---
drivers/platform/x86/panasonic-laptop.c | 576 +++++++++++++++++++++---
1 file changed, 518 insertions(+), 58 deletions(-)
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 59e38a1d2830..55b6d6527f20 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -12,6 +12,19 @@
*---------------------------------------------------------------------------
*
* ChangeLog:
+ * Aug.18, 2020 Kenneth Chan <kenneth.t.chan@xxxxxxxxx>
+ * -v0.98 add support for battery charging threshold (eco mode)
+ * add write support for ac/dc brightness to hardware
+ *
+ * Mar.12, 2018 Kenneth Chan <kenneth.t.chan@xxxxxxxxx>
+ * -v0.97 add support for cdpower switch
+ * call CDDR instead of CDDI when switching off optical
+ * drive to avoid a wrong arg error
+ * add write support to mute
+ *
+ * Jan.13, 2009 Martin Lucina <mato@xxxxxxxxxx>
+ * -v0.96 add support for optical drive power in Y and W series
+ *
* Sep.23, 2008 Harald Welte <laforge@xxxxxxxxxxxx>
* -v0.95 rename driver from drivers/acpi/pcc_acpi.c to
* drivers/misc/panasonic-laptop.c
@@ -115,14 +128,10 @@
#include <linux/acpi.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
+#include <linux/platform_device.h>
-#ifndef ACPI_HOTKEY_COMPONENT
-#define ACPI_HOTKEY_COMPONENT 0x10000000
-#endif
-#define _COMPONENT ACPI_HOTKEY_COMPONENT
-
-MODULE_AUTHOR("Hiroshi Miura, David Bronaugh and Harald Welte");
+MODULE_AUTHOR("Hiroshi Miura, David Bronaugh, Harald Welte, Martin Lucina and Kenneth Chan");
MODULE_DESCRIPTION("ACPI HotKey driver for Panasonic Let's Note laptops");
MODULE_LICENSE("GPL");
@@ -134,7 +143,10 @@ MODULE_LICENSE("GPL");
#define METHOD_HKEY_SQTY "SQTY"
#define METHOD_HKEY_SINF "SINF"
#define METHOD_HKEY_SSET "SSET"
-#define HKEY_NOTIFY 0x80
+#define METHOD_ECWR "\\_SB.ECWR"
+#define HKEY_NOTIFY 0x80
+#define ECO_MODE_OFF 0x00
+#define ECO_MODE_ON 0x80
#define ACPI_PCC_DRIVER_NAME "Panasonic Laptop Support"
#define ACPI_PCC_DEVICE_NAME "Hotkey"
@@ -143,7 +155,7 @@ MODULE_LICENSE("GPL");
#define ACPI_PCC_INPUT_PHYS "panasonic/hkey0"
/* LCD_TYPEs: 0 = Normal, 1 = Semi-transparent
- ENV_STATEs: Normal temp=0x01, High temp=0x81, N/A=0x00
+ ECO_MODEs: 0x03 = off, 0x83 = on
*/
enum SINF_BITS { SINF_NUM_BATTERIES = 0,
SINF_LCD_TYPE,
@@ -155,7 +167,8 @@ enum SINF_BITS { SINF_NUM_BATTERIES = 0,
SINF_DC_CUR_BRIGHT,
SINF_MUTE,
SINF_RESERVED,
- SINF_ENV_STATE,
+ SINF_ECO_MODE = 0x0A,
+ SINF_CUR_BRIGHT = 0x0D,
SINF_STICKY_KEY = 0x80,
};
/* R1 handles SINF_AC_CUR_BRIGHT as SINF_CUR_BRIGHT, doesn't know AC state */
@@ -208,13 +221,25 @@ static const struct key_entry panasonic_keymap[] = {
struct pcc_acpi {
acpi_handle handle;
unsigned long num_sifr;
- int sticky_mode;
+ int sticky_key;
+ int eco_mode;
+ int mute;
+ int ac_brightness;
+ int dc_brightness;
+ int current_brightness;
u32 *sinf;
struct acpi_device *device;
struct input_dev *input_dev;
struct backlight_device *backlight;
+ struct platform_device *platform;
};
+/* Map brightness from 0-100% to 0x00-0xFF */
+static int backlight_map[] = { 0x08, 0x14, 0x20, 0x2D, 0x39, 0x45,
+ 0x52, 0x5E, 0x6A, 0x77, 0x83, 0x8F,
+ 0x9C, 0xA8, 0xB4, 0xC1, 0xCD, 0xD9,
+ 0xE6, 0xF2, 0xFF };
+
/* method access functions */
static int acpi_pcc_write_sset(struct pcc_acpi *pcc, int func, int val)
{
@@ -246,8 +271,7 @@ static inline int acpi_pcc_get_sqty(struct acpi_device *device)
if (ACPI_SUCCESS(status))
return s;
else {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "evaluation error HKEY.SQTY\n"));
+ pr_err("evaluation error HKEY.SQTY\n");
return -EINVAL;
}
}
@@ -262,21 +286,19 @@ static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc)
status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, NULL,
&buffer);
if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "evaluation error HKEY.SINF\n"));
+ pr_err("evaluation error HKEY.SINF\n");
return 0;
}
hkey = buffer.pointer;
if (!hkey || (hkey->type != ACPI_TYPE_PACKAGE)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF\n"));
+ pr_err("Invalid HKEY.SINF\n");
status = AE_ERROR;
goto end;
}
if (pcc->num_sifr < hkey->package.count) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "SQTY reports bad SINF length\n"));
+ pr_err("SQTY reports bad SINF length\n");
status = AE_ERROR;
goto end;
}
@@ -286,8 +308,7 @@ static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc)
if (likely(element->type == ACPI_TYPE_INTEGER)) {
pcc->sinf[i] = element->integer.value;
} else
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Invalid HKEY.SINF data\n"));
+ pr_err("Invalid HKEY.SINF data\n");
}
pcc->sinf[hkey->package.count] = -1;
@@ -303,14 +324,37 @@ static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc)
* logic to receive events in case a power supply is plugged in
* or removed */
+/* Helper function to map brightness value (0x1-0x15) to brightness
+ * level (0x0 to 0xFF)
+ */
+static int pcc_bl_val_to_level(int val)
+{
+ int level;
+
+ for (level = 0; level < ARRAY_SIZE(backlight_map); level++) {
+ if (backlight_map[level] >= val) {
+ pr_debug("Current backlight level: 0x%X - index: %d\n",
+ backlight_map[level], level);
+ break;
+ }
+ }
+ return level;
+}
+
static int bl_get(struct backlight_device *bd)
{
+ int level;
struct pcc_acpi *pcc = bl_get_data(bd);
if (!acpi_pcc_retrieve_biosdata(pcc))
return -EIO;
- return pcc->sinf[SINF_AC_CUR_BRIGHT];
+ if (pcc->num_sifr < 0xe)
+ level = pcc->sinf[SINF_AC_CUR_BRIGHT];
+ else
+ level = pcc_bl_val_to_level(pcc->sinf[SINF_CUR_BRIGHT]);
+
+ return level;
}
static int bl_set_status(struct backlight_device *bd)
@@ -332,7 +376,10 @@ static int bl_set_status(struct backlight_device *bd)
bright > pcc->sinf[SINF_AC_MAX_BRIGHT])
return -EINVAL;
- rc = acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, bright);
+ if (pcc->num_sifr >= 0xe)
+ rc = acpi_pcc_write_sset(pcc, SINF_CUR_BRIGHT, backlight_map[bright]);
+ else
+ rc = acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, bright);
if (rc < 0)
return rc;
@@ -345,9 +392,101 @@ static const struct backlight_ops pcc_backlight_ops = {
};
+/* returns ACPI_SUCCESS if methods to control optical drive are present */
+
+static acpi_status check_optd_present(void)
+{
+ acpi_status status = AE_OK;
+ acpi_handle handle;
+
+ status = acpi_get_handle(NULL, "\\_SB.STAT", &handle);
+ if (ACPI_FAILURE(status))
+ goto out;
+ status = acpi_get_handle(NULL, "\\_SB.FBAY", &handle);
+ if (ACPI_FAILURE(status))
+ goto out;
+ status = acpi_get_handle(NULL, "\\_SB.CDDI", &handle);
+ if (ACPI_FAILURE(status))
+ goto out;
+
+out:
+ return status;
+}
+
+/* get optical driver power state */
+
+static int get_optd_power_state(void)
+{
+ acpi_status status;
+ unsigned long long state;
+ int result;
+
+ status = acpi_evaluate_integer(NULL, "\\_SB.STAT", NULL, &state);
+ if (ACPI_FAILURE(status)) {
+ pr_err("evaluation error _SB.STAT\n");
+ result = -EIO;
+ goto out;
+ }
+ switch (state) {
+ case 0: /* power off */
+ result = 0;
+ break;
+ case 0x0f: /* power on */
+ result = 1;
+ break;
+ default:
+ result = -EIO;
+ break;
+ }
+
+out:
+ return result;
+}
+
+/* set optical drive power state */
+
+static int set_optd_power_state(int new_state)
+{
+ int result;
+ acpi_status status;
+
+ result = get_optd_power_state();
+ if (result < 0)
+ goto out;
+ if (new_state == result)
+ goto out;
+
+ switch (new_state) {
+ case 0: /* power off */
+ /* Call CDDR instead, since they both call the same method
+ * while CDDI takes 1 arg and we are not quite sure what it is.
+ */
+ status = acpi_evaluate_object(NULL, "\\_SB.CDDR", NULL, NULL);
+ if (ACPI_FAILURE(status)) {
+ pr_err("evaluation error _SB.CDDR\n");
+ result = -EIO;
+ }
+ break;
+ case 1: /* power on */
+ status = acpi_evaluate_object(NULL, "\\_SB.FBAY", NULL, NULL);
+ if (ACPI_FAILURE(status)) {
+ pr_err("evaluation error _SB.FBAY\n");
+ result = -EIO;
+ }
+ break;
+ default:
+ result = -EINVAL;
+ break;
+ }
+
+out:
+ return result;
+}
+
+
/* sysfs user interface functions */
-static ssize_t show_numbatt(struct device *dev, struct device_attribute *attr,
+static ssize_t numbatt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct acpi_device *acpi = to_acpi_device(dev);
@@ -359,7 +498,7 @@ static ssize_t show_numbatt(struct device *dev, struct device_attribute *attr,
return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_NUM_BATTERIES]);
}
-static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr,
+static ssize_t lcdtype_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct acpi_device *acpi = to_acpi_device(dev);
@@ -371,7 +510,7 @@ static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr,
return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_LCD_TYPE]);
}
-static ssize_t show_mute(struct device *dev, struct device_attribute *attr,
+static ssize_t mute_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct acpi_device *acpi = to_acpi_device(dev);
@@ -383,8 +522,26 @@ static ssize_t show_mute(struct device *dev, struct device_attribute *attr,
return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_MUTE]);
}
-static ssize_t show_sticky(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t mute_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int err, val;
+
+ err = kstrtoint(buf, 0, &val);
+ if (err)
+ return err;
+ if (val == 0 || val == 1) {
+ acpi_pcc_write_sset(pcc, SINF_MUTE, val);
+ pcc->mute = val;
+ }
+
+ return count;
+}
+
+static ssize_t sticky_key_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct acpi_device *acpi = to_acpi_device(dev);
struct pcc_acpi *pcc = acpi_driver_data(acpi);
@@ -392,35 +549,263 @@ static ssize_t show_sticky(struct device *dev, struct device_attribute *attr,
if (!acpi_pcc_retrieve_biosdata(pcc))
return -EIO;
- return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_STICKY_KEY]);
+ return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sticky_key);
}
-static ssize_t set_sticky(struct device *dev, struct device_attribute *attr,
+static ssize_t sticky_key_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct acpi_device *acpi = to_acpi_device(dev);
struct pcc_acpi *pcc = acpi_driver_data(acpi);
- int val;
+ int err, val;
- if (count && sscanf(buf, "%i", &val) == 1 &&
- (val == 0 || val == 1)) {
+ err = kstrtoint(buf, 0, &val);
+ if (err)
+ return err;
+ if (val == 0 || val == 1) {
acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, val);
- pcc->sticky_mode = val;
+ pcc->sticky_key = val;
+ }
+
+ return count;
+}
+
+static ssize_t eco_mode_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int result;
+
+ if (!acpi_pcc_retrieve_biosdata(pcc))
+ return -EIO;
+
+ switch (pcc->sinf[SINF_ECO_MODE]) {
+ case (ECO_MODE_OFF + 3):
+ result = 0;
+ break;
+ case (ECO_MODE_ON + 3):
+ result = 1;
+ break;
+ default:
+ result = -EIO;
+ break;
+ }
+ return snprintf(buf, PAGE_SIZE, "%u\n", result);
+}
+
+static ssize_t eco_mode_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int err, rc, state;
+
+ union acpi_object param[2];
+ struct acpi_object_list input;
+ acpi_status status;
+
+ param[0].type = ACPI_TYPE_INTEGER;
+ param[0].integer.value = 0x15;
+ param[1].type = ACPI_TYPE_INTEGER;
+ input.count = 2;
+ input.pointer = param;
+
+ err = kstrtoint(buf, 0, &state);
+ if (err)
+ return err;
+
+ switch (state) {
+ case 0:
+ param[1].integer.value = ECO_MODE_OFF;
+ pcc->sinf[SINF_ECO_MODE] = 0;
+ pcc->eco_mode = 0;
+ break;
+ case 1:
+ param[1].integer.value = ECO_MODE_ON;
+ pcc->sinf[SINF_ECO_MODE] = 1;
+ pcc->eco_mode = 1;
+ break;
+ default:
+ /* nothing to do */
+ rc = -EIO;
+ break;
+ }
+
+ status = acpi_evaluate_object(NULL, METHOD_ECWR,
+ &input, NULL);
+ if (ACPI_FAILURE(status)) {
+ pr_err("%s evaluation failed\n", METHOD_ECWR);
+ return -EINVAL;
+ }
+
+ return count;
+}
+
+static ssize_t ac_brightness_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc))
+ return -EIO;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_AC_CUR_BRIGHT]);
+}
+
+static ssize_t ac_brightness_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int err, val;
+
+ err = kstrtoint(buf, 0, &val);
+ if (err)
+ return err;
+ if (val >= 0 || val <= 255) {
+ acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, val);
+ pcc->ac_brightness = val;
}
return count;
}
-static DEVICE_ATTR(numbatt, S_IRUGO, show_numbatt, NULL);
-static DEVICE_ATTR(lcdtype, S_IRUGO, show_lcdtype, NULL);
-static DEVICE_ATTR(mute, S_IRUGO, show_mute, NULL);
-static DEVICE_ATTR(sticky_key, S_IRUGO | S_IWUSR, show_sticky, set_sticky);
+static ssize_t dc_brightness_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc))
+ return -EIO;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_DC_CUR_BRIGHT]);
+}
+
+static ssize_t dc_brightness_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int err, val;
+
+ err = kstrtoint(buf, 0, &val);
+ if (err)
+ return err;
+ if (val >= 0 || val <= 255) {
+ acpi_pcc_write_sset(pcc, SINF_DC_CUR_BRIGHT, val);
+ pcc->dc_brightness = val;
+ }
+
+ return count;
+}
+
+static ssize_t current_brightness_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+
+ if (!acpi_pcc_retrieve_biosdata(pcc))
+ return -EIO;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", pcc->sinf[SINF_CUR_BRIGHT]);
+}
+
+static ssize_t current_brightness_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int err, val;
+
+ err = kstrtoint(buf, 0, &val);
+ if (err)
+ return err;
+
+ if (val >= 0 || val <= 255) {
+ err = acpi_pcc_write_sset(pcc, SINF_CUR_BRIGHT, val);
+ pcc->current_brightness = val;
+ }
+
+ return count;
+}
+
+static ssize_t brightness_level_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int level;
+
+ if (!acpi_pcc_retrieve_biosdata(pcc))
+ return -EIO;
+
+ level = pcc_bl_val_to_level(pcc->sinf[SINF_CUR_BRIGHT]);
+ return snprintf(buf, PAGE_SIZE, "%u\n", level);
+}
+
+static ssize_t brightness_level_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct acpi_device *acpi = to_acpi_device(dev);
+ struct pcc_acpi *pcc = acpi_driver_data(acpi);
+ int err, val;
+
+ err = kstrtoint(buf, 0, &val);
+ if (err)
+ return err;
+
+ if (val >= pcc->sinf[SINF_AC_MIN_BRIGHT] || val <= pcc->sinf[SINF_AC_MAX_BRIGHT]) {
+ err = acpi_pcc_write_sset(pcc, SINF_CUR_BRIGHT, val);
+ pcc->current_brightness = val;
+ }
+
+ return count;
+}
+
+static ssize_t cdpower_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", get_optd_power_state());
+}
+
+static ssize_t cdpower_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int err, val;
+
+ err = kstrtoint(buf, 10, &val);
+ if (err)
+ return err;
+ set_optd_power_state(val);
+ return count;
+}
+
+static DEVICE_ATTR_RO(numbatt);
+static DEVICE_ATTR_RO(lcdtype);
+static DEVICE_ATTR_RW(mute);
+static DEVICE_ATTR_RW(sticky_key);
+static DEVICE_ATTR_RW(eco_mode);
+static DEVICE_ATTR_RW(ac_brightness);
+static DEVICE_ATTR_RW(dc_brightness);
+static DEVICE_ATTR_RW(current_brightness);
+static DEVICE_ATTR_RW(brightness_level);
+static DEVICE_ATTR_RW(cdpower);
static struct attribute *pcc_sysfs_entries[] = {
&dev_attr_numbatt.attr,
&dev_attr_lcdtype.attr,
&dev_attr_mute.attr,
&dev_attr_sticky_key.attr,
+ &dev_attr_eco_mode.attr,
+ &dev_attr_ac_brightness.attr,
+ &dev_attr_dc_brightness.attr,
+ &dev_attr_current_brightness.attr,
+ &dev_attr_brightness_level.attr,
+ &dev_attr_cdpower.attr,
NULL,
};
@@ -442,8 +827,7 @@ static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY,
NULL, &result);
if (ACPI_FAILURE(rc)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "error getting hotkey status\n"));
+ pr_err("error getting hotkey status\n");
return;
}
@@ -456,10 +840,11 @@ static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
result & 0xf, 0x80, false);
}
- if (!sparse_keymap_report_event(hotk_input_dev,
- result & 0xf, result & 0x80, false))
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unknown hotkey event: %d\n", result));
+ if ((result & 0xf) == 0x7 || (result & 0xf) == 0x9 || (result & 0xf) == 0xa) {
+ if (!sparse_keymap_report_event(hotk_input_dev,
+ result & 0xf, result & 0x80, false))
+ pr_err("Unknown hotkey event: 0x%04llx\n", result);
+ }
}
static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event)
@@ -476,6 +861,50 @@ static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event)
}
}
+static void pcc_optd_notify(acpi_handle handle, u32 event, void *data)
+{
+ if (event != ACPI_NOTIFY_EJECT_REQUEST)
+ return;
+
+ set_optd_power_state(0);
+}
+
+static int pcc_register_optd_notifier(struct pcc_acpi *pcc, char *node)
+{
+ acpi_status status;
+ acpi_handle handle;
+
+ status = acpi_get_handle(NULL, node, &handle);
+
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_install_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ pcc_optd_notify, pcc);
+ if (ACPI_FAILURE(status))
+ pr_err("Failed to register notify on %s\n", node);
+ } else
+ return -ENODEV;
+
+ return 0;
+}
+
+static void pcc_unregister_optd_notifier(struct pcc_acpi *pcc, char *node)
+{
+ acpi_status status = AE_OK;
+ acpi_handle handle;
+
+ status = acpi_get_handle(NULL, node, &handle);
+
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_remove_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ pcc_optd_notify);
+ if (ACPI_FAILURE(status))
+ pr_err("Error removing optd notify handler %s\n",
+ node);
+ }
+}
+
static int acpi_pcc_init_input(struct pcc_acpi *pcc)
{
struct input_dev *input_dev;
@@ -494,15 +923,13 @@ static int acpi_pcc_init_input(struct pcc_acpi *pcc)
error = sparse_keymap_setup(input_dev, panasonic_keymap, NULL);
if (error) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to setup input device keymap\n"));
+ pr_err("Unable to setup input device keymap\n");
goto err_free_dev;
}
error = input_register_device(input_dev);
if (error) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to register input device\n"));
+ pr_err("Unable to register input device\n");
goto err_free_dev;
}
@@ -528,10 +955,14 @@ static int acpi_pcc_hotkey_resume(struct device *dev)
if (!pcc)
return -EINVAL;
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Sticky mode restore: %d\n",
- pcc->sticky_mode));
+ acpi_pcc_write_sset(pcc, SINF_MUTE, pcc->mute);
+ acpi_pcc_write_sset(pcc, SINF_ECO_MODE, pcc->eco_mode);
+ acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, pcc->sticky_key);
+ acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, pcc->ac_brightness);
+ acpi_pcc_write_sset(pcc, SINF_DC_CUR_BRIGHT, pcc->dc_brightness);
+ acpi_pcc_write_sset(pcc, SINF_CUR_BRIGHT, pcc->current_brightness);
- return acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, pcc->sticky_mode);
+ return 0;
}
#endif
@@ -547,14 +978,13 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
num_sifr = acpi_pcc_get_sqty(device);
if (num_sifr < 0 || num_sifr > 255) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr out of range"));
+ pr_err("num_sifr out of range");
return -ENODEV;
}
pcc = kzalloc(sizeof(struct pcc_acpi), GFP_KERNEL);
if (!pcc) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Couldn't allocate mem for pcc"));
+ pr_err("Couldn't allocate mem for pcc");
return -ENOMEM;
}
@@ -573,14 +1003,12 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
result = acpi_pcc_init_input(pcc);
if (result) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing keyinput handler\n"));
+ pr_err("Error installing keyinput handler\n");
goto out_sinf;
}
if (!acpi_pcc_retrieve_biosdata(pcc)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Couldn't retrieve BIOS data\n"));
+ pr_err("Couldn't retrieve BIOS data\n");
result = -EIO;
goto out_input;
}
@@ -598,16 +1026,42 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
/* read the initial brightness setting from the hardware */
pcc->backlight->props.brightness = pcc->sinf[SINF_AC_CUR_BRIGHT];
- /* read the initial sticky key mode from the hardware */
- pcc->sticky_mode = pcc->sinf[SINF_STICKY_KEY];
+ /* Reset initial sticky key mode since the hardware register state is not consistent */
+ acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, 0);
+ pcc->sticky_key = 0;
+
+ pcc->eco_mode = pcc->sinf[SINF_ECO_MODE];
+ pcc->mute = pcc->sinf[SINF_MUTE];
+ pcc->ac_brightness = pcc->sinf[SINF_AC_CUR_BRIGHT];
+ pcc->dc_brightness = pcc->sinf[SINF_DC_CUR_BRIGHT];
+ result = pcc->current_brightness = pcc->sinf[SINF_CUR_BRIGHT];
/* add sysfs attributes */
result = sysfs_create_group(&device->dev.kobj, &pcc_attr_group);
if (result)
goto out_backlight;
+ /* optical drive initialization */
+ if (ACPI_SUCCESS(check_optd_present())) {
+ pcc->platform = platform_device_register_simple("panasonic",
+ -1, NULL, 0);
+ if (IS_ERR(pcc->platform)) {
+ result = PTR_ERR(pcc->platform);
+ goto out_backlight;
+ }
+ result = device_create_file(&pcc->platform->dev,
+ &dev_attr_cdpower);
+ pcc_register_optd_notifier(pcc, "\\_SB.PCI0.EHCI.ERHB.OPTD");
+ if (result)
+ goto out_platform;
+ } else {
+ pcc->platform = NULL;
+ }
+
return 0;
+out_platform:
+ platform_device_unregister(pcc->platform);
out_backlight:
backlight_device_unregister(pcc->backlight);
out_input:
@@ -627,6 +1081,12 @@ static int acpi_pcc_hotkey_remove(struct acpi_device *device)
if (!device || !pcc)
return -EINVAL;
+ if (pcc->platform) {
+ device_remove_file(&pcc->platform->dev, &dev_attr_cdpower);
+ platform_device_unregister(pcc->platform);
+ }
+ pcc_unregister_optd_notifier(pcc, "\\_SB.PCI0.EHCI.ERHB.OPTD");
+
sysfs_remove_group(&device->dev.kobj, &pcc_attr_group);
backlight_device_unregister(pcc->backlight);
--
2.17.5
Signed-off-by: Kenneth Chan <kenneth.t.chan@xxxxxxxxx>
