diff options
Diffstat (limited to 'drivers/video/fbdev/matrox/matroxfb_misc.c')
| -rw-r--r-- | drivers/video/fbdev/matrox/matroxfb_misc.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/video/fbdev/matrox/matroxfb_misc.c b/drivers/video/fbdev/matrox/matroxfb_misc.c index 9948ca2a3046..2c5f0099532b 100644 --- a/drivers/video/fbdev/matrox/matroxfb_misc.c +++ b/drivers/video/fbdev/matrox/matroxfb_misc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400 @@ -84,6 +85,7 @@ * */ +#include <linux/export.h> #include "matroxfb_misc.h" #include <linux/interrupt.h> @@ -389,7 +391,7 @@ void matroxfb_vgaHWrestore(struct matrox_fb_info *minfo) static void get_pins(unsigned char __iomem* pins, struct matrox_bios* bd) { unsigned int b0 = readb(pins); - + if (b0 == 0x2E && readb(pins+1) == 0x41) { unsigned int pins_len = readb(pins+2); unsigned int i; @@ -425,7 +427,7 @@ static void get_pins(unsigned char __iomem* pins, struct matrox_bios* bd) { static void get_bios_version(unsigned char __iomem * vbios, struct matrox_bios* bd) { unsigned int pcir_offset; - + pcir_offset = readb(vbios + 24) | (readb(vbios + 25) << 8); if (pcir_offset >= 26 && pcir_offset < 0xFFE0 && readb(vbios + pcir_offset ) == 'P' && @@ -450,7 +452,7 @@ static void get_bios_version(unsigned char __iomem * vbios, struct matrox_bios* static void get_bios_output(unsigned char __iomem* vbios, struct matrox_bios* bd) { unsigned char b; - + b = readb(vbios + 0x7FF1); if (b == 0xFF) { b = 0; @@ -460,7 +462,7 @@ static void get_bios_output(unsigned char __iomem* vbios, struct matrox_bios* bd static void get_bios_tvout(unsigned char __iomem* vbios, struct matrox_bios* bd) { unsigned int i; - + /* Check for 'IBM .*(V....TVO' string - it means TVO BIOS */ bd->output.tvout = 0; if (readb(vbios + 0x1D) != 'I' || @@ -471,7 +473,7 @@ static void get_bios_tvout(unsigned char __iomem* vbios, struct matrox_bios* bd) } for (i = 0x2D; i < 0x2D + 128; i++) { unsigned char b = readb(vbios + i); - + if (b == '(' && readb(vbios + i + 1) == 'V') { if (readb(vbios + i + 6) == 'T' && readb(vbios + i + 7) == 'V' && @@ -487,7 +489,7 @@ static void get_bios_tvout(unsigned char __iomem* vbios, struct matrox_bios* bd) static void parse_bios(unsigned char __iomem* vbios, struct matrox_bios* bd) { unsigned int pins_offset; - + if (readb(vbios) != 0x55 || readb(vbios + 1) != 0xAA) { return; } @@ -647,9 +649,9 @@ static int parse_pins5(struct matrox_fb_info *minfo, const struct matrox_bios *bd) { unsigned int mult; - + mult = bd->pins[4]?8000:6000; - + minfo->limits.pixel.vcomax = (bd->pins[ 38] == 0xFF) ? 600000 : bd->pins[ 38] * mult; minfo->limits.system.vcomax = (bd->pins[ 36] == 0xFF) ? minfo->limits.pixel.vcomax : bd->pins[ 36] * mult; minfo->limits.video.vcomax = (bd->pins[ 37] == 0xFF) ? minfo->limits.system.vcomax : bd->pins[ 37] * mult; @@ -672,7 +674,10 @@ static int parse_pins5(struct matrox_fb_info *minfo, if (bd->pins[115] & 4) { minfo->values.reg.mctlwtst_core = minfo->values.reg.mctlwtst; } else { - u_int32_t wtst_xlat[] = { 0, 1, 5, 6, 7, 5, 2, 3 }; + static const u8 wtst_xlat[] = { + 0, 1, 5, 6, 7, 5, 2, 3 + }; + minfo->values.reg.mctlwtst_core = (minfo->values.reg.mctlwtst & ~7) | wtst_xlat[minfo->values.reg.mctlwtst & 7]; } @@ -766,7 +771,7 @@ void matroxfb_read_pins(struct matrox_fb_info *minfo) u32 biosbase; u32 fbbase; struct pci_dev *pdev = minfo->pcidev; - + memset(&minfo->bios, 0, sizeof(minfo->bios)); pci_read_config_dword(pdev, PCI_OPTION_REG, &opt); pci_write_config_dword(pdev, PCI_OPTION_REG, opt | PCI_OPTION_ENABLE_ROM); @@ -786,7 +791,7 @@ void matroxfb_read_pins(struct matrox_fb_info *minfo) } else { unsigned int ven = readb(b+0x64+0) | (readb(b+0x64+1) << 8); unsigned int dev = readb(b+0x64+2) | (readb(b+0x64+3) << 8); - + if (ven != pdev->vendor || dev != pdev->device) { printk(KERN_INFO "matroxfb: Legacy BIOS is for %04X:%04X, while this device is %04X:%04X\n", ven, dev, pdev->vendor, pdev->device); |