From 70eefcb849542f386a1349da7a4944d2d02dcd40 Mon Sep 17 00:00:00 2001 From: rppicomidi Date: Thu, 25 Aug 2022 15:08:00 -0700 Subject: [PATCH] Add hooks to allow cloning an attached USB device descriptor --- src/device/usbd_control.c | 2 +- src/host/usbh.c | 7 +++++-- src/host/usbh.h | 6 +++++- src/tusb_option.h | 6 +++--- 4 files changed, 14 insertions(+), 7 deletions(-) diff --git a/src/device/usbd_control.c b/src/device/usbd_control.c index 0995ef669..187547ae3 100644 --- a/src/device/usbd_control.c +++ b/src/device/usbd_control.c @@ -56,7 +56,7 @@ typedef struct static usbd_control_xfer_t _ctrl_xfer; CFG_TUSB_MEM_SECTION CFG_TUSB_MEM_ALIGN -static uint8_t _usbd_ctrl_buf[CFG_TUD_ENDPOINT0_SIZE]; +static uint8_t _usbd_ctrl_buf[/*CFG_TUD_ENDPOINT0_SIZE*/ 64]; //--------------------------------------------------------------------+ // Application API diff --git a/src/host/usbh.c b/src/host/usbh.c index c59f31596..44b4d3217 100644 --- a/src/host/usbh.c +++ b/src/host/usbh.c @@ -1323,7 +1323,7 @@ static void process_enumeration(tuh_xfer_t* xfer) dev->i_product = desc_device->iProduct; dev->i_serial = desc_device->iSerialNumber; - // if (tuh_attach_cb) tuh_attach_cb((tusb_desc_device_t*) _usbh_ctrl_buf); + if (tuh_desc_device_cb) tuh_desc_device_cb(daddr, (tusb_desc_device_t const*) _usbh_ctrl_buf); // Get 9-byte for total length uint8_t const config_idx = CONFIG_NUM - 1; @@ -1350,9 +1350,12 @@ static void process_enumeration(tuh_xfer_t* xfer) break; case ENUM_SET_CONFIG: + // Got the whole configuration descriptor. Make a copy + if (tuh_desc_config_cb) tuh_desc_config_cb(daddr, (const tusb_desc_configuration_t*) _usbh_ctrl_buf); + // Parse configuration & set up drivers // Driver open aren't allowed to make any usb transfer yet - TU_ASSERT( _parse_configuration_descriptor(daddr, (tusb_desc_configuration_t*) _usbh_ctrl_buf), ); + TU_ASSERT( _parse_configuration_descriptor(daddr, (const tusb_desc_configuration_t* ) _usbh_ctrl_buf), ); TU_ASSERT( tuh_configuration_set(daddr, CONFIG_NUM, process_enumeration, ENUM_CONFIG_DRIVER), ); break; diff --git a/src/host/usbh.h b/src/host/usbh.h index 560a1ea23..7355c83ee 100644 --- a/src/host/usbh.h +++ b/src/host/usbh.h @@ -78,7 +78,11 @@ enum // APPLICATION CALLBACK //--------------------------------------------------------------------+ -//TU_ATTR_WEAK uint8_t tuh_attach_cb (tusb_desc_device_t const *desc_device); +// Give the application an opportunity to grab the device descriptor +TU_ATTR_WEAK void tuh_desc_device_cb(uint8_t daddr, const tusb_desc_device_t *desc_device); + +// Give the application an opportunity to grab the configuration descriptor +TU_ATTR_WEAK void tuh_desc_config_cb(uint8_t daddr, const tusb_desc_configuration_t *desc_config); // Invoked when device is mounted (configured) TU_ATTR_WEAK void tuh_mount_cb (uint8_t daddr); diff --git a/src/tusb_option.h b/src/tusb_option.h index f95ae6273..b905fc7ce 100644 --- a/src/tusb_option.h +++ b/src/tusb_option.h @@ -427,9 +427,9 @@ typedef int make_iso_compilers_happy; //------------------------------------------------------------------ // Configuration Validation //------------------------------------------------------------------ -#if CFG_TUD_ENDPOINT0_SIZE > 64 - #error Control Endpoint Max Packet Size cannot be larger than 64 -#endif +//#if CFG_TUD_ENDPOINT0_SIZE > 64 +// #error Control Endpoint Max Packet Size cannot be larger than 64 +//#endif #endif /* _TUSB_OPTION_H_ */