277 lines
6.9 KiB
C
277 lines
6.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2021 pureLiFi
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*/
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#include <linux/firmware.h>
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#include <linux/bitrev.h>
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#include "mac.h"
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#include "usb.h"
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static int send_vendor_request(struct usb_device *udev, int request,
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unsigned char *buffer, int buffer_size)
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{
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return usb_control_msg(udev,
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usb_rcvctrlpipe(udev, 0),
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request, 0xC0, 0, 0,
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buffer, buffer_size, PLF_USB_TIMEOUT);
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}
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static int send_vendor_command(struct usb_device *udev, int request,
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unsigned char *buffer, int buffer_size)
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{
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return usb_control_msg(udev,
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usb_sndctrlpipe(udev, 0),
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request, USB_TYPE_VENDOR /*0x40*/, 0, 0,
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buffer, buffer_size, PLF_USB_TIMEOUT);
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}
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int plfxlc_download_fpga(struct usb_interface *intf)
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{
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struct usb_device *udev = interface_to_usbdev(intf);
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unsigned char *fpga_dmabuff = NULL;
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const struct firmware *fw = NULL;
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int blk_tran_len = PLF_BULK_TLEN;
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unsigned char *fw_data;
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const char *fw_name;
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int r, actual_length;
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int fw_data_i = 0;
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if ((le16_to_cpu(udev->descriptor.idVendor) ==
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PURELIFI_X_VENDOR_ID_0) &&
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(le16_to_cpu(udev->descriptor.idProduct) ==
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PURELIFI_X_PRODUCT_ID_0)) {
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fw_name = "plfxlc/lifi-x.bin";
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dev_dbg(&intf->dev, "bin file for X selected\n");
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} else if ((le16_to_cpu(udev->descriptor.idVendor)) ==
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PURELIFI_XC_VENDOR_ID_0 &&
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(le16_to_cpu(udev->descriptor.idProduct) ==
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PURELIFI_XC_PRODUCT_ID_0)) {
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fw_name = "plfxlc/lifi-xc.bin";
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dev_dbg(&intf->dev, "bin file for XC selected\n");
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} else {
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r = -EINVAL;
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goto error;
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}
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r = request_firmware(&fw, fw_name, &intf->dev);
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if (r) {
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dev_err(&intf->dev, "request_firmware failed (%d)\n", r);
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goto error;
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}
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fpga_dmabuff = kmalloc(PLF_FPGA_STATUS_LEN, GFP_KERNEL);
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if (!fpga_dmabuff) {
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r = -ENOMEM;
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goto error_free_fw;
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}
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send_vendor_request(udev, PLF_VNDR_FPGA_SET_REQ,
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fpga_dmabuff, PLF_FPGA_STATUS_LEN);
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send_vendor_command(udev, PLF_VNDR_FPGA_SET_CMD, NULL, 0);
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if (fpga_dmabuff[0] != PLF_FPGA_MG) {
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dev_err(&intf->dev, "fpga_dmabuff[0] is wrong\n");
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r = -EINVAL;
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goto error_free_fw;
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}
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for (fw_data_i = 0; fw_data_i < fw->size;) {
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int tbuf_idx;
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if ((fw->size - fw_data_i) < blk_tran_len)
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blk_tran_len = fw->size - fw_data_i;
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fw_data = kmemdup(&fw->data[fw_data_i], blk_tran_len,
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GFP_KERNEL);
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if (!fw_data) {
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r = -ENOMEM;
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goto error_free_fw;
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}
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for (tbuf_idx = 0; tbuf_idx < blk_tran_len; tbuf_idx++) {
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/* u8 bit reverse */
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fw_data[tbuf_idx] = bitrev8(fw_data[tbuf_idx]);
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}
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r = usb_bulk_msg(udev,
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usb_sndbulkpipe(interface_to_usbdev(intf),
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fpga_dmabuff[0] & 0xff),
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fw_data,
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blk_tran_len,
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&actual_length,
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2 * PLF_USB_TIMEOUT);
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if (r)
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dev_err(&intf->dev, "Bulk msg failed (%d)\n", r);
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kfree(fw_data);
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fw_data_i += blk_tran_len;
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}
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kfree(fpga_dmabuff);
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fpga_dmabuff = kmalloc(PLF_FPGA_STATE_LEN, GFP_KERNEL);
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if (!fpga_dmabuff) {
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r = -ENOMEM;
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goto error_free_fw;
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}
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memset(fpga_dmabuff, 0xff, PLF_FPGA_STATE_LEN);
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send_vendor_request(udev, PLF_VNDR_FPGA_STATE_REQ, fpga_dmabuff,
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PLF_FPGA_STATE_LEN);
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dev_dbg(&intf->dev, "%*ph\n", 8, fpga_dmabuff);
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if (fpga_dmabuff[0] != 0) {
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r = -EINVAL;
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goto error_free_fw;
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}
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send_vendor_command(udev, PLF_VNDR_FPGA_STATE_CMD, NULL, 0);
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msleep(PLF_MSLEEP_TIME);
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error_free_fw:
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kfree(fpga_dmabuff);
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release_firmware(fw);
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error:
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return r;
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}
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int plfxlc_download_xl_firmware(struct usb_interface *intf)
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{
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struct usb_device *udev = interface_to_usbdev(intf);
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const struct firmware *fwp = NULL;
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struct plfxlc_firmware_file file = {0};
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const char *fw_pack;
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int s, r;
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u8 *buf;
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u32 i;
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r = send_vendor_command(udev, PLF_VNDR_XL_FW_CMD, NULL, 0);
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msleep(PLF_MSLEEP_TIME);
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if (r) {
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dev_err(&intf->dev, "vendor command failed (%d)\n", r);
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return -EINVAL;
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}
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/* Code for single pack file download */
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fw_pack = "plfxlc/lifi-xl.bin";
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r = request_firmware(&fwp, fw_pack, &intf->dev);
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if (r) {
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dev_err(&intf->dev, "Request_firmware failed (%d)\n", r);
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return -EINVAL;
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}
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file.total_files = get_unaligned_le32(&fwp->data[0]);
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file.total_size = get_unaligned_le32(&fwp->size);
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dev_dbg(&intf->dev, "XL Firmware (%d, %d)\n",
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file.total_files, file.total_size);
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buf = kzalloc(PLF_XL_BUF_LEN, GFP_KERNEL);
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if (!buf) {
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release_firmware(fwp);
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return -ENOMEM;
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}
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if (file.total_files > 10) {
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dev_err(&intf->dev, "Too many files (%d)\n", file.total_files);
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release_firmware(fwp);
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kfree(buf);
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return -EINVAL;
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}
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/* Download firmware files in multiple steps */
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for (s = 0; s < file.total_files; s++) {
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buf[0] = s;
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r = send_vendor_command(udev, PLF_VNDR_XL_FILE_CMD, buf,
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PLF_XL_BUF_LEN);
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if (s < file.total_files - 1)
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file.size = get_unaligned_le32(&fwp->data[4 + ((s + 1) * 4)])
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- get_unaligned_le32(&fwp->data[4 + (s) * 4]);
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else
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file.size = file.total_size -
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get_unaligned_le32(&fwp->data[4 + (s) * 4]);
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if (file.size > file.total_size || file.size > 60000) {
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dev_err(&intf->dev, "File size is too large (%d)\n", file.size);
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break;
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}
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file.start_addr = get_unaligned_le32(&fwp->data[4 + (s * 4)]);
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if (file.size % PLF_XL_BUF_LEN && s < 2)
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file.size += PLF_XL_BUF_LEN - file.size % PLF_XL_BUF_LEN;
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file.control_packets = file.size / PLF_XL_BUF_LEN;
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for (i = 0; i < file.control_packets; i++) {
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memcpy(buf,
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&fwp->data[file.start_addr + (i * PLF_XL_BUF_LEN)],
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PLF_XL_BUF_LEN);
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r = send_vendor_command(udev, PLF_VNDR_XL_DATA_CMD, buf,
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PLF_XL_BUF_LEN);
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}
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dev_dbg(&intf->dev, "fw-dw step=%d,r=%d size=%d\n", s, r,
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file.size);
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}
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release_firmware(fwp);
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kfree(buf);
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/* Code for single pack file download ends fw download finish */
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r = send_vendor_command(udev, PLF_VNDR_XL_EX_CMD, NULL, 0);
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dev_dbg(&intf->dev, "Download fpga (4) (%d)\n", r);
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return 0;
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}
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int plfxlc_upload_mac_and_serial(struct usb_interface *intf,
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unsigned char *hw_address,
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unsigned char *serial_number)
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{
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struct usb_device *udev = interface_to_usbdev(intf);
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unsigned long long firmware_version;
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unsigned char *dma_buffer = NULL;
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dma_buffer = kmalloc(PLF_SERIAL_LEN, GFP_KERNEL);
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if (!dma_buffer)
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return -ENOMEM;
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BUILD_BUG_ON(ETH_ALEN > PLF_SERIAL_LEN);
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BUILD_BUG_ON(PLF_FW_VER_LEN > PLF_SERIAL_LEN);
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send_vendor_request(udev, PLF_MAC_VENDOR_REQUEST, dma_buffer,
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ETH_ALEN);
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memcpy(hw_address, dma_buffer, ETH_ALEN);
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send_vendor_request(udev, PLF_SERIAL_NUMBER_VENDOR_REQUEST,
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dma_buffer, PLF_SERIAL_LEN);
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send_vendor_request(udev, PLF_SERIAL_NUMBER_VENDOR_REQUEST,
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dma_buffer, PLF_SERIAL_LEN);
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memcpy(serial_number, dma_buffer, PLF_SERIAL_LEN);
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memset(dma_buffer, 0x00, PLF_SERIAL_LEN);
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send_vendor_request(udev, PLF_FIRMWARE_VERSION_VENDOR_REQUEST,
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(unsigned char *)dma_buffer, PLF_FW_VER_LEN);
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memcpy(&firmware_version, dma_buffer, PLF_FW_VER_LEN);
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dev_info(&intf->dev, "Firmware Version: %llu\n", firmware_version);
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kfree(dma_buffer);
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dev_dbg(&intf->dev, "Mac: %pM\n", hw_address);
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return 0;
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}
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