From 8f560bf275b9c0d6d6e524962deb4d7e2502623e Mon Sep 17 00:00:00 2001 From: hathach Date: Thu, 28 May 2020 11:41:37 +0700 Subject: [PATCH] update midi open() --- src/class/midi/midi_device.c | 55 ++++++++++++++++++------------------ src/class/midi/midi_device.h | 12 ++++---- 2 files changed, 34 insertions(+), 33 deletions(-) diff --git a/src/class/midi/midi_device.c b/src/class/midi/midi_device.c index 7bc8cef84..69dafe0a0 100644 --- a/src/class/midi/midi_device.c +++ b/src/class/midi/midi_device.c @@ -290,31 +290,30 @@ void midid_reset(uint8_t rhport) } } -bool midid_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t *p_length) +uint16_t midid_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t max_len) { - // 1st Interface is Audio Control v1 TU_VERIFY(TUSB_CLASS_AUDIO == desc_itf->bInterfaceClass && AUDIO_SUBCLASS_CONTROL == desc_itf->bInterfaceSubClass && - AUDIO_PROTOCOL_V1 == desc_itf->bInterfaceProtocol); + AUDIO_PROTOCOL_V1 == desc_itf->bInterfaceProtocol, 0); uint16_t drv_len = tu_desc_len(desc_itf); uint8_t const * p_desc = tu_desc_next(desc_itf); // Skip Class Specific descriptors - while ( TUSB_DESC_CS_INTERFACE == tu_desc_type(p_desc) ) + while ( TUSB_DESC_CS_INTERFACE == tu_desc_type(p_desc) && drv_len <= max_len ) { drv_len += tu_desc_len(p_desc); - p_desc = tu_desc_next(p_desc); + p_desc = tu_desc_next(p_desc); } // 2nd Interface is MIDI Streaming - TU_VERIFY(TUSB_DESC_INTERFACE == tu_desc_type(p_desc)); + TU_VERIFY(TUSB_DESC_INTERFACE == tu_desc_type(p_desc), 0); tusb_desc_interface_t const * desc_midi = (tusb_desc_interface_t const *) p_desc; TU_VERIFY(TUSB_CLASS_AUDIO == desc_midi->bInterfaceClass && AUDIO_SUBCLASS_MIDI_STREAMING == desc_midi->bInterfaceSubClass && - AUDIO_PROTOCOL_V1 == desc_midi->bInterfaceProtocol ); + AUDIO_PROTOCOL_V1 == desc_midi->bInterfaceProtocol, 0); // Find available interface midid_interface_t * p_midi = NULL; @@ -327,40 +326,42 @@ bool midid_open(uint8_t rhport, tusb_desc_interface_t const * desc_itf, uint16_t } } - p_midi->itf_num = desc_midi->bInterfaceNumber; + p_midi->itf_num = desc_midi->bInterfaceNumber; // next descriptor drv_len += tu_desc_len(p_desc); - p_desc = tu_desc_next(p_desc); + p_desc = tu_desc_next(p_desc); // Find and open endpoint descriptors uint8_t found_endpoints = 0; - while (found_endpoints < desc_midi->bNumEndpoints) + while ( (found_endpoints < desc_midi->bNumEndpoints) && (drv_len <= max_len) ) { - if ( TUSB_DESC_ENDPOINT == p_desc[DESC_OFFSET_TYPE]) + if ( TUSB_DESC_ENDPOINT == tu_desc_type(p_desc) ) { - TU_ASSERT( usbd_edpt_open(rhport, (tusb_desc_endpoint_t const *) p_desc), false); - uint8_t ep_addr = ((tusb_desc_endpoint_t const *) p_desc)->bEndpointAddress; - if (tu_edpt_dir(ep_addr) == TUSB_DIR_IN) { - p_midi->ep_in = ep_addr; - } else { - p_midi->ep_out = ep_addr; - } + TU_ASSERT(usbd_edpt_open(rhport, (tusb_desc_endpoint_t const *) p_desc), 0); + uint8_t ep_addr = ((tusb_desc_endpoint_t const *) p_desc)->bEndpointAddress; - drv_len += p_desc[DESC_OFFSET_LEN]; - p_desc = tu_desc_next(p_desc); - found_endpoints += 1; + if (tu_edpt_dir(ep_addr) == TUSB_DIR_IN) + { + p_midi->ep_in = ep_addr; + } else { + p_midi->ep_out = ep_addr; + } + + drv_len += tu_desc_len(p_desc); + p_desc = tu_desc_next(p_desc); + + found_endpoints += 1; } - drv_len += p_desc[DESC_OFFSET_LEN]; - p_desc = tu_desc_next(p_desc); + + drv_len += tu_desc_len(p_desc); + p_desc = tu_desc_next(p_desc); } - *p_length = drv_len; - // Prepare for incoming data - TU_ASSERT( usbd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), false); + TU_ASSERT( usbd_edpt_xfer(rhport, p_midi->ep_out, p_midi->epout_buf, CFG_TUD_MIDI_EPSIZE), 0 ); - return true; + return drv_len; } bool midid_control_complete(uint8_t rhport, tusb_control_request_t const * p_request) diff --git a/src/class/midi/midi_device.h b/src/class/midi/midi_device.h index e4d4f9d51..bec0984f2 100644 --- a/src/class/midi/midi_device.h +++ b/src/class/midi/midi_device.h @@ -136,12 +136,12 @@ static inline bool tud_midi_send (uint8_t const packet[4]) //--------------------------------------------------------------------+ // Internal Class Driver API //--------------------------------------------------------------------+ -void midid_init (void); -void midid_reset (uint8_t rhport); -bool midid_open (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length); -bool midid_control_request (uint8_t rhport, tusb_control_request_t const * request); -bool midid_control_complete (uint8_t rhport, tusb_control_request_t const * request); -bool midid_xfer_cb (uint8_t rhport, uint8_t edpt_addr, xfer_result_t result, uint32_t xferred_bytes); +void midid_init (void); +void midid_reset (uint8_t rhport); +uint16_t midid_open (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len); +bool midid_control_request (uint8_t rhport, tusb_control_request_t const * request); +bool midid_control_complete (uint8_t rhport, tusb_control_request_t const * request); +bool midid_xfer_cb (uint8_t rhport, uint8_t edpt_addr, xfer_result_t result, uint32_t xferred_bytes); #ifdef __cplusplus }