio_as_output(LCD_DISP_N); \
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__gpio_clear_pin(LCD_DISP_N); \
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} while (0)
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#define __lcd_special_on() \
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do { \
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udelay(50);\
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__gpio_clear_pin(LCD_DISP_N); \
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udelay(100); \
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__gpio_set_pin(LCD_DISP_N); \
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} while (0)
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#define __lcd_special_off() \
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do { \
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__gpio_clear_pin(LCD_DISP_N); \
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} while (0)
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#endif /* __JZ_AUO_A043FL01V2_H__ */
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