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usb: gadget: audio: convert to new interface of f_uac1

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Use the new interface so that the old one can be removed.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz 2014-07-22 19:58:39 +02:00 committed by Felipe Balbi
parent f3a3406b3f
commit 0d992dec96
2 changed files with 64 additions and 6 deletions
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1
drivers/usb/gadget/legacy/Kconfig
View File

@ -54,6 +54,7 @@ config USB_AUDIO
depends on SND
select USB_LIBCOMPOSITE
select SND_PCM
select USB_F_UAC1 if GADGET_UAC1
select USB_F_UAC2 if !GADGET_UAC1
help
This Gadget Audio driver is compatible with USB Audio Class

69
drivers/usb/gadget/legacy/audio.c
View File

@ -53,6 +53,35 @@ MODULE_PARM_DESC(c_srate, "Capture Sampling Rate");
static int c_ssize = UAC2_DEF_CSSIZE;
module_param(c_ssize, uint, S_IRUGO);
MODULE_PARM_DESC(c_ssize, "Capture Sample Size(bytes)");
#else
#define FILE_PCM_PLAYBACK "/dev/snd/pcmC0D0p"
#define FILE_PCM_CAPTURE "/dev/snd/pcmC0D0c"
#define FILE_CONTROL "/dev/snd/controlC0"
static char *fn_play = FILE_PCM_PLAYBACK;
module_param(fn_play, charp, S_IRUGO);
MODULE_PARM_DESC(fn_play, "Playback PCM device file name");
static char *fn_cap = FILE_PCM_CAPTURE;
module_param(fn_cap, charp, S_IRUGO);
MODULE_PARM_DESC(fn_cap, "Capture PCM device file name");
static char *fn_cntl = FILE_CONTROL;
module_param(fn_cntl, charp, S_IRUGO);
MODULE_PARM_DESC(fn_cntl, "Control device file name");
#define OUT_EP_MAX_PACKET_SIZE 200
static int req_buf_size = OUT_EP_MAX_PACKET_SIZE;
module_param(req_buf_size, int, S_IRUGO);
MODULE_PARM_DESC(req_buf_size, "ISO OUT endpoint request buffer size");
static int req_count = 256;
module_param(req_count, int, S_IRUGO);
MODULE_PARM_DESC(req_count, "ISO OUT endpoint request count");
static int audio_buf_size = 48000;
module_param(audio_buf_size, int, S_IRUGO);
MODULE_PARM_DESC(audio_buf_size, "Audio buffer size");
#endif
/* string IDs are assigned dynamically */
@ -77,12 +106,13 @@ static struct usb_gadget_strings *audio_strings[] = {
#ifndef CONFIG_GADGET_UAC1
static struct usb_function_instance *fi_uac2;
static struct usb_function *f_uac2;
#else
static struct usb_function_instance *fi_uac1;
static struct usb_function *f_uac1;
#endif
#ifdef CONFIG_GADGET_UAC1
#define USBF_UAC1_INCLUDED
#include "u_uac1.h"
#include "f_uac1.c"
#endif
/*-------------------------------------------------------------------------*/
@ -146,9 +176,7 @@ static const struct usb_descriptor_header *otg_desc[] = {
static int __init audio_do_config(struct usb_configuration *c)
{
#ifndef CONFIG_GADGET_UAC1
int status;
#endif
/* FIXME alloc iConfiguration string, set it in c->strings */
@ -158,7 +186,17 @@ static int __init audio_do_config(struct usb_configuration *c)
}
#ifdef CONFIG_GADGET_UAC1
audio_bind_config(c);
f_uac1 = usb_get_function(fi_uac1);
if (IS_ERR(f_uac1)) {
status = PTR_ERR(f_uac1);
return status;
}
status = usb_add_function(c, f_uac1);
if (status < 0) {
usb_put_function(f_uac1);
return status;
}
#else
f_uac2 = usb_get_function(fi_uac2);
if (IS_ERR(f_uac2)) {
@ -189,6 +227,8 @@ static int __init audio_bind(struct usb_composite_dev *cdev)
{
#ifndef CONFIG_GADGET_UAC1
struct f_uac2_opts *uac2_opts;
#else
struct f_uac1_opts *uac1_opts;
#endif
int status;
@ -196,6 +236,10 @@ static int __init audio_bind(struct usb_composite_dev *cdev)
fi_uac2 = usb_get_function_instance("uac2");
if (IS_ERR(fi_uac2))
return PTR_ERR(fi_uac2);
#else
fi_uac1 = usb_get_function_instance("uac1");
if (IS_ERR(fi_uac1))
return PTR_ERR(fi_uac1);
#endif
#ifndef CONFIG_GADGET_UAC1
@ -206,6 +250,14 @@ static int __init audio_bind(struct usb_composite_dev *cdev)
uac2_opts->c_chmask = c_chmask;
uac2_opts->c_srate = c_srate;
uac2_opts->c_ssize = c_ssize;
#else
uac1_opts = container_of(fi_uac1, struct f_uac1_opts, func_inst);
uac1_opts->fn_play = fn_play;
uac1_opts->fn_cap = fn_cap;
uac1_opts->fn_cntl = fn_cntl;
uac1_opts->req_buf_size = req_buf_size;
uac1_opts->req_count = req_count;
uac1_opts->audio_buf_size = audio_buf_size;
#endif
status = usb_string_ids_tab(cdev, strings_dev);
@ -225,6 +277,8 @@ static int __init audio_bind(struct usb_composite_dev *cdev)
fail:
#ifndef CONFIG_GADGET_UAC1
usb_put_function_instance(fi_uac2);
#else
usb_put_function_instance(fi_uac1);
#endif
return status;
}
@ -232,7 +286,10 @@ fail:
static int __exit audio_unbind(struct usb_composite_dev *cdev)
{
#ifdef CONFIG_GADGET_UAC1
gaudio_cleanup();
if (!IS_ERR_OR_NULL(f_uac1))
usb_put_function(f_uac1);
if (!IS_ERR_OR_NULL(fi_uac1))
usb_put_function_instance(fi_uac1);
#else
if (!IS_ERR_OR_NULL(f_uac2))
usb_put_function(f_uac2);