X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fmedia%2Fv4l2-common.h;h=3a6905615d689e277f1e12e9858b3b5194ffc0e6;hb=d42574d1d26a17b5c4a3e9d5cbd2e5cacfd550fa;hp=959e6f6a4eff6d8fb68b5eff44eadd1630d49d9e;hpb=52ebc763d8e0c9f2ab48af89a75e90e2318bac86;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 959e6f6..3a69056 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -28,12 +28,6 @@ #include -/* v4l debugging and diagnostics */ - -/* Debug bitmask flags to be used on V4L2 */ -#define V4L2_DEBUG_IOCTL 0x01 -#define V4L2_DEBUG_IOCTL_ARG 0x02 - /* Common printk constucts for v4l-i2c drivers. These macros create a unique prefix consisting of the driver name, the adapter number and the i2c address. */ @@ -61,42 +55,122 @@ v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \ } while (0) -/* Prints the ioctl in a human-readable format */ -extern void v4l_printk_ioctl(unsigned int cmd); +/* ------------------------------------------------------------------------- */ -/* Prints the ioctl and arg in a human-readable format */ -extern void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg); +/* These printk constructs can be used with v4l2_device and v4l2_subdev */ +#define v4l2_printk(level, dev, fmt, arg...) \ + printk(level "%s: " fmt, (dev)->name , ## arg) -/* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */ -#define v4l_print_ioctl(name, cmd) \ - do { \ - printk(KERN_DEBUG "%s: ", name); \ - v4l_printk_ioctl(cmd); \ - } while (0) +#define v4l2_err(dev, fmt, arg...) \ + v4l2_printk(KERN_ERR, dev, fmt , ## arg) -/* Use this macro in I2C drivers where 'client' is the struct i2c_client - pointer */ -#define v4l_i2c_print_ioctl(client, cmd) \ - do { \ - v4l_client_printk(KERN_DEBUG, client, ""); \ - v4l_printk_ioctl(cmd); \ +#define v4l2_warn(dev, fmt, arg...) \ + v4l2_printk(KERN_WARNING, dev, fmt , ## arg) + +#define v4l2_info(dev, fmt, arg...) \ + v4l2_printk(KERN_INFO, dev, fmt , ## arg) + +/* These three macros assume that the debug level is set with a module + parameter called 'debug'. */ +#define v4l2_dbg(level, debug, dev, fmt, arg...) \ + do { \ + if (debug >= (level)) \ + v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \ } while (0) /* ------------------------------------------------------------------------- */ +/* Priority helper functions */ + +struct v4l2_prio_state { + atomic_t prios[4]; +}; +int v4l2_prio_init(struct v4l2_prio_state *global); +int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, + enum v4l2_priority new); +int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local); +int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local); +enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global); +int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local); + +/* ------------------------------------------------------------------------- */ + /* Control helper functions */ int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl, const char **menu_items); +const char *v4l2_ctrl_get_name(u32 id); const char **v4l2_ctrl_get_menu(u32 id); int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def); -int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl); int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl, const char **menu_items); +#define V4L2_CTRL_MENU_IDS_END (0xffffffff) +int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids); + +/* Note: ctrl_classes points to an array of u32 pointers. Each u32 array is a + 0-terminated array of control IDs. Each array must be sorted low to high + and belong to the same control class. The array of u32 pointers must also + be sorted, from low class IDs to high class IDs. */ u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id); /* ------------------------------------------------------------------------- */ +/* Register/chip ident helper function */ + +struct i2c_client; /* forward reference */ +int v4l2_chip_match_i2c_client(struct i2c_client *c, const struct v4l2_dbg_match *match); +int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_dbg_chip_ident *chip, + u32 ident, u32 revision); +int v4l2_chip_match_host(const struct v4l2_dbg_match *match); + +/* ------------------------------------------------------------------------- */ + +/* Helper function for I2C legacy drivers */ + +struct i2c_driver; +struct i2c_adapter; +struct i2c_client; +struct i2c_device_id; +struct v4l2_device; +struct v4l2_subdev; +struct v4l2_subdev_ops; + +int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver *driver, + const char *name, + int (*probe)(struct i2c_client *, const struct i2c_device_id *)); + +/* Load an i2c module and return an initialized v4l2_subdev struct. + Only call request_module if module_name != NULL. + The client_type argument is the name of the chip that's on the adapter. */ +struct v4l2_subdev *v4l2_i2c_new_subdev(struct i2c_adapter *adapter, + const char *module_name, const char *client_type, u8 addr); +/* Probe and load an i2c module and return an initialized v4l2_subdev struct. + Only call request_module if module_name != NULL. + The client_type argument is the name of the chip that's on the adapter. */ +struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter, + const char *module_name, const char *client_type, + const unsigned short *addrs); +/* Initialize an v4l2_subdev with data from an i2c_client struct */ +void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client, + const struct v4l2_subdev_ops *ops); +/* Return i2c client address of v4l2_subdev. */ +unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd); + +enum v4l2_i2c_tuner_type { + ADDRS_RADIO, /* Radio tuner addresses */ + ADDRS_DEMOD, /* Demod tuner addresses */ + ADDRS_TV, /* TV tuner addresses */ + /* TV tuner addresses if demod is present, this excludes + addresses used by the demodulator from the list of + candidates. */ + ADDRS_TV_WITH_DEMOD, +}; +/* Return a list of I2C tuner addresses to probe. Use only if the tuner + addresses are unknown. */ +const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type); + +/* ------------------------------------------------------------------------- */ + /* Internal ioctls */ /* VIDIOC_INT_DECODE_VBI_LINE */ @@ -109,37 +183,9 @@ struct v4l2_decode_vbi_line { u32 type; /* VBI service type (V4L2_SLICED_*). 0 if no service found */ }; -/* VIDIOC_INT_G_CHIP_IDENT: identifies the actual chip installed on the board */ -enum v4l2_chip_ident { - /* general idents: reserved range 0-49 */ - V4L2_IDENT_UNKNOWN = 0, - - /* module saa7110: just ident= 100 */ - V4L2_IDENT_SAA7110 = 100, - - /* module saa7111: just ident= 101 */ - V4L2_IDENT_SAA7111 = 101, - - /* module saa7115: reserved range 102-149 */ - V4L2_IDENT_SAA7113 = 103, - V4L2_IDENT_SAA7114 = 104, - V4L2_IDENT_SAA7115 = 105, - V4L2_IDENT_SAA7118 = 108, - - /* module saa7127: reserved range 150-199 */ - V4L2_IDENT_SAA7127 = 157, - V4L2_IDENT_SAA7129 = 159, - - /* module cx25840: reserved range 200-249 */ - V4L2_IDENT_CX25836 = 236, - V4L2_IDENT_CX25837 = 237, - V4L2_IDENT_CX25840 = 240, - V4L2_IDENT_CX25841 = 241, - V4L2_IDENT_CX25842 = 242, - V4L2_IDENT_CX25843 = 243, - - /* OmniVision sensors - range 250-299 */ - V4L2_IDENT_OV7670 = 250, +struct v4l2_priv_tun_config { + int tuner; + void *priv; }; /* audio ioctls */ @@ -157,7 +203,7 @@ enum v4l2_chip_ident { #define TUNER_SET_STANDBY _IOW('d', 91, int) /* Sets tda9887 specific stuff, like port1, port2 and qss */ -#define TDA9887_SET_CONFIG _IOW('d', 92, int) +#define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config) /* Switch the tuner to a specific tuner mode. Replacement of AUDC_SET_RADIO */ #define VIDIOC_INT_S_TUNER_MODE _IOW('d', 93, enum v4l2_tuner_type) @@ -203,10 +249,6 @@ enum v4l2_chip_ident { whether CC data from the first or second field should be obtained). */ #define VIDIOC_INT_G_VBI_DATA _IOWR('d', 106, struct v4l2_sliced_vbi_data) -/* Returns the chip identifier or V4L2_IDENT_UNKNOWN if no identification can - be made. */ -#define VIDIOC_INT_G_CHIP_IDENT _IOR ('d', 107, enum v4l2_chip_ident) - /* Sets I2S speed in bps. This is used to provide a standard way to select I2S clock used by driving digital audio streams at some board designs. Usual values for the frequency are 1024000 and 2048000. @@ -243,10 +285,25 @@ struct v4l2_crystal_freq { An extra flags field allows device specific configuration regarding clock frequency dividers, etc. If not used, then set flags to 0. If the frequency is not supported, then -EINVAL is returned. */ -#define VIDIOC_INT_S_CRYSTAL_FREQ _IOW ('d', 113, struct v4l2_crystal_freq) +#define VIDIOC_INT_S_CRYSTAL_FREQ _IOW('d', 113, struct v4l2_crystal_freq) /* Initialize the sensor registors to some sort of reasonable default values. */ -#define VIDIOC_INT_INIT _IOW ('d', 114, u32) +#define VIDIOC_INT_INIT _IOW('d', 114, u32) + +/* Set v4l2_std_id for video OUTPUT devices. This is ignored by + video input devices. */ +#define VIDIOC_INT_S_STD_OUTPUT _IOW('d', 115, v4l2_std_id) + +/* Get v4l2_std_id for video OUTPUT devices. This is ignored by + video input devices. */ +#define VIDIOC_INT_G_STD_OUTPUT _IOW('d', 116, v4l2_std_id) + +/* Set GPIO pins. Very simple right now, might need to be extended with + a v4l2_gpio struct if a direction is also needed. */ +#define VIDIOC_INT_S_GPIO _IOW('d', 117, u32) + +/* Get input status. Same as the status field in the v4l2_input struct. */ +#define VIDIOC_INT_G_INPUT_STATUS _IOR('d', 118, u32) #endif /* V4L2_COMMON_H_ */