This patch introduces some rfkill improvements in terms of both code
cleaning and support extension. More precisely:
- removed any handle autodetection inside the setup function as it's now
provided by the caller
- rfkill type now persistent, using the hardware capability of storing
the wireless devices power state
- added support for newer WWAN modules
- removed some global variables now included in a few struct for a
cleaner code. These structs have been placed close to the rfkill
functions for better readability
- minor code improvements
Signed-off-by: Marco Chiappero <marco@xxxxxxxxxx>
---
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -141,19 +141,6 @@ MODULE_PARM_DESC(kbd_backlight_timeout,
"(default: 0)");
-enum sony_nc_rfkill {
- SONY_WIFI,
- SONY_BLUETOOTH,
- SONY_WWAN,
- SONY_WIMAX,
- N_SONY_RFKILL,
-};
-
-static unsigned int sony_rfkill_handle;
-static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
-static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700,
0x900};
-static void sony_nc_rfkill_update(void);
-
/*********** Input Devices ***********/
#define SONY_LAPTOP_BUF_SIZE 128
@@ -1204,30 +1191,51 @@ static int sony_nc_hotkeys_decode(unsign
return ret;
}
+enum sony_nc_rfkill {
+ SONY_WIFI,
+ SONY_BLUETOOTH,
+ SONY_WWAN,
+ SONY_WIMAX,
+ N_SONY_RFKILL,
+};
+struct snc_rfkill_data {
+ unsigned int handle;
+ struct rfkill *devices[N_SONY_RFKILL];
+ const unsigned int address[N_SONY_RFKILL];
+};
+static struct snc_rfkill_data snc_rfkill = {
+ 0, {NULL}, {0x300, 0x500, 0x700, 0x900}
+};
+
static void sony_nc_rfkill_cleanup(void)
{
int i;
for (i = 0; i < N_SONY_RFKILL; i++) {
- if (sony_rfkill_devices[i]) {
- rfkill_unregister(sony_rfkill_devices[i]);
- rfkill_destroy(sony_rfkill_devices[i]);
+ if (snc_rfkill.devices[i]) {
+ rfkill_unregister(snc_rfkill.devices[i]);
+ rfkill_destroy(snc_rfkill.devices[i]);
}
}
}
static int sony_nc_rfkill_set(void *data, bool blocked)
{
- unsigned int result;
- unsigned int argument = sony_rfkill_address[(long) data] + 0x100;
+ unsigned int result, argument = snc_rfkill.address[(long) data];
+ /* do not force an already set state */
+ sony_call_snc_handle(snc_rfkill.handle, argument, &result);
+ if ((result & 0x1) == !blocked)
+ return 0;
+
+ argument += 0x100;
if (!blocked)
argument |= 0xff0000;
- return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
+ return sony_call_snc_handle(snc_rfkill.handle, argument, &result);
}
-static const struct rfkill_ops sony_rfkill_ops = {
+static const struct rfkill_ops snc_rfkill_ops = {
.set_block = sony_nc_rfkill_set,
};
@@ -1239,7 +1247,7 @@ static int sony_nc_setup_rfkill(struct a
enum rfkill_type type;
const char *name;
unsigned int result;
- bool hwblock;
+ bool hwblock, swblock;
switch (nc_type) {
case SONY_WIFI:
@@ -1263,12 +1271,19 @@ static int sony_nc_setup_rfkill(struct a
}
rfk = rfkill_alloc(name, &device->dev, type,
- &sony_rfkill_ops, (void *)nc_type);
+ &snc_rfkill_ops, (void *)nc_type);
if (!rfk)
return -ENOMEM;
- sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
+ sony_call_snc_handle(snc_rfkill.handle, 0x200, &result);
hwblock = !(result & 0x1);
+
+ result = 0;
+ sony_call_snc_handle(snc_rfkill.handle, snc_rfkill.address[nc_type],
+ &result);
+ swblock = !(result & 0x2);
+
+ rfkill_init_sw_state(rfk, swblock);
rfkill_set_hw_state(rfk, hwblock);
err = rfkill_register(rfk);
@@ -1276,7 +1291,7 @@ static int sony_nc_setup_rfkill(struct a
rfkill_destroy(rfk);
return err;
}
- sony_rfkill_devices[nc_type] = rfk;
+ snc_rfkill.devices[nc_type] = rfk;
return err;
}
@@ -1284,51 +1299,35 @@ static void sony_nc_rfkill_update(void)
{
enum sony_nc_rfkill i;
unsigned int result;
- bool hwblock;
+ bool hwblock, swblock;
- sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
+ sony_call_snc_handle(snc_rfkill.handle, 0x200, &result);
hwblock = !(result & 0x1);
for (i = 0; i < N_SONY_RFKILL; i++) {
- unsigned int argument = sony_rfkill_address[i];
+ unsigned int argument = snc_rfkill.address[i];
- if (!sony_rfkill_devices[i])
+ if (!snc_rfkill.devices[i])
continue;
- if (hwblock) {
- if (rfkill_set_hw_state(sony_rfkill_devices[i], true))
- /* we already know we're blocked */ ;
-
- continue;
- }
+ sony_call_snc_handle(snc_rfkill.handle, argument, &result);
+ swblock = !(result & 0x2);
- sony_call_snc_handle(sony_rfkill_handle, argument, &result);
- rfkill_set_states(sony_rfkill_devices[i],
- !(result & 0xf), false);
+ rfkill_set_states(snc_rfkill.devices[i], swblock, hwblock);
}
}
-static int sony_nc_rfkill_setup(struct acpi_device *device)
+static int sony_nc_rfkill_setup(struct acpi_device *device, unsigned
int handle)
{
#define RFKILL_BUFF_SIZE 8
u8 dev_code, i, buff[RFKILL_BUFF_SIZE] = { 0 };
- int offset;
- offset = sony_find_snc_handle(0x124);
- if (offset == -1) {
- offset = sony_find_snc_handle(0x135);
- if (offset == -1)
- return 0;
- else
- sony_rfkill_handle = 0x135;
- } else
- sony_rfkill_handle = 0x124;
- dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
+ snc_rfkill.handle = handle;
/* need to read the whole buffer returned by the acpi call to SN06
* here otherwise we may miss some features
*/
- if (sony_call_snc_handle_buffer(sony_rfkill_handle, 0x000,
+ if (sony_call_snc_handle_buffer(snc_rfkill.handle, 0x000,
buff, RFKILL_BUFF_SIZE) < 0)
return -EIO;
@@ -1341,19 +1340,38 @@ static int sony_nc_rfkill_setup(struct a
if (dev_code == 0xff)
break;
+ /*
+ known codes:
+
+ 0x00 WLAN
+ 0x10 BLUETOOTH
+ 0x20 WWAN GPRS-EDGE
+ 0x21 WWAN HSDPA
+ 0x22 WWAN EV-DO
+ 0x23 WWAN GPS
+ 0x25 Gobi WWAN no GPS
+ 0x26 Gobi WWAN + GPS
+ 0x28 Gobi WWAN no GPS
+ 0x29 Gobi WWAN + GPS
+ 0x50 Gobi WWAN no GPS
+ 0x51 Gobi WWAN + GPS
+ 0x30 WIMAX
+ 0x70 no SIM card slot
+ 0x71 SIM card slot
+ */
dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
- if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
+ if (dev_code == 0 && !snc_rfkill.devices[SONY_WIFI])
sony_nc_setup_rfkill(device, SONY_WIFI);
- if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
+ if (dev_code == 0x10 && !snc_rfkill.devices[SONY_BLUETOOTH])
sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
- if ((0xf0 & dev_code) == 0x20 &&
- !sony_rfkill_devices[SONY_WWAN])
+ if (((0xf0 & dev_code) == 0x20 || (0xf0 & dev_code) == 0x50) &&
+ !snc_rfkill.devices[SONY_WWAN])
sony_nc_setup_rfkill(device, SONY_WWAN);
- if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
+ if (dev_code == 0x30 && !snc_rfkill.devices[SONY_WIMAX])
sony_nc_setup_rfkill(device, SONY_WIMAX);
}
@@ -1717,7 +1735,7 @@ static int sony_nc_handles_setup(struct
ret = sony_nc_kbd_backlight_setup(pd, handle);
case 0x0124:
case 0x0135:
- ret = sony_nc_rfkill_setup(sony_nc_acpi_device);
+ ret = sony_nc_rfkill_setup(sony_nc_acpi_device, handle);
break;
default:
continue;
--
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