2 Mantis PCI bridge driver
4 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <linux/kernel.h>
25 #include <asm/pgtable.h>
27 #include <linux/kmod.h>
28 #include <linux/vmalloc.h>
29 #include <linux/init.h>
30 #include <linux/device.h>
31 #include <linux/pci.h>
34 #include <linux/signal.h>
35 #include <linux/sched.h>
36 #include <linux/interrupt.h>
40 #include "dvb_demux.h"
41 #include "dvb_frontend.h"
45 #include <linux/signal.h>
46 #include <linux/sched.h>
47 #include <linux/interrupt.h>
49 #include "mantis_common.h"
50 #include "mantis_reg.h"
51 #include "mantis_pci.h"
53 #define DRIVER_NAME "Mantis Core"
55 int __devinit mantis_pci_init(struct mantis_pci *mantis)
58 struct mantis_hwconfig *config = mantis->hwconfig;
59 struct pci_dev *pdev = mantis->pdev;
62 dprintk(MANTIS_ERROR, 0, "found a %s PCI %s device on (%02x:%02x.%x),\n",
65 mantis->pdev->bus->number,
66 PCI_SLOT(mantis->pdev->devfn),
67 PCI_FUNC(mantis->pdev->devfn));
69 err = pci_enable_device(pdev);
72 dprintk(MANTIS_ERROR, 1, "ERROR: PCI enable failed <%i>", err);
76 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
78 dprintk(MANTIS_ERROR, 1, "ERROR: Unable to obtain 32 bit DMA <%i>", err);
85 if (!request_mem_region(pci_resource_start(pdev, 0),
86 pci_resource_len(pdev, 0),
89 dprintk(MANTIS_ERROR, 1, "ERROR: BAR0 Request failed !");
94 mantis->mmio = ioremap(pci_resource_start(pdev, 0),
95 pci_resource_len(pdev, 0));
98 dprintk(MANTIS_ERROR, 1, "ERROR: BAR0 remap failed !");
103 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &latency);
104 pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
105 mantis->latency = latency;
106 mantis->revision = revision;
108 dprintk(MANTIS_ERROR, 0, " Mantis Rev %d [%04x:%04x], ",
110 mantis->pdev->subsystem_vendor,
111 mantis->pdev->subsystem_device);
113 dprintk(MANTIS_ERROR, 0,
114 "irq: %d, latency: %d\n memory: 0x%lx, mmio: 0x%p\n",
120 err = request_irq(pdev->irq,
128 dprintk(MANTIS_ERROR, 1, "ERROR: IRQ registration failed ! <%d>", err);
133 pci_set_drvdata(pdev, mantis);
136 /* Error conditions */
138 dprintk(MANTIS_ERROR, 1, "ERROR: <%d> I/O unmap", ret);
140 iounmap(mantis->mmio);
143 dprintk(MANTIS_ERROR, 1, "ERROR: <%d> releasing regions", ret);
144 release_mem_region(pci_resource_start(pdev, 0),
145 pci_resource_len(pdev, 0));
148 dprintk(MANTIS_ERROR, 1, "ERROR: <%d> disabling device", ret);
149 pci_disable_device(pdev);
152 dprintk(MANTIS_ERROR, 1, "ERROR: <%d> exiting", ret);
153 pci_set_drvdata(pdev, NULL);
156 EXPORT_SYMBOL_GPL(mantis_pci_init);
158 void mantis_pci_exit(struct mantis_pci *mantis)
160 struct pci_dev *pdev = mantis->pdev;
162 dprintk(MANTIS_NOTICE, 1, " mem: 0x%p", mantis->mmio);
163 free_irq(pdev->irq, mantis);
165 iounmap(mantis->mmio);
166 release_mem_region(pci_resource_start(pdev, 0),
167 pci_resource_len(pdev, 0));
170 pci_disable_device(pdev);
171 pci_set_drvdata(pdev, NULL);
173 EXPORT_SYMBOL_GPL(mantis_pci_exit);
175 MODULE_DESCRIPTION("Mantis PCI DTV bridge driver");
176 MODULE_AUTHOR("Manu Abraham");
177 MODULE_LICENSE("GPL");