基于PXA270的LCD显示系统的设计与实现

#if defined(CONFIG_FB_LB064v02)

#define LCD_PIXCLOCK        250000//54000//150000

#define LCD_BPP             16

#define LCD_XRES            640

#define LCD_YRES            480

#define LCD_HORIZONTAL_SYNC_PULSE_WIDTH 46

#define LCD_VERTICAL_SYNC_PULSE_WIDTH   1

#define LCD_BEGIN_OF_LINE_WAIT_COUNT    96

#define LCD_BEGIN_FRAME_WAIT_COUNT    35

#define LCD_END_OF_LINE_WAIT_COUNT     4

#define LCD_END_OF_FRAME_WAIT_COUNT    0

#define LCD_SYNC    (FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT)

#define LCD_LCCR0   (LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM | LCCR0_OUM | LCCR0_BM | LCCR0_QDM | LCCR0_PAS |LCCR0_EFM | LCCR0_IUM | LCCR0_SFM | LCCR0_LDM )

#define LCD_LCCR3                   (LCCR3_PCP | LCCR3_HSP | LCCR3_VSP)

#endif

static struct file_operations fb_fops = {

      owner:                 THIS_MODULE,

      read:           fb_read,   // 读操作

      write:                   fb_write, // 写操作

      ioctl:           fb_ioctl,  // 控制操作

      mmap:                 fb_mmap, // 映射操作

      open:                   fb_open,  // 打开操作

      release:       fb_release,    // 关闭操作

#ifdef HAVE_ARCH_FB_UNMAPPED_AREA

      get_unmapped_area: get_fb_unmapped_area,

#endif

};