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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2012 Red Hat
*
* Authors: Matthew Garrett
* Dave Airlie
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <drm/drm_aperture.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
#include <drm/drm_ioctl.h>
#include <drm/drm_managed.h>
#include <drm/drm_module.h>
#include <drm/drm_pciids.h>
#include "mgag200_drv.h"
int mgag200_modeset = -1;
MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, mgag200_modeset, int, 0400);
int mgag200_init_pci_options(struct pci_dev *pdev, u32 option, u32 option2)
{
struct device *dev = &pdev->dev;
int err;
err = pci_read_config_dword(pdev, PCI_MGA_OPTION, &option);
if (err != PCIBIOS_SUCCESSFUL) {
dev_err(dev, "pci_read_config_dword(PCI_MGA_OPTION) failed: %d\n", err);
return pcibios_err_to_errno(err);
}
err = pci_write_config_dword(pdev, PCI_MGA_OPTION, option);
if (err != PCIBIOS_SUCCESSFUL) {
dev_err(dev, "pci_write_config_dword(PCI_MGA_OPTION) failed: %d\n", err);
return pcibios_err_to_errno(err);
}
err = pci_write_config_dword(pdev, PCI_MGA_OPTION2, option2);
if (err != PCIBIOS_SUCCESSFUL) {
dev_err(dev, "pci_write_config_dword(PCI_MGA_OPTION2) failed: %d\n", err);
return pcibios_err_to_errno(err);
}
return 0;
}
/*
* DRM driver
*/
DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
static const struct drm_driver mgag200_driver = {
.driver_features = DRIVER_ATOMIC | DRIVER_GEM | DRIVER_MODESET,
.fops = &mgag200_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
DRM_GEM_SHMEM_DRIVER_OPS,
};
/*
* DRM device
*/
int mgag200_regs_init(struct mga_device *mdev)
{
struct drm_device *dev = &mdev->base;
struct pci_dev *pdev = to_pci_dev(dev->dev);
u8 crtcext3;
int ret;
ret = drmm_mutex_init(dev, &mdev->rmmio_lock);
if (ret)
return ret;
/* BAR 1 contains registers */
mdev->rmmio_base = pci_resource_start(pdev, 1);
mdev->rmmio_size = pci_resource_len(pdev, 1);
if (!devm_request_mem_region(dev->dev, mdev->rmmio_base,
mdev->rmmio_size, "mgadrmfb_mmio")) {
drm_err(dev, "can't reserve mmio registers\n");
return -ENOMEM;
}
mdev->rmmio = pcim_iomap(pdev, 1, 0);
if (mdev->rmmio == NULL)
return -ENOMEM;
RREG_ECRT(0x03, crtcext3);
crtcext3 |= MGAREG_CRTCEXT3_MGAMODE;
WREG_ECRT(0x03, crtcext3);
return 0;
}
/*
* PCI driver
*/
static const struct pci_device_id mgag200_pciidlist[] = {
{ PCI_VENDOR_ID_MATROX, 0x520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_PCI },
{ PCI_VENDOR_ID_MATROX, 0x521, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_AGP },
{ PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
G200_SE_A | MGAG200_FLAG_HW_BUG_NO_STARTADD},
{ PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
{ PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
{ PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
{ PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
{ PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
{ PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 },
{ PCI_VENDOR_ID_MATROX, 0x538, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH3 },
{0,}
};
MODULE_DEVICE_TABLE(pci, mgag200_pciidlist);
static enum mga_type mgag200_type_from_driver_data(kernel_ulong_t driver_data)
{
return (enum mga_type)(driver_data & MGAG200_TYPE_MASK);
}
static unsigned long mgag200_flags_from_driver_data(kernel_ulong_t driver_data)
{
return driver_data & MGAG200_FLAG_MASK;
}
static int
mgag200_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
kernel_ulong_t driver_data = ent->driver_data;
enum mga_type type = mgag200_type_from_driver_data(driver_data);
unsigned long flags = mgag200_flags_from_driver_data(driver_data);
struct mga_device *mdev;
struct drm_device *dev;
int ret;
ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &mgag200_driver);
if (ret)
return ret;
ret = pcim_enable_device(pdev);
if (ret)
return ret;
switch (type) {
case G200_PCI:
case G200_AGP:
mdev = mgag200_g200_device_create(pdev, &mgag200_driver, type, flags);
break;
case G200_SE_A:
case G200_SE_B:
mdev = mgag200_g200se_device_create(pdev, &mgag200_driver, type, flags);
break;
case G200_WB:
mdev = mgag200_g200wb_device_create(pdev, &mgag200_driver, type, flags);
break;
case G200_EV:
mdev = mgag200_g200ev_device_create(pdev, &mgag200_driver, type, flags);
break;
case G200_EH:
mdev = mgag200_g200eh_device_create(pdev, &mgag200_driver, type, flags);
break;
case G200_EH3:
mdev = mgag200_g200eh3_device_create(pdev, &mgag200_driver, type, flags);
break;
case G200_ER:
mdev = mgag200_g200er_device_create(pdev, &mgag200_driver, type, flags);
break;
case G200_EW3:
mdev = mgag200_g200ew3_device_create(pdev, &mgag200_driver, type, flags);
break;
default:
dev_err(&pdev->dev, "Device type %d is unsupported\n", type);
return -ENODEV;
}
if (IS_ERR(mdev))
return PTR_ERR(mdev);
dev = &mdev->base;
ret = drm_dev_register(dev, 0);
if (ret)
return ret;
drm_fbdev_generic_setup(dev, 0);
return 0;
}
static void mgag200_pci_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
drm_dev_unregister(dev);
}
static struct pci_driver mgag200_pci_driver = {
.name = DRIVER_NAME,
.id_table = mgag200_pciidlist,
.probe = mgag200_pci_probe,
.remove = mgag200_pci_remove,
};
drm_module_pci_driver_if_modeset(mgag200_pci_driver, mgag200_modeset);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
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