diff options
| author | Alberto Panizzo | 2018-07-12 13:05:42 +0200 |
|---|---|---|
| committer | Marek Vasut | 2018-08-08 22:22:07 +0200 |
| commit | e4b34a7634c30ee2476ce019b8793099d02e1ac0 (patch) | |
| tree | 744431af117ecb3f4eef7f1a455189179179ea65 /drivers/usb/gadget | |
| parent | cad66e324d31e14d1f9eb19b52c4fe81bdad6951 (diff) | |
usb: rockchip: implement skeleton for K_FW_GET_CHIP_VER command
Chip Version is a string saved in BOOTROM address space Little Endian.
Ex for rk3288: 0x33323041 0x32303134 0x30383133 0x56323030
which brings: 320A20140813V200
Note that memory version do invert MSB/LSB so printing the char
buffer would show: A02341023180002V
Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/f_rockusb.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/drivers/usb/gadget/f_rockusb.c b/drivers/usb/gadget/f_rockusb.c index 58e483cf440..0314ff0e19e 100644 --- a/drivers/usb/gadget/f_rockusb.c +++ b/drivers/usb/gadget/f_rockusb.c @@ -523,6 +523,48 @@ static void cb_read_storage_id(struct usb_ep *ep, struct usb_request *req) rockusb_tx_write_str(emmc_id); } +int __weak rk_get_bootrom_chip_version(unsigned int *chip_info, int size) +{ + return 0; +} + +static void cb_get_chip_version(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(); + unsigned int chip_info[4], i; + + memset(chip_info, 0, sizeof(chip_info)); + rk_get_bootrom_chip_version(chip_info, 4); + + /* + * Chip Version is a string saved in BOOTROM address space Little Endian + * + * Ex for rk3288: 0x33323041 0x32303134 0x30383133 0x56323030 + * which brings: 320A20140813V200 + * + * Note that memory version do invert MSB/LSB so printing the char + * buffer will show: A02341023180002V + */ + printf("read chip version: "); + for (i = 0; i < 4; i++) { + printf("%c%c%c%c", + (chip_info[i] >> 24) & 0xFF, + (chip_info[i] >> 16) & 0xFF, + (chip_info[i] >> 8) & 0xFF, + (chip_info[i] >> 0) & 0xFF); + } + printf("\n"); + memcpy((char *)cbw, req->buf, USB_BULK_CB_WRAP_LEN); + + /* Prepare for sending subsequent CSW_GOOD */ + f_rkusb->tag = cbw->tag; + f_rkusb->in_req->complete = tx_handler_send_csw; + + rockusb_tx_write((char *)chip_info, sizeof(chip_info)); +} + static void cb_write_lba(struct usb_ep *ep, struct usb_request *req) { ALLOC_CACHE_ALIGN_BUFFER(struct fsg_bulk_cb_wrap, cbw, @@ -661,7 +703,7 @@ static const struct cmd_dispatch_info cmd_dispatch_info[] = { }, { .cmd = K_FW_GET_CHIP_VER, - .cb = cb_not_support, + .cb = cb_get_chip_version, }, { .cmd = K_FW_LOW_FORMAT, |