Hi Alberto,
It is now possible to read from block device al logic layer.
^^^^^^^ - what do you mean by logic layer?
I suppose this code is to read N blocks (512B) from eMMC device?
NOTE:
Please consider adding tests into test/py/tests/ as we already have such tests for test_ums.py and test_dfu.py
Corresponding command on workstation is: rkdeveloptool rl <start_blk> <blk_cnt> <file>
Signed-off-by: Alberto Panizzo alberto@amarulasolutions.com
arch/arm/include/asm/arch-rockchip/f_rockusb.h | 2 + drivers/usb/gadget/f_rockusb.c | 102 ++++++++++++++++++++++++- 2 files changed, 103 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/arch-rockchip/f_rockusb.h b/arch/arm/include/asm/arch-rockchip/f_rockusb.h index f5cad8e..f04d401 100644 --- a/arch/arm/include/asm/arch-rockchip/f_rockusb.h +++ b/arch/arm/include/asm/arch-rockchip/f_rockusb.h @@ -120,6 +120,8 @@ struct f_rockusb { unsigned int lba; unsigned int dl_size; unsigned int dl_bytes;
- unsigned int ul_size;
- unsigned int ul_bytes;
We had similar problem with Samsung's THOR. unsigned int may be too little in a while (we got int) ...
struct blk_desc *desc; int reboot_flag; void *buf; diff --git a/drivers/usb/gadget/f_rockusb.c b/drivers/usb/gadget/f_rockusb.c index 7612871..dbf31cb 100644 --- a/drivers/usb/gadget/f_rockusb.c +++ b/drivers/usb/gadget/f_rockusb.c @@ -340,6 +340,7 @@ static int rockusb_tx_write(const char *buffer, unsigned int buffer_size) memcpy(in_req->buf, buffer, buffer_size); in_req->length = buffer_size;
- debug("Transferring 0x%x bytes\n", buffer_size); usb_ep_dequeue(rockusb_func->in_ep, in_req); ret = usb_ep_queue(rockusb_func->in_ep, in_req, 0); if (ret)
@@ -434,6 +435,79 @@ static unsigned int rx_bytes_expected(struct usb_ep *ep) return rx_remain; }
+/* usb_request complete call back to handle upload image */ +static void tx_handler_ul_image(struct usb_ep *ep, struct usb_request *req) +{ +#define RBUFFER_SIZE 4096
This can be moved to header file.
- ALLOC_CACHE_ALIGN_BUFFER(char, rbuffer, RBUFFER_SIZE);
- struct f_rockusb *f_rkusb = get_rkusb();
- struct usb_request *in_req = rockusb_func->in_req;
- int ret;
- if (!f_rkusb->desc) {
char *type = f_rkusb->dev_type;int index = f_rkusb->dev_index;f_rkusb->desc = blk_get_dev(type, index);if (!f_rkusb->desc ||f_rkusb->desc->type == DEV_TYPE_UNKNOWN) {puts("invalid mmc device\n");rockusb_tx_write_csw(f_rkusb->tag, 0,CSW_FAIL,
USB_BULK_CS_WRAP_LEN);return;}- }
- /* Print error status of previous transfer */
- if (req->status)
debug("status: %d ep '%s' trans: %d len %d\n",req->status,
ep->name, req->actual, req->length);- /* On transfer complete reset in_req and feedback host with
CSW_GOOD */
- if (f_rkusb->ul_bytes >= f_rkusb->ul_size) {
in_req->length = 0;in_req->complete = rockusb_complete;rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_GOOD,USB_BULK_CS_WRAP_LEN);return;- }
- /* Proceed with current chunk */
- unsigned int transfer_size = f_rkusb->ul_size -
f_rkusb->ul_bytes; +
- if (transfer_size > RBUFFER_SIZE)
transfer_size = RBUFFER_SIZE;- /* Read at least one block */
- unsigned int blkcount = (transfer_size + 511) / 512;
- debug("ul %x bytes, %x blks, read lba %x, ul_size:%x,
ul_bytes:%x, ",
transfer_size, blkcount, f_rkusb->lba,f_rkusb->ul_size, f_rkusb->ul_bytes);- int blks = blk_dread(f_rkusb->desc, f_rkusb->lba, blkcount,
rbuffer); +
- if (blks != blkcount) {
printf("failed reading from device %s: %d\n",f_rkusb->dev_type, f_rkusb->dev_index);rockusb_tx_write_csw(f_rkusb->tag, 0, CSW_FAIL,USB_BULK_CS_WRAP_LEN);return;- }
- f_rkusb->lba += blkcount;
- f_rkusb->ul_bytes += transfer_size;
- /* Proceed with USB request */
- memcpy(in_req->buf, rbuffer, transfer_size);
- in_req->length = transfer_size;
- in_req->complete = tx_handler_ul_image;
- printf("Uploading 0x%x bytes\n", transfer_size);
- usb_ep_dequeue(rockusb_func->in_ep, in_req);
- ret = usb_ep_queue(rockusb_func->in_ep, in_req, 0);
- if (ret)
printf("Error %d on queue\n", ret);+}
/* usb_request complete call back to handle down load image */ static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req) { @@ -568,6 +642,32 @@ static void cb_get_chip_version(struct usb_ep *ep, struct usb_request *req) CSW_GOOD); }
+static void cb_read_lba(struct usb_ep *ep, struct usb_request *req) +{
- ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw,
sizeof(struct fsg_bulk_cb_wrap));- struct f_rockusb *f_rkusb = get_rkusb();
- int sector_count;
- memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN);
- sector_count = (int)get_unaligned_be16(&cbw->CDB[7]);
- f_rkusb->lba = get_unaligned_be32(&cbw->CDB[2]);
- f_rkusb->ul_size = sector_count * 512;
- f_rkusb->ul_bytes = 0;
- f_rkusb->tag = cbw->tag;
- debug("require read %x bytes, %x sectors from lba %x\n",
f_rkusb->ul_size, sector_count, f_rkusb->lba);- if (f_rkusb->ul_size == 0) {
rockusb_tx_write_csw(cbw->tag,cbw->data_transfer_length,
CSW_FAIL, USB_BULK_CS_WRAP_LEN);return;- }
- /* Start right now sending first chunk */
- tx_handler_ul_image(ep, req);
+}
static void cb_write_lba(struct usb_ep *ep, struct usb_request *req) { ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, @@ -678,7 +778,7 @@ static const struct cmd_dispatch_info cmd_dispatch_info[] = { }, { .cmd = K_FW_LBA_READ_10,
.cb = cb_not_support,
.cb = cb_read_lba,
Please add entry explaining this part of the protocol into README.rockusb
}, { .cmd = K_FW_LBA_WRITE_10,
Best regards,
Lukasz Majewski
--
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