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[104.229.42.148]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-45c9f35392esm18662881cf.82.2024.09.28.08.09.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Sep 2024 08:09:30 -0700 (PDT) From: crwulff@gmail.com To: linux-usb@vger.kernel.org Cc: Pavel Hofman , Greg Kroah-Hartman , James Gruber , Jeff Johnson , John Keeping , Jonathan Corbet , Lee Jones , Perr Zhang , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Chris Wulff Subject: [PATCH RFC 06/14] usb: gadget: f_uac1: Add terminal type attributes Date: Sat, 28 Sep 2024 11:08:57 -0400 Message-ID: <20240928150905.2616313-7-crwulff@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240928150905.2616313-1-crwulff@gmail.com> References: <20240928150905.2616313-1-crwulff@gmail.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Chris Wulff Allow the user to set the terminal types. This matches the options in f_uac2. Signed-off-by: Chris Wulff --- Documentation/ABI/testing/configfs-usb-gadget-uac1 | 2 ++ Documentation/usb/gadget-testing.rst | 2 ++ drivers/usb/gadget/function/f_uac1.c | 11 +++++++++++ drivers/usb/gadget/function/u_uac1.h | 5 +++++ 4 files changed, 20 insertions(+) diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1 b/Documentation/ABI/testing/configfs-usb-gadget-uac1 index fed8567b10ec..9f7f626329e7 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-uac1 +++ b/Documentation/ABI/testing/configfs-usb-gadget-uac1 @@ -43,4 +43,6 @@ Description: c_it_ch_name capture channels name c_ot_name capture output terminal name c_fu_vol_name capture mute/volume functional unit name + c_terminal_type code of the capture terminal type + p_terminal_type code of the playback terminal type ===================== ======================================= diff --git a/Documentation/usb/gadget-testing.rst b/Documentation/usb/gadget-testing.rst index bdb82b58b260..53c2518dbf50 100644 --- a/Documentation/usb/gadget-testing.rst +++ b/Documentation/usb/gadget-testing.rst @@ -980,6 +980,8 @@ The uac1 function provides these attributes in its function directory: c_it_ch_name capture channels name c_ot_name capture output terminal name c_fu_vol_name capture mute/volume functional unit name + c_terminal_type code of the capture terminal type + p_terminal_type code of the playback terminal type ================ ==================================================== The attributes have sane default values. diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c index 861e6219552e..5813fe3e7146 100644 --- a/drivers/usb/gadget/function/f_uac1.c +++ b/drivers/usb/gadget/function/f_uac1.c @@ -1277,6 +1277,8 @@ static void setup_descriptor(struct f_uac1_opts *opts) as_out_header_desc.bTerminalLink = usb_out_it_desc.bTerminalID; as_in_header_desc.bTerminalLink = usb_in_ot_desc.bTerminalID; + io_in_it_desc.wTerminalType = cpu_to_le16(opts->c_terminal_type); + io_out_ot_desc.wTerminalType = cpu_to_le16(opts->p_terminal_type); ac_header_desc->wTotalLength = cpu_to_le16(ac_header_desc->bLength); if (EPIN_EN(opts)) { @@ -1898,6 +1900,9 @@ UAC1_ATTRIBUTE_STRING(c_it_ch_name); UAC1_ATTRIBUTE_STRING(c_ot_name); UAC1_ATTRIBUTE_STRING(c_fu_vol_name); +UAC1_ATTRIBUTE(s16, p_terminal_type); +UAC1_ATTRIBUTE(s16, c_terminal_type); + static struct configfs_attribute *f_uac1_attrs[] = { &f_uac1_opts_attr_c_chmask, &f_uac1_opts_attr_c_srate, @@ -1935,6 +1940,9 @@ static struct configfs_attribute *f_uac1_attrs[] = { &f_uac1_opts_attr_c_ot_name, &f_uac1_opts_attr_c_fu_vol_name, + &f_uac1_opts_attr_p_terminal_type, + &f_uac1_opts_attr_c_terminal_type, + NULL, }; @@ -2003,6 +2011,9 @@ static struct usb_function_instance *f_audio_alloc_inst(void) scnprintf(opts->c_ot_name, sizeof(opts->c_ot_name), "Playback Output terminal"); scnprintf(opts->c_fu_vol_name, sizeof(opts->c_fu_vol_name), "Playback Volume"); + opts->p_terminal_type = UAC1_DEF_P_TERM_TYPE; + opts->c_terminal_type = UAC1_DEF_C_TERM_TYPE; + return &opts->func_inst; } diff --git a/drivers/usb/gadget/function/u_uac1.h b/drivers/usb/gadget/function/u_uac1.h index c7e7480bf71f..df29018096d3 100644 --- a/drivers/usb/gadget/function/u_uac1.h +++ b/drivers/usb/gadget/function/u_uac1.h @@ -30,6 +30,8 @@ #define UAC1_DEF_MAX_DB 0 /* 0 dB */ #define UAC1_DEF_RES_DB (1*256) /* 1 dB */ +#define UAC1_DEF_P_TERM_TYPE UAC_INPUT_TERMINAL_MICROPHONE +#define UAC1_DEF_C_TERM_TYPE UAC_OUTPUT_TERMINAL_SPEAKER struct f_uac1_opts { struct usb_function_instance func_inst; @@ -71,6 +73,9 @@ struct f_uac1_opts { char c_ot_name[USB_MAX_STRING_LEN]; char c_fu_vol_name[USB_MAX_STRING_LEN]; + s16 p_terminal_type; + s16 c_terminal_type; + struct mutex lock; int refcnt; };