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bb4cec96e5
This enables MaxS4/S8 and Octopus Max card support in ddbridge by adding glue code into ddbridge-core, having another PCI ID, and have the LNB IC control code (and all other MaxS4/8 related code) in ddbridge-maxs8.c (rather than another ~400 LoC in ddbridge-core.c like it's done in the original vendor driver package). Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
396 lines
10 KiB
C
396 lines
10 KiB
C
/*
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* ddbridge.c: Digital Devices PCIe bridge driver
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*
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* Copyright (C) 2010-2017 Digital Devices GmbH
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* Ralph Metzler <rjkm@metzlerbros.de>
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* Marcus Metzler <mocm@metzlerbros.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 only, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/poll.h>
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#include <linux/io.h>
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#include <linux/pci.h>
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#include <linux/pci_ids.h>
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#include <linux/timer.h>
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#include <linux/i2c.h>
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#include <linux/swab.h>
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#include <linux/vmalloc.h>
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#include "ddbridge.h"
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#include "ddbridge-i2c.h"
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#include "ddbridge-regs.h"
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#include "ddbridge-hw.h"
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#include "ddbridge-io.h"
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/****************************************************************************/
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/* module parameters */
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int adapter_alloc;
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module_param(adapter_alloc, int, 0444);
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MODULE_PARM_DESC(adapter_alloc,
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"0-one adapter per io, 1-one per tab with io, 2-one per tab, 3-one for all");
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#ifdef CONFIG_PCI_MSI
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#ifdef CONFIG_DVB_DDBRIDGE_MSIENABLE
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int msi = 1;
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#else
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int msi;
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#endif
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module_param(msi, int, 0444);
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#ifdef CONFIG_DVB_DDBRIDGE_MSIENABLE
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MODULE_PARM_DESC(msi, "Control MSI interrupts: 0-disable, 1-enable (default)");
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#else
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MODULE_PARM_DESC(msi, "Control MSI interrupts: 0-disable (default), 1-enable");
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#endif
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#endif
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int ci_bitrate = 70000;
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module_param(ci_bitrate, int, 0444);
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MODULE_PARM_DESC(ci_bitrate, " Bitrate in KHz for output to CI.");
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int ts_loop = -1;
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module_param(ts_loop, int, 0444);
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MODULE_PARM_DESC(ts_loop, "TS in/out test loop on port ts_loop");
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int xo2_speed = 2;
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module_param(xo2_speed, int, 0444);
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MODULE_PARM_DESC(xo2_speed, "default transfer speed for xo2 based duoflex, 0=55,1=75,2=90,3=104 MBit/s, default=2, use attribute to change for individual cards");
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#ifdef __arm__
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int alt_dma = 1;
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#else
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int alt_dma;
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#endif
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module_param(alt_dma, int, 0444);
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MODULE_PARM_DESC(alt_dma, "use alternative DMA buffer handling");
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int no_init;
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module_param(no_init, int, 0444);
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MODULE_PARM_DESC(no_init, "do not initialize most devices");
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int stv0910_single;
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module_param(stv0910_single, int, 0444);
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MODULE_PARM_DESC(stv0910_single, "use stv0910 cards as single demods");
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/****************************************************************************/
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struct workqueue_struct *ddb_wq;
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/****************************************************************************/
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/****************************************************************************/
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/****************************************************************************/
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static void ddb_unmap(struct ddb *dev)
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{
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if (dev->regs)
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iounmap(dev->regs);
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vfree(dev);
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}
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static void ddb_irq_disable(struct ddb *dev)
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{
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ddbwritel(dev, 0, INTERRUPT_ENABLE);
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ddbwritel(dev, 0, MSI1_ENABLE);
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}
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static void ddb_irq_exit(struct ddb *dev)
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{
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ddb_irq_disable(dev);
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if (dev->msi == 2)
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free_irq(dev->pdev->irq + 1, dev);
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free_irq(dev->pdev->irq, dev);
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#ifdef CONFIG_PCI_MSI
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if (dev->msi)
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pci_disable_msi(dev->pdev);
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#endif
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}
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static void ddb_remove(struct pci_dev *pdev)
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{
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struct ddb *dev = (struct ddb *) pci_get_drvdata(pdev);
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ddb_device_destroy(dev);
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ddb_ports_detach(dev);
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ddb_i2c_release(dev);
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ddb_irq_exit(dev);
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ddb_ports_release(dev);
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ddb_buffers_free(dev);
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ddb_unmap(dev);
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pci_set_drvdata(pdev, NULL);
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pci_disable_device(pdev);
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}
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#ifdef CONFIG_PCI_MSI
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static void ddb_irq_msi(struct ddb *dev, int nr)
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{
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int stat;
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if (msi && pci_msi_enabled()) {
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stat = pci_alloc_irq_vectors(dev->pdev, 1, nr, PCI_IRQ_MSI);
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if (stat >= 1) {
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dev->msi = stat;
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dev_info(dev->dev, "using %d MSI interrupt(s)\n",
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dev->msi);
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} else
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dev_info(dev->dev, "MSI not available.\n");
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}
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}
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#endif
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static int ddb_irq_init(struct ddb *dev)
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{
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int stat;
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int irq_flag = IRQF_SHARED;
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ddbwritel(dev, 0x00000000, INTERRUPT_ENABLE);
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ddbwritel(dev, 0x00000000, MSI1_ENABLE);
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ddbwritel(dev, 0x00000000, MSI2_ENABLE);
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ddbwritel(dev, 0x00000000, MSI3_ENABLE);
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ddbwritel(dev, 0x00000000, MSI4_ENABLE);
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ddbwritel(dev, 0x00000000, MSI5_ENABLE);
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ddbwritel(dev, 0x00000000, MSI6_ENABLE);
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ddbwritel(dev, 0x00000000, MSI7_ENABLE);
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#ifdef CONFIG_PCI_MSI
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ddb_irq_msi(dev, 2);
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if (dev->msi)
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irq_flag = 0;
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if (dev->msi == 2) {
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stat = request_irq(dev->pdev->irq, ddb_irq_handler0,
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irq_flag, "ddbridge", (void *) dev);
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if (stat < 0)
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return stat;
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stat = request_irq(dev->pdev->irq + 1, ddb_irq_handler1,
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irq_flag, "ddbridge", (void *) dev);
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if (stat < 0) {
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free_irq(dev->pdev->irq, dev);
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return stat;
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}
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} else
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#endif
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{
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stat = request_irq(dev->pdev->irq, ddb_irq_handler,
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irq_flag, "ddbridge", (void *) dev);
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if (stat < 0)
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return stat;
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}
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if (dev->msi == 2) {
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ddbwritel(dev, 0x0fffff00, INTERRUPT_ENABLE);
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ddbwritel(dev, 0x0000000f, MSI1_ENABLE);
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} else {
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ddbwritel(dev, 0x0fffff0f, INTERRUPT_ENABLE);
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ddbwritel(dev, 0x00000000, MSI1_ENABLE);
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}
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return stat;
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}
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static int ddb_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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struct ddb *dev;
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int stat = 0;
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if (pci_enable_device(pdev) < 0)
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return -ENODEV;
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pci_set_master(pdev);
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if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
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if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
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return -ENODEV;
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dev = vzalloc(sizeof(struct ddb));
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if (dev == NULL)
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return -ENOMEM;
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mutex_init(&dev->mutex);
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dev->has_dma = 1;
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dev->pdev = pdev;
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dev->dev = &pdev->dev;
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pci_set_drvdata(pdev, dev);
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dev->link[0].ids.vendor = id->vendor;
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dev->link[0].ids.device = id->device;
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dev->link[0].ids.subvendor = id->subvendor;
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dev->link[0].ids.subdevice = id->subdevice;
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dev->link[0].dev = dev;
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dev->link[0].info = (struct ddb_info *) id->driver_data;
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dev_info(&pdev->dev, "detected %s\n", dev->link[0].info->name);
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dev->regs_len = pci_resource_len(dev->pdev, 0);
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dev->regs = ioremap(pci_resource_start(dev->pdev, 0),
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pci_resource_len(dev->pdev, 0));
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if (!dev->regs) {
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dev_err(&pdev->dev, "not enough memory for register map\n");
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stat = -ENOMEM;
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goto fail;
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}
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if (ddbreadl(dev, 0) == 0xffffffff) {
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dev_err(&pdev->dev, "cannot read registers\n");
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stat = -ENODEV;
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goto fail;
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}
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dev->link[0].ids.hwid = ddbreadl(dev, 0);
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dev->link[0].ids.regmapid = ddbreadl(dev, 4);
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dev_info(&pdev->dev, "HW %08x REGMAP %08x\n",
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dev->link[0].ids.hwid, dev->link[0].ids.regmapid);
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ddbwritel(dev, 0, DMA_BASE_READ);
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ddbwritel(dev, 0, DMA_BASE_WRITE);
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stat = ddb_irq_init(dev);
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if (stat < 0)
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goto fail0;
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if (ddb_init(dev) == 0)
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return 0;
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ddb_irq_exit(dev);
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fail0:
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dev_err(&pdev->dev, "fail0\n");
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if (dev->msi)
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pci_disable_msi(dev->pdev);
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fail:
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dev_err(&pdev->dev, "fail\n");
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ddb_unmap(dev);
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pci_set_drvdata(pdev, NULL);
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pci_disable_device(pdev);
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return -1;
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}
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/****************************************************************************/
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/****************************************************************************/
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/****************************************************************************/
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#define DDVID 0xdd01 /* Digital Devices Vendor ID */
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#define DDB_DEVICE(_device, _subdevice, _driver_data) { \
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PCI_DEVICE_SUB(DDVID, _device, DDVID, _subdevice), \
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.driver_data = (kernel_ulong_t) &_driver_data }
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#define DDB_DEVICE_ANY(_device) { \
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PCI_DEVICE_SUB(DDVID, _device, DDVID, PCI_ANY_ID), \
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.driver_data = (kernel_ulong_t) &ddb_none }
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static const struct pci_device_id ddb_id_table[] = {
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DDB_DEVICE(0x0002, 0x0001, ddb_octopus),
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DDB_DEVICE(0x0003, 0x0001, ddb_octopus),
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DDB_DEVICE(0x0005, 0x0004, ddb_octopusv3),
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DDB_DEVICE(0x0003, 0x0002, ddb_octopus_le),
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DDB_DEVICE(0x0003, 0x0003, ddb_octopus_oem),
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DDB_DEVICE(0x0003, 0x0010, ddb_octopus_mini),
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DDB_DEVICE(0x0005, 0x0011, ddb_octopus_mini),
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DDB_DEVICE(0x0003, 0x0020, ddb_v6),
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DDB_DEVICE(0x0003, 0x0021, ddb_v6_5),
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DDB_DEVICE(0x0006, 0x0022, ddb_v7),
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DDB_DEVICE(0x0006, 0x0024, ddb_v7a),
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DDB_DEVICE(0x0003, 0x0030, ddb_dvbct),
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DDB_DEVICE(0x0003, 0xdb03, ddb_satixS2v3),
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DDB_DEVICE(0x0006, 0x0031, ddb_ctv7),
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DDB_DEVICE(0x0006, 0x0032, ddb_ctv7),
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DDB_DEVICE(0x0006, 0x0033, ddb_ctv7),
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DDB_DEVICE(0x0007, 0x0023, ddb_s2_48),
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DDB_DEVICE(0x0008, 0x0034, ddb_ct2_8),
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DDB_DEVICE(0x0008, 0x0035, ddb_c2t2_8),
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DDB_DEVICE(0x0008, 0x0036, ddb_isdbt_8),
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DDB_DEVICE(0x0008, 0x0037, ddb_c2t2i_v0_8),
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DDB_DEVICE(0x0008, 0x0038, ddb_c2t2i_8),
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DDB_DEVICE(0x0006, 0x0039, ddb_ctv7),
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DDB_DEVICE(0x0011, 0x0040, ddb_ci),
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DDB_DEVICE(0x0011, 0x0041, ddb_cis),
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DDB_DEVICE(0x0012, 0x0042, ddb_ci),
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DDB_DEVICE(0x0013, 0x0043, ddb_ci_s2_pro),
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DDB_DEVICE(0x0013, 0x0044, ddb_ci_s2_pro_a),
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/* in case sub-ids got deleted in flash */
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DDB_DEVICE_ANY(0x0003),
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DDB_DEVICE_ANY(0x0005),
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DDB_DEVICE_ANY(0x0006),
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DDB_DEVICE_ANY(0x0007),
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DDB_DEVICE_ANY(0x0008),
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DDB_DEVICE_ANY(0x0011),
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DDB_DEVICE_ANY(0x0012),
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DDB_DEVICE_ANY(0x0013),
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DDB_DEVICE_ANY(0x0201),
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DDB_DEVICE_ANY(0x0203),
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DDB_DEVICE_ANY(0x0210),
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DDB_DEVICE_ANY(0x0220),
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DDB_DEVICE_ANY(0x0320),
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DDB_DEVICE_ANY(0x0321),
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DDB_DEVICE_ANY(0x0322),
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DDB_DEVICE_ANY(0x0323),
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DDB_DEVICE_ANY(0x0328),
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DDB_DEVICE_ANY(0x0329),
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{0}
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};
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MODULE_DEVICE_TABLE(pci, ddb_id_table);
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static struct pci_driver ddb_pci_driver = {
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.name = "ddbridge",
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.id_table = ddb_id_table,
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.probe = ddb_probe,
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.remove = ddb_remove,
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};
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static __init int module_init_ddbridge(void)
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{
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int stat = -1;
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pr_info("Digital Devices PCIE bridge driver "
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DDBRIDGE_VERSION
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", Copyright (C) 2010-17 Digital Devices GmbH\n");
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if (ddb_class_create() < 0)
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return -1;
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ddb_wq = create_workqueue("ddbridge");
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if (ddb_wq == NULL)
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goto exit1;
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stat = pci_register_driver(&ddb_pci_driver);
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if (stat < 0)
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goto exit2;
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return stat;
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exit2:
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destroy_workqueue(ddb_wq);
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exit1:
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ddb_class_destroy();
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return stat;
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}
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static __exit void module_exit_ddbridge(void)
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{
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pci_unregister_driver(&ddb_pci_driver);
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destroy_workqueue(ddb_wq);
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ddb_class_destroy();
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}
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module_init(module_init_ddbridge);
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module_exit(module_exit_ddbridge);
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MODULE_DESCRIPTION("Digital Devices PCIe Bridge");
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MODULE_AUTHOR("Ralph and Marcus Metzler, Metzler Brothers Systementwicklung GbR");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DDBRIDGE_VERSION);
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