pci-acpi: remove duplicate code for _OSC
Remove the duplicated code in acpi_query_osc() and acpi_run_osc(). It simplifies the code very much. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Acked-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Kenji Kaneshige
Jesse Barnes
parent
49db139955
commit
8a7a4faf96
@ -46,19 +46,75 @@ static struct acpi_osc_data *acpi_get_osc_data(acpi_handle handle)
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static u8 OSC_UUID[16] = {0x5B, 0x4D, 0xDB, 0x33, 0xF7, 0x1F, 0x1C, 0x40, 0x96, 0x57, 0x74, 0x41, 0xC0, 0x3D, 0xD7, 0x66};
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static acpi_status
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acpi_query_osc (
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acpi_handle handle,
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u32 level,
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void *context,
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void **retval )
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static acpi_status acpi_run_osc(acpi_handle handle,
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struct acpi_osc_data *osc_data)
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{
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acpi_status status;
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struct acpi_object_list input;
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union acpi_object in_params[4];
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struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
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union acpi_object *out_obj;
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u32 osc_dw0;
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acpi_status status;
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struct acpi_object_list input;
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union acpi_object in_params[4];
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struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
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union acpi_object *out_obj;
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u32 osc_dw0, flags = osc_data->ctrlset_buf[OSC_QUERY_TYPE];
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/* Setting up input parameters */
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input.count = 4;
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input.pointer = in_params;
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in_params[0].type = ACPI_TYPE_BUFFER;
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in_params[0].buffer.length = 16;
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in_params[0].buffer.pointer = OSC_UUID;
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in_params[1].type = ACPI_TYPE_INTEGER;
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in_params[1].integer.value = 1;
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in_params[2].type = ACPI_TYPE_INTEGER;
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in_params[2].integer.value = 3;
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in_params[3].type = ACPI_TYPE_BUFFER;
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in_params[3].buffer.length = 12;
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in_params[3].buffer.pointer = (u8 *)osc_data->ctrlset_buf;
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status = acpi_evaluate_object(handle, "_OSC", &input, &output);
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if (ACPI_FAILURE(status))
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return status;
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out_obj = output.pointer;
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if (out_obj->type != ACPI_TYPE_BUFFER) {
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printk(KERN_DEBUG "Evaluate _OSC returns wrong type\n");
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status = AE_TYPE;
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goto out_kfree;
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}
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osc_dw0 = *((u32 *) out_obj->buffer.pointer);
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if (osc_dw0) {
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if (osc_dw0 & OSC_REQUEST_ERROR)
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printk(KERN_DEBUG "_OSC request fails\n");
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if (osc_dw0 & OSC_INVALID_UUID_ERROR)
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printk(KERN_DEBUG "_OSC invalid UUID\n");
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if (osc_dw0 & OSC_INVALID_REVISION_ERROR)
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printk(KERN_DEBUG "_OSC invalid revision\n");
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if (osc_dw0 & OSC_CAPABILITIES_MASK_ERROR) {
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if (flags & OSC_QUERY_ENABLE)
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goto out_success;
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printk(KERN_DEBUG "_OSC FW not grant req. control\n");
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status = AE_SUPPORT;
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goto out_kfree;
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}
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status = AE_ERROR;
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goto out_kfree;
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}
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out_success:
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if (flags & OSC_QUERY_ENABLE) {
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/* Update Global Control Set */
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osc_data->global_ctrlsets =
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*((u32 *)(out_obj->buffer.pointer + 8));
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}
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status = AE_OK;
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out_kfree:
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kfree(output.pointer);
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return status;
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}
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static acpi_status acpi_query_osc(acpi_handle handle,
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u32 level, void *context, void **retval)
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{
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acpi_status status;
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acpi_status *ret_status = (acpi_status *)retval;
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struct acpi_osc_data *osc_data;
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u32 flags = (unsigned long)context, temp;
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@ -81,57 +137,7 @@ acpi_query_osc (
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osc_data->ctrlset_buf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
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osc_data->ctrlset_buf[OSC_CONTROL_TYPE] = OSC_CONTROL_MASKS;
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/* Setting up input parameters */
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input.count = 4;
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input.pointer = in_params;
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in_params[0].type = ACPI_TYPE_BUFFER;
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in_params[0].buffer.length = 16;
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in_params[0].buffer.pointer = OSC_UUID;
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in_params[1].type = ACPI_TYPE_INTEGER;
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in_params[1].integer.value = 1;
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in_params[2].type = ACPI_TYPE_INTEGER;
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in_params[2].integer.value = 3;
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in_params[3].type = ACPI_TYPE_BUFFER;
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in_params[3].buffer.length = 12;
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in_params[3].buffer.pointer = (u8 *)osc_data->ctrlset_buf;
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status = acpi_evaluate_object(handle, "_OSC", &input, &output);
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if (ACPI_FAILURE(status))
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goto out_nofree;
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out_obj = output.pointer;
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if (out_obj->type != ACPI_TYPE_BUFFER) {
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printk(KERN_DEBUG
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"Evaluate _OSC returns wrong type\n");
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status = AE_TYPE;
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goto query_osc_out;
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}
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osc_dw0 = *((u32 *) out_obj->buffer.pointer);
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if (osc_dw0) {
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if (osc_dw0 & OSC_REQUEST_ERROR)
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printk(KERN_DEBUG "_OSC request fails\n");
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if (osc_dw0 & OSC_INVALID_UUID_ERROR)
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printk(KERN_DEBUG "_OSC invalid UUID\n");
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if (osc_dw0 & OSC_INVALID_REVISION_ERROR)
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printk(KERN_DEBUG "_OSC invalid revision\n");
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if (osc_dw0 & OSC_CAPABILITIES_MASK_ERROR) {
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/* Update Global Control Set */
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osc_data->global_ctrlsets =
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*((u32 *)(out_obj->buffer.pointer + 8));
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status = AE_OK;
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goto query_osc_out;
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}
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status = AE_ERROR;
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goto query_osc_out;
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}
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/* Update Global Control Set */
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osc_data->global_ctrlsets = *((u32 *)(out_obj->buffer.pointer + 8));
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status = AE_OK;
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query_osc_out:
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kfree(output.pointer);
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out_nofree:
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status = acpi_run_osc(handle, osc_data);
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*ret_status = status;
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osc_data->ctrlset_buf[OSC_QUERY_TYPE] = !OSC_QUERY_ENABLE;
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@ -144,67 +150,6 @@ acpi_query_osc (
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return status;
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}
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static acpi_status
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acpi_run_osc (
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acpi_handle handle,
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void *context)
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{
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acpi_status status;
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struct acpi_object_list input;
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union acpi_object in_params[4];
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struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
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union acpi_object *out_obj;
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u32 osc_dw0;
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/* Setting up input parameters */
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input.count = 4;
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input.pointer = in_params;
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in_params[0].type = ACPI_TYPE_BUFFER;
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in_params[0].buffer.length = 16;
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in_params[0].buffer.pointer = OSC_UUID;
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in_params[1].type = ACPI_TYPE_INTEGER;
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in_params[1].integer.value = 1;
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in_params[2].type = ACPI_TYPE_INTEGER;
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in_params[2].integer.value = 3;
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in_params[3].type = ACPI_TYPE_BUFFER;
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in_params[3].buffer.length = 12;
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in_params[3].buffer.pointer = (u8 *)context;
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status = acpi_evaluate_object(handle, "_OSC", &input, &output);
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if (ACPI_FAILURE (status))
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return status;
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out_obj = output.pointer;
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if (out_obj->type != ACPI_TYPE_BUFFER) {
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printk(KERN_DEBUG
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"Evaluate _OSC returns wrong type\n");
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status = AE_TYPE;
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goto run_osc_out;
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}
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osc_dw0 = *((u32 *) out_obj->buffer.pointer);
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if (osc_dw0) {
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if (osc_dw0 & OSC_REQUEST_ERROR)
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printk(KERN_DEBUG "_OSC request fails\n");
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if (osc_dw0 & OSC_INVALID_UUID_ERROR)
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printk(KERN_DEBUG "_OSC invalid UUID\n");
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if (osc_dw0 & OSC_INVALID_REVISION_ERROR)
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printk(KERN_DEBUG "_OSC invalid revision\n");
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if (osc_dw0 & OSC_CAPABILITIES_MASK_ERROR) {
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printk(KERN_DEBUG "_OSC FW not grant req. control\n");
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status = AE_SUPPORT;
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goto run_osc_out;
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}
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status = AE_ERROR;
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goto run_osc_out;
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}
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status = AE_OK;
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run_osc_out:
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kfree(output.pointer);
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return status;
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}
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/**
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* __pci_osc_support_set - register OS support to Firmware
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* @flags: OS support bits
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@ -260,7 +205,7 @@ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags)
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return AE_SUPPORT;
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}
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osc_data->ctrlset_buf[OSC_CONTROL_TYPE] |= ctrlset;
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status = acpi_run_osc(handle, osc_data->ctrlset_buf);
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status = acpi_run_osc(handle, osc_data);
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if (ACPI_FAILURE (status)) {
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osc_data->ctrlset_buf[OSC_CONTROL_TYPE] &= ~ctrlset;
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}
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