[linux-2.6-block.git] / 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 <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);
Commit	Line	Data
b3b96144 MA	1	/*
	2	Mantis PCI bridge driver
	3
8825a097	4	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
b3b96144 MA	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	19	*/
	20
	21	#include <linux/kernel.h>
	22	#include <linux/i2c.h>
	23
b3b96144 MA	24	#include <linux/signal.h>
	25	#include <linux/sched.h>
	26	#include <linux/interrupt.h>
b7f080cf	27	#include <asm/io.h>
b3b96144	28
fada1935 MCC	29	#include <media/dmxdev.h>
	30	#include <media/dvbdev.h>
	31	#include <media/dvb_demux.h>
	32	#include <media/dvb_frontend.h>
	33	#include <media/dvb_net.h>
b3b96144 MA	34
	35	#include "mantis_common.h"
	36	#include "mantis_reg.h"
	37	#include "mantis_ioc.h"
	38
3e978a82	39	static int read_eeprom_bytes(struct mantis_pci mantis, u8 reg, u8 data, u8 length)
b3b96144 MA	40	{
b3b96144 MA	41	struct i2c_adapter *adapter = &mantis->adapter;
b3b96144	42	int err;
3e978a82 MA	43	u8 buf = reg;
3e978a82 MA	44
b3b96144	45	struct i2c_msg msg[] = {
3e978a82	46	{ .addr = 0x50, .flags = 0, .buf = &buf, .len = 1 },
b3b96144 MA	47	{ .addr = 0x50, .flags = I2C_M_RD, .buf = data, .len = length },
	48	};
	49
	50	err = i2c_transfer(adapter, msg, 2);
	51	if (err < 0) {
	52	dprintk(MANTIS_ERROR, 1, "ERROR: i2c read: < err=%i d0=0x%02x d1=0x%02x >",
	53	err, data[0], data[1]);
	54
	55	return err;
	56	}
	57
	58	return 0;
	59	}
b3b96144 MA	60	int mantis_get_mac(struct mantis_pci *mantis)
	61	{
	62	int err;
3e978a82	63	u8 mac_addr[6] = {0};
b3b96144	64
3e978a82	65	err = read_eeprom_bytes(mantis, 0x08, mac_addr, 6);
b3b96144 MA	66	if (err < 0) {
	67	dprintk(MANTIS_ERROR, 1, "ERROR: Mantis EEPROM read error <%d>", err);
	68
	69	return err;
	70	}
	71
0e44dec1	72	dprintk(MANTIS_ERROR, 0, " MAC Address=[%pM]\n", mac_addr);
b3b96144 MA	73
	74	return 0;
	75	}
	76	EXPORT_SYMBOL_GPL(mantis_get_mac);
	77
	78	/* Turn the given bit on or off. */
3037fd14	79	void mantis_gpio_set_bits(struct mantis_pci *mantis, u32 bitpos, u8 value)
b3b96144 MA	80	{
	81	u32 cur;
	82
3e978a82	83	dprintk(MANTIS_DEBUG, 1, "Set Bit <%d> to <%d>", bitpos, value);
b3b96144 MA	84	cur = mmread(MANTIS_GPIF_ADDR);
	85	if (value)
	86	mantis->gpio_status = cur \| (1 << bitpos);
	87	else
	88	mantis->gpio_status = cur & (~(1 << bitpos));
	89
3e978a82	90	dprintk(MANTIS_DEBUG, 1, "GPIO Value <%02x>", mantis->gpio_status);
b3b96144 MA	91	mmwrite(mantis->gpio_status, MANTIS_GPIF_ADDR);
	92	mmwrite(0x00, MANTIS_GPIF_DOUT);
	93	}
3037fd14	94	EXPORT_SYMBOL_GPL(mantis_gpio_set_bits);
b3b96144 MA	95
	96	int mantis_stream_control(struct mantis_pci *mantis, enum mantis_stream_control stream_ctl)
	97	{
	98	u32 reg;
	99
	100	reg = mmread(MANTIS_CONTROL);
	101	switch (stream_ctl) {
	102	case STREAM_TO_HIF:
	103	dprintk(MANTIS_DEBUG, 1, "Set stream to HIF");
	104	reg &= 0xff - MANTIS_BYPASS;
	105	mmwrite(reg, MANTIS_CONTROL);
	106	reg \|= MANTIS_BYPASS;
	107	mmwrite(reg, MANTIS_CONTROL);
	108	break;
	109
	110	case STREAM_TO_CAM:
	111	dprintk(MANTIS_DEBUG, 1, "Set stream to CAM");
	112	reg \|= MANTIS_BYPASS;
	113	mmwrite(reg, MANTIS_CONTROL);
	114	reg &= 0xff - MANTIS_BYPASS;
	115	mmwrite(reg, MANTIS_CONTROL);
	116	break;
	117	default:
	118	dprintk(MANTIS_ERROR, 1, "Unknown MODE <%02x>", stream_ctl);
	119	return -1;
	120	}
	121
	122	return 0;
	123	}
	124	EXPORT_SYMBOL_GPL(mantis_stream_control);