[media] SMI PCIe IR driver for DVBSky cards

Ported from the manufacturer's source tree, available from
http://dvbsky.net/download/linux/media_build-bst-150211.tar.gz

This is the second patch after a public review.

[mchehab@osg.samsung.com: fix inconsistent identing warning]
Signed-off-by: Dirk Nehring <dnehring@gmx.net>
Reviewd-by: Nibble Max <nibble.max@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 0 insertions, 1102 deletions

diff --git a/drivers/media/pci/smipcie/smipcie.c b/drivers/media/pci/smipcie/smipcie.c
deleted file mode 100644
index 143fd7899ecd..000000000000
--- a/drivers/media/pci/smipcie/smipcie.c
+++ /dev/null
@@ -1,1102 +0,0 @@
-/*
- * SMI PCIe driver for DVBSky cards.
- *
- * Copyright (C) 2014 Max nibble <nibble.max@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.
- */
-
-#include "smipcie.h"
-#include "m88ds3103.h"
-#include "ts2020.h"
-#include "m88rs6000t.h"
-#include "si2168.h"
-#include "si2157.h"
-
-DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
-
-static int smi_hw_init(struct smi_dev *dev)
-{
-	u32 port_mux, port_ctrl, int_stat;
-
-	/* set port mux.*/
-	port_mux = smi_read(MUX_MODE_CTRL);
-	port_mux &= ~(rbPaMSMask);
-	port_mux |= rbPaMSDtvNoGpio;
-	port_mux &= ~(rbPbMSMask);
-	port_mux |= rbPbMSDtvNoGpio;
-	port_mux &= ~(0x0f0000);
-	port_mux |= 0x50000;
-	smi_write(MUX_MODE_CTRL, port_mux);
-
-	/* set DTV register.*/
-	/* Port A */
-	port_ctrl = smi_read(VIDEO_CTRL_STATUS_A);
-	port_ctrl &= ~0x01;
-	smi_write(VIDEO_CTRL_STATUS_A, port_ctrl);
-	port_ctrl = smi_read(MPEG2_CTRL_A);
-	port_ctrl &= ~0x40;
-	port_ctrl |= 0x80;
-	smi_write(MPEG2_CTRL_A, port_ctrl);
-	/* Port B */
-	port_ctrl = smi_read(VIDEO_CTRL_STATUS_B);
-	port_ctrl &= ~0x01;
-	smi_write(VIDEO_CTRL_STATUS_B, port_ctrl);
-	port_ctrl = smi_read(MPEG2_CTRL_B);
-	port_ctrl &= ~0x40;
-	port_ctrl |= 0x80;
-	smi_write(MPEG2_CTRL_B, port_ctrl);
-
-	/* disable and clear interrupt.*/
-	smi_write(MSI_INT_ENA_CLR, ALL_INT);
-	int_stat = smi_read(MSI_INT_STATUS);
-	smi_write(MSI_INT_STATUS_CLR, int_stat);
-
-	/* reset demod.*/
-	smi_clear(PERIPHERAL_CTRL, 0x0303);
-	msleep(50);
-	smi_set(PERIPHERAL_CTRL, 0x0101);
-	return 0;
-}
-
-/* i2c bit bus.*/
-static void smi_i2c_cfg(struct smi_dev *dev, u32 sw_ctl)
-{
-	u32 dwCtrl;
-
-	dwCtrl = smi_read(sw_ctl);
-	dwCtrl &= ~0x18; /* disable output.*/
-	dwCtrl |= 0x21; /* reset and software mode.*/
-	dwCtrl &= ~0xff00;
-	dwCtrl |= 0x6400;
-	smi_write(sw_ctl, dwCtrl);
-	msleep(20);
-	dwCtrl = smi_read(sw_ctl);
-	dwCtrl &= ~0x20;
-	smi_write(sw_ctl, dwCtrl);
-}
-
-static void smi_i2c_setsda(struct smi_dev *dev, int state, u32 sw_ctl)
-{
-	if (state) {
-		/* set as input.*/
-		smi_clear(sw_ctl, SW_I2C_MSK_DAT_EN);
-	} else {
-		smi_clear(sw_ctl, SW_I2C_MSK_DAT_OUT);
-		/* set as output.*/
-		smi_set(sw_ctl, SW_I2C_MSK_DAT_EN);
-	}
-}
-
-static void smi_i2c_setscl(void *data, int state, u32 sw_ctl)
-{
-	struct smi_dev *dev = data;
-
-	if (state) {
-		/* set as input.*/
-		smi_clear(sw_ctl, SW_I2C_MSK_CLK_EN);
-	} else {
-		smi_clear(sw_ctl, SW_I2C_MSK_CLK_OUT);
-		/* set as output.*/
-		smi_set(sw_ctl, SW_I2C_MSK_CLK_EN);
-	}
-}
-
-static int smi_i2c_getsda(void *data, u32 sw_ctl)
-{
-	struct smi_dev *dev = data;
-	/* set as input.*/
-	smi_clear(sw_ctl, SW_I2C_MSK_DAT_EN);
-	udelay(1);
-	return (smi_read(sw_ctl) & SW_I2C_MSK_DAT_IN) ? 1 : 0;
-}
-
-static int smi_i2c_getscl(void *data, u32 sw_ctl)
-{
-	struct smi_dev *dev = data;
-	/* set as input.*/
-	smi_clear(sw_ctl, SW_I2C_MSK_CLK_EN);
-	udelay(1);
-	return (smi_read(sw_ctl) & SW_I2C_MSK_CLK_IN) ? 1 : 0;
-}
-/* i2c 0.*/
-static void smi_i2c0_setsda(void *data, int state)
-{
-	struct smi_dev *dev = data;
-
-	smi_i2c_setsda(dev, state, I2C_A_SW_CTL);
-}
-
-static void smi_i2c0_setscl(void *data, int state)
-{
-	struct smi_dev *dev = data;
-
-	smi_i2c_setscl(dev, state, I2C_A_SW_CTL);
-}
-
-static int smi_i2c0_getsda(void *data)
-{
-	struct smi_dev *dev = data;
-
-	return	smi_i2c_getsda(dev, I2C_A_SW_CTL);
-}
-
-static int smi_i2c0_getscl(void *data)
-{
-	struct smi_dev *dev = data;
-
-	return	smi_i2c_getscl(dev, I2C_A_SW_CTL);
-}
-/* i2c 1.*/
-static void smi_i2c1_setsda(void *data, int state)
-{
-	struct smi_dev *dev = data;
-
-	smi_i2c_setsda(dev, state, I2C_B_SW_CTL);
-}
-
-static void smi_i2c1_setscl(void *data, int state)
-{
-	struct smi_dev *dev = data;
-
-	smi_i2c_setscl(dev, state, I2C_B_SW_CTL);
-}
-
-static int smi_i2c1_getsda(void *data)
-{
-	struct smi_dev *dev = data;
-
-	return	smi_i2c_getsda(dev, I2C_B_SW_CTL);
-}
-
-static int smi_i2c1_getscl(void *data)
-{
-	struct smi_dev *dev = data;
-
-	return	smi_i2c_getscl(dev, I2C_B_SW_CTL);
-}
-
-static int smi_i2c_init(struct smi_dev *dev)
-{
-	int ret;
-
-	/* i2c bus 0 */
-	smi_i2c_cfg(dev, I2C_A_SW_CTL);
-	i2c_set_adapdata(&dev->i2c_bus[0], dev);
-	strcpy(dev->i2c_bus[0].name, "SMI-I2C0");
-	dev->i2c_bus[0].owner = THIS_MODULE;
-	dev->i2c_bus[0].dev.parent = &dev->pci_dev->dev;
-	dev->i2c_bus[0].algo_data = &dev->i2c_bit[0];
-	dev->i2c_bit[0].data = dev;
-	dev->i2c_bit[0].setsda = smi_i2c0_setsda;
-	dev->i2c_bit[0].setscl = smi_i2c0_setscl;
-	dev->i2c_bit[0].getsda = smi_i2c0_getsda;
-	dev->i2c_bit[0].getscl = smi_i2c0_getscl;
-	dev->i2c_bit[0].udelay = 12;
-	dev->i2c_bit[0].timeout = 10;
-	/* Raise SCL and SDA */
-	smi_i2c0_setsda(dev, 1);
-	smi_i2c0_setscl(dev, 1);
-
-	ret = i2c_bit_add_bus(&dev->i2c_bus[0]);
-	if (ret < 0)
-		return ret;
-
-	/* i2c bus 1 */
-	smi_i2c_cfg(dev, I2C_B_SW_CTL);
-	i2c_set_adapdata(&dev->i2c_bus[1], dev);
-	strcpy(dev->i2c_bus[1].name, "SMI-I2C1");
-	dev->i2c_bus[1].owner = THIS_MODULE;
-	dev->i2c_bus[1].dev.parent = &dev->pci_dev->dev;
-	dev->i2c_bus[1].algo_data = &dev->i2c_bit[1];
-	dev->i2c_bit[1].data = dev;
-	dev->i2c_bit[1].setsda = smi_i2c1_setsda;
-	dev->i2c_bit[1].setscl = smi_i2c1_setscl;
-	dev->i2c_bit[1].getsda = smi_i2c1_getsda;
-	dev->i2c_bit[1].getscl = smi_i2c1_getscl;
-	dev->i2c_bit[1].udelay = 12;
-	dev->i2c_bit[1].timeout = 10;
-	/* Raise SCL and SDA */
-	smi_i2c1_setsda(dev, 1);
-	smi_i2c1_setscl(dev, 1);
-
-	ret = i2c_bit_add_bus(&dev->i2c_bus[1]);
-	if (ret < 0)
-		i2c_del_adapter(&dev->i2c_bus[0]);
-
-	return ret;
-}
-
-static void smi_i2c_exit(struct smi_dev *dev)
-{
-	i2c_del_adapter(&dev->i2c_bus[0]);
-	i2c_del_adapter(&dev->i2c_bus[1]);
-}
-
-static int smi_read_eeprom(struct i2c_adapter *i2c, u16 reg, u8 *data, u16 size)
-{
-	int ret;
-	u8 b0[2] = { (reg >> 8) & 0xff, reg & 0xff };
-
-	struct i2c_msg msg[] = {
-		{ .addr = 0x50, .flags = 0,
-			.buf = b0, .len = 2 },
-		{ .addr = 0x50, .flags = I2C_M_RD,
-			.buf = data, .len = size }
-	};
-
-	ret = i2c_transfer(i2c, msg, 2);
-
-	if (ret != 2) {
-		dev_err(&i2c->dev, "%s: reg=0x%x (error=%d)\n",
-			__func__, reg, ret);
-		return ret;
-	}
-	return ret;
-}
-
-/* ts port interrupt operations */
-static void smi_port_disableInterrupt(struct smi_port *port)
-{
-	struct smi_dev *dev = port->dev;
-
-	smi_write(MSI_INT_ENA_CLR,
-		(port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
-}
-
-static void smi_port_enableInterrupt(struct smi_port *port)
-{
-	struct smi_dev *dev = port->dev;
-
-	smi_write(MSI_INT_ENA_SET,
-		(port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
-}
-
-static void smi_port_clearInterrupt(struct smi_port *port)
-{
-	struct smi_dev *dev = port->dev;
-
-	smi_write(MSI_INT_STATUS_CLR,
-		(port->_dmaInterruptCH0 | port->_dmaInterruptCH1));
-}
-
-/* tasklet handler: DMA data to dmx.*/
-static void smi_dma_xfer(unsigned long data)
-{
-	struct smi_port *port = (struct smi_port *) data;
-	struct smi_dev *dev = port->dev;
-	u32 intr_status, finishedData, dmaManagement;
-	u8 dmaChan0State, dmaChan1State;
-
-	intr_status = port->_int_status;
-	dmaManagement = smi_read(port->DMA_MANAGEMENT);
-	dmaChan0State = (u8)((dmaManagement & 0x00000030) >> 4);
-	dmaChan1State = (u8)((dmaManagement & 0x00300000) >> 20);
-
-	/* CH-0 DMA interrupt.*/
-	if ((intr_status & port->_dmaInterruptCH0) && (dmaChan0State == 0x01)) {
-		dev_dbg(&dev->pci_dev->dev,
-			"Port[%d]-DMA CH0 engine complete successful !\n",
-			port->idx);
-		finishedData = smi_read(port->DMA_CHAN0_TRANS_STATE);
-		finishedData &= 0x003FFFFF;
-		/* value of DMA_PORT0_CHAN0_TRANS_STATE register [21:0]
-		 * indicate dma total transfer length and
-		 * zero of [21:0] indicate dma total transfer length
-		 * equal to 0x400000 (4MB)*/
-		if (finishedData == 0)
-			finishedData = 0x00400000;
-		if (finishedData != SMI_TS_DMA_BUF_SIZE) {
-			dev_dbg(&dev->pci_dev->dev,
-				"DMA CH0 engine complete length mismatched, finish data=%d !\n",
-				finishedData);
-		}
-		dvb_dmx_swfilter_packets(&port->demux,
-			port->cpu_addr[0], (finishedData / 188));
-		/*dvb_dmx_swfilter(&port->demux,
-			port->cpu_addr[0], finishedData);*/
-	}
-	/* CH-1 DMA interrupt.*/
-	if ((intr_status & port->_dmaInterruptCH1) && (dmaChan1State == 0x01)) {
-		dev_dbg(&dev->pci_dev->dev,
-			"Port[%d]-DMA CH1 engine complete successful !\n",
-			port->idx);
-		finishedData = smi_read(port->DMA_CHAN1_TRANS_STATE);
-		finishedData &= 0x003FFFFF;
-		/* value of DMA_PORT0_CHAN0_TRANS_STATE register [21:0]
-		 * indicate dma total transfer length and
-		 * zero of [21:0] indicate dma total transfer length
-		 * equal to 0x400000 (4MB)*/
-		if (finishedData == 0)
-			finishedData = 0x00400000;
-		if (finishedData != SMI_TS_DMA_BUF_SIZE) {
-			dev_dbg(&dev->pci_dev->dev,
-				"DMA CH1 engine complete length mismatched, finish data=%d !\n",
-				finishedData);
-		}
-		dvb_dmx_swfilter_packets(&port->demux,
-			port->cpu_addr[1], (finishedData / 188));
-		/*dvb_dmx_swfilter(&port->demux,
-			port->cpu_addr[1], finishedData);*/
-	}
-	/* restart DMA.*/
-	if (intr_status & port->_dmaInterruptCH0)
-		dmaManagement |= 0x00000002;
-	if (intr_status & port->_dmaInterruptCH1)
-		dmaManagement |= 0x00020000;
-	smi_write(port->DMA_MANAGEMENT, dmaManagement);
-	/* Re-enable interrupts */
-	smi_port_enableInterrupt(port);
-}
-
-static void smi_port_dma_free(struct smi_port *port)
-{
-	if (port->cpu_addr[0]) {
-		pci_free_consistent(port->dev->pci_dev, SMI_TS_DMA_BUF_SIZE,
-				    port->cpu_addr[0], port->dma_addr[0]);
-		port->cpu_addr[0] = NULL;
-	}
-	if (port->cpu_addr[1]) {
-		pci_free_consistent(port->dev->pci_dev, SMI_TS_DMA_BUF_SIZE,
-				    port->cpu_addr[1], port->dma_addr[1]);
-		port->cpu_addr[1] = NULL;
-	}
-}
-
-static int smi_port_init(struct smi_port *port, int dmaChanUsed)
-{
-	dev_dbg(&port->dev->pci_dev->dev,
-		"%s, port %d, dmaused %d\n", __func__, port->idx, dmaChanUsed);
-	port->enable = 0;
-	if (port->idx == 0) {
-		/* Port A */
-		port->_dmaInterruptCH0 = dmaChanUsed & 0x01;
-		port->_dmaInterruptCH1 = dmaChanUsed & 0x02;
-
-		port->DMA_CHAN0_ADDR_LOW	= DMA_PORTA_CHAN0_ADDR_LOW;
-		port->DMA_CHAN0_ADDR_HI		= DMA_PORTA_CHAN0_ADDR_HI;
-		port->DMA_CHAN0_TRANS_STATE	= DMA_PORTA_CHAN0_TRANS_STATE;
-		port->DMA_CHAN0_CONTROL		= DMA_PORTA_CHAN0_CONTROL;
-		port->DMA_CHAN1_ADDR_LOW	= DMA_PORTA_CHAN1_ADDR_LOW;
-		port->DMA_CHAN1_ADDR_HI		= DMA_PORTA_CHAN1_ADDR_HI;
-		port->DMA_CHAN1_TRANS_STATE	= DMA_PORTA_CHAN1_TRANS_STATE;
-		port->DMA_CHAN1_CONTROL		= DMA_PORTA_CHAN1_CONTROL;
-		port->DMA_MANAGEMENT		= DMA_PORTA_MANAGEMENT;
-	} else {
-		/* Port B */
-		port->_dmaInterruptCH0 = (dmaChanUsed << 2) & 0x04;
-		port->_dmaInterruptCH1 = (dmaChanUsed << 2) & 0x08;
-
-		port->DMA_CHAN0_ADDR_LOW	= DMA_PORTB_CHAN0_ADDR_LOW;
-		port->DMA_CHAN0_ADDR_HI		= DMA_PORTB_CHAN0_ADDR_HI;
-		port->DMA_CHAN0_TRANS_STATE	= DMA_PORTB_CHAN0_TRANS_STATE;
-		port->DMA_CHAN0_CONTROL		= DMA_PORTB_CHAN0_CONTROL;
-		port->DMA_CHAN1_ADDR_LOW	= DMA_PORTB_CHAN1_ADDR_LOW;
-		port->DMA_CHAN1_ADDR_HI		= DMA_PORTB_CHAN1_ADDR_HI;
-		port->DMA_CHAN1_TRANS_STATE	= DMA_PORTB_CHAN1_TRANS_STATE;
-		port->DMA_CHAN1_CONTROL		= DMA_PORTB_CHAN1_CONTROL;
-		port->DMA_MANAGEMENT		= DMA_PORTB_MANAGEMENT;
-	}
-
-	if (port->_dmaInterruptCH0) {
-		port->cpu_addr[0] = pci_alloc_consistent(port->dev->pci_dev,
-					SMI_TS_DMA_BUF_SIZE,
-					&port->dma_addr[0]);
-		if (!port->cpu_addr[0]) {
-			dev_err(&port->dev->pci_dev->dev,
-				"Port[%d] DMA CH0 memory allocation failed!\n",
-				port->idx);
-			goto err;
-		}
-	}
-
-	if (port->_dmaInterruptCH1) {
-		port->cpu_addr[1] = pci_alloc_consistent(port->dev->pci_dev,
-					SMI_TS_DMA_BUF_SIZE,
-					&port->dma_addr[1]);
-		if (!port->cpu_addr[1]) {
-			dev_err(&port->dev->pci_dev->dev,
-				"Port[%d] DMA CH1 memory allocation failed!\n",
-				port->idx);
-			goto err;
-		}
-	}
-
-	smi_port_disableInterrupt(port);
-	tasklet_init(&port->tasklet, smi_dma_xfer, (unsigned long)port);
-	tasklet_disable(&port->tasklet);
-	port->enable = 1;
-	return 0;
-err:
-	smi_port_dma_free(port);
-	return -ENOMEM;
-}
-
-static void smi_port_exit(struct smi_port *port)
-{
-	smi_port_disableInterrupt(port);
-	tasklet_kill(&port->tasklet);
-	smi_port_dma_free(port);
-	port->enable = 0;
-}
-
-static int smi_port_irq(struct smi_port *port, u32 int_status)
-{
-	u32 port_req_irq = port->_dmaInterruptCH0 | port->_dmaInterruptCH1;
-	int handled = 0;
-
-	if (int_status & port_req_irq) {
-		smi_port_disableInterrupt(port);
-		port->_int_status = int_status;
-		smi_port_clearInterrupt(port);
-		tasklet_schedule(&port->tasklet);
-		handled = 1;
-	}
-	return handled;
-}
-
-static irqreturn_t smi_irq_handler(int irq, void *dev_id)
-{
-	struct smi_dev *dev = dev_id;
-	struct smi_port *port0 = &dev->ts_port[0];
-	struct smi_port *port1 = &dev->ts_port[1];
-	int handled = 0;
-
-	u32 intr_status = smi_read(MSI_INT_STATUS);
-
-	/* ts0 interrupt.*/
-	if (dev->info->ts_0)
-		handled += smi_port_irq(port0, intr_status);
-
-	/* ts1 interrupt.*/
-	if (dev->info->ts_1)
-		handled += smi_port_irq(port1, intr_status);
-
-	return IRQ_RETVAL(handled);
-}
-
-static struct i2c_client *smi_add_i2c_client(struct i2c_adapter *adapter,
-			struct i2c_board_info *info)
-{
-	struct i2c_client *client;
-
-	request_module(info->type);
-	client = i2c_new_device(adapter, info);
-	if (client == NULL || client->dev.driver == NULL)
-		goto err_add_i2c_client;
-
-	if (!try_module_get(client->dev.driver->owner)) {
-		i2c_unregister_device(client);
-		goto err_add_i2c_client;
-	}
-	return client;
-
-err_add_i2c_client:
-	client = NULL;
-	return client;
-}
-
-static void smi_del_i2c_client(struct i2c_client *client)
-{
-	module_put(client->dev.driver->owner);
-	i2c_unregister_device(client);
-}
-
-static const struct m88ds3103_config smi_dvbsky_m88ds3103_cfg = {
-	.i2c_addr = 0x68,
-	.clock = 27000000,
-	.i2c_wr_max = 33,
-	.clock_out = 0,
-	.ts_mode = M88DS3103_TS_PARALLEL,
-	.ts_clk = 16000,
-	.ts_clk_pol = 1,
-	.agc = 0x99,
-	.lnb_hv_pol = 0,
-	.lnb_en_pol = 1,
-};
-
-static int smi_dvbsky_m88ds3103_fe_attach(struct smi_port *port)
-{
-	int ret = 0;
-	struct smi_dev *dev = port->dev;
-	struct i2c_adapter *i2c;
-	/* tuner I2C module */
-	struct i2c_adapter *tuner_i2c_adapter;
-	struct i2c_client *tuner_client;
-	struct i2c_board_info tuner_info;
-	struct ts2020_config ts2020_config = {};
-	memset(&tuner_info, 0, sizeof(struct i2c_board_info));
-	i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
-
-	/* attach demod */
-	port->fe = dvb_attach(m88ds3103_attach,
-			&smi_dvbsky_m88ds3103_cfg, i2c, &tuner_i2c_adapter);
-	if (!port->fe) {
-		ret = -ENODEV;
-		return ret;
-	}
-	/* attach tuner */
-	ts2020_config.fe = port->fe;
-	strlcpy(tuner_info.type, "ts2020", I2C_NAME_SIZE);
-	tuner_info.addr = 0x60;
-	tuner_info.platform_data = &ts2020_config;
-	tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
-	if (!tuner_client) {
-		ret = -ENODEV;
-		goto err_tuner_i2c_device;
-	}
-
-	/* delegate signal strength measurement to tuner */
-	port->fe->ops.read_signal_strength =
-			port->fe->ops.tuner_ops.get_rf_strength;
-
-	port->i2c_client_tuner = tuner_client;
-	return ret;
-
-err_tuner_i2c_device:
-	dvb_frontend_detach(port->fe);
-	return ret;
-}
-
-static const struct m88ds3103_config smi_dvbsky_m88rs6000_cfg = {
-	.i2c_addr = 0x69,
-	.clock = 27000000,
-	.i2c_wr_max = 33,
-	.ts_mode = M88DS3103_TS_PARALLEL,
-	.ts_clk = 16000,
-	.ts_clk_pol = 1,
-	.agc = 0x99,
-	.lnb_hv_pol = 0,
-	.lnb_en_pol = 1,
-};
-
-static int smi_dvbsky_m88rs6000_fe_attach(struct smi_port *port)
-{
-	int ret = 0;
-	struct smi_dev *dev = port->dev;
-	struct i2c_adapter *i2c;
-	/* tuner I2C module */
-	struct i2c_adapter *tuner_i2c_adapter;
-	struct i2c_client *tuner_client;
-	struct i2c_board_info tuner_info;
-	struct m88rs6000t_config m88rs6000t_config;
-
-	memset(&tuner_info, 0, sizeof(struct i2c_board_info));
-	i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
-
-	/* attach demod */
-	port->fe = dvb_attach(m88ds3103_attach,
-			&smi_dvbsky_m88rs6000_cfg, i2c, &tuner_i2c_adapter);
-	if (!port->fe) {
-		ret = -ENODEV;
-		return ret;
-	}
-	/* attach tuner */
-	m88rs6000t_config.fe = port->fe;
-	strlcpy(tuner_info.type, "m88rs6000t", I2C_NAME_SIZE);
-	tuner_info.addr = 0x21;
-	tuner_info.platform_data = &m88rs6000t_config;
-	tuner_client = smi_add_i2c_client(tuner_i2c_adapter, &tuner_info);
-	if (!tuner_client) {
-		ret = -ENODEV;
-		goto err_tuner_i2c_device;
-	}
-
-	/* delegate signal strength measurement to tuner */
-	port->fe->ops.read_signal_strength =
-			port->fe->ops.tuner_ops.get_rf_strength;
-
-	port->i2c_client_tuner = tuner_client;
-	return ret;
-
-err_tuner_i2c_device:
-	dvb_frontend_detach(port->fe);
-	return ret;
-}
-
-static int smi_dvbsky_sit2_fe_attach(struct smi_port *port)
-{
-	int ret = 0;
-	struct smi_dev *dev = port->dev;
-	struct i2c_adapter *i2c;
-	struct i2c_adapter *tuner_i2c_adapter;
-	struct i2c_client *client_tuner, *client_demod;
-	struct i2c_board_info client_info;
-	struct si2168_config si2168_config;
-	struct si2157_config si2157_config;
-
-	/* select i2c bus */
-	i2c = (port->idx == 0) ? &dev->i2c_bus[0] : &dev->i2c_bus[1];
-
-	/* attach demod */
-	memset(&si2168_config, 0, sizeof(si2168_config));
-	si2168_config.i2c_adapter = &tuner_i2c_adapter;
-	si2168_config.fe = &port->fe;
-	si2168_config.ts_mode = SI2168_TS_PARALLEL;
-
-	memset(&client_info, 0, sizeof(struct i2c_board_info));
-	strlcpy(client_info.type, "si2168", I2C_NAME_SIZE);
-	client_info.addr = 0x64;
-	client_info.platform_data = &si2168_config;
-
-	client_demod = smi_add_i2c_client(i2c, &client_info);
-	if (!client_demod) {
-		ret = -ENODEV;
-		return ret;
-	}
-	port->i2c_client_demod = client_demod;
-
-	/* attach tuner */
-	memset(&si2157_config, 0, sizeof(si2157_config));
-	si2157_config.fe = port->fe;
-	si2157_config.if_port = 1;
-
-	memset(&client_info, 0, sizeof(struct i2c_board_info));
-	strlcpy(client_info.type, "si2157", I2C_NAME_SIZE);
-	client_info.addr = 0x60;
-	client_info.platform_data = &si2157_config;
-
-	client_tuner = smi_add_i2c_client(tuner_i2c_adapter, &client_info);
-	if (!client_tuner) {
-		smi_del_i2c_client(port->i2c_client_demod);
-		port->i2c_client_demod = NULL;
-		ret = -ENODEV;
-		return ret;
-	}
-	port->i2c_client_tuner = client_tuner;
-	return ret;
-}
-
-static int smi_fe_init(struct smi_port *port)
-{
-	int ret = 0;
-	struct smi_dev *dev = port->dev;
-	struct dvb_adapter *adap = &port->dvb_adapter;
-	u8 mac_ee[16];
-
-	dev_dbg(&port->dev->pci_dev->dev,
-		"%s: port %d, fe_type = %d\n",
-		__func__, port->idx, port->fe_type);
-	switch (port->fe_type) {
-	case DVBSKY_FE_M88DS3103:
-		ret = smi_dvbsky_m88ds3103_fe_attach(port);
-		break;
-	case DVBSKY_FE_M88RS6000:
-		ret = smi_dvbsky_m88rs6000_fe_attach(port);
-		break;
-	case DVBSKY_FE_SIT2:
-		ret = smi_dvbsky_sit2_fe_attach(port);
-		break;
-	}
-	if (ret < 0)
-		return ret;
-
-	/* register dvb frontend */
-	ret = dvb_register_frontend(adap, port->fe);
-	if (ret < 0) {
-		if (port->i2c_client_tuner)
-			smi_del_i2c_client(port->i2c_client_tuner);
-		if (port->i2c_client_demod)
-			smi_del_i2c_client(port->i2c_client_demod);
-		dvb_frontend_detach(port->fe);
-		return ret;
-	}
-	/* init MAC.*/
-	ret = smi_read_eeprom(&dev->i2c_bus[0], 0xc0, mac_ee, 16);
-	dev_info(&port->dev->pci_dev->dev,
-		"DVBSky SMI PCIe MAC= %pM\n", mac_ee + (port->idx)*8);
-	memcpy(adap->proposed_mac, mac_ee + (port->idx)*8, 6);
-	return ret;
-}
-
-static void smi_fe_exit(struct smi_port *port)
-{
-	dvb_unregister_frontend(port->fe);
-	/* remove I2C demod and tuner */
-	if (port->i2c_client_tuner)
-		smi_del_i2c_client(port->i2c_client_tuner);
-	if (port->i2c_client_demod)
-		smi_del_i2c_client(port->i2c_client_demod);
-	dvb_frontend_detach(port->fe);
-}
-
-static int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
-			    int (*start_feed)(struct dvb_demux_feed *),
-			    int (*stop_feed)(struct dvb_demux_feed *),
-			    void *priv)
-{
-	dvbdemux->priv = priv;
-
-	dvbdemux->filternum = 256;
-	dvbdemux->feednum = 256;
-	dvbdemux->start_feed = start_feed;
-	dvbdemux->stop_feed = stop_feed;
-	dvbdemux->write_to_decoder = NULL;
-	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
-				      DMX_SECTION_FILTERING |
-				      DMX_MEMORY_BASED_FILTERING);
-	return dvb_dmx_init(dvbdemux);
-}
-
-static int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
-			       struct dvb_demux *dvbdemux,
-			       struct dmx_frontend *hw_frontend,
-			       struct dmx_frontend *mem_frontend,
-			       struct dvb_adapter *dvb_adapter)
-{
-	int ret;
-
-	dmxdev->filternum = 256;
-	dmxdev->demux = &dvbdemux->dmx;
-	dmxdev->capabilities = 0;
-	ret = dvb_dmxdev_init(dmxdev, dvb_adapter);
-	if (ret < 0)
-		return ret;
-
-	hw_frontend->source = DMX_FRONTEND_0;
-	dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend);
-	mem_frontend->source = DMX_MEMORY_FE;
-	dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend);
-	return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend);
-}
-
-static u32 smi_config_DMA(struct smi_port *port)
-{
-	struct smi_dev *dev = port->dev;
-	u32 totalLength = 0, dmaMemPtrLow, dmaMemPtrHi, dmaCtlReg;
-	u8 chanLatencyTimer = 0, dmaChanEnable = 1, dmaTransStart = 1;
-	u32 dmaManagement = 0, tlpTransUnit = DMA_TRANS_UNIT_188;
-	u8 tlpTc = 0, tlpTd = 1, tlpEp = 0, tlpAttr = 0;
-	u64 mem;
-
-	dmaManagement = smi_read(port->DMA_MANAGEMENT);
-	/* Setup Channel-0 */
-	if (port->_dmaInterruptCH0) {
-		totalLength = SMI_TS_DMA_BUF_SIZE;
-		mem = port->dma_addr[0];
-		dmaMemPtrLow = mem & 0xffffffff;
-		dmaMemPtrHi = mem >> 32;
-		dmaCtlReg = (totalLength) | (tlpTransUnit << 22) | (tlpTc << 25)
-			| (tlpTd << 28) | (tlpEp << 29) | (tlpAttr << 30);
-		dmaManagement |= dmaChanEnable | (dmaTransStart << 1)
-			| (chanLatencyTimer << 8);
-		/* write DMA register, start DMA engine */
-		smi_write(port->DMA_CHAN0_ADDR_LOW, dmaMemPtrLow);
-		smi_write(port->DMA_CHAN0_ADDR_HI, dmaMemPtrHi);
-		smi_write(port->DMA_CHAN0_CONTROL, dmaCtlReg);
-	}
-	/* Setup Channel-1 */
-	if (port->_dmaInterruptCH1) {
-		totalLength = SMI_TS_DMA_BUF_SIZE;
-		mem = port->dma_addr[1];
-		dmaMemPtrLow = mem & 0xffffffff;
-		dmaMemPtrHi = mem >> 32;
-		dmaCtlReg = (totalLength) | (tlpTransUnit << 22) | (tlpTc << 25)
-			| (tlpTd << 28) | (tlpEp << 29) | (tlpAttr << 30);
-		dmaManagement |= (dmaChanEnable << 16) | (dmaTransStart << 17)
-			| (chanLatencyTimer << 24);
-		/* write DMA register, start DMA engine */
-		smi_write(port->DMA_CHAN1_ADDR_LOW, dmaMemPtrLow);
-		smi_write(port->DMA_CHAN1_ADDR_HI, dmaMemPtrHi);
-		smi_write(port->DMA_CHAN1_CONTROL, dmaCtlReg);
-	}
-	return dmaManagement;
-}
-
-static int smi_start_feed(struct dvb_demux_feed *dvbdmxfeed)
-{
-	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
-	struct smi_port *port = dvbdmx->priv;
-	struct smi_dev *dev = port->dev;
-	u32 dmaManagement;
-
-	if (port->users++ == 0) {
-		dmaManagement = smi_config_DMA(port);
-		smi_port_clearInterrupt(port);
-		smi_port_enableInterrupt(port);
-		smi_write(port->DMA_MANAGEMENT, dmaManagement);
-		tasklet_enable(&port->tasklet);
-	}
-	return port->users;
-}
-
-static int smi_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
-{
-	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
-	struct smi_port *port = dvbdmx->priv;
-	struct smi_dev *dev = port->dev;
-
-	if (--port->users)
-		return port->users;
-
-	tasklet_disable(&port->tasklet);
-	smi_port_disableInterrupt(port);
-	smi_clear(port->DMA_MANAGEMENT, 0x30003);
-	return 0;
-}
-
-static int smi_dvb_init(struct smi_port *port)
-{
-	int ret;
-	struct dvb_adapter *adap = &port->dvb_adapter;
-	struct dvb_demux *dvbdemux = &port->demux;
-
-	dev_dbg(&port->dev->pci_dev->dev,
-		"%s, port %d\n", __func__, port->idx);
-
-	ret = dvb_register_adapter(adap, "SMI_DVB", THIS_MODULE,
-				   &port->dev->pci_dev->dev,
-				   adapter_nr);
-	if (ret < 0) {
-		dev_err(&port->dev->pci_dev->dev, "Fail to register DVB adapter.\n");
-		return ret;
-	}
-	ret = my_dvb_dmx_ts_card_init(dvbdemux, "SW demux",
-				      smi_start_feed,
-				      smi_stop_feed, port);
-	if (ret < 0)
-		goto err_del_dvb_register_adapter;
-
-	ret = my_dvb_dmxdev_ts_card_init(&port->dmxdev, &port->demux,
-					 &port->hw_frontend,
-					 &port->mem_frontend, adap);
-	if (ret < 0)
-		goto err_del_dvb_dmx;
-
-	ret = dvb_net_init(adap, &port->dvbnet, port->dmxdev.demux);
-	if (ret < 0)
-		goto err_del_dvb_dmxdev;
-	return 0;
-err_del_dvb_dmxdev:
-	dvbdemux->dmx.close(&dvbdemux->dmx);
-	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->hw_frontend);
-	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->mem_frontend);
-	dvb_dmxdev_release(&port->dmxdev);
-err_del_dvb_dmx:
-	dvb_dmx_release(&port->demux);
-err_del_dvb_register_adapter:
-	dvb_unregister_adapter(&port->dvb_adapter);
-	return ret;
-}
-
-static void smi_dvb_exit(struct smi_port *port)
-{
-	struct dvb_demux *dvbdemux = &port->demux;
-
-	dvb_net_release(&port->dvbnet);
-
-	dvbdemux->dmx.close(&dvbdemux->dmx);
-	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->hw_frontend);
-	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &port->mem_frontend);
-	dvb_dmxdev_release(&port->dmxdev);
-	dvb_dmx_release(&port->demux);
-
-	dvb_unregister_adapter(&port->dvb_adapter);
-}
-
-static int smi_port_attach(struct smi_dev *dev,
-		struct smi_port *port, int index)
-{
-	int ret, dmachs;
-
-	port->dev = dev;
-	port->idx = index;
-	port->fe_type = (index == 0) ? dev->info->fe_0 : dev->info->fe_1;
-	dmachs = (index == 0) ? dev->info->ts_0 : dev->info->ts_1;
-	/* port init.*/
-	ret = smi_port_init(port, dmachs);
-	if (ret < 0)
-		return ret;
-	/* dvb init.*/
-	ret = smi_dvb_init(port);
-	if (ret < 0)
-		goto err_del_port_init;
-	/* fe init.*/
-	ret = smi_fe_init(port);
-	if (ret < 0)
-		goto err_del_dvb_init;
-	return 0;
-err_del_dvb_init:
-	smi_dvb_exit(port);
-err_del_port_init:
-	smi_port_exit(port);
-	return ret;
-}
-
-static void smi_port_detach(struct smi_port *port)
-{
-	smi_fe_exit(port);
-	smi_dvb_exit(port);
-	smi_port_exit(port);
-}
-
-static int smi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
-	struct smi_dev *dev;
-	int ret = -ENOMEM;
-
-	if (pci_enable_device(pdev) < 0)
-		return -ENODEV;
-
-	dev = kzalloc(sizeof(struct smi_dev), GFP_KERNEL);
-	if (!dev) {
-		ret = -ENOMEM;
-		goto err_pci_disable_device;
-	}
-
-	dev->pci_dev = pdev;
-	pci_set_drvdata(pdev, dev);
-	dev->info = (struct smi_cfg_info *) id->driver_data;
-	dev_info(&dev->pci_dev->dev,
-		"card detected: %s\n", dev->info->name);
-
-	dev->nr = dev->info->type;
-	dev->lmmio = ioremap(pci_resource_start(dev->pci_dev, 0),
-			    pci_resource_len(dev->pci_dev, 0));
-	if (!dev->lmmio) {
-		ret = -ENOMEM;
-		goto err_kfree;
-	}
-
-	/* should we set to 32bit DMA? */
-	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-	if (ret < 0)
-		goto err_pci_iounmap;
-
-	pci_set_master(pdev);
-
-	ret = smi_hw_init(dev);
-	if (ret < 0)
-		goto err_pci_iounmap;
-
-	ret = smi_i2c_init(dev);
-	if (ret < 0)
-		goto err_pci_iounmap;
-
-	if (dev->info->ts_0) {
-		ret = smi_port_attach(dev, &dev->ts_port[0], 0);
-		if (ret < 0)
-			goto err_del_i2c_adaptor;
-	}
-
-	if (dev->info->ts_1) {
-		ret = smi_port_attach(dev, &dev->ts_port[1], 1);
-		if (ret < 0)
-			goto err_del_port0_attach;
-	}
-
-#ifdef CONFIG_PCI_MSI /* to do msi interrupt.???*/
-	if (pci_msi_enabled())
-		ret = pci_enable_msi(dev->pci_dev);
-	if (ret)
-		dev_info(&dev->pci_dev->dev, "MSI not available.\n");
-#endif
-
-	ret = request_irq(dev->pci_dev->irq, smi_irq_handler,
-			   IRQF_SHARED, "SMI_PCIE", dev);
-	if (ret < 0)
-		goto err_del_port1_attach;
-
-	return 0;
-
-err_del_port1_attach:
-	if (dev->info->ts_1)
-		smi_port_detach(&dev->ts_port[1]);
-err_del_port0_attach:
-	if (dev->info->ts_0)
-		smi_port_detach(&dev->ts_port[0]);
-err_del_i2c_adaptor:
-	smi_i2c_exit(dev);
-err_pci_iounmap:
-	iounmap(dev->lmmio);
-err_kfree:
-	pci_set_drvdata(pdev, NULL);
-	kfree(dev);
-err_pci_disable_device:
-	pci_disable_device(pdev);
-	return ret;
-}
-
-static void smi_remove(struct pci_dev *pdev)
-{
-	struct smi_dev *dev = pci_get_drvdata(pdev);
-
-	smi_write(MSI_INT_ENA_CLR, ALL_INT);
-	free_irq(dev->pci_dev->irq, dev);
-#ifdef CONFIG_PCI_MSI
-	pci_disable_msi(dev->pci_dev);
-#endif
-	if (dev->info->ts_1)
-		smi_port_detach(&dev->ts_port[1]);
-	if (dev->info->ts_0)
-		smi_port_detach(&dev->ts_port[0]);
-
-	smi_i2c_exit(dev);
-	iounmap(dev->lmmio);
-	pci_set_drvdata(pdev, NULL);
-	pci_disable_device(pdev);
-	kfree(dev);
-}
-
-/* DVBSky cards */
-static struct smi_cfg_info dvbsky_s950_cfg = {
-	.type = SMI_DVBSKY_S950,
-	.name = "DVBSky S950 V3",
-	.ts_0 = SMI_TS_NULL,
-	.ts_1 = SMI_TS_DMA_BOTH,
-	.fe_0 = DVBSKY_FE_NULL,
-	.fe_1 = DVBSKY_FE_M88DS3103,
-};
-
-static struct smi_cfg_info dvbsky_s952_cfg = {
-	.type = SMI_DVBSKY_S952,
-	.name = "DVBSky S952 V3",
-	.ts_0 = SMI_TS_DMA_BOTH,
-	.ts_1 = SMI_TS_DMA_BOTH,
-	.fe_0 = DVBSKY_FE_M88RS6000,
-	.fe_1 = DVBSKY_FE_M88RS6000,
-};
-
-static struct smi_cfg_info dvbsky_t9580_cfg = {
-	.type = SMI_DVBSKY_T9580,
-	.name = "DVBSky T9580 V3",
-	.ts_0 = SMI_TS_DMA_BOTH,
-	.ts_1 = SMI_TS_DMA_BOTH,
-	.fe_0 = DVBSKY_FE_SIT2,
-	.fe_1 = DVBSKY_FE_M88DS3103,
-};
-
-/* PCI IDs */
-#define SMI_ID(_subvend, _subdev, _driverdata) {	\
-	.vendor      = SMI_VID,    .device    = SMI_PID, \
-	.subvendor   = _subvend, .subdevice = _subdev, \
-	.driver_data = (unsigned long)&_driverdata }
-
-static const struct pci_device_id smi_id_table[] = {
-	SMI_ID(0x4254, 0x0550, dvbsky_s950_cfg),
-	SMI_ID(0x4254, 0x0552, dvbsky_s952_cfg),
-	SMI_ID(0x4254, 0x5580, dvbsky_t9580_cfg),
-	{0}
-};
-MODULE_DEVICE_TABLE(pci, smi_id_table);
-
-static struct pci_driver smipcie_driver = {
-	.name = "SMI PCIe driver",
-	.id_table = smi_id_table,
-	.probe = smi_probe,
-	.remove = smi_remove,
-};
-
-module_pci_driver(smipcie_driver);
-
-MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
-MODULE_DESCRIPTION("SMI PCIe driver");
-MODULE_LICENSE("GPL");