i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

finalized MMS (multihead) card support. Fixed system crashing with null pointer if 'secondary' mms card in system was used on it's non-primary heads while it's primary head was not in use. (hope this is readable :). In other words: rewrote copying ROMs for MMS cards. Kerneldriver now holds images for each card and head inside the kerneldriver independant of a card's driver being actually used or not. multihead cards can now be used as you wish: they nolonger need to be the 'primary' card in your system. hehe: 6 heads running here (two on a dualhead nvidia while 4 in a matrox mms. Test harness much in use, as all those cards still can't be used otherwise on BeOS.

Browse Source 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15211 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen
2005-11-29 10:40:55 +00:00
parent a6e6b1d36f
commit 9528941458
2 changed files with 65 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/add-ons/kernel/drivers/graphics/matrox/UPDATE.html
+1 -1
View File
@@ -4,7 +4,7 @@
</head>
<body>
<p><h2>Changes done for each driverversion:</h2></p>
<p><h1>head (SVN 0.25, Rudolf)</h1></p>
<p><h1>head (SVN 0.26, Rudolf)</h1></p>
<ul>
<li><strong>G200-G550:</strong>
<ul>
src/add-ons/kernel/drivers/graphics/matrox/driver.c
+64 -2
View File
@@ -58,6 +58,7 @@ struct device_info {
vuint32 *regs; /* kernel's pointer to memory mapped registers */
pci_info pcii; /* a convenience copy of the pci info for this device */
char name[B_OS_NAME_LENGTH]; /* where we keep the name of the device for publishing and comparing */
uint8 rom_mirror[32768]; /* mirror of the ROM (is needed for MMS cards) */
};
typedef struct {
@@ -76,6 +77,7 @@ static status_t write_hook (void* dev, off_t pos, const void* buf, size_t* len);
static status_t control_hook (void* dev, uint32 msg, void *buf, size_t len);
static status_t map_device(device_info *di);
static void unmap_device(device_info *di);
static void copy_rom(device_info *di);
static void probe_devices(void);
static int32 gx00_interrupt(void *data);
@@ -416,8 +418,8 @@ static status_t map_device(device_info *di)
}
if (found)
{
/* make the copy from the primary VGA card */
memcpy (si->rom_mirror, pd->di[index].si->rom_mirror, 32768);
/* make the copy from the primary VGA card on our bus */
memcpy (si->rom_mirror, pd->di[index].rom_mirror, 32768);
}
else
{
@@ -569,6 +571,62 @@ static void unmap_device(device_info *di) {
di->regs = NULL;
}
static void copy_rom(device_info *di)
{
char buffer[B_OS_NAME_LENGTH];
uint8 *rom_temp;
area_id rom_area;
uint32 tmpUlong;
pci_info *pcii = &(di->pcii);
/* MIL1 has frame_buffer in [1], while MIL2 and later have frame_buffer in [0] */
int frame_buffer = 0;
/* correct layout for MIL1 */
//fixme: checkout Mystique 170 and 220...
if (di->pcii.device_id == 0x0519) frame_buffer = 1;
/* enable memory mapped IO, disable VGA I/O - this is standard*/
tmpUlong = get_pci(PCI_command, 4);
tmpUlong |= 0x00000002;
tmpUlong &= 0xfffffffe;
set_pci(PCI_command, 4, tmpUlong);
/* work out a name for the ROM mapping*/
sprintf(buffer, DEVICE_FORMAT " rom",
di->pcii.vendor_id, di->pcii.device_id,
di->pcii.bus, di->pcii.device, di->pcii.function);
/*place ROM over the fbspace (this is definately safe)*/
tmpUlong = di->pcii.u.h0.base_registers[frame_buffer];
tmpUlong |= 0x00000001;
set_pci(PCI_rom_base, 4, tmpUlong);
rom_area = map_physical_memory(
buffer,
(void *)di->pcii.u.h0.base_registers[frame_buffer],
32768,
B_ANY_KERNEL_ADDRESS,
B_READ_AREA,
(void **)&(rom_temp)
);
/* if mapping ROM to vmem was successfull copy it */
if (rom_area >= 0)
{
/* copy ROM for future reference (MMS cards) */
memcpy (di->rom_mirror, rom_temp, 32768);
/* disable ROM and delete the area */
set_pci(PCI_rom_base, 4, 0);
delete_area(rom_area);
}
/* disable memory mapped IO */
tmpUlong = get_pci(PCI_command, 4);
tmpUlong &= 0xfffffffc;
set_pci(PCI_command, 4, tmpUlong);
}
static void probe_devices(void)
{
uint32 pci_index = 0;
@@ -612,6 +670,10 @@ static void probe_devices(void)
di->shared_area = -1;
/* mark pointer to shared data as invalid */
di->si = NULL;
/* copy ROM for MMS (multihead with multiple GPU) cards:
* they might only have a ROM on the primary adaptor.
* (Confirmed G200MMS.) */
copy_rom(di);
/* inc pointer to device info */
di++;
/* inc count */