Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Daniel Mack | 3e1aebe | 2010-03-04 19:46:12 +0100 | [diff] [blame] | 2 | #ifndef __USBMIXER_H |
| 3 | #define __USBMIXER_H |
| 4 | |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 5 | #include <sound/info.h> |
| 6 | |
Shuah Khan | 66354f1 | 2019-04-01 20:40:22 -0400 | [diff] [blame] | 7 | struct media_mixer_ctl; |
| 8 | |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 9 | struct usb_mixer_interface { |
| 10 | struct snd_usb_audio *chip; |
Daniel Mack | 1faa5d0 | 2011-08-04 15:56:28 +0200 | [diff] [blame] | 11 | struct usb_host_interface *hostif; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 12 | struct list_head list; |
| 13 | unsigned int ignore_ctl_error; |
| 14 | struct urb *urb; |
| 15 | /* array[MAX_ID_ELEMS], indexed by unit id */ |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 16 | struct usb_mixer_elem_list **id_elems; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 17 | |
Daniel Mack | 23caaf1 | 2010-03-11 21:13:25 +0100 | [diff] [blame] | 18 | /* the usb audio specification version this interface complies to */ |
| 19 | int protocol; |
| 20 | |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 21 | /* Sound Blaster remote control stuff */ |
| 22 | const struct rc_config *rc_cfg; |
| 23 | u32 rc_code; |
| 24 | wait_queue_head_t rc_waitq; |
| 25 | struct urb *rc_urb; |
| 26 | struct usb_ctrlrequest *rc_setup_packet; |
| 27 | u8 rc_buffer[6]; |
Shuah Khan | 66354f1 | 2019-04-01 20:40:22 -0400 | [diff] [blame] | 28 | struct media_mixer_ctl *media_mixer_ctl; |
Takashi Iwai | 124751d | 2017-10-10 14:10:32 +0200 | [diff] [blame] | 29 | |
| 30 | bool disconnected; |
Geoffrey D. Bennett | 9e4d5c1 | 2019-07-29 00:42:45 +0930 | [diff] [blame] | 31 | |
| 32 | void *private_data; |
| 33 | void (*private_free)(struct usb_mixer_interface *mixer); |
| 34 | void (*private_suspend)(struct usb_mixer_interface *mixer); |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 35 | }; |
| 36 | |
Daniel Mack | 9e38658 | 2011-05-25 09:09:01 +0200 | [diff] [blame] | 37 | #define MAX_CHANNELS 16 /* max logical channels */ |
| 38 | |
| 39 | enum { |
| 40 | USB_MIXER_BOOLEAN, |
| 41 | USB_MIXER_INV_BOOLEAN, |
| 42 | USB_MIXER_S8, |
| 43 | USB_MIXER_U8, |
| 44 | USB_MIXER_S16, |
| 45 | USB_MIXER_U16, |
Julian Scheel | bc18e31 | 2015-08-14 16:14:45 +0200 | [diff] [blame] | 46 | USB_MIXER_S32, |
| 47 | USB_MIXER_U32, |
Daniel Mack | 9e38658 | 2011-05-25 09:09:01 +0200 | [diff] [blame] | 48 | }; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 49 | |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 50 | typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, |
| 51 | struct usb_mixer_elem_list *list); |
| 52 | typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem); |
| 53 | |
| 54 | struct usb_mixer_elem_list { |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 55 | struct usb_mixer_interface *mixer; |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 56 | struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */ |
| 57 | struct snd_kcontrol *kctl; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 58 | unsigned int id; |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 59 | usb_mixer_elem_dump_func_t dump; |
| 60 | usb_mixer_elem_resume_func_t resume; |
| 61 | }; |
| 62 | |
Takashi Iwai | 8c55807 | 2018-05-03 12:33:32 +0200 | [diff] [blame] | 63 | /* iterate over mixer element list of the given unit id */ |
| 64 | #define for_each_mixer_elem(list, mixer, id) \ |
| 65 | for ((list) = (mixer)->id_elems[id]; (list); (list) = (list)->next_id_elem) |
| 66 | #define mixer_elem_list_to_info(list) \ |
| 67 | container_of(list, struct usb_mixer_elem_info, head) |
| 68 | |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 69 | struct usb_mixer_elem_info { |
| 70 | struct usb_mixer_elem_list head; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 71 | unsigned int control; /* CS or ICN (high byte) */ |
| 72 | unsigned int cmask; /* channel mask bitmap: 0 = master */ |
Eldad Zack | 9f81410 | 2012-11-28 23:55:35 +0100 | [diff] [blame] | 73 | unsigned int idx_off; /* Control index offset */ |
Daniel Mack | a6a3325 | 2010-05-31 13:35:37 +0200 | [diff] [blame] | 74 | unsigned int ch_readonly; |
| 75 | unsigned int master_readonly; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 76 | int channels; |
| 77 | int val_type; |
| 78 | int min, max, res; |
| 79 | int dBmin, dBmax; |
| 80 | int cached; |
| 81 | int cache_val[MAX_CHANNELS]; |
| 82 | u8 initialized; |
Takashi Iwai | 0f174b3 | 2017-08-16 14:18:37 +0200 | [diff] [blame] | 83 | u8 min_mute; |
Chris J Arges | f41d604 | 2014-11-12 12:07:00 -0600 | [diff] [blame] | 84 | void *private_data; |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 85 | }; |
| 86 | |
Daniel Mack | 3e1aebe | 2010-03-04 19:46:12 +0100 | [diff] [blame] | 87 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
| 88 | int ignore_error); |
Takashi Iwai | a6cece9 | 2014-10-31 11:24:32 +0100 | [diff] [blame] | 89 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer); |
Daniel Mack | 3e1aebe | 2010-03-04 19:46:12 +0100 | [diff] [blame] | 90 | |
Daniel Mack | 7b1eda2 | 2010-03-11 21:13:22 +0100 | [diff] [blame] | 91 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); |
| 92 | |
| 93 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
| 94 | int request, int validx, int value_set); |
Daniel Mack | 3e1aebe | 2010-03-04 19:46:12 +0100 | [diff] [blame] | 95 | |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 96 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
Daniel Mack | ef9d597 | 2011-05-25 09:09:00 +0200 | [diff] [blame] | 97 | struct snd_kcontrol *kctl); |
| 98 | |
Takashi Iwai | 3360b84 | 2014-11-18 11:47:04 +0100 | [diff] [blame] | 99 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, |
| 100 | struct usb_mixer_interface *mixer, |
| 101 | int unitid); |
| 102 | |
Felix Homann | 285de9c | 2012-04-23 20:24:24 +0200 | [diff] [blame] | 103 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
| 104 | unsigned int size, unsigned int __user *_tlv); |
| 105 | |
Takashi Iwai | 400362f | 2014-01-20 16:51:16 +0100 | [diff] [blame] | 106 | #ifdef CONFIG_PM |
| 107 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer); |
| 108 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume); |
| 109 | #endif |
| 110 | |
Chris J Arges | eef9045 | 2014-11-12 12:07:01 -0600 | [diff] [blame] | 111 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
| 112 | int index, int value); |
| 113 | |
| 114 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, |
| 115 | int channel, int index, int *value); |
| 116 | |
| 117 | extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl); |
| 118 | |
Takashi Iwai | 00966dc | 2018-07-25 23:00:53 +0200 | [diff] [blame] | 119 | extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl; |
| 120 | |
Daniel Mack | 3e1aebe | 2010-03-04 19:46:12 +0100 | [diff] [blame] | 121 | #endif /* __USBMIXER_H */ |