forked from Minki/linux
b7f080cfe2
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually). To prevent mm.h inclusion via other channels also extract "enum dma_data_direction" definition into separate header. This tiny piece is what gluing netdevice.h with mm.h via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h". Removal of mm.h from scatterlist.h was tried and was found not feasible on most archs, so the link was cutoff earlier. Hope people are OK with tiny include file. Note, that mm_types.h is still dragged in, but it is a separate story. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/*
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Mantis PCI bridge driver
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Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/i2c.h>
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#include <linux/signal.h>
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <asm/io.h>
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#include "dmxdev.h"
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#include "dvbdev.h"
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#include "dvb_demux.h"
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#include "dvb_frontend.h"
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#include "dvb_net.h"
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#include "mantis_common.h"
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#include "mantis_reg.h"
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#include "mantis_ioc.h"
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static int read_eeprom_bytes(struct mantis_pci *mantis, u8 reg, u8 *data, u8 length)
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{
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struct i2c_adapter *adapter = &mantis->adapter;
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int err;
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u8 buf = reg;
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struct i2c_msg msg[] = {
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{ .addr = 0x50, .flags = 0, .buf = &buf, .len = 1 },
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{ .addr = 0x50, .flags = I2C_M_RD, .buf = data, .len = length },
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};
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err = i2c_transfer(adapter, msg, 2);
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if (err < 0) {
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dprintk(MANTIS_ERROR, 1, "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
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err, data[0], data[1]);
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return err;
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}
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return 0;
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}
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int mantis_get_mac(struct mantis_pci *mantis)
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{
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int err;
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u8 mac_addr[6] = {0};
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err = read_eeprom_bytes(mantis, 0x08, mac_addr, 6);
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if (err < 0) {
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dprintk(MANTIS_ERROR, 1, "ERROR: Mantis EEPROM read error <%d>", err);
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return err;
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}
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dprintk(MANTIS_ERROR, 0, " MAC Address=[%pM]\n", mac_addr);
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return 0;
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}
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EXPORT_SYMBOL_GPL(mantis_get_mac);
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/* Turn the given bit on or off. */
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void mantis_gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
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{
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u32 cur;
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dprintk(MANTIS_DEBUG, 1, "Set Bit <%d> to <%d>", bitpos, value);
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cur = mmread(MANTIS_GPIF_ADDR);
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if (value)
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mantis->gpio_status = cur | (1 << bitpos);
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else
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mantis->gpio_status = cur & (~(1 << bitpos));
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dprintk(MANTIS_DEBUG, 1, "GPIO Value <%02x>", mantis->gpio_status);
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mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
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mmwrite(0x00, MANTIS_GPIF_DOUT);
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}
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EXPORT_SYMBOL_GPL(mantis_gpio_set_bits);
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int mantis_stream_control(struct mantis_pci *mantis, enum mantis_stream_control stream_ctl)
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{
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u32 reg;
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reg = mmread(MANTIS_CONTROL);
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switch (stream_ctl) {
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case STREAM_TO_HIF:
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dprintk(MANTIS_DEBUG, 1, "Set stream to HIF");
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reg &= 0xff - MANTIS_BYPASS;
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mmwrite(reg, MANTIS_CONTROL);
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reg |= MANTIS_BYPASS;
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mmwrite(reg, MANTIS_CONTROL);
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break;
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case STREAM_TO_CAM:
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dprintk(MANTIS_DEBUG, 1, "Set stream to CAM");
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reg |= MANTIS_BYPASS;
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mmwrite(reg, MANTIS_CONTROL);
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reg &= 0xff - MANTIS_BYPASS;
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mmwrite(reg, MANTIS_CONTROL);
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break;
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default:
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dprintk(MANTIS_ERROR, 1, "Unknown MODE <%02x>", stream_ctl);
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return -1;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(mantis_stream_control);
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