On Sun, Mar 29, 2015 at 07:25:39PM -0600, Azael Avalos wrote:
> This patch fixes the USB Sleep and Charge mode on certain models
> where the value returned by the BIOS is different, and thus, making
> this feature not to work for those models.
>
> Also, the "Typical" charging mode was added as a supported mode.
>
> Signed-off-by: Azael Avalos <coproscefalo@xxxxxxxxx>
> ---
> drivers/platform/x86/toshiba_acpi.c | 69 ++++++++++++++++++++++++++++++++-----
> 1 file changed, 60 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
> index 17a259e..c8ad61c 100644
> --- a/drivers/platform/x86/toshiba_acpi.c
> +++ b/drivers/platform/x86/toshiba_acpi.c
> @@ -150,9 +150,10 @@ MODULE_LICENSE("GPL");
> #define SCI_KBD_MODE_OFF 0x10
> #define SCI_KBD_TIME_MAX 0x3c001a
> #define SCI_USB_CHARGE_MODE_MASK 0xff
> -#define SCI_USB_CHARGE_DISABLED 0x30000
> -#define SCI_USB_CHARGE_ALTERNATE 0x30009
> -#define SCI_USB_CHARGE_AUTO 0x30021
> +#define SCI_USB_CHARGE_DISABLED 0x00
> +#define SCI_USB_CHARGE_ALTERNATE 0x09
> +#define SCI_USB_CHARGE_TYPICAL 0x11
> +#define SCI_USB_CHARGE_AUTO 0x21
> #define SCI_USB_CHARGE_BAT_MASK 0x7
> #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
> #define SCI_USB_CHARGE_BAT_LVL_ON 0x4
> @@ -177,6 +178,7 @@ struct toshiba_acpi_dev {
> int kbd_mode;
> int kbd_time;
> int usbsc_bat_level;
> + int usbsc_mode_base;
> int hotkey_event_type;
>
> unsigned int illumination_supported:1;
> @@ -800,6 +802,52 @@ static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
> }
>
> /* Sleep (Charge and Music) utilities support */
> +static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
> +{
> + u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
> + u32 out[TCI_WORDS];
> + acpi_status status;
> +
> + /* Set the feature to "not supported" in case of error */
> + dev->usb_sleep_charge_supported = 0;
> +
> + if (!sci_open(dev))
> + return;
> +
> + status = tci_raw(dev, in, out);
> + if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
> + pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
> + sci_close(dev);
> + return;
> + } else if (out[0] == TOS_NOT_SUPPORTED) {
> + pr_info("USB Sleep and Charge not supported\n");
> + sci_close(dev);
> + return;
> + }
Sorry Azael for not asking the first time, and maybe this is just how it is -
but it occurs to me that after the above tci_raw call, we check for 3 error
cases, but we never test for success. Can we not check for out[0] == TOS_SUCCESS
or similar? The above logic seems like the kind to lead to failure going
unnoticed as success is assumed and not confirmed.
> + dev->usbsc_mode_base = out[4];
> +
> + in[5] = SCI_USB_CHARGE_BAT_LVL;
> + status = tci_raw(dev, in, out);
> + if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
> + pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
> + sci_close(dev);
> + return;
> + } else if (out[0] == TOS_NOT_SUPPORTED) {
> + pr_info("USB Sleep and Charge not supported\n");
> + sci_close(dev);
> + return;
> + }
Here too.
--
Darren Hart
Intel Open Source Technology Center
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