diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/staging/vt6656/firmware.c |
Initial import
Diffstat (limited to 'drivers/staging/vt6656/firmware.c')
-rw-r--r-- | drivers/staging/vt6656/firmware.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c new file mode 100644 index 000000000..657051897 --- /dev/null +++ b/drivers/staging/vt6656/firmware.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * + * File: baseband.c + * + * Purpose: Implement functions to access baseband + * + * Author: Yiching Chen + * + * Date: May 20, 2004 + * + * Functions: + * + * Revision History: + * + */ + +#include <linux/compiler.h> +#include "firmware.h" +#include "usbpipe.h" + +#define FIRMWARE_VERSION 0x133 /* version 1.51 */ +#define FIRMWARE_NAME "/*(DEBLOBBED)*/" + +#define FIRMWARE_CHUNK_SIZE 0x400 + +int vnt_download_firmware(struct vnt_private *priv) +{ + struct device *dev = &priv->usb->dev; + const struct firmware *fw; + int status; + void *buffer = NULL; + bool result = false; + u16 length; + int ii, rc; + + dev_dbg(dev, "---->Download firmware\n"); + + rc = reject_firmware(&fw, FIRMWARE_NAME, dev); + if (rc) { + dev_err(dev, "firmware file %s request failed (%d)\n", + FIRMWARE_NAME, rc); + goto out; + } + + buffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL); + if (!buffer) + goto free_fw; + + for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) { + length = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE); + memcpy(buffer, fw->data + ii, length); + + status = vnt_control_out(priv, + 0, + 0x1200+ii, + 0x0000, + length, + buffer); + + dev_dbg(dev, "Download firmware...%d %zu\n", ii, fw->size); + + if (status != STATUS_SUCCESS) + goto free_fw; + } + + result = true; +free_fw: + release_firmware(fw); + +out: + kfree(buffer); + + return result; +} +/*(DEBLOBBED)*/ + +int vnt_firmware_branch_to_sram(struct vnt_private *priv) +{ + int status; + + dev_dbg(&priv->usb->dev, "---->Branch to Sram\n"); + + status = vnt_control_out(priv, + 1, + 0x1200, + 0x0000, + 0, + NULL); + return status == STATUS_SUCCESS; +} + +int vnt_check_firmware_version(struct vnt_private *priv) +{ + int status; + + status = vnt_control_in(priv, + MESSAGE_TYPE_READ, + 0, + MESSAGE_REQUEST_VERSION, + 2, + (u8 *)&priv->firmware_version); + + dev_dbg(&priv->usb->dev, "Firmware Version [%04x]\n", + priv->firmware_version); + + if (status != STATUS_SUCCESS) { + dev_dbg(&priv->usb->dev, "Firmware Invalid.\n"); + return false; + } + if (priv->firmware_version == 0xFFFF) { + dev_dbg(&priv->usb->dev, "In Loader.\n"); + return false; + } + + dev_dbg(&priv->usb->dev, "Firmware Version [%04x]\n", + priv->firmware_version); + + if (priv->firmware_version < FIRMWARE_VERSION) { + /* branch to loader for download new firmware */ + vnt_firmware_branch_to_sram(priv); + return false; + } + return true; +} |