| | 1 | #ifndef __USBMIXER_H |
| | 2 | #define __USBMIXER_H |
| | 3 | |
| | 4 | #include <sound/info.h> |
| | 5 | |
| | 6 | struct usb_mixer_interface { |
| | 7 | struct snd_usb_audio *chip; |
| | 8 | struct usb_host_interface *hostif; |
| | 9 | struct list_head list; |
| | 10 | unsigned int ignore_ctl_error; |
| | 11 | struct urb *urb; |
| | 12 | /* array[MAX_ID_ELEMS], indexed by unit id */ |
| | 13 | struct usb_mixer_elem_list **id_elems; |
| | 14 | |
| | 15 | /* the usb audio specification version this interface complies to */ |
| | 16 | int protocol; |
| | 17 | |
| | 18 | /* Sound Blaster remote control stuff */ |
| | 19 | const struct rc_config *rc_cfg; |
| | 20 | u32 rc_code; |
| | 21 | wait_queue_head_t rc_waitq; |
| | 22 | struct urb *rc_urb; |
| | 23 | struct usb_ctrlrequest *rc_setup_packet; |
| | 24 | u8 rc_buffer[6]; |
| | 25 | }; |
| | 26 | |
| | 27 | #define MAX_CHANNELS 16 /* max logical channels */ |
| | 28 | |
| | 29 | enum { |
| | 30 | USB_MIXER_BOOLEAN, |
| | 31 | USB_MIXER_INV_BOOLEAN, |
| | 32 | USB_MIXER_S8, |
| | 33 | USB_MIXER_U8, |
| | 34 | USB_MIXER_S16, |
| | 35 | USB_MIXER_U16, |
| | 36 | USB_MIXER_S32, |
| | 37 | USB_MIXER_U32, |
| | 38 | }; |
| | 39 | |
| | 40 | typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, |
| | 41 | struct usb_mixer_elem_list *list); |
| | 42 | typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem); |
| | 43 | |
| | 44 | struct usb_mixer_elem_list { |
| | 45 | struct usb_mixer_interface *mixer; |
| | 46 | struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */ |
| | 47 | struct snd_kcontrol *kctl; |
| | 48 | unsigned int id; |
| | 49 | usb_mixer_elem_dump_func_t dump; |
| | 50 | usb_mixer_elem_resume_func_t resume; |
| | 51 | }; |
| | 52 | |
| | 53 | struct usb_mixer_elem_info { |
| | 54 | struct usb_mixer_elem_list head; |
| | 55 | unsigned int control; /* CS or ICN (high byte) */ |
| | 56 | unsigned int cmask; /* channel mask bitmap: 0 = master */ |
| | 57 | unsigned int idx_off; /* Control index offset */ |
| | 58 | unsigned int ch_readonly; |
| | 59 | unsigned int master_readonly; |
| | 60 | int channels; |
| | 61 | int val_type; |
| | 62 | int min, max, res; |
| | 63 | int dBmin, dBmax; |
| | 64 | int cached; |
| | 65 | int cache_val[MAX_CHANNELS]; |
| | 66 | u8 initialized; |
| | 67 | void *private_data; |
| | 68 | }; |
| | 69 | |
| | 70 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
| | 71 | int ignore_error); |
| | 72 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer); |
| | 73 | |
| | 74 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); |
| | 75 | |
| | 76 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
| | 77 | int request, int validx, int value_set); |
| | 78 | |
| | 79 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
| | 80 | struct snd_kcontrol *kctl); |
| | 81 | |
| | 82 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, |
| | 83 | struct usb_mixer_interface *mixer, |
| | 84 | int unitid); |
| | 85 | |
| | 86 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
| | 87 | unsigned int size, unsigned int __user *_tlv); |
| | 88 | |
| | 89 | #ifdef CONFIG_PM |
| | 90 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer); |
| | 91 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume); |
| | 92 | #endif |
| | 93 | |
| | 94 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
| | 95 | int index, int value); |
| | 96 | |
| | 97 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, |
| | 98 | int channel, int index, int *value); |
| | 99 | |
| | 100 | extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl); |
| | 101 | |
| | 102 | #endif /* __USBMIXER_H */ |
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