diff options
| author | Ike Panhc <ike.pan@canonical.com> | 2010-10-01 11:39:29 +0400 |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2010-10-21 17:36:50 +0400 |
| commit | dfa7f6fe0ad7697ba43303bf37487987409b1b91 (patch) | |
| tree | 0541fae10b2e0c56fb8e6abc94ff29eeb89e799a /drivers | |
| parent | 6f8371c05e64138c305aa1b6a21857cd7a50e147 (diff) | |
| download | linux-dfa7f6fe0ad7697ba43303bf37487987409b1b91.tar.xz | |
ideapad: use return value of _CFG to tell if device exist or not
There are several bits of the return value of _CFG shows if RF/Camera devices
exist or not.
Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/ideapad_acpi.c | 44 |
1 files changed, 10 insertions, 34 deletions
diff --git a/drivers/platform/x86/ideapad_acpi.c b/drivers/platform/x86/ideapad_acpi.c index bf684f421290..1f736d143022 100644 --- a/drivers/platform/x86/ideapad_acpi.c +++ b/drivers/platform/x86/ideapad_acpi.c @@ -40,13 +40,14 @@ struct ideapad_private { static struct { char *name; + int cfgbit; int type; } ideapad_rfk_data[] = { - /* camera has no rfkill */ - { "ideapad_wlan", RFKILL_TYPE_WLAN }, - { "ideapad_bluetooth", RFKILL_TYPE_BLUETOOTH }, - { "ideapad_3g", RFKILL_TYPE_WWAN }, - { "ideapad_killsw", RFKILL_TYPE_WLAN } + { "ideapad_camera", 19, NUM_RFKILL_TYPES }, + { "ideapad_wlan", 18, RFKILL_TYPE_WLAN }, + { "ideapad_bluetooth", 16, RFKILL_TYPE_BLUETOOTH }, + { "ideapad_3g", 17, RFKILL_TYPE_WWAN }, + { "ideapad_killsw", 0, RFKILL_TYPE_WLAN } }; /* @@ -158,32 +159,6 @@ static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data) } /* the above is ACPI helpers */ -static int ideapad_dev_exists(int device) -{ - acpi_status status; - union acpi_object in_param; - struct acpi_object_list input = { 1, &in_param }; - struct acpi_buffer output; - union acpi_object out_obj; - - output.length = sizeof(out_obj); - output.pointer = &out_obj; - - in_param.type = ACPI_TYPE_INTEGER; - in_param.integer.value = device + 1; - - status = acpi_evaluate_object(NULL, "\\_SB_.DECN", &input, &output); - if (ACPI_FAILURE(status)) { - printk(KERN_WARNING "IdeaPAD \\_SB_.DECN method failed %d. Is this an IdeaPAD?\n", status); - return -ENODEV; - } - if (out_obj.type != ACPI_TYPE_INTEGER) { - printk(KERN_WARNING "IdeaPAD \\_SB_.DECN method returned unexpected type\n"); - return -ENODEV; - } - return out_obj.integer.value; -} - static int ideapad_dev_get_state(int device) { acpi_status status; @@ -334,9 +309,10 @@ static int ideapad_acpi_add(struct acpi_device *adevice) return -ENODEV; for (i = IDEAPAD_DEV_CAMERA; i < IDEAPAD_DEV_KILLSW; i++) { - devs_present[i] = ideapad_dev_exists(i); - if (devs_present[i] < 0) - return devs_present[i]; + if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg)) + devs_present[i] = 1; + else + devs_present[i] = 0; } /* The hardware switch is always present */ |