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-rw-r--r--drivers/platform/x86/toshiba_acpi.c119
1 files changed, 60 insertions, 59 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index edd8f3dad6b4..ed3671cfddab 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -71,7 +71,8 @@ MODULE_LICENSE("GPL");
/* Toshiba ACPI method paths */
#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
-/* Toshiba HCI interface definitions
+/* The Toshiba configuration interface is composed of the HCI and the SCI,
+ * which are defined as follows:
*
* HCI is Toshiba's "Hardware Control Interface" which is supposed to
* be uniform across all their models. Ideally we would just call
@@ -84,7 +85,7 @@ MODULE_LICENSE("GPL");
* conceal differences in hardware between different models.
*/
-#define HCI_WORDS 6
+#define TCI_WORDS 6
/* operations */
#define HCI_SET 0xff00
@@ -274,22 +275,22 @@ static int write_acpi_int(const char *methodName, int val)
return (status == AE_OK) ? 0 : -EIO;
}
-/* Perform a raw HCI call. Here we don't care about input or output buffer
- * format.
+/* Perform a raw configuration call. Here we don't care about input or output
+ * buffer format.
*/
-static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
- const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
+static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
+ const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
{
struct acpi_object_list params;
- union acpi_object in_objs[HCI_WORDS];
+ union acpi_object in_objs[TCI_WORDS];
struct acpi_buffer results;
- union acpi_object out_objs[HCI_WORDS + 1];
+ union acpi_object out_objs[TCI_WORDS + 1];
acpi_status status;
int i;
- params.count = HCI_WORDS;
+ params.count = TCI_WORDS;
params.pointer = in_objs;
- for (i = 0; i < HCI_WORDS; ++i) {
+ for (i = 0; i < TCI_WORDS; ++i) {
in_objs[i].type = ACPI_TYPE_INTEGER;
in_objs[i].integer.value = in[i];
}
@@ -300,7 +301,7 @@ static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
status = acpi_evaluate_object(dev->acpi_dev->handle,
(char *)dev->method_hci, &params,
&results);
- if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
+ if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
for (i = 0; i < out_objs->package.count; ++i) {
out[i] = out_objs->package.elements[i].integer.value;
}
@@ -318,9 +319,9 @@ static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
u32 in1, u32 *result)
{
- u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
- u32 out[HCI_WORDS];
- acpi_status status = hci_raw(dev, in, out);
+ u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
+ u32 out[TCI_WORDS];
+ acpi_status status = tci_raw(dev, in, out);
*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
return status;
}
@@ -328,9 +329,9 @@ static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
u32 *out1, u32 *result)
{
- u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
- acpi_status status = hci_raw(dev, in, out);
+ u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
+ acpi_status status = tci_raw(dev, in, out);
*out1 = out[2];
*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
return status;
@@ -339,9 +340,9 @@ static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
u32 in1, u32 in2, u32 *result)
{
- u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
- u32 out[HCI_WORDS];
- acpi_status status = hci_raw(dev, in, out);
+ u32 in[TCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
+ u32 out[TCI_WORDS];
+ acpi_status status = tci_raw(dev, in, out);
*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
return status;
}
@@ -349,9 +350,9 @@ static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
u32 *out1, u32 *out2, u32 *result)
{
- u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
- u32 out[HCI_WORDS];
- acpi_status status = hci_raw(dev, in, out);
+ u32 in[TCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
+ u32 out[TCI_WORDS];
+ acpi_status status = tci_raw(dev, in, out);
*out1 = out[2];
*out2 = out[3];
*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
@@ -363,11 +364,11 @@ static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
static int sci_open(struct toshiba_acpi_dev *dev)
{
- u32 in[HCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
pr_err("ACPI call to open SCI failed\n");
return 0;
@@ -387,11 +388,11 @@ static int sci_open(struct toshiba_acpi_dev *dev)
static void sci_close(struct toshiba_acpi_dev *dev)
{
- u32 in[HCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
pr_err("ACPI call to close SCI failed\n");
return;
@@ -408,9 +409,9 @@ static void sci_close(struct toshiba_acpi_dev *dev)
static acpi_status sci_read(struct toshiba_acpi_dev *dev, u32 reg,
u32 *out1, u32 *result)
{
- u32 in[HCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
- acpi_status status = hci_raw(dev, in, out);
+ u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
+ acpi_status status = tci_raw(dev, in, out);
*out1 = out[2];
*result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
return status;
@@ -419,9 +420,9 @@ static acpi_status sci_read(struct toshiba_acpi_dev *dev, u32 reg,
static acpi_status sci_write(struct toshiba_acpi_dev *dev, u32 reg,
u32 in1, u32 *result)
{
- u32 in[HCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
- u32 out[HCI_WORDS];
- acpi_status status = hci_raw(dev, in, out);
+ u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
+ u32 out[TCI_WORDS];
+ acpi_status status = tci_raw(dev, in, out);
*result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
return status;
}
@@ -429,14 +430,14 @@ static acpi_status sci_write(struct toshiba_acpi_dev *dev, u32 reg,
/* Illumination support */
static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
{
- u32 in[HCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return 0;
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
pr_err("ACPI call to query Illumination support failed\n");
@@ -502,14 +503,14 @@ static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
/* KBD Illumination */
static int toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
{
- u32 in[HCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return 0;
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
pr_err("ACPI call to query kbd illumination support failed\n");
@@ -663,10 +664,10 @@ static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
{
acpi_status status;
- u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
+ u32 out[TCI_WORDS];
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
pr_info("ACPI call to get ECO led failed\n");
return 0;
@@ -679,11 +680,11 @@ static enum led_brightness toshiba_eco_mode_get_status(struct led_classdev *cdev
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, eco_led);
- u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
pr_err("ACPI call to get ECO led failed\n");
return LED_OFF;
@@ -697,13 +698,13 @@ static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, eco_led);
- u32 in[HCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
/* Switch the Eco Mode led on/off */
in[2] = (brightness) ? 1 : 0;
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
pr_err("ACPI call to set ECO led failed\n");
return;
@@ -713,14 +714,14 @@ static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
/* Accelerometer support */
static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
{
- u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
/* Check if the accelerometer call exists,
* this call also serves as initialization
*/
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
pr_err("ACPI call to query the accelerometer failed\n");
return -EIO;
@@ -739,12 +740,12 @@ static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
u32 *xy, u32 *z)
{
- u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
/* Check the Accelerometer status */
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
pr_err("ACPI call to query the accelerometer failed\n");
return -EIO;
@@ -925,8 +926,8 @@ static int lcd_proc_open(struct inode *inode, struct file *file)
static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
{
- u32 in[HCI_WORDS] = { HCI_SET, HCI_LCD_BRIGHTNESS, 0, 0, 0, 0 };
- u32 out[HCI_WORDS];
+ u32 in[TCI_WORDS] = { HCI_SET, HCI_LCD_BRIGHTNESS, 0, 0, 0, 0 };
+ u32 out[TCI_WORDS];
acpi_status status;
if (dev->tr_backlight_supported) {
@@ -939,7 +940,7 @@ static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
}
in[2] = value << HCI_LCD_BRIGHTNESS_SHIFT;
- status = hci_raw(dev, in, out);
+ status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
pr_err("ACPI call to set brightness failed");
return -EIO;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 17:52:05 +0000