113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
Mantis PCI bridge driver
|
||
|
|
|
||
|
|
Copyright (C) Manu Abraham (abraham.manu@gmail.com)
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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 <media/dmxdev.h>
|
||
|
|
#include <media/dvbdev.h>
|
||
|
|
#include <media/dvb_demux.h>
|
||
|
|
#include <media/dvb_frontend.h>
|
||
|
|
#include <media/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;
|
||
|
|
}
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(mantis_stream_control);
|