rusefi
/
AT32F435_437_Firmware_Library
mirror of https://github.com/rusefi/AT32F435_437_Firmware_Library.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
AT32F435_437_Firmware_Library/middlewares/usbd_class/audio/audio_class.c

686 lines
20 KiB
C
Raw Blame History

/**
**************************************************************************
* @file audio_class.c
* @version v2.0.9
* @date 2022-06-28
* @brief usb audio class type
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
#include "usbd_core.h"
#include "audio_class.h"
#include "audio_desc.h"
#include "audio_codec.h"
/** @addtogroup AT32F435_437_middlewares_usbd_class
* @{
*/
/** @defgroup USB_audio_class
* @brief usb device class audio demo
* @{
*/
/** @defgroup USB_audio_class_private_functions
* @{
*/
static usb_sts_type class_init_handler(void *udev);
static usb_sts_type class_clear_handler(void *udev);
static usb_sts_type class_setup_handler(void *udev, usb_setup_type *setup);
static usb_sts_type class_ept0_tx_handler(void *udev);
static usb_sts_type class_ept0_rx_handler(void *udev);
static usb_sts_type class_in_handler(void *udev, uint8_t ept_num);
static usb_sts_type class_out_handler(void *udev, uint8_t ept_num);
static usb_sts_type class_sof_handler(void *udev);
static usb_sts_type class_event_handler(void *udev, usbd_event_type event);
static void audio_inisoincom_event(void *udev);
static void audio_req_get_cur(void *udev, usb_setup_type *setup);
static void audio_req_set_cur(void *udev, usb_setup_type *setup);
static void audio_req_get_min(void *udev, usb_setup_type *setup);
static void audio_req_get_max(void *udev, usb_setup_type *setup);
static void audio_req_get_res(void *udev, usb_setup_type *setup);
static void audio_get_interface(void *udev, usb_setup_type *setup);
static void audio_set_interface(void *udev, usb_setup_type *setup);
usb_audio_type audio_struct = {0, 0, 0, 0, 0, 0x1400, 0, 0, 0, {0x0000, 0x1400, 0x33}, {0x0000, 0x1400, 0x33}, 0, 0};
/* usb device class handler */
usbd_class_handler audio_class_handler =
{
class_init_handler,
class_clear_handler,
class_setup_handler,
class_ept0_tx_handler,
class_ept0_rx_handler,
class_in_handler,
class_out_handler,
class_sof_handler,
class_event_handler,
&audio_struct
};
/**
* @brief initialize usb custom hid endpoint
* @param udev: usb device core handler type
* @retval status of usb_sts_type
*/
static usb_sts_type class_init_handler(void *udev)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
/* open microphone in endpoint */
usbd_ept_open(pudev, USBD_AUDIO_MIC_IN_EPT, EPT_ISO_TYPE, AUDIO_MIC_IN_MAXPACKET_SIZE);
/* open speaker out endpoint */
usbd_ept_open(pudev, USBD_AUDIO_SPK_OUT_EPT, EPT_ISO_TYPE, AUDIO_SPK_OUT_MAXPACKET_SIZE);
#if AUDIO_SUPPORT_FEEDBACK
/* open speaker feedback endpoint */
usbd_ept_open(pudev, USBD_AUDIO_FEEDBACK_EPT, EPT_ISO_TYPE, AUDIO_FEEDBACK_MAXPACKET_SIZE);
#endif
/* start receive speaker out data */
usbd_ept_recv(pudev, USBD_AUDIO_SPK_OUT_EPT, paudio->audio_spk_data, AUDIO_SPK_OUT_MAXPACKET_SIZE);
return status;
}
/**
* @brief clear endpoint or other state
* @param udev: usb device core handler type
* @retval status of usb_sts_type
*/
static usb_sts_type class_clear_handler(void *udev)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
/* close in endpoint */
usbd_ept_close(pudev, USBD_AUDIO_MIC_IN_EPT);
#if AUDIO_SUPPORT_FEEDBACK
/* close in endpoint */
usbd_ept_close(pudev, USBD_AUDIO_FEEDBACK_EPT);
#endif
/* close out endpoint */
usbd_ept_close(pudev, USBD_AUDIO_SPK_OUT_EPT);
return status;
}
/**
* @brief usb device class setup request handler
* @param udev: usb device core handler type
* @param setup: setup packet
* @retval status of usb_sts_type
*/
static usb_sts_type class_setup_handler(void *udev, usb_setup_type *setup)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
uint16_t len;
switch(setup->bmRequestType & USB_REQ_TYPE_RESERVED)
{
/* class request */
case USB_REQ_TYPE_CLASS:
switch(setup->bRequest)
{
case AUDIO_REQ_GET_CUR:
audio_req_get_cur(pudev, setup);
break;
case AUDIO_REQ_SET_CUR:
audio_req_set_cur(pudev, setup);
break;
case AUDIO_REQ_GET_MIN:
audio_req_get_min(pudev, setup);
break;
case AUDIO_REQ_GET_MAX:
audio_req_get_max(pudev, setup);
break;
case AUDIO_REQ_GET_RES:
audio_req_get_res(pudev, setup);
break;
default:
usbd_ctrl_unsupport(pudev);
break;
}
break;
/* standard request */
case USB_REQ_TYPE_STANDARD:
switch(setup->bRequest)
{
case USB_STD_REQ_GET_DESCRIPTOR:
if((setup->wValue >> 8) == AUDIO_DESCRIPTOR_TYPE)
{
usbd_desc_t *config = pudev->desc_handler->get_device_configuration();
len = MIN(AUDIO_DESCRIPTOR_SIZE, setup->wLength);
usbd_ctrl_send(pudev, config->descriptor + 18, len);
}
else
{
usbd_ctrl_unsupport(pudev);
}
break;
case USB_STD_REQ_GET_INTERFACE:
audio_get_interface(udev, setup);
break;
case USB_STD_REQ_SET_INTERFACE:
audio_set_interface(udev, setup);
usbd_ctrl_send_status(pudev);
break;
default:
break;
}
break;
default:
usbd_ctrl_unsupport(pudev);
break;
}
return status;
}
/**
* @brief usb device endpoint 0 in status stage complete
* @param udev: usb device core handler type
* @retval status of usb_sts_type
*/
static usb_sts_type class_ept0_tx_handler(void *udev)
{
usb_sts_type status = USB_OK;
/* ...user code... */
return status;
}
/**
* @brief usb device endpoint 0 out status stage complete
* @param udev: usb device core handler type
* @retval status of usb_sts_type
*/
static usb_sts_type class_ept0_rx_handler(void *udev)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
uint32_t recv_len = usbd_get_recv_len(pudev, 0);
/* ...user code... */
if( paudio->audio_cmd == AUDIO_REQ_SET_CUR)
{
/* class process */
switch( paudio->request_no)
{
case AUDIO_VOLUME_CONTROL:
if( paudio->interface == AUDIO_SPK_FEATURE_UNIT_ID)
{
paudio->spk_volume = (uint16_t)( paudio->g_audio_cur[0] |
( paudio->g_audio_cur[1] << 8));
/* set volume */
audio_codec_set_spk_volume(paudio->spk_volume*100/paudio->spk_volume_limits[1]);
}
else
{
paudio->mic_volume = (uint16_t)(paudio->g_audio_cur[0] |
(paudio->g_audio_cur[1] << 8));
audio_codec_set_mic_volume(paudio->mic_volume*256/paudio->mic_volume_limits[1]);
}
break;
case AUDIO_MUTE_CONTROL:
if(paudio->interface == AUDIO_SPK_FEATURE_UNIT_ID)
{
paudio->spk_mute = paudio->g_audio_cur[0];
audio_codec_set_spk_mute(paudio->spk_mute);
}
else
{
paudio->mic_mute = paudio->g_audio_cur[0];
audio_codec_set_mic_mute(paudio->mic_mute);
}
break;
case AUDIO_FREQ_SET_CONTROL:
if(paudio->enpd == USBD_AUDIO_MIC_IN_EPT)
{
paudio->mic_freq = (paudio->g_audio_cur[0] |
(paudio->g_audio_cur[1] << 8) |
(paudio->g_audio_cur[2] << 16));
audio_codec_set_mic_freq(paudio->mic_freq);
}
else
{
paudio->spk_freq = (paudio->g_audio_cur[0] |
(paudio->g_audio_cur[1] << 8) |
(paudio->g_audio_cur[2] << 16));
audio_codec_set_spk_freq(paudio->spk_freq);
}
break;
default:
break;
}
}
return status;
}
/**
* @brief usb device transmision complete handler
* @param udev: usb device core handler type
* @param ept_num: endpoint number
* @retval status of usb_sts_type
*/
static usb_sts_type class_in_handler(void *udev, uint8_t ept_num)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
uint32_t len = 0;
/* ...user code...
trans next packet data
*/
if((ept_num & 0x7F) == (USBD_AUDIO_MIC_IN_EPT & 0x7F))
{
len = audio_codec_mic_get_data(paudio->audio_mic_data);
usbd_flush_tx_fifo(udev, USBD_AUDIO_MIC_IN_EPT);
usbd_ept_send(udev, USBD_AUDIO_MIC_IN_EPT, paudio->audio_mic_data, len);
}
else if((ept_num & 0x7F) == (USBD_AUDIO_FEEDBACK_EPT & 0x7F))
{
paudio->audio_feedback_state = 0;
}
return status;
}
/**
* @brief usb device endpoint receive data
* @param udev: usb device core handler type
* @param ept_num: endpoint number
* @retval status of usb_sts_type
*/
static usb_sts_type class_out_handler(void *udev, uint8_t ept_num)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
uint16_t g_rxlen;
/* get endpoint receive data length */
g_rxlen = usbd_get_recv_len(pudev, ept_num);
if((ept_num & 0x7F) == (USBD_AUDIO_SPK_OUT_EPT & 0x7F))
{
/* speaker data*/
audio_codec_spk_fifo_write(paudio->audio_spk_data, g_rxlen);
paudio->audio_spk_out_stage = 1;
/* get next data */
usbd_ept_recv(pudev, USBD_AUDIO_SPK_OUT_EPT, paudio->audio_spk_data, AUDIO_SPK_OUT_MAXPACKET_SIZE);
}
return status;
}
/**
* @brief usb device sof handler
* @param udev: usb device core handler type
* @retval status of usb_sts_type
*/
static usb_sts_type class_sof_handler(void *udev)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
#if AUDIO_SUPPORT_FEEDBACK
if(paudio->audio_spk_out_stage & 2)
{
paudio->audio_spk_out_stage = 0;
}
else if( paudio->audio_spk_out_stage )
{
paudio->audio_spk_out_stage |= 2;
if( 0 == paudio->audio_feedback_state )
{
usbd_core_type *pudev = (usbd_core_type *)udev;
int len = audio_codec_spk_feedback(paudio->audio_feed_back);
usbd_ept_send(pudev, USBD_AUDIO_FEEDBACK_EPT, paudio->audio_feed_back, len);
paudio->audio_feedback_state = 1;
}
if( paudio->audio_feedback_state++ > (1<<FEEDBACK_REFRESH_TIME) ) //timeout
{
usbd_core_type *pudev = (usbd_core_type *)udev;
int len = audio_codec_spk_feedback(paudio->audio_feed_back);
usbd_flush_tx_fifo(pudev, USBD_AUDIO_FEEDBACK_EPT);
usbd_ept_send(pudev, USBD_AUDIO_FEEDBACK_EPT, paudio->audio_feed_back, len);
paudio->audio_feedback_state = 1;
}
}
#endif
/* ...user code... */
return status;
}
/**
* @brief usb device event handler
* @param udev: usb device core handler type
* @param event: usb device event
* @retval status of usb_sts_type
*/
static usb_sts_type class_event_handler(void *udev, usbd_event_type event)
{
usb_sts_type status = USB_OK;
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
switch(event)
{
case USBD_RESET_EVENT:
/* ...user code... */
break;
case USBD_SUSPEND_EVENT:
paudio->spk_alt_setting = 0;
audio_codec_spk_alt_setting(paudio->spk_alt_setting);
paudio->mic_alt_setting = 0;
audio_codec_mic_alt_setting(paudio->spk_alt_setting);
/* ...user code... */
break;
case USBD_WAKEUP_EVENT:
/* ...user code... */
break;
case USBD_INISOINCOM_EVENT:
audio_inisoincom_event(udev);
break;
default:
break;
}
return status;
}
/**
* @brief usb audio in iso incom event
* @param udev: usb device core handler type
* @retval none
*/
static void audio_inisoincom_event(void *udev)
{
#if 0
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
uint32_t fnsof = OTG_DEVICE(pudev->usb_reg)->dsts_bit.soffn;
uint32_t epctl_fb = USB_INEPT(pudev->usb_reg, (USBD_AUDIO_FEEDBACK_EPT&0x7F))->diepctl_bit.dpid;
uint32_t epctl_in = USB_INEPT(pudev->usb_reg, (USBD_AUDIO_MIC_IN_EPT&0x7F))->diepctl_bit.dpid;
uint32_t len = 0;
if((fnsof & 0x1) == epctl_fb)
{
USB_INEPT(pudev->usb_reg, (USBD_AUDIO_FEEDBACK_EPT&0x7F))->diepctl_bit.eptdis = 1;
USB_INEPT(pudev->usb_reg, (USBD_AUDIO_FEEDBACK_EPT&0x7F))->diepctl_bit.snak = 1;
usb_flush_tx_fifo(pudev->usb_reg, USBD_AUDIO_FEEDBACK_EPT&0x7F);
usbd_ept_send(pudev, USBD_AUDIO_FEEDBACK_EPT, paudio->audio_feed_back, 3);
}
if((fnsof & 0x1) == epctl_in)
{
USB_INEPT(pudev->usb_reg, (USBD_AUDIO_MIC_IN_EPT&0x7F))->diepctl_bit.eptdis = 1;
USB_INEPT(pudev->usb_reg, (USBD_AUDIO_MIC_IN_EPT&0x7F))->diepctl_bit.snak = 1;
usb_flush_tx_fifo(pudev->usb_reg, USBD_AUDIO_MIC_IN_EPT&0x7F);
len = audio_codec_mic_get_data(paudio->audio_mic_data);
usbd_ept_send(pudev, USBD_AUDIO_MIC_IN_EPT, paudio->audio_mic_data, len);
}
#endif
}
/**
* @brief usb audio request get cur
* @param udev: usb device core handler type
* @param setup: setup class
* @retval none
*/
static void audio_req_get_cur(void *udev, usb_setup_type *setup)
{
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
if(HBYTE(setup->wIndex) == AUDIO_SPK_FEATURE_UNIT_ID)
{
if(HBYTE(setup->wValue) == AUDIO_MUTE_CONTROL)
{
paudio->g_audio_cur[0] = paudio->spk_mute;
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
else
{
*((uint16_t *)paudio->g_audio_cur) = paudio->spk_volume;
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
}
else
{
if(HBYTE(setup->wValue) == AUDIO_MUTE_CONTROL)
{
paudio->g_audio_cur[0] = paudio->mic_mute;
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
else
{
*((uint16_t *)paudio->g_audio_cur) = paudio->mic_volume;
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
}
}
/**
* @brief usb audio request set cur
* @param udev: usb device core handler type
* @param setup: setup class
* @retval none
*/
static void audio_req_set_cur(void *udev, usb_setup_type *setup)
{
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
if(setup->wLength > 0)
{
usbd_ctrl_recv(pudev, paudio->g_audio_cur, setup->wLength);
paudio->audio_cmd = AUDIO_REQ_SET_CUR;
paudio->audio_cmd_len = setup->wLength;
switch(setup->bmRequestType & AUDIO_REQ_CONTROL_MASK)
{
case AUDIO_REQ_CONTROL_INTERFACE:
paudio->interface = HBYTE(setup->wIndex);
if(HBYTE(setup->wValue) == AUDIO_MUTE_CONTROL)
{
paudio->request_no = AUDIO_MUTE_CONTROL;
}
else
{
paudio->request_no = AUDIO_VOLUME_CONTROL;
}
break;
case AUDIO_REQ_CONTROL_ENDPOINT:
paudio->enpd = setup->wIndex;
paudio->request_no = AUDIO_FREQ_SET_CONTROL;
break;
default:
break;
}
}
}
/**
* @brief usb audio request get min
* @param udev: usb device core handler type
* @param setup: setup class
* @retval none
*/
static void audio_req_get_min(void *udev, usb_setup_type *setup)
{
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
if(HBYTE(setup->wIndex) == AUDIO_SPK_FEATURE_UNIT_ID)
{
*((uint16_t *)paudio->g_audio_cur) = paudio->spk_volume_limits[0];
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
else
{
*((uint16_t *)paudio->g_audio_cur) = paudio->mic_volume_limits[0];
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
}
/**
* @brief usb audio request get max
* @param udev: usb device core handler type
* @param setup: setup class
* @retval none
*/
static void audio_req_get_max(void *udev, usb_setup_type *setup)
{
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
if(HBYTE(setup->wIndex) == AUDIO_SPK_FEATURE_UNIT_ID)
{
*((uint16_t *)paudio->g_audio_cur) = paudio->spk_volume_limits[1];
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
else
{
*((uint16_t *)paudio->g_audio_cur) = paudio->mic_volume_limits[1];
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
}
/**
* @brief usb audio request get res
* @param udev: usb device core handler type
* @param setup: setup class
* @retval none
*/
static void audio_req_get_res(void *udev, usb_setup_type *setup)
{
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
if(HBYTE(setup->wIndex) == AUDIO_SPK_FEATURE_UNIT_ID)
{
*((uint16_t *)paudio->g_audio_cur) = paudio->spk_volume_limits[2];
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
else
{
*((uint16_t *)paudio->g_audio_cur) = paudio->mic_volume_limits[2];
usbd_ctrl_send(pudev, paudio->g_audio_cur, setup->wLength);
}
}
/**
* @brief usb audio set interface
* @param udev: usb device core handler type
* @param setup: setup class
* @retval none
*/
static void audio_set_interface(void *udev, usb_setup_type *setup)
{
uint32_t len;
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
if(LBYTE(setup->wIndex) == AUDIO_SPK_INTERFACE_NUMBER)
{
paudio->spk_alt_setting = setup->wValue;
audio_codec_spk_alt_setting(paudio->spk_alt_setting);
if(paudio->spk_alt_setting )
{
usbd_ept_recv(pudev, USBD_AUDIO_SPK_OUT_EPT, paudio->audio_spk_data, AUDIO_SPK_OUT_MAXPACKET_SIZE);
}
}
else if(LBYTE(setup->wIndex) == AUDIO_MIC_INTERFACE_NUMBER)
{
paudio->mic_alt_setting = setup->wValue;
audio_codec_mic_alt_setting(paudio->mic_alt_setting);
if(paudio->mic_alt_setting)
{
len = audio_codec_mic_get_data(paudio->audio_mic_data);
usbd_ept_send(pudev, USBD_AUDIO_MIC_IN_EPT, paudio->audio_mic_data, len);
}
}
}
/**
* @brief usb audio get interface
* @param udev: usb device core handler type
* @param setup: setup class
* @retval none
*/
static void audio_get_interface(void *udev, usb_setup_type *setup)
{
usbd_core_type *pudev = (usbd_core_type *)udev;
usb_audio_type *paudio = (usb_audio_type *)pudev->class_handler->pdata;
if(LBYTE(setup->wIndex) == AUDIO_SPK_INTERFACE_NUMBER)
{
usbd_ctrl_send(pudev, (uint8_t *)&paudio->spk_alt_setting, 1);
}
else if(LBYTE(setup->wIndex) == AUDIO_MIC_INTERFACE_NUMBER)
{
usbd_ctrl_send(pudev, (uint8_t *)&paudio->mic_alt_setting, 1);
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
Reference in New Issue View Git Blame Copy Permalink