cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/ralink/rt2x00/rt2x00firmware.c

/*
        Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
        Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
        <http://rt2x00.serialmonkey.com>

        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, see <http://www.gnu.org/licenses/>.
 */

/*
        Module: rt2x00lib
        Abstract: rt2x00 firmware loading routines.
 */

#include <linux/kernel.h>
#include <linux/module.h>

#include "rt2x00.h"
#include "rt2x00lib.h"


static int rt2x00lib_request_firmware(struct rt2x00_dev *rt2x00dev) { struct device *device = wiphy_dev(rt2x00dev->hw->wiphy); const struct firmware *fw; char *fw_name; int retval; /* * Read correct firmware from harddisk. */ fw_name = rt2x00dev->ops->lib->get_firmware_name(rt2x00dev); if (!fw_name) { rt2x00_err(rt2x00dev, "Invalid firmware filename\n" "Please file bug report to %s\n", DRV_PROJECT); return -EINVAL; } rt2x00_info(rt2x00dev, "Loading firmware file '%s'\n", fw_name); retval = request_firmware(&fw, fw_name, device); if (retval) { rt2x00_err(rt2x00dev, "Failed to request Firmware\n"); return retval; } if (!fw || !fw->size || !fw->data) { rt2x00_err(rt2x00dev, "Failed to read Firmware\n"); release_firmware(fw); return -ENOENT; } rt2x00_info(rt2x00dev, "Firmware detected - version: %d.%d\n", fw->data[fw->size - 4], fw->data[fw->size - 3]); snprintf(rt2x00dev->hw->wiphy->fw_version, sizeof(rt2x00dev->hw->wiphy->fw_version), "%d.%d", fw->data[fw->size - 4], fw->data[fw->size - 3]); retval = rt2x00dev->ops->lib->check_firmware(rt2x00dev, fw->data, fw->size); switch (retval) { case FW_OK: break; case FW_BAD_CRC: rt2x00_err(rt2x00dev, "Firmware checksum error\n"); goto exit; case FW_BAD_LENGTH: rt2x00_err(rt2x00dev, "Invalid firmware file length (len=%zu)\n", fw->size); goto exit; case FW_BAD_VERSION: rt2x00_err(rt2x00dev, "Current firmware does not support detected chipset\n"); goto exit; } rt2x00dev->fw = fw; return 0; exit: release_firmware(fw); return -ENOENT; }

Contributors

PersonTokensPropCommitsCommitProp
Ivo van Doorn24578.53%350.00%
John W. Linville4614.74%116.67%
Joe Perches165.13%116.67%
Jesper Juhl51.60%116.67%
Total312100.00%6100.00%


int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev) { int retval; if (!rt2x00_has_cap_flag(rt2x00dev, REQUIRE_FIRMWARE)) return 0; if (!rt2x00dev->fw) { retval = rt2x00lib_request_firmware(rt2x00dev); if (retval) return retval; } /* * Send firmware to the device. */ retval = rt2x00dev->ops->lib->load_firmware(rt2x00dev, rt2x00dev->fw->data, rt2x00dev->fw->size); /* * When the firmware is uploaded to the hardware the LED * association status might have been triggered, for correct * LED handling it should now be reset. */ rt2x00leds_led_assoc(rt2x00dev, false); return retval; }

Contributors

PersonTokensPropCommitsCommitProp
Ivo van Doorn8396.51%375.00%
Fred Chou33.49%125.00%
Total86100.00%4100.00%


void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev) { release_firmware(rt2x00dev->fw); rt2x00dev->fw = NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Ivo van Doorn23100.00%1100.00%
Total23100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ivo van Doorn36483.68%444.44%
John W. Linville4610.57%111.11%
Joe Perches163.68%111.11%
Jesper Juhl51.15%111.11%
Fred Chou30.69%111.11%
Jeff Kirsher10.23%111.11%
Total435100.00%9100.00%
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