#include <linux/firmware.h>
#include <linux/bitrev.h>
#include "mac.h"
#include "usb.h"
static int send_vendor_request(struct usb_device *udev, int request,
unsigned char *buffer, int buffer_size)
{
return usb_control_msg(udev,
usb_rcvctrlpipe(udev, 0),
request, 0xC0, 0, 0,
buffer, buffer_size, PLF_USB_TIMEOUT);
}
static int send_vendor_command(struct usb_device *udev, int request,
unsigned char *buffer, int buffer_size)
{
return usb_control_msg(udev,
usb_sndctrlpipe(udev, 0),
request, USB_TYPE_VENDOR , 0, 0,
buffer, buffer_size, PLF_USB_TIMEOUT);
}
int plfxlc_download_fpga(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
unsigned char *fpga_dmabuff = NULL;
const struct firmware *fw = NULL;
int blk_tran_len = PLF_BULK_TLEN;
unsigned char *fw_data;
const char *fw_name;
int r, actual_length;
int fw_data_i = 0;
if ((le16_to_cpu(udev->descriptor.idVendor) ==
PURELIFI_X_VENDOR_ID_0) &&
(le16_to_cpu(udev->descriptor.idProduct) ==
PURELIFI_X_PRODUCT_ID_0)) {
fw_name = "plfxlc/lifi-x.bin";
dev_dbg(&intf->dev, "bin file for X selected\n");
} else if ((le16_to_cpu(udev->descriptor.idVendor)) ==
PURELIFI_XC_VENDOR_ID_0 &&
(le16_to_cpu(udev->descriptor.idProduct) ==
PURELIFI_XC_PRODUCT_ID_0)) {
fw_name = "plfxlc/lifi-xc.bin";
dev_dbg(&intf->dev, "bin file for XC selected\n");
} else {
r = -EINVAL;
goto error;
}
r = request_firmware(&fw, fw_name, &intf->dev);
if (r) {
dev_err(&intf->dev, "request_firmware failed (%d)\n", r);
goto error;
}
fpga_dmabuff = kmalloc(PLF_FPGA_STATUS_LEN, GFP_KERNEL);
if (!fpga_dmabuff) {
r = -ENOMEM;
goto error_free_fw;
}
send_vendor_request(udev, PLF_VNDR_FPGA_SET_REQ,
fpga_dmabuff, PLF_FPGA_STATUS_LEN);
send_vendor_command(udev, PLF_VNDR_FPGA_SET_CMD, NULL, 0);
if (fpga_dmabuff[0] != PLF_FPGA_MG) {
dev_err(&intf->dev, "fpga_dmabuff[0] is wrong\n");
r = -EINVAL;
goto error_free_fw;
}
for (fw_data_i = 0; fw_data_i < fw->size;) {
int tbuf_idx;
if ((fw->size - fw_data_i) < blk_tran_len)
blk_tran_len = fw->size - fw_data_i;
fw_data = kmemdup(&fw->data[fw_data_i], blk_tran_len,
GFP_KERNEL);
if (!fw_data) {
r = -ENOMEM;
goto error_free_fw;
}
for (tbuf_idx = 0; tbuf_idx < blk_tran_len; tbuf_idx++) {
fw_data[tbuf_idx] = bitrev8(fw_data[tbuf_idx]);
}
r = usb_bulk_msg(udev,
usb_sndbulkpipe(interface_to_usbdev(intf),
fpga_dmabuff[0] & 0xff),
fw_data,
blk_tran_len,
&actual_length,
2 * PLF_USB_TIMEOUT);
if (r)
dev_err(&intf->dev, "Bulk msg failed (%d)\n", r);
kfree(fw_data);
fw_data_i += blk_tran_len;
}
kfree(fpga_dmabuff);
fpga_dmabuff = kmalloc(PLF_FPGA_STATE_LEN, GFP_KERNEL);
if (!fpga_dmabuff) {
r = -ENOMEM;
goto error_free_fw;
}
memset(fpga_dmabuff, 0xff, PLF_FPGA_STATE_LEN);
send_vendor_request(udev, PLF_VNDR_FPGA_STATE_REQ, fpga_dmabuff,
PLF_FPGA_STATE_LEN);
dev_dbg(&intf->dev, "%*ph\n", 8, fpga_dmabuff);
if (fpga_dmabuff[0] != 0) {
r = -EINVAL;
goto error_free_fw;
}
send_vendor_command(udev, PLF_VNDR_FPGA_STATE_CMD, NULL, 0);
msleep(PLF_MSLEEP_TIME);
error_free_fw:
kfree(fpga_dmabuff);
release_firmware(fw);
error:
return r;
}
int plfxlc_download_xl_firmware(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
const struct firmware *fwp = NULL;
struct plfxlc_firmware_file file = {0};
const char *fw_pack;
int s, r;
u8 *buf;
u32 i;
r = send_vendor_command(udev, PLF_VNDR_XL_FW_CMD, NULL, 0);
msleep(PLF_MSLEEP_TIME);
if (r) {
dev_err(&intf->dev, "vendor command failed (%d)\n", r);
return -EINVAL;
}
fw_pack = "plfxlc/lifi-xl.bin";
r = request_firmware(&fwp, fw_pack, &intf->dev);
if (r) {
dev_err(&intf->dev, "Request_firmware failed (%d)\n", r);
return -EINVAL;
}
file.total_files = get_unaligned_le32(&fwp->data[0]);
file.total_size = get_unaligned_le32(&fwp->size);
dev_dbg(&intf->dev, "XL Firmware (%d, %d)\n",
file.total_files, file.total_size);
buf = kzalloc(PLF_XL_BUF_LEN, GFP_KERNEL);
if (!buf) {
release_firmware(fwp);
return -ENOMEM;
}
if (file.total_files > 10) {
dev_err(&intf->dev, "Too many files (%d)\n", file.total_files);
release_firmware(fwp);
kfree(buf);
return -EINVAL;
}
for (s = 0; s < file.total_files; s++) {
buf[0] = s;
r = send_vendor_command(udev, PLF_VNDR_XL_FILE_CMD, buf,
PLF_XL_BUF_LEN);
if (s < file.total_files - 1)
file.size = get_unaligned_le32(&fwp->data[4 + ((s + 1) * 4)])
- get_unaligned_le32(&fwp->data[4 + (s) * 4]);
else
file.size = file.total_size -
get_unaligned_le32(&fwp->data[4 + (s) * 4]);
if (file.size > file.total_size || file.size > 60000) {
dev_err(&intf->dev, "File size is too large (%d)\n", file.size);
break;
}
file.start_addr = get_unaligned_le32(&fwp->data[4 + (s * 4)]);
if (file.size % PLF_XL_BUF_LEN && s < 2)
file.size += PLF_XL_BUF_LEN - file.size % PLF_XL_BUF_LEN;
file.control_packets = file.size / PLF_XL_BUF_LEN;
for (i = 0; i < file.control_packets; i++) {
memcpy(buf,
&fwp->data[file.start_addr + (i * PLF_XL_BUF_LEN)],
PLF_XL_BUF_LEN);
r = send_vendor_command(udev, PLF_VNDR_XL_DATA_CMD, buf,
PLF_XL_BUF_LEN);
}
dev_dbg(&intf->dev, "fw-dw step=%d,r=%d size=%d\n", s, r,
file.size);
}
release_firmware(fwp);
kfree(buf);
r = send_vendor_command(udev, PLF_VNDR_XL_EX_CMD, NULL, 0);
dev_dbg(&intf->dev, "Download fpga (4) (%d)\n", r);
return 0;
}
int plfxlc_upload_mac_and_serial(struct usb_interface *intf,
unsigned char *hw_address,
unsigned char *serial_number)
{
struct usb_device *udev = interface_to_usbdev(intf);
unsigned long long firmware_version;
unsigned char *dma_buffer = NULL;
dma_buffer = kmalloc(PLF_SERIAL_LEN, GFP_KERNEL);
if (!dma_buffer)
return -ENOMEM;
BUILD_BUG_ON(ETH_ALEN > PLF_SERIAL_LEN);
BUILD_BUG_ON(PLF_FW_VER_LEN > PLF_SERIAL_LEN);
send_vendor_request(udev, PLF_MAC_VENDOR_REQUEST, dma_buffer,
ETH_ALEN);
memcpy(hw_address, dma_buffer, ETH_ALEN);
send_vendor_request(udev, PLF_SERIAL_NUMBER_VENDOR_REQUEST,
dma_buffer, PLF_SERIAL_LEN);
send_vendor_request(udev, PLF_SERIAL_NUMBER_VENDOR_REQUEST,
dma_buffer, PLF_SERIAL_LEN);
memcpy(serial_number, dma_buffer, PLF_SERIAL_LEN);
memset(dma_buffer, 0x00, PLF_SERIAL_LEN);
send_vendor_request(udev, PLF_FIRMWARE_VERSION_VENDOR_REQUEST,
(unsigned char *)dma_buffer, PLF_FW_VER_LEN);
memcpy(&firmware_version, dma_buffer, PLF_FW_VER_LEN);
dev_info(&intf->dev, "Firmware Version: %llu\n", firmware_version);
kfree(dma_buffer);
dev_dbg(&intf->dev, "Mac: %pM\n", hw_address);
return 0;
}
