diff options
Diffstat (limited to 'drivers/usb/gadget/function/u_uac1.h')
| -rw-r--r-- | drivers/usb/gadget/function/u_uac1.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/u_uac1.h b/drivers/usb/gadget/function/u_uac1.h new file mode 100644 index 000000000..f7a616760 --- /dev/null +++ b/drivers/usb/gadget/function/u_uac1.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * u_uac1.h - Utility definitions for UAC1 function + * + * Copyright (C) 2016 Ruslan Bilovol <ruslan.bilovol@gmail.com> + */ + +#ifndef __U_UAC1_H +#define __U_UAC1_H + +#include <linux/usb/composite.h> +#include "uac_common.h" + +#define UAC1_OUT_EP_MAX_PACKET_SIZE 200 +#define UAC1_DEF_CCHMASK 0x3 +#define UAC1_DEF_CSRATE 48000 +#define UAC1_DEF_CSSIZE 2 +#define UAC1_DEF_PCHMASK 0x3 +#define UAC1_DEF_PSRATE 48000 +#define UAC1_DEF_PSSIZE 2 +#define UAC1_DEF_REQ_NUM 2 +#define UAC1_DEF_INT_REQ_NUM 10 + +#define UAC1_DEF_MUTE_PRESENT 1 +#define UAC1_DEF_VOLUME_PRESENT 1 +#define UAC1_DEF_MIN_DB (-100*256) /* -100 dB */ +#define UAC1_DEF_MAX_DB 0 /* 0 dB */ +#define UAC1_DEF_RES_DB (1*256) /* 1 dB */ + + +struct f_uac1_opts { + struct usb_function_instance func_inst; + int c_chmask; + int c_srates[UAC_MAX_RATES]; + int c_ssize; + int p_chmask; + int p_srates[UAC_MAX_RATES]; + int p_ssize; + + bool p_mute_present; + bool p_volume_present; + s16 p_volume_min; + s16 p_volume_max; + s16 p_volume_res; + + bool c_mute_present; + bool c_volume_present; + s16 c_volume_min; + s16 c_volume_max; + s16 c_volume_res; + + int req_number; + unsigned bound:1; + + char function_name[32]; + + struct mutex lock; + int refcnt; +}; + +#endif /* __U_UAC1_H */ |