57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
#include "usb_config.h"
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#include "app_config.h"
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#include "lbuf.h"
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#include "system/init.h"
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#define LOG_TAG_CONST USB
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#define LOG_TAG "[USB]"
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#define LOG_ERROR_ENABLE
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#define LOG_DEBUG_ENABLE
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#define LOG_INFO_ENABLE
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/* #define LOG_DUMP_ENABLE */
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#define LOG_CLI_ENABLE
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#include "debug.h"
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#if TCFG_USB_SLAVE_ENABLE || TCFG_USB_HOST_ENABLE
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#define USB_DMA_BUF_ALIGN 64 //husb的ep1, ep2, ep5, ep6的dma地址需要64字节对齐，ep3, ep4的dma地址需要8对齐
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//#ifndef USB_DMA_BUF_MAX_SIZE
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//#define USB_DMA_BUF_MAX_SIZE (HID_DMA_SIZE + AUDIO_DMA_SIZE + MSD_DMA_SIZE * 2 + CDC_DMA_SIZE + VIDEO_DMA_SIZE)
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//#endif
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//先定义一个足够大部分情况复合设备使用的buffer大小，供host和device一起
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//使用，后续再细调大小，需要注意的是，每次调用lbuf_alloc()都需要额外的
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//空间来保存头信息，因此需要预留比实际所需稍大的buffer空间
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#if defined CONFIG_UVC_VIDEO2_ENABLE
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static u8 usb_dma_buf[10 * 1024] SEC(.usb_fifo) __attribute__((aligned(64)));
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#elif (defined USB_DEVICE_CLASS_CONFIG_2_0) && (USB_DEVICE_CLASS_CONFIG_2_0 != 0)
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static u8 usb_dma_buf[4 * 1024] SEC(.usb_fifo) __attribute__((aligned(64)));
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#else
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static u8 usb_dma_buf[3 * 1024] SEC(.usb_fifo) __attribute__((aligned(64)));
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#endif
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static struct lbuff_head *usb_dma_lbuf = NULL;
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static int usb_memory_init(void)
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{
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usb_dma_lbuf = lbuf_init(usb_dma_buf, sizeof(usb_dma_buf), USB_DMA_BUF_ALIGN, 0);
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log_info("%s() total dma size %d @%x", __func__, sizeof(usb_dma_buf), usb_dma_buf);
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return 0;
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}
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early_initcall(usb_memory_init);
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void *usb_epbuf_alloc(const usb_dev usb_id, u32 size)
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{
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if (usb_id == 0) {
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size += 8; //usb0的rx，需要额外4字节存放接收的crc，使用ping-pong buffer就需要两份，即4 x 2
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}
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return lbuf_alloc(usb_dma_lbuf, size);
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}
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void usb_epbuf_free(const usb_dev usb_id, void *buf)
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{
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lbuf_free(buf);
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}
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#endif
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