drivers/video/pxa3xx-gcu.h

   1 #ifndef __PXA3XX_GCU_H__
   2 #define __PXA3XX_GCU_H__
   3
   4 #include <linux/types.h>
   5
   6 /* Number of 32bit words in display list (ring buffer). */
   7 #define PXA3XX_GCU_BUFFER_WORDS  ((256 * 1024 - 256) / 4)
   8
   9 /* To be increased when breaking the ABI */
  10 #define PXA3XX_GCU_SHARED_MAGIC  0x30000001
  11
  12 #define PXA3XX_GCU_BATCH_WORDS   8192
  13
  14 struct pxa3xx_gcu_shared {
  15         u32            buffer[PXA3XX_GCU_BUFFER_WORDS];
  16
  17         bool           hw_running;
  18
  19         unsigned long  buffer_phys;
  20
  21         unsigned int   num_words;
  22         unsigned int   num_writes;
  23         unsigned int   num_done;
  24         unsigned int   num_interrupts;
  25         unsigned int   num_wait_idle;
  26         unsigned int   num_wait_free;
  27         unsigned int   num_idle;
  28
  29         u32            magic;
  30 };
  31
  32 /* Initialization and synchronization.
  33  * Hardware is started upon write(). */
  34 #define PXA3XX_GCU_IOCTL_RESET          _IO('G', 0)
  35 #define PXA3XX_GCU_IOCTL_WAIT_IDLE      _IO('G', 2)
  36
  37 #endif /* __PXA3XX_GCU_H__ */
  38