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