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* Work in progress to support the i965 chipset as well; still works on i865, but

Browse Source 
doesn't work on i965 yet.
* B_GET_DISPLAY_MODE now returns the mode actually configured in the chip instead
  of the last mode set; while this isn't really necessary, it allows to check what
  mode was used during startup.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21321 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2007-06-04 15:32:01 +00:00
parent 189360b5d8
commit 3bac9ea19a
5 changed files with 333 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/add-ons/kernel/drivers/graphics/intel_extreme/device.cpp
+41 -4
View File
@@ -57,7 +57,7 @@ device_hooks gDeviceHooks = {
static status_t
checkDeviceInfo(struct intel_info *info)
check_device_info(struct intel_info *info)
{
if (!info || info->cookie_magic != INTEL_COOKIE_MAGIC)
return B_BAD_VALUE;
@@ -66,6 +66,38 @@ checkDeviceInfo(struct intel_info *info)
}
static int
getset_register(int argc, char **argv)
{
if (argc < 2 || argc > 3) {
kprintf("usage: %s <register> [set-to-value]\n", argv[0]);
return 0;
}
uint32 reg = parse_expression(argv[1]);
uint32 value = 0;
bool set = argc == 3;
if (set)
value = parse_expression(argv[2]);
kprintf("intel_extreme register %#lx\n", reg);
intel_info &info = *gDeviceInfo[0];
uint32 oldValue = read32(info.registers + reg);
kprintf(" %svalue: %#lx (%lu)\n", set ? "old " : "", oldValue, oldValue);
if (set) {
write32(info.registers + reg, value);
value = read32(info.registers + reg);
kprintf(" new value: %#lx (%lu)\n", value, value);
}
return 0;
}
// #pragma mark - Device Hooks
@@ -94,10 +126,15 @@ device_open(const char *name, uint32 /*flags*/, void **_cookie)
status_t status = B_OK;
// TODO: the second open will succeed even though the first one failed!
if (info->open_count++ == 0) {
// this device has been opened for the first time, so
// we allocate needed resources and initialize the structure
status = intel_extreme_init(*info);
if (status == B_OK) {
add_debugger_command("ie_reg", getset_register,
"dumps or sets the specified intel_extreme register");
}
}
release_lock(&gLock);
@@ -112,11 +149,10 @@ device_close(void *data)
TRACE((DEVICE_NAME ": close\n"));
struct intel_info *info;
if (checkDeviceInfo(info = (intel_info *)data) != B_OK)
if (check_device_info(info = (intel_info *)data) != B_OK)
return B_BAD_VALUE;
info->cookie_magic = INTEL_FREE_COOKIE_MAGIC;
return B_OK;
}
@@ -135,6 +171,7 @@ device_free(void *data)
if (info->open_count-- == 1) {
// release info structure
info->cookie_magic = 0;
remove_debugger_command("ie_reg", getset_register);
intel_extreme_uninit(*info);
}
@@ -149,7 +186,7 @@ device_ioctl(void *data, uint32 op, void *buffer, size_t bufferLength)
{
struct intel_info *info;
if (checkDeviceInfo(info = (intel_info *)data) != B_OK)
if (check_device_info(info = (intel_info *)data) != B_OK)
return B_BAD_VALUE;
switch (op) {