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simplify TUD_DFU_DESCRIPTOR with alternate count

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remove CFG_TUD_DFU_ALT_COUNT since there is only one DFU functional
descriptor
This commit is contained in:
hathach
2021-07-12 20:15:59 +07:00
parent 2916cd4575
commit 680b000bd1
4 changed files with 44 additions and 41 deletions
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9
examples/device/dfu/src/usb_descriptors.c
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@@ -81,13 +81,16 @@ uint8_t const * tud_descriptor_device_cb(void)
// Configuration Descriptor
//--------------------------------------------------------------------+
// Number of Alternate Interface (each for 1 flash partition)
#define ALT_COUNT 2
enum
{
ITF_NUM_DFU_MODE,
ITF_NUM_TOTAL
};
#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_DFU_MODE_DESC_LEN)
#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_DFU_DESC_LEN(ALT_COUNT))
#define FUNC_ATTRS (DFU_FUNC_ATTR_CAN_UPLOAD_BITMASK | DFU_FUNC_ATTR_CAN_DOWNLOAD_BITMASK)
@@ -96,8 +99,8 @@ uint8_t const desc_configuration[] =
// Config number, interface count, string index, total length, attribute, power in mA
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
// Interface number, attributes, detach timeout, transfer size, string index 0, [string index 1 ... string index n]
TUD_DFU_DESCRIPTOR(ITF_NUM_DFU_MODE, FUNC_ATTRS, 1000, CFG_TUD_DFU_TRANSFER_BUFFER_SIZE, 4, 5),
// Interface number, Alternate count, starting string index, attributes, detach timeout, transfer size
TUD_DFU_DESCRIPTOR(ITF_NUM_DFU_MODE, ALT_COUNT, 4, FUNC_ATTRS, 1000, CFG_TUD_DFU_TRANSFER_BUFFER_SIZE),
};
// Invoked when received GET CONFIGURATION DESCRIPTOR