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-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-uac211
-rw-r--r--Documentation/usb/gadget-testing.rst11
-rw-r--r--drivers/usb/gadget/function/f_uac2.c80
-rw-r--r--drivers/usb/gadget/function/u_uac2.h15
4 files changed, 99 insertions, 18 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac2 b/Documentation/ABI/testing/configfs-usb-gadget-uac2
index a2bf4fd82a5b..133e995c3e92 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uac2
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac2
@@ -35,6 +35,17 @@ Description:
req_number the number of pre-allocated requests
for both capture and playback
function_name name of the interface
+ if_ctrl_name topology control name
+ clksrc_in_name input clock name
+ clksrc_out_name output clock name
+ p_it_name playback input terminal name
+ p_it_ch_name playback input first channel name
+ p_ot_name playback output terminal name
+ p_fu_vol_name playback mute/volume function unit name
+ c_it_name capture input terminal name
+ c_it_ch_name capture input first channel 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 a89b49e639c3..8092e250ec27 100644
--- a/Documentation/usb/gadget-testing.rst
+++ b/Documentation/usb/gadget-testing.rst
@@ -765,6 +765,17 @@ The uac2 function provides these attributes in its function directory:
req_number the number of pre-allocated request for both capture
and playback
function_name name of the interface
+ if_ctrl_name topology control name
+ clksrc_in_name input clock name
+ clksrc_out_name output clock name
+ p_it_name playback input terminal name
+ p_it_ch_name playback input first channel name
+ p_ot_name playback output terminal name
+ p_fu_vol_name playback function unit name
+ c_it_name capture input terminal name
+ c_it_ch_name capture input first channel name
+ c_ot_name capture output terminal name
+ c_fu_vol_name capture functional unit name
c_terminal_type code of the capture terminal type
p_terminal_type code of the playback terminal type
================ ====================================================
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 2d6d3286ffde..1cdda44455b3 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -95,7 +95,9 @@ enum {
STR_CLKSRC_IN,
STR_CLKSRC_OUT,
STR_USB_IT,
+ STR_USB_IT_CH,
STR_IO_IT,
+ STR_IO_IT_CH,
STR_USB_OT,
STR_IO_OT,
STR_FU_IN,
@@ -104,25 +106,10 @@ enum {
STR_AS_OUT_ALT1,
STR_AS_IN_ALT0,
STR_AS_IN_ALT1,
+ NUM_STR_DESCRIPTORS,
};
-static struct usb_string strings_fn[] = {
- /* [STR_ASSOC].s = DYNAMIC, */
- [STR_IF_CTRL].s = "Topology Control",
- [STR_CLKSRC_IN].s = "Input Clock",
- [STR_CLKSRC_OUT].s = "Output Clock",
- [STR_USB_IT].s = "USBH Out",
- [STR_IO_IT].s = "USBD Out",
- [STR_USB_OT].s = "USBH In",
- [STR_IO_OT].s = "USBD In",
- [STR_FU_IN].s = "Capture Volume",
- [STR_FU_OUT].s = "Playback Volume",
- [STR_AS_OUT_ALT0].s = "Playback Inactive",
- [STR_AS_OUT_ALT1].s = "Playback Active",
- [STR_AS_IN_ALT0].s = "Capture Inactive",
- [STR_AS_IN_ALT1].s = "Capture Active",
- { },
-};
+static struct usb_string strings_fn[NUM_STR_DESCRIPTORS + 1] = {};
static const char *const speed_names[] = {
[USB_SPEED_UNKNOWN] = "UNKNOWN",
@@ -1049,6 +1036,23 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
return ret;
strings_fn[STR_ASSOC].s = uac2_opts->function_name;
+ strings_fn[STR_IF_CTRL].s = uac2_opts->if_ctrl_name;
+ strings_fn[STR_CLKSRC_IN].s = uac2_opts->clksrc_in_name;
+ strings_fn[STR_CLKSRC_OUT].s = uac2_opts->clksrc_out_name;
+
+ strings_fn[STR_USB_IT].s = uac2_opts->c_it_name;
+ strings_fn[STR_USB_IT_CH].s = uac2_opts->c_it_ch_name;
+ strings_fn[STR_IO_OT].s = uac2_opts->c_ot_name;
+ strings_fn[STR_FU_OUT].s = uac2_opts->c_fu_vol_name;
+ strings_fn[STR_AS_OUT_ALT0].s = "Playback Inactive";
+ strings_fn[STR_AS_OUT_ALT1].s = "Playback Active";
+
+ strings_fn[STR_IO_IT].s = uac2_opts->p_it_name;
+ strings_fn[STR_IO_IT_CH].s = uac2_opts->p_it_ch_name;
+ strings_fn[STR_USB_OT].s = uac2_opts->p_ot_name;
+ strings_fn[STR_FU_IN].s = uac2_opts->p_fu_vol_name;
+ strings_fn[STR_AS_IN_ALT0].s = "Capture Inactive";
+ strings_fn[STR_AS_IN_ALT1].s = "Capture Active";
us = usb_gstrings_attach(cdev, fn_strings, ARRAY_SIZE(strings_fn));
if (IS_ERR(us))
@@ -1072,7 +1076,9 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
in_clk_src_desc.iClockSource = us[STR_CLKSRC_IN].id;
out_clk_src_desc.iClockSource = us[STR_CLKSRC_OUT].id;
usb_out_it_desc.iTerminal = us[STR_USB_IT].id;
+ usb_out_it_desc.iChannelNames = us[STR_USB_IT_CH].id;
io_in_it_desc.iTerminal = us[STR_IO_IT].id;
+ io_in_it_desc.iChannelNames = us[STR_IO_IT_CH].id;
usb_in_ot_desc.iTerminal = us[STR_USB_OT].id;
io_out_ot_desc.iTerminal = us[STR_IO_OT].id;
std_as_out_if0_desc.iInterface = us[STR_AS_OUT_ALT0].id;
@@ -2100,10 +2106,24 @@ UAC2_ATTRIBUTE(s16, c_volume_max);
UAC2_ATTRIBUTE(s16, c_volume_res);
UAC2_ATTRIBUTE(u32, fb_max);
UAC2_ATTRIBUTE_STRING(function_name);
+UAC2_ATTRIBUTE_STRING(if_ctrl_name);
+UAC2_ATTRIBUTE_STRING(clksrc_in_name);
+UAC2_ATTRIBUTE_STRING(clksrc_out_name);
+
+UAC2_ATTRIBUTE_STRING(p_it_name);
+UAC2_ATTRIBUTE_STRING(p_it_ch_name);
+UAC2_ATTRIBUTE_STRING(p_ot_name);
+UAC2_ATTRIBUTE_STRING(p_fu_vol_name);
+
+UAC2_ATTRIBUTE_STRING(c_it_name);
+UAC2_ATTRIBUTE_STRING(c_it_ch_name);
+UAC2_ATTRIBUTE_STRING(c_ot_name);
+UAC2_ATTRIBUTE_STRING(c_fu_vol_name);
UAC2_ATTRIBUTE(s16, p_terminal_type);
UAC2_ATTRIBUTE(s16, c_terminal_type);
+
static struct configfs_attribute *f_uac2_attrs[] = {
&f_uac2_opts_attr_p_chmask,
&f_uac2_opts_attr_p_srate,
@@ -2130,6 +2150,19 @@ static struct configfs_attribute *f_uac2_attrs[] = {
&f_uac2_opts_attr_c_volume_res,
&f_uac2_opts_attr_function_name,
+ &f_uac2_opts_attr_if_ctrl_name,
+ &f_uac2_opts_attr_clksrc_in_name,
+ &f_uac2_opts_attr_clksrc_out_name,
+
+ &f_uac2_opts_attr_p_it_name,
+ &f_uac2_opts_attr_p_it_ch_name,
+ &f_uac2_opts_attr_p_ot_name,
+ &f_uac2_opts_attr_p_fu_vol_name,
+
+ &f_uac2_opts_attr_c_it_name,
+ &f_uac2_opts_attr_c_it_ch_name,
+ &f_uac2_opts_attr_c_ot_name,
+ &f_uac2_opts_attr_c_fu_vol_name,
&f_uac2_opts_attr_p_terminal_type,
&f_uac2_opts_attr_c_terminal_type,
@@ -2191,6 +2224,19 @@ static struct usb_function_instance *afunc_alloc_inst(void)
opts->fb_max = FBACK_FAST_MAX;
scnprintf(opts->function_name, sizeof(opts->function_name), "Source/Sink");
+ scnprintf(opts->if_ctrl_name, sizeof(opts->if_ctrl_name), "Topology Control");
+ scnprintf(opts->clksrc_in_name, sizeof(opts->clksrc_in_name), "Input Clock");
+ scnprintf(opts->clksrc_out_name, sizeof(opts->clksrc_out_name), "Output Clock");
+
+ scnprintf(opts->p_it_name, sizeof(opts->p_it_name), "USBD Out");
+ scnprintf(opts->p_it_ch_name, sizeof(opts->p_it_ch_name), "Capture Channels");
+ scnprintf(opts->p_ot_name, sizeof(opts->p_ot_name), "USBH In");
+ scnprintf(opts->p_fu_vol_name, sizeof(opts->p_fu_vol_name), "Capture Volume");
+
+ scnprintf(opts->c_it_name, sizeof(opts->c_it_name), "USBH Out");
+ scnprintf(opts->c_it_ch_name, sizeof(opts->c_it_ch_name), "Playback Channels");
+ scnprintf(opts->c_ot_name, sizeof(opts->c_ot_name), "USBD In");
+ scnprintf(opts->c_fu_vol_name, sizeof(opts->c_fu_vol_name), "Playback Volume");
opts->p_terminal_type = UAC2_DEF_P_TERM_TYPE;
opts->c_terminal_type = UAC2_DEF_C_TERM_TYPE;
diff --git a/drivers/usb/gadget/function/u_uac2.h b/drivers/usb/gadget/function/u_uac2.h
index 5e81bdd6c5fb..0df808289ded 100644
--- a/drivers/usb/gadget/function/u_uac2.h
+++ b/drivers/usb/gadget/function/u_uac2.h
@@ -68,7 +68,20 @@ struct f_uac2_opts {
int fb_max;
bool bound;
- char function_name[32];
+ char function_name[USB_MAX_STRING_LEN];
+ char if_ctrl_name[USB_MAX_STRING_LEN];
+ char clksrc_in_name[USB_MAX_STRING_LEN];
+ char clksrc_out_name[USB_MAX_STRING_LEN];
+
+ char p_it_name[USB_MAX_STRING_LEN];
+ char p_it_ch_name[USB_MAX_STRING_LEN];
+ char p_ot_name[USB_MAX_STRING_LEN];
+ char p_fu_vol_name[USB_MAX_STRING_LEN];
+
+ char c_it_name[USB_MAX_STRING_LEN];
+ char c_it_ch_name[USB_MAX_STRING_LEN];
+ 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;