cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/pci/mantis/mantis_ioc.c

/*
        Mantis PCI bridge driver

        Copyright (C) Manu Abraham (abraham.manu@gmail.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, write to the Free Software
        Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <linux/kernel.h>
#include <linux/i2c.h>

#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <asm/io.h>

#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_net.h"

#include "mantis_common.h"
#include "mantis_reg.h"
#include "mantis_ioc.h"


static int read_eeprom_bytes(struct mantis_pci *mantis, u8 reg, u8 *data, u8 length) { struct i2c_adapter *adapter = &mantis->adapter; int err; u8 buf = reg; struct i2c_msg msg[] = { { .addr = 0x50, .flags = 0, .buf = &buf, .len = 1 }, { .addr = 0x50, .flags = I2C_M_RD, .buf = data, .len = length }, }; err = i2c_transfer(adapter, msg, 2); if (err < 0) { dprintk(MANTIS_ERROR, 1, "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >", err, data[0], data[1]); return err; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham137100.00%2100.00%
Total137100.00%2100.00%


int mantis_get_mac(struct mantis_pci *mantis) { int err; u8 mac_addr[6] = {0}; err = read_eeprom_bytes(mantis, 0x08, mac_addr, 6); if (err < 0) { dprintk(MANTIS_ERROR, 1, "ERROR: Mantis EEPROM read error <%d>", err); return err; } dprintk(MANTIS_ERROR, 0, " MAC Address=[%pM]\n", mac_addr); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham7198.61%266.67%
andy shevchenkoandy shevchenko11.39%133.33%
Total72100.00%3100.00%

EXPORT_SYMBOL_GPL(mantis_get_mac); /* Turn the given bit on or off. */
void mantis_gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value) { u32 cur; dprintk(MANTIS_DEBUG, 1, "Set Bit <%d> to <%d>", bitpos, value); cur = mmread(MANTIS_GPIF_ADDR); if (value) mantis->gpio_status = cur | (1 << bitpos); else mantis->gpio_status = cur & (~(1 << bitpos)); dprintk(MANTIS_DEBUG, 1, "GPIO Value <%02x>", mantis->gpio_status); mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR); mmwrite(0x00, MANTIS_GPIF_DOUT); }

Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham9999.00%266.67%
ben hutchingsben hutchings11.00%133.33%
Total100100.00%3100.00%

EXPORT_SYMBOL_GPL(mantis_gpio_set_bits);
int mantis_stream_control(struct mantis_pci *mantis, enum mantis_stream_control stream_ctl) { u32 reg; reg = mmread(MANTIS_CONTROL); switch (stream_ctl) { case STREAM_TO_HIF: dprintk(MANTIS_DEBUG, 1, "Set stream to HIF"); reg &= 0xff - MANTIS_BYPASS; mmwrite(reg, MANTIS_CONTROL); reg |= MANTIS_BYPASS; mmwrite(reg, MANTIS_CONTROL); break; case STREAM_TO_CAM: dprintk(MANTIS_DEBUG, 1, "Set stream to CAM"); reg |= MANTIS_BYPASS; mmwrite(reg, MANTIS_CONTROL); reg &= 0xff - MANTIS_BYPASS; mmwrite(reg, MANTIS_CONTROL); break; default: dprintk(MANTIS_ERROR, 1, "Unknown MODE <%02x>", stream_ctl); return -1; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham123100.00%1100.00%
Total123100.00%1100.00%

EXPORT_SYMBOL_GPL(mantis_stream_control);

Overall Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham48598.78%350.00%
alexey dobriyanalexey dobriyan30.61%116.67%
ben hutchingsben hutchings20.41%116.67%
andy shevchenkoandy shevchenko10.20%116.67%
Total491100.00%6100.00%
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