shark/bbswitch-g14
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Revert "Support Optimus machines through WMMX (GH-2)"

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This reverts commit 0ec41fa2da2a56b11d7049ae48ddc355e3a6fceb.
This commit is contained in:
Lekensteyn 2012-01-28 10:57:03 +01:00
parent f4c2fadaf5
commit e321debb5b
1 changed files with 7 additions and 21 deletions
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26
bbswitch.c
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@ -44,7 +44,7 @@ static const char acpi_optimus_dsm_muid[16] = {
};
#define MXM_WMMX_GUID "F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0"
#define MXM_WMMX_FUNC_DSM 0x4D53445F /* NVIDIA/Optimus DSM */
#define MXM_WMMX_FUNC_DSM 0x4D53445F /* NVIDIA DSM */
static const char acpi_nvidia_dsm_muid[16] = {
0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D,
0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4
@ -73,7 +73,6 @@ enum dsm_type {
DSM_TYPE_OPTIMUS,
DSM_TYPE_NVIDIA,
/* _DSM call through a WMI MX method */
DSM_TYPE_OPTIMUS_WMI,
DSM_TYPE_NVIDIA_WMI,
};
static enum dsm_type dsm_type = DSM_TYPE_UNSUPPORTED;
@ -221,9 +220,10 @@ static int has_wmi_func(const char muid[16], int revid, int sfnc) {
}
static int bbswitch_optimus_dsm(void) {
if (dsm_type == DSM_TYPE_OPTIMUS) {
char args[] = {1, 0, 0, 3};
u32 result = 0;
if (dsm_type == DSM_TYPE_OPTIMUS) {
if (acpi_call_dsm(dis_handle, acpi_optimus_dsm_muid, 0x100, 0x1A, args,
&result)) {
// failure
@ -231,13 +231,6 @@ static int bbswitch_optimus_dsm(void) {
}
printk(KERN_DEBUG "bbswitch: Result of Optimus _DSM call: %08X\n",
result);
} else if (dsm_type == DSM_TYPE_OPTIMUS_WMI) {
if (wmmx_call(acpi_optimus_dsm_muid, 0x100, 0x1A, args, &result)) {
// failure
return 1;
}
printk(KERN_DEBUG "bbswitch: Result of WMMX call for Optimus: %08X\n",
result);
}
return 0;
}
@ -453,20 +446,13 @@ static int __init bbswitch_init(void) {
return -ENODEV;
}
if (has_wmi_func(acpi_optimus_dsm_muid, 0x100, 0x1A)) {
dsm_type = DSM_TYPE_OPTIMUS_WMI;
printk(KERN_INFO "bbswitch: detected an Optimus WMMX function\n");
if (has_dsm_func(acpi_optimus_dsm_muid, 0x100, 0x1A)) {
dsm_type = DSM_TYPE_OPTIMUS;
printk(KERN_INFO "bbswitch: detected an Optimus _DSM function\n");
} else if (has_wmi_func(acpi_nvidia_dsm_muid, 0x102, 0x3)) {
dsm_type = DSM_TYPE_NVIDIA_WMI;
printk(KERN_INFO "bbswitch: detected a nVidia WMMX function\n");
} else if (has_dsm_func(acpi_optimus_dsm_muid, 0x100, 0x1A)) {
/* necessary for at least Lenovo Ideapad Z570 which does not have the
* WMMX method */
dsm_type = DSM_TYPE_OPTIMUS;
printk(KERN_INFO "bbswitch: detected an Optimus _DSM function\n");
} else if (has_dsm_func(acpi_nvidia_dsm_muid, 0x102, 0x3)) {
/* necessary for at least Dell XPS L501X bios A08 which does not have
* the WMMX method */
dsm_type = DSM_TYPE_NVIDIA;
printk(KERN_INFO "bbswitch: detected a nVidia _DSM function\n");
} else {