Re: [PATCH] Add bluetooth enabling support for toshiba_acpi

[Len Brown <lenb@kernel.org>]

unfortunately we don't permit additional API's under /proc
(and have not for a long time)
and the maitaining of this driver doesn't seem to be responding
on moving the existing ones to sysfs.

-Len

On Friday 14 September 2007 05:25, you wrote:
> Add interface to enable usb-bluetooth device in Toshiba notebook.
> 
> Index: linux-2.6.23-rc6/drivers/acpi/toshiba_acpi.c
> ===================================================================
> --- /usr/src/linux-2.6.23-rc6.orig/drivers/acpi/toshiba_acpi.c
> 2007-07-09 01:32:17.000000000 +0200
> +++ /usr/src/linux-2.6.23-rc6/drivers/acpi/toshiba_acpi.c
> 2007-09-13 23:43:53.818098802 +0200
> @@ -90,6 +90,10 @@
>  #define HCI_VIDEO_OUT                  0x001c
>  #define HCI_HOTKEY_EVENT               0x001e
>  #define HCI_LCD_BRIGHTNESS             0x002a
> +#define HCI_BT                         0x0056
> +#define HCI_BT_POWER                   0x0080
> +#define HCI_BT_ATTACH                  0x0040
> +
> 
>  /* field definitions */
>  #define HCI_LCD_BRIGHTNESS_BITS                3
> @@ -201,6 +205,17 @@
>         return status;
>  }
> 
> +
> +static acpi_status hci_write2(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(in, out);
> +       *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
> +       return status;
> +}
> +
> +
>  static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
>  {
>         u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
> @@ -211,6 +226,19 @@
>         return status;
>  }
> 
> + static acpi_status hci_read2(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(in, out);
> +     *out1 = out[2];
> +     *out2 = out[3];
> +     *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
> +     return status;
> + }
> +
> +
> +
>  static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
>  static struct backlight_device *toshiba_backlight_device;
>  static int force_fan;
> @@ -482,6 +510,54 @@
>         return count;
>  }
> 
> +
> +static char* read_bt(char* p)
> +{
> +    u32 hci_result;
> +       u32 value = 0;
> +    u32 value2 = 0x000;
> +       hci_read2(HCI_BT, &value, &value2, &hci_result);
> +    if (hci_result == HCI_SUCCESS) {
> +        p += sprintf(p,"present:                  %d\n", (value &
> 0x0f)?1:0);
> +    } else {
> +        p += sprintf(p, "ERROR\n");
> +    }
> +
> +    value = 0;
> +    value2 = 0x0001;
> +       hci_read2(HCI_BT, &value, &value2, &hci_result);
> +    if (hci_result == HCI_SUCCESS) {
> +        p += sprintf(p,"power:                    %d\n", (value & 128)
> >> 7);
> +        p += sprintf(p,"attach:                   %d\n", (value &  64)
> >> 6);
> +        p += sprintf(p,"wireless:                 %d\n", (value & 512)
> >> 9);
> +    } else {
> +        p += sprintf(p, "ERROR\n");
> +    }
> +
> +    return p;
> +}
> +
> +static unsigned long write_bt(const char* buffer, unsigned long count)
> +{
> +    int value;
> +    u32 hci_result;
> +
> +    if (sscanf(buffer, " power : %i", &value) == 1 && ( (value == 0) ||
> (value == 1) ) ) {
> +               hci_write2(HCI_BT, value, HCI_BT_POWER, &hci_result);
> +        if (hci_result != HCI_SUCCESS)
> +            return -EFAULT;
> +    } else if (sscanf(buffer, " attach : %i", &value) == 1 && ( (value
> == 0) || (value == 1) )) {
> +               hci_write2(HCI_BT, value, HCI_BT_ATTACH, &hci_result);
> +        if (hci_result != HCI_SUCCESS)
> +            return -EFAULT;
> +    } else {
> +        return -EINVAL;
> +    }
> +
> +    return count;
> +}
> +
> +
>  static char *read_version(char *p)
>  {
>         p += sprintf(p, "driver:                  %s\n",
> TOSHIBA_ACPI_VERSION);
> @@ -501,6 +577,7 @@
>         {"fan", read_fan, write_fan},
>         {"keys", read_keys, write_keys},
>         {"version", read_version, NULL},
> +       {"bluetooth", read_bt, write_bt },
>         {NULL}
>  };
> 
> 
> regards,
> Marek Hobler, 'neutrinus'
> -- GNU/Human
>