4 files changed, 640 insertions, 0 deletions

diff --git a/drivers/media/pci/b2c2/Kconfig b/drivers/media/pci/b2c2/Kconfig
new file mode 100644
index 0000000000..0a7d1e178b
--- /dev/null
+++ b/drivers/media/pci/b2c2/Kconfig
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config DVB_B2C2_FLEXCOP_PCI
+	tristate "Technisat/B2C2 Air/Sky/Cable2PC PCI"
+	depends on DVB_CORE && I2C
+	help
+	  Support for the Air/Sky/CableStar2 PCI card (DVB/ATSC) by Technisat/B2C2.
+
+	  Say Y if you own such a device and want to use it.
+
+config DVB_B2C2_FLEXCOP_PCI_DEBUG
+	bool "Enable debug for the B2C2 FlexCop drivers"
+	depends on DVB_B2C2_FLEXCOP_PCI
+	select DVB_B2C2_FLEXCOP_DEBUG
+	help
+	  Say Y if you want to enable the module option to control debug messages
+	  of all B2C2 FlexCop drivers.
diff --git a/drivers/media/pci/b2c2/Makefile b/drivers/media/pci/b2c2/Makefile
new file mode 100644
index 0000000000..14ed6e4417
--- /dev/null
+++ b/drivers/media/pci/b2c2/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+ifneq ($(CONFIG_DVB_B2C2_FLEXCOP_PCI),)
+b2c2-flexcop-pci-objs += flexcop-dma.o
+endif
+
+b2c2-flexcop-pci-objs += flexcop-pci.o
+obj-$(CONFIG_DVB_B2C2_FLEXCOP_PCI) += b2c2-flexcop-pci.o
+
+ccflags-y += -I $(srctree)/drivers/media/common/b2c2/
diff --git a/drivers/media/pci/b2c2/flexcop-dma.c b/drivers/media/pci/b2c2/flexcop-dma.c
new file mode 100644
index 0000000000..ff80585682
--- /dev/null
+++ b/drivers/media/pci/b2c2/flexcop-dma.c
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
+ * flexcop-dma.c - configuring and controlling the DMA of the FlexCop
+ * see flexcop.c for copyright information
+ */
+#include "flexcop.h"
+
+int flexcop_dma_allocate(struct pci_dev *pdev,
+		struct flexcop_dma *dma, u32 size)
+{
+	u8 *tcpu;
+	dma_addr_t tdma = 0;
+
+	if (size % 2) {
+		err("dma buffersize has to be even.");
+		return -EINVAL;
+	}
+
+	tcpu = dma_alloc_coherent(&pdev->dev, size, &tdma, GFP_KERNEL);
+	if (tcpu != NULL) {
+		dma->pdev = pdev;
+		dma->cpu_addr0 = tcpu;
+		dma->dma_addr0 = tdma;
+		dma->cpu_addr1 = tcpu + size/2;
+		dma->dma_addr1 = tdma + size/2;
+		dma->size = size/2;
+		return 0;
+	}
+	return -ENOMEM;
+}
+EXPORT_SYMBOL(flexcop_dma_allocate);
+
+void flexcop_dma_free(struct flexcop_dma *dma)
+{
+	dma_free_coherent(&dma->pdev->dev, dma->size * 2, dma->cpu_addr0,
+			  dma->dma_addr0);
+	memset(dma, 0, sizeof(struct flexcop_dma));
+}
+EXPORT_SYMBOL(flexcop_dma_free);
+
+int flexcop_dma_config(struct flexcop_device *fc,
+		struct flexcop_dma *dma,
+		flexcop_dma_index_t dma_idx)
+{
+	flexcop_ibi_value v0x0, v0x4, v0xc;
+
+	v0x0.raw = v0x4.raw = v0xc.raw = 0;
+	v0x0.dma_0x0.dma_address0 = dma->dma_addr0 >> 2;
+	v0xc.dma_0xc.dma_address1 = dma->dma_addr1 >> 2;
+	v0x4.dma_0x4_write.dma_addr_size = dma->size / 4;
+
+	if ((dma_idx & FC_DMA_1) == dma_idx) {
+		fc->write_ibi_reg(fc, dma1_000, v0x0);
+		fc->write_ibi_reg(fc, dma1_004, v0x4);
+		fc->write_ibi_reg(fc, dma1_00c, v0xc);
+	} else if ((dma_idx & FC_DMA_2) == dma_idx) {
+		fc->write_ibi_reg(fc, dma2_010, v0x0);
+		fc->write_ibi_reg(fc, dma2_014, v0x4);
+		fc->write_ibi_reg(fc, dma2_01c, v0xc);
+	} else {
+		err("either DMA1 or DMA2 can be configured within one %s call.",
+			__func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_config);
+
+/* start the DMA transfers, but not the DMA IRQs */
+int flexcop_dma_xfer_control(struct flexcop_device *fc,
+		flexcop_dma_index_t dma_idx,
+		flexcop_dma_addr_index_t index,
+		int onoff)
+{
+	flexcop_ibi_value v0x0, v0xc;
+	flexcop_ibi_register r0x0, r0xc;
+
+	if ((dma_idx & FC_DMA_1) == dma_idx) {
+		r0x0 = dma1_000;
+		r0xc = dma1_00c;
+	} else if ((dma_idx & FC_DMA_2) == dma_idx) {
+		r0x0 = dma2_010;
+		r0xc = dma2_01c;
+	} else {
+		err("transfer DMA1 or DMA2 can be started within one %s call.",
+			__func__);
+		return -EINVAL;
+	}
+
+	v0x0 = fc->read_ibi_reg(fc, r0x0);
+	v0xc = fc->read_ibi_reg(fc, r0xc);
+
+	deb_rdump("reg: %03x: %x\n", r0x0, v0x0.raw);
+	deb_rdump("reg: %03x: %x\n", r0xc, v0xc.raw);
+
+	if (index & FC_DMA_SUBADDR_0)
+		v0x0.dma_0x0.dma_0start = onoff;
+
+	if (index & FC_DMA_SUBADDR_1)
+		v0xc.dma_0xc.dma_1start = onoff;
+
+	fc->write_ibi_reg(fc, r0x0, v0x0);
+	fc->write_ibi_reg(fc, r0xc, v0xc);
+
+	deb_rdump("reg: %03x: %x\n", r0x0, v0x0.raw);
+	deb_rdump("reg: %03x: %x\n", r0xc, v0xc.raw);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_xfer_control);
+
+static int flexcop_dma_remap(struct flexcop_device *fc,
+		flexcop_dma_index_t dma_idx,
+		int onoff)
+{
+	flexcop_ibi_register r = (dma_idx & FC_DMA_1) ? dma1_00c : dma2_01c;
+	flexcop_ibi_value v = fc->read_ibi_reg(fc, r);
+
+	deb_info("%s\n", __func__);
+	v.dma_0xc.remap_enable = onoff;
+	fc->write_ibi_reg(fc, r, v);
+	return 0;
+}
+
+int flexcop_dma_control_size_irq(struct flexcop_device *fc,
+		flexcop_dma_index_t no,
+		int onoff)
+{
+	flexcop_ibi_value v = fc->read_ibi_reg(fc, ctrl_208);
+
+	if (no & FC_DMA_1)
+		v.ctrl_208.DMA1_IRQ_Enable_sig = onoff;
+
+	if (no & FC_DMA_2)
+		v.ctrl_208.DMA2_IRQ_Enable_sig = onoff;
+
+	fc->write_ibi_reg(fc, ctrl_208, v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_control_size_irq);
+
+int flexcop_dma_control_timer_irq(struct flexcop_device *fc,
+		flexcop_dma_index_t no,
+		int onoff)
+{
+	flexcop_ibi_value v = fc->read_ibi_reg(fc, ctrl_208);
+
+	if (no & FC_DMA_1)
+		v.ctrl_208.DMA1_Timer_Enable_sig = onoff;
+
+	if (no & FC_DMA_2)
+		v.ctrl_208.DMA2_Timer_Enable_sig = onoff;
+
+	fc->write_ibi_reg(fc, ctrl_208, v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_control_timer_irq);
+
+/* 1 cycles = 1.97 msec */
+int flexcop_dma_config_timer(struct flexcop_device *fc,
+		flexcop_dma_index_t dma_idx, u8 cycles)
+{
+	flexcop_ibi_register r = (dma_idx & FC_DMA_1) ? dma1_004 : dma2_014;
+	flexcop_ibi_value v = fc->read_ibi_reg(fc, r);
+
+	flexcop_dma_remap(fc, dma_idx, 0);
+
+	deb_info("%s\n", __func__);
+	v.dma_0x4_write.dmatimer = cycles;
+	fc->write_ibi_reg(fc, r, v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_config_timer);
+
diff --git a/drivers/media/pci/b2c2/flexcop-pci.c b/drivers/media/pci/b2c2/flexcop-pci.c
new file mode 100644
index 0000000000..486c8ec0fa
--- /dev/null
+++ b/drivers/media/pci/b2c2/flexcop-pci.c
@@ -0,0 +1,440 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
+ * flexcop-pci.c - covers the PCI part including DMA transfers
+ * see flexcop.c for copyright information
+ */
+
+#define FC_LOG_PREFIX "flexcop-pci"
+#include "flexcop-common.h"
+
+static int enable_pid_filtering = 1;
+module_param(enable_pid_filtering, int, 0444);
+MODULE_PARM_DESC(enable_pid_filtering,
+	"enable hardware pid filtering: supported values: 0 (fullts), 1");
+
+static int irq_chk_intv = 100;
+module_param(irq_chk_intv, int, 0644);
+MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");
+
+#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
+#define dprintk(level, args...) \
+	do { if ((debug & (level))) printk(args); } while (0)
+#define DEBSTATUS ""
+#else
+#define dprintk(level, args...) no_printk(args)
+#define DEBSTATUS " (debugging is not enabled)"
+#endif
+
+#define deb_info(args...) dprintk(0x01, args)
+#define deb_reg(args...) dprintk(0x02, args)
+#define deb_ts(args...) dprintk(0x04, args)
+#define deb_irq(args...) dprintk(0x08, args)
+#define deb_chk(args...) dprintk(0x10, args)
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug,
+	"set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))."
+	DEBSTATUS);
+
+#define DRIVER_VERSION "0.1"
+#define DRIVER_NAME "flexcop-pci"
+#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@posteo.de>"
+
+struct flexcop_pci {
+	struct pci_dev *pdev;
+
+#define FC_PCI_INIT     0x01
+#define FC_PCI_DMA_INIT 0x02
+	int init_state;
+
+	void __iomem *io_mem;
+	u32 irq;
+	/* buffersize (at least for DMA1, need to be % 188 == 0,
+	 * this logic is required */
+#define FC_DEFAULT_DMA1_BUFSIZE (1280 * 188)
+#define FC_DEFAULT_DMA2_BUFSIZE (10 * 188)
+	struct flexcop_dma dma[2];
+
+	int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */
+	u32 last_dma1_cur_pos;
+	/* position of the pointer last time the timer/packet irq occurred */
+	int count;
+	int count_prev;
+	int stream_problem;
+
+	spinlock_t irq_lock;
+	unsigned long last_irq;
+
+	struct delayed_work irq_check_work;
+	struct flexcop_device *fc_dev;
+};
+
+static int lastwreg, lastwval, lastrreg, lastrval;
+
+static flexcop_ibi_value flexcop_pci_read_ibi_reg(struct flexcop_device *fc,
+		flexcop_ibi_register r)
+{
+	struct flexcop_pci *fc_pci = fc->bus_specific;
+	flexcop_ibi_value v;
+	v.raw = readl(fc_pci->io_mem + r);
+
+	if (lastrreg != r || lastrval != v.raw) {
+		lastrreg = r; lastrval = v.raw;
+		deb_reg("new rd: %3x: %08x\n", r, v.raw);
+	}
+
+	return v;
+}
+
+static int flexcop_pci_write_ibi_reg(struct flexcop_device *fc,
+		flexcop_ibi_register r, flexcop_ibi_value v)
+{
+	struct flexcop_pci *fc_pci = fc->bus_specific;
+
+	if (lastwreg != r || lastwval != v.raw) {
+		lastwreg = r; lastwval = v.raw;
+		deb_reg("new wr: %3x: %08x\n", r, v.raw);
+	}
+
+	writel(v.raw, fc_pci->io_mem + r);
+	return 0;
+}
+
+static void flexcop_pci_irq_check_work(struct work_struct *work)
+{
+	struct flexcop_pci *fc_pci =
+		container_of(work, struct flexcop_pci, irq_check_work.work);
+	struct flexcop_device *fc = fc_pci->fc_dev;
+
+	if (fc->feedcount) {
+
+		if (fc_pci->count == fc_pci->count_prev) {
+			deb_chk("no IRQ since the last check\n");
+			if (fc_pci->stream_problem++ == 3) {
+				struct dvb_demux_feed *feed;
+				deb_info("flexcop-pci: stream problem, resetting pid filter\n");
+
+				spin_lock_irq(&fc->demux.lock);
+				list_for_each_entry(feed, &fc->demux.feed_list,
+						list_head) {
+					flexcop_pid_feed_control(fc, feed, 0);
+				}
+
+				list_for_each_entry(feed, &fc->demux.feed_list,
+						list_head) {
+					flexcop_pid_feed_control(fc, feed, 1);
+				}
+				spin_unlock_irq(&fc->demux.lock);
+
+				fc_pci->stream_problem = 0;
+			}
+		} else {
+			fc_pci->stream_problem = 0;
+			fc_pci->count_prev = fc_pci->count;
+		}
+	}
+
+	schedule_delayed_work(&fc_pci->irq_check_work,
+			msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
+}
+
+/* When PID filtering is turned on, we use the timer IRQ, because small amounts
+ * of data need to be passed to the user space instantly as well. When PID
+ * filtering is turned off, we use the page-change-IRQ */
+static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
+{
+	struct flexcop_pci *fc_pci = dev_id;
+	struct flexcop_device *fc = fc_pci->fc_dev;
+	unsigned long flags;
+	flexcop_ibi_value v;
+	irqreturn_t ret = IRQ_HANDLED;
+
+	spin_lock_irqsave(&fc_pci->irq_lock, flags);
+	v = fc->read_ibi_reg(fc, irq_20c);
+
+	/* errors */
+	if (v.irq_20c.Data_receiver_error)
+		deb_chk("data receiver error\n");
+	if (v.irq_20c.Continuity_error_flag)
+		deb_chk("Continuity error flag is set\n");
+	if (v.irq_20c.LLC_SNAP_FLAG_set)
+		deb_chk("LLC_SNAP_FLAG_set is set\n");
+	if (v.irq_20c.Transport_Error)
+		deb_chk("Transport error\n");
+
+	if ((fc_pci->count % 1000) == 0)
+		deb_chk("%d valid irq took place so far\n", fc_pci->count);
+
+	if (v.irq_20c.DMA1_IRQ_Status == 1) {
+		if (fc_pci->active_dma1_addr == 0)
+			flexcop_pass_dmx_packets(fc_pci->fc_dev,
+					fc_pci->dma[0].cpu_addr0,
+					fc_pci->dma[0].size / 188);
+		else
+			flexcop_pass_dmx_packets(fc_pci->fc_dev,
+					fc_pci->dma[0].cpu_addr1,
+					fc_pci->dma[0].size / 188);
+
+		deb_irq("page change to page: %d\n",!fc_pci->active_dma1_addr);
+		fc_pci->active_dma1_addr = !fc_pci->active_dma1_addr;
+		/* for the timer IRQ we only can use buffer dmx feeding, because we don't have
+		 * complete TS packets when reading from the DMA memory */
+	} else if (v.irq_20c.DMA1_Timer_Status == 1) {
+		dma_addr_t cur_addr =
+			fc->read_ibi_reg(fc,dma1_008).dma_0x8.dma_cur_addr << 2;
+		u32 cur_pos = cur_addr - fc_pci->dma[0].dma_addr0;
+		if (cur_pos > fc_pci->dma[0].size * 2)
+			goto error;
+
+		deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, last_cur_pos: %08x ",
+				jiffies_to_usecs(jiffies - fc_pci->last_irq),
+				v.raw, (unsigned long long)cur_addr, cur_pos,
+				fc_pci->last_dma1_cur_pos);
+		fc_pci->last_irq = jiffies;
+
+		/* buffer end was reached, restarted from the beginning
+		 * pass the data from last_cur_pos to the buffer end to the demux
+		 */
+		if (cur_pos < fc_pci->last_dma1_cur_pos) {
+			deb_irq(" end was reached: passing %d bytes ",
+				(fc_pci->dma[0].size*2 - 1) -
+				fc_pci->last_dma1_cur_pos);
+			flexcop_pass_dmx_data(fc_pci->fc_dev,
+				fc_pci->dma[0].cpu_addr0 +
+					fc_pci->last_dma1_cur_pos,
+				(fc_pci->dma[0].size*2) -
+					fc_pci->last_dma1_cur_pos);
+			fc_pci->last_dma1_cur_pos = 0;
+		}
+
+		if (cur_pos > fc_pci->last_dma1_cur_pos) {
+			deb_irq(" passing %d bytes ",
+				cur_pos - fc_pci->last_dma1_cur_pos);
+			flexcop_pass_dmx_data(fc_pci->fc_dev,
+				fc_pci->dma[0].cpu_addr0 +
+					fc_pci->last_dma1_cur_pos,
+				cur_pos - fc_pci->last_dma1_cur_pos);
+		}
+		deb_irq("\n");
+
+		fc_pci->last_dma1_cur_pos = cur_pos;
+		fc_pci->count++;
+	} else {
+		deb_irq("isr for flexcop called, apparently without reason (%08x)\n",
+			v.raw);
+		ret = IRQ_NONE;
+	}
+
+error:
+	spin_unlock_irqrestore(&fc_pci->irq_lock, flags);
+	return ret;
+}
+
+static int flexcop_pci_stream_control(struct flexcop_device *fc, int onoff)
+{
+	struct flexcop_pci *fc_pci = fc->bus_specific;
+	if (onoff) {
+		flexcop_dma_config(fc, &fc_pci->dma[0], FC_DMA_1);
+		flexcop_dma_config(fc, &fc_pci->dma[1], FC_DMA_2);
+		flexcop_dma_config_timer(fc, FC_DMA_1, 0);
+		flexcop_dma_xfer_control(fc, FC_DMA_1,
+				FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 1);
+		deb_irq("DMA xfer enabled\n");
+
+		fc_pci->last_dma1_cur_pos = 0;
+		flexcop_dma_control_timer_irq(fc, FC_DMA_1, 1);
+		deb_irq("IRQ enabled\n");
+		fc_pci->count_prev = fc_pci->count;
+	} else {
+		flexcop_dma_control_timer_irq(fc, FC_DMA_1, 0);
+		deb_irq("IRQ disabled\n");
+
+		flexcop_dma_xfer_control(fc, FC_DMA_1,
+			 FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 0);
+		deb_irq("DMA xfer disabled\n");
+	}
+	return 0;
+}
+
+static int flexcop_pci_dma_init(struct flexcop_pci *fc_pci)
+{
+	int ret;
+	ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[0],
+			FC_DEFAULT_DMA1_BUFSIZE);
+	if (ret != 0)
+		return ret;
+
+	ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[1],
+			FC_DEFAULT_DMA2_BUFSIZE);
+	if (ret != 0) {
+		flexcop_dma_free(&fc_pci->dma[0]);
+		return ret;
+	}
+
+	flexcop_sram_set_dest(fc_pci->fc_dev, FC_SRAM_DEST_MEDIA |
+			FC_SRAM_DEST_NET, FC_SRAM_DEST_TARGET_DMA1);
+	flexcop_sram_set_dest(fc_pci->fc_dev, FC_SRAM_DEST_CAO |
+			FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_DMA2);
+	fc_pci->init_state |= FC_PCI_DMA_INIT;
+	return ret;
+}
+
+static void flexcop_pci_dma_exit(struct flexcop_pci *fc_pci)
+{
+	if (fc_pci->init_state & FC_PCI_DMA_INIT) {
+		flexcop_dma_free(&fc_pci->dma[0]);
+		flexcop_dma_free(&fc_pci->dma[1]);
+	}
+	fc_pci->init_state &= ~FC_PCI_DMA_INIT;
+}
+
+static int flexcop_pci_init(struct flexcop_pci *fc_pci)
+{
+	int ret;
+
+	info("card revision %x", fc_pci->pdev->revision);
+
+	if ((ret = pci_enable_device(fc_pci->pdev)) != 0)
+		return ret;
+	pci_set_master(fc_pci->pdev);
+
+	if ((ret = pci_request_regions(fc_pci->pdev, DRIVER_NAME)) != 0)
+		goto err_pci_disable_device;
+
+	fc_pci->io_mem = pci_iomap(fc_pci->pdev, 0, 0x800);
+
+	if (!fc_pci->io_mem) {
+		err("cannot map io memory\n");
+		ret = -EIO;
+		goto err_pci_release_regions;
+	}
+
+	pci_set_drvdata(fc_pci->pdev, fc_pci);
+	spin_lock_init(&fc_pci->irq_lock);
+	if ((ret = request_irq(fc_pci->pdev->irq, flexcop_pci_isr,
+					IRQF_SHARED, DRIVER_NAME, fc_pci)) != 0)
+		goto err_pci_iounmap;
+
+	fc_pci->init_state |= FC_PCI_INIT;
+	return ret;
+
+err_pci_iounmap:
+	pci_iounmap(fc_pci->pdev, fc_pci->io_mem);
+err_pci_release_regions:
+	pci_release_regions(fc_pci->pdev);
+err_pci_disable_device:
+	pci_disable_device(fc_pci->pdev);
+	return ret;
+}
+
+static void flexcop_pci_exit(struct flexcop_pci *fc_pci)
+{
+	if (fc_pci->init_state & FC_PCI_INIT) {
+		free_irq(fc_pci->pdev->irq, fc_pci);
+		pci_iounmap(fc_pci->pdev, fc_pci->io_mem);
+		pci_release_regions(fc_pci->pdev);
+		pci_disable_device(fc_pci->pdev);
+	}
+	fc_pci->init_state &= ~FC_PCI_INIT;
+}
+
+static int flexcop_pci_probe(struct pci_dev *pdev,
+		const struct pci_device_id *ent)
+{
+	struct flexcop_device *fc;
+	struct flexcop_pci *fc_pci;
+	int ret = -ENOMEM;
+
+	if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_pci))) == NULL) {
+		err("out of memory\n");
+		return -ENOMEM;
+	}
+
+	/* general flexcop init */
+	fc_pci = fc->bus_specific;
+	fc_pci->fc_dev = fc;
+
+	fc->read_ibi_reg = flexcop_pci_read_ibi_reg;
+	fc->write_ibi_reg = flexcop_pci_write_ibi_reg;
+	fc->i2c_request = flexcop_i2c_request;
+	fc->get_mac_addr = flexcop_eeprom_check_mac_addr;
+	fc->stream_control = flexcop_pci_stream_control;
+
+	if (enable_pid_filtering)
+		info("will use the HW PID filter.");
+	else
+		info("will pass the complete TS to the demuxer.");
+
+	fc->pid_filtering = enable_pid_filtering;
+	fc->bus_type = FC_PCI;
+	fc->dev = &pdev->dev;
+	fc->owner = THIS_MODULE;
+
+	/* bus specific part */
+	fc_pci->pdev = pdev;
+	if ((ret = flexcop_pci_init(fc_pci)) != 0)
+		goto err_kfree;
+
+	/* init flexcop */
+	if ((ret = flexcop_device_initialize(fc)) != 0)
+		goto err_pci_exit;
+
+	/* init dma */
+	if ((ret = flexcop_pci_dma_init(fc_pci)) != 0)
+		goto err_fc_exit;
+
+	INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work);
+
+	if (irq_chk_intv > 0)
+		schedule_delayed_work(&fc_pci->irq_check_work,
+				msecs_to_jiffies(irq_chk_intv < 100 ?
+					100 :
+					irq_chk_intv));
+	return ret;
+
+err_fc_exit:
+	flexcop_device_exit(fc);
+err_pci_exit:
+	flexcop_pci_exit(fc_pci);
+err_kfree:
+	flexcop_device_kfree(fc);
+	return ret;
+}
+
+/* in theory every _exit function should be called exactly two times,
+ * here and in the bail-out-part of the _init-function
+ */
+static void flexcop_pci_remove(struct pci_dev *pdev)
+{
+	struct flexcop_pci *fc_pci = pci_get_drvdata(pdev);
+
+	if (irq_chk_intv > 0)
+		cancel_delayed_work(&fc_pci->irq_check_work);
+
+	flexcop_pci_dma_exit(fc_pci);
+	flexcop_device_exit(fc_pci->fc_dev);
+	flexcop_pci_exit(fc_pci);
+	flexcop_device_kfree(fc_pci->fc_dev);
+}
+
+static const struct pci_device_id flexcop_pci_tbl[] = {
+	{ PCI_DEVICE(0x13d0, 0x2103) },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(pci, flexcop_pci_tbl);
+
+static struct pci_driver flexcop_pci_driver = {
+	.name     = "b2c2_flexcop_pci",
+	.id_table = flexcop_pci_tbl,
+	.probe    = flexcop_pci_probe,
+	.remove   = flexcop_pci_remove,
+};
+
+module_pci_driver(flexcop_pci_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_NAME);
+MODULE_LICENSE("GPL");