Release 4.7 drivers/media/pci/smipcie/smipcie-main.c

Directory: drivers/media/pci/smipcie
/*
 * 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;
}

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nibble max nibble max 198 100.00% 1 100.00%
Total 198 100.00% 1 100.00%

/* 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);
}

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nibble max nibble max 75 100.00% 1 100.00%
Total 75 100.00% 1 100.00%



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);
	}
}

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nibble max nibble max 49 100.00% 1 100.00%
Total 49 100.00% 1 100.00%



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);
	}
}

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Total 55 100.00% 1 100.00%



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;
}

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nibble max nibble max 47 100.00% 1 100.00%
Total 47 100.00% 1 100.00%



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;
}
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nibble max nibble max 47 100.00% 1 100.00%
Total 47 100.00% 1 100.00%

/* 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);
}

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nibble max nibble max 29 100.00% 1 100.00%
Total 29 100.00% 1 100.00%



static void smi_i2c0_setscl(void *data, int state)
{
	struct smi_dev *dev = data;

	smi_i2c_setscl(dev, state, I2C_A_SW_CTL);
}

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nibble max nibble max 29 100.00% 1 100.00%
Total 29 100.00% 1 100.00%



static int smi_i2c0_getsda(void *data)
{
	struct smi_dev *dev = data;

	return	smi_i2c_getsda(dev, I2C_A_SW_CTL);
}

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Total 25 100.00% 1 100.00%



static int smi_i2c0_getscl(void *data)
{
	struct smi_dev *dev = data;

	return	smi_i2c_getscl(dev, I2C_A_SW_CTL);
}
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Total 25 100.00% 1 100.00%

/* 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);
}

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static void smi_i2c1_setscl(void *data, int state)
{
	struct smi_dev *dev = data;

	smi_i2c_setscl(dev, state, I2C_B_SW_CTL);
}

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Total 29 100.00% 1 100.00%



static int smi_i2c1_getsda(void *data)
{
	struct smi_dev *dev = data;

	return	smi_i2c_getsda(dev, I2C_B_SW_CTL);
}

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Total 25 100.00% 1 100.00%



static int smi_i2c1_getscl(void *data)
{
	struct smi_dev *dev = data;

	return	smi_i2c_getscl(dev, I2C_B_SW_CTL);
}

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Total 25 100.00% 1 100.00%



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;
}

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nibble max nibble max 415 100.00% 1 100.00%
Total 415 100.00% 1 100.00%



static void smi_i2c_exit(struct smi_dev *dev)
{
	i2c_del_adapter(&dev->i2c_bus[0]);
	i2c_del_adapter(&dev->i2c_bus[1]);
}

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nibble max nibble max 33 100.00% 1 100.00%
Total 33 100.00% 1 100.00%



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;
}

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nibble max nibble max 136 100.00% 1 100.00%
Total 136 100.00% 1 100.00%

/* 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));
}

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nibble max nibble max 35 100.00% 1 100.00%
Total 35 100.00% 1 100.00%



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));
}

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nibble max nibble max 35 100.00% 1 100.00%
Total 35 100.00% 1 100.00%



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));
}

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Total 35 100.00% 1 100.00%

/* 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);
}

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nibble max nibble max 334 100.00% 1 100.00%
Total 334 100.00% 1 100.00%



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;
	}
}

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nibble max nibble max 101 100.00% 1 100.00%
Total 101 100.00% 1 100.00%



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;
}

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nibble max nibble max 388 100.00% 1 100.00%
Total 388 100.00% 1 100.00%



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;
}

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nibble max nibble max 35 100.00% 1 100.00%
Total 35 100.00% 1 100.00%



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;
}

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nibble max nibble max 69 100.00% 2 100.00%
Total 69 100.00% 2 100.00%



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];
	struct smi_rc *ir = &dev->ir;
	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);

	/* ir interrupt.*/
	handled += smi_ir_irq(ir, intr_status);

	return IRQ_RETVAL(handled);
}

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nibble max nibble max 121 100.00% 3 100.00%
Total 121 100.00% 3 100.00%



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;
}

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nibble max nibble max 92 100.00% 1 100.00%
Total 92 100.00% 1 100.00%



static void smi_del_i2c_client(struct i2c_client *client)
{
	module_put(client->dev.driver->owner);
	i2c_unregister_device(client);
}

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nibble max nibble max 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%


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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 218 97.32% 2 66.67%
antti palosaari antti palosaari 6 2.68% 1 33.33%
Total 224 100.00% 3 100.00%


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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 222 100.00% 2 100.00%
Total 222 100.00% 2 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 294 98.00% 1 50.00%
olli salonen olli salonen 6 2.00% 1 50.00%
Total 300 100.00% 2 100.00%



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,
		"%s port %d MAC: %pM\n", dev->info->name,
		port->idx, mac_ee + (port->idx)*8);
	memcpy(adap->proposed_mac, mac_ee + (port->idx)*8, 6);
	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 236 95.55% 4 80.00%
olli salonen olli salonen 11 4.45% 1 20.00%
Total 247 100.00% 5 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 52 100.00% 2 100.00%
Total 52 100.00% 2 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 97 100.00% 1 100.00%
Total 97 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 128 100.00% 1 100.00%
Total 128 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 317 100.00% 1 100.00%
Total 317 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 91 100.00% 1 100.00%
Total 91 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 75 100.00% 1 100.00%
Total 75 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 270 100.00% 1 100.00%
Total 270 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 99 100.00% 1 100.00%
Total 99 100.00% 1 100.00%



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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 151 100.00% 1 100.00%
Total 151 100.00% 1 100.00%



static void smi_port_detach(struct smi_port *port)
{
	smi_fe_exit(port);
	smi_dvb_exit(port);
	smi_port_exit(port);
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 26 100.00% 1 100.00%
Total 26 100.00% 1 100.00%



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;
	}

	ret = smi_ir_init(dev);
	if (ret < 0)
		goto err_del_port1_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_ir;

	smi_ir_start(&dev->ir);
	return 0;

err_del_ir:
	smi_ir_exit(dev);
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;
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 475 99.79% 2 66.67%
hans verkuil hans verkuil 1 0.21% 1 33.33%
Total 476 100.00% 3 100.00%



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_ir_exit(dev);
	smi_i2c_exit(dev);
	iounmap(dev->lmmio);
	pci_set_drvdata(pdev, NULL);
	pci_disable_device(pdev);
	kfree(dev);
}

Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 122 99.19% 2 66.67%
hans verkuil hans verkuil 1 0.81% 1 33.33%
Total 123 100.00% 3 100.00%

/* 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,
	.rc_map = RC_MAP_DVBSKY,
};


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,
	.rc_map = RC_MAP_DVBSKY,
};


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,
	.rc_map = RC_MAP_DVBSKY,
};


static struct smi_cfg_info technotrend_s2_4200_cfg = {
	.type = SMI_TECHNOTREND_S2_4200,
	.name = "TechnoTrend TT-budget S2-4200 Twin",
	.ts_0 = SMI_TS_DMA_BOTH,
	.ts_1 = SMI_TS_DMA_BOTH,
	.fe_0 = DVBSKY_FE_M88RS6000,
	.fe_1 = DVBSKY_FE_M88RS6000,
	.rc_map = RC_MAP_TT_1500,
};

/* 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),
	SMI_ID(0x13c2, 0x3016, technotrend_s2_4200_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");
Overall Contributors
Person Tokens Prop Commits CommitProp
nibble max nibble max 5773 98.43% 6 50.00%
olli salonen olli salonen 83 1.42% 4 33.33%
antti palosaari antti palosaari 7 0.12% 1 8.33%
hans verkuil hans verkuil 2 0.03% 1 8.33%
Total 5865 100.00% 12 100.00%
  Directory: drivers/media/pci/smipcie

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
nibble max	nibble max	198	100.00%	1	100.00%
	Total	198	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/pci/smipcie/smipcie-main.c

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