vfc.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:5k
- #ifndef _LINUX_VFC_H_
- #define _LINUX_VFC_H_
- #include <linux/devfs_fs_kernel.h>
- /*
- * The control register for the vfc is at offset 0x4000
- * The first field ram bank is located at offset 0x5000
- * The second field ram bank is at offset 0x7000
- * i2c_reg address the Phillips PCF8584(see notes in vfc_i2c.c)
- * data and transmit register.
- * i2c_s1 controls register s1 of the PCF8584
- * i2c_write seems to be similar to i2c_write but I am not
- * quite sure why sun uses it
- *
- * I am also not sure whether or not you can read the fram bank as a
- * whole or whether you must read each word individually from offset
- * 0x5000 as soon as I figure it out I will update this file */
- struct vfc_regs {
- char pad1[0x4000];
- unsigned int control; /* Offset 0x4000 */
- char pad2[0xffb]; /* from offset 0x4004 to 0x5000 */
- unsigned int fram_bank1; /* Offset 0x5000 */
- char pad3[0xffb]; /* from offset 0x5004 to 0x6000 */
- unsigned int i2c_reg; /* Offset 0x6000 */
- unsigned int i2c_magic2; /* Offset 0x6004 */
- unsigned int i2c_s1; /* Offset 0x6008 */
- unsigned int i2c_write; /* Offset 0x600c */
- char pad4[0xff0]; /* from offset 0x6010 to 0x7000 */
- unsigned int fram_bank2; /* Offset 0x7000 */
- char pad5[0x1000];
- };
- #define VFC_SAA9051_NR (13)
- #define VFC_SAA9051_ADDR (0x8a)
- /* The saa9051 returns the following for its status
- * bit 0 - 0
- * bit 1 - SECAM color detected (1=found,0=not found)
- * bit 2 - COLOR detected (1=found,0=not found)
- * bit 3 - 0
- * bit 4 - Field frequency bit (1=60Hz (NTSC), 0=50Hz (PAL))
- * bit 5 - 1
- * bit 6 - horizontal frequency lock (1=transmitter found,
- * 0=no transmitter)
- * bit 7 - Power on reset bit (1=reset,0=at least one successful
- * read of the status byte)
- */
- #define VFC_SAA9051_PONRES (0x80)
- #define VFC_SAA9051_HLOCK (0x40)
- #define VFC_SAA9051_FD (0x10)
- #define VFC_SAA9051_CD (0x04)
- #define VFC_SAA9051_CS (0x02)
- /* The various saa9051 sub addresses */
- #define VFC_SAA9051_IDEL (0)
- #define VFC_SAA9051_HSY_START (1)
- #define VFC_SAA9051_HSY_STOP (2)
- #define VFC_SAA9051_HC_START (3)
- #define VFC_SAA9051_HC_STOP (4)
- #define VFC_SAA9051_HS_START (5)
- #define VFC_SAA9051_HORIZ_PEAK (6)
- #define VFC_SAA9051_HUE (7)
- #define VFC_SAA9051_C1 (8)
- #define VFC_SAA9051_C2 (9)
- #define VFC_SAA9051_C3 (0xa)
- #define VFC_SAA9051_SECAM_DELAY (0xb)
- /* Bit settings for saa9051 sub address 0x06 */
- #define VFC_SAA9051_AP1 (0x01)
- #define VFC_SAA9051_AP2 (0x02)
- #define VFC_SAA9051_COR1 (0x04)
- #define VFC_SAA9051_COR2 (0x08)
- #define VFC_SAA9051_BP1 (0x10)
- #define VFC_SAA9051_BP2 (0x20)
- #define VFC_SAA9051_PF (0x40)
- #define VFC_SAA9051_BY (0x80)
- /* Bit settings for saa9051 sub address 0x08 */
- #define VFC_SAA9051_CCFR0 (0x01)
- #define VFC_SAA9051_CCFR1 (0x02)
- #define VFC_SAA9051_YPN (0x04)
- #define VFC_SAA9051_ALT (0x08)
- #define VFC_SAA9051_CO (0x10)
- #define VFC_SAA9051_VTR (0x20)
- #define VFC_SAA9051_FS (0x40)
- #define VFC_SAA9051_HPLL (0x80)
- /* Bit settings for saa9051 sub address 9 */
- #define VFC_SAA9051_SS0 (0x01)
- #define VFC_SAA9051_SS1 (0x02)
- #define VFC_SAA9051_AFCC (0x04)
- #define VFC_SAA9051_CI (0x08)
- #define VFC_SAA9051_SA9D4 (0x10) /* Don't care bit */
- #define VFC_SAA9051_OEC (0x20)
- #define VFC_SAA9051_OEY (0x40)
- #define VFC_SAA9051_VNL (0x80)
- /* Bit settings for saa9051 sub address 0x0A */
- #define VFC_SAA9051_YDL0 (0x01)
- #define VFC_SAA9051_YDL1 (0x02)
- #define VFC_SAA9051_YDL2 (0x04)
- #define VFC_SAA9051_SS2 (0x08)
- #define VFC_SAA9051_SS3 (0x10)
- #define VFC_SAA9051_YC (0x20)
- #define VFC_SAA9051_CT (0x40)
- #define VFC_SAA9051_SYC (0x80)
- #define VFC_SAA9051_SA(a,b) ((a)->saa9051_state_array[(b)+1])
- #define vfc_update_saa9051(a) (vfc_i2c_sendbuf((a),VFC_SAA9051_ADDR,
- (a)->saa9051_state_array,
- VFC_SAA9051_NR))
- struct vfc_dev {
- volatile struct vfc_regs *regs;
- struct vfc_regs *phys_regs;
- unsigned int control_reg;
- devfs_handle_t de;
- struct semaphore device_lock_sem;
- struct timer_list poll_timer;
- wait_queue_head_t poll_wait;
- int instance;
- int busy;
- unsigned long which_io;
- unsigned char saa9051_state_array[VFC_SAA9051_NR];
- };
- extern struct vfc_dev **vfc_dev_lst;
- void captstat_reset(struct vfc_dev *);
- void memptr_reset(struct vfc_dev *);
- int vfc_pcf8584_init(struct vfc_dev *);
- void vfc_i2c_delay_no_busy(struct vfc_dev *, unsigned long);
- void vfc_i2c_delay(struct vfc_dev *);
- int vfc_i2c_sendbuf(struct vfc_dev *, unsigned char, char *, int) ;
- int vfc_i2c_recvbuf(struct vfc_dev *, unsigned char, char *, int) ;
- int vfc_i2c_reset_bus(struct vfc_dev *);
- int vfc_init_i2c_bus(struct vfc_dev *);
- void vfc_lock_device(struct vfc_dev *);
- void vfc_unlock_device(struct vfc_dev *);
- #define VFC_CONTROL_DIAGMODE 0x10000000
- #define VFC_CONTROL_MEMPTR 0x20000000
- #define VFC_CONTROL_CAPTURE 0x02000000
- #define VFC_CONTROL_CAPTRESET 0x04000000
- #define VFC_STATUS_CAPTURE 0x08000000
- #ifdef VFC_IOCTL_DEBUG
- #define VFC_IOCTL_DEBUG_PRINTK(a) printk a
- #else
- #define VFC_IOCTL_DEBUG_PRINTK(a)
- #endif
- #ifdef VFC_I2C_DEBUG
- #define VFC_I2C_DEBUG_PRINTK(a) printk a
- #else
- #define VFC_I2C_DEBUG_PRINTK(a)
- #endif
- #endif /* _LINUX_VFC_H_ */