sony-laptop: support rfkill via ACPI interfaces

Message ID	20090322180321.GA10401@srcf.ucam.org (mailing list archive)
State	Superseded, archived
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n2MI3SVj028522 for <patchwork-acpi@patchwork.kernel.org>; Sun, 22 Mar 2009 18:03:28 GMT Date: Sun, 22 Mar 2009 18:03:21 +0000 From: Matthew Garrett <mjg59@srcf.ucam.org> To: Matthias Welwarsky <matze@welwarsky.de> Cc: linux-acpi@vger.kernel.org Subject: Re: [PATCH] sony-laptop: support rfkill via ACPI interfaces Message-ID: <20090322180321.GA10401@srcf.ucam.org> References: <20090320003208.GC19755@gamma.logic.tuwien.ac.at> <20090320011837.GA23183@gamma.logic.tuwien.ac.at> <200903211222.36642.matze@welwarsky.de> <200903211453.49039.matze@welwarsky.de> <20090322175609.GA10304@srcf.ucam.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090322175609.GA10304@srcf.ucam.org> User-Agent: Mutt/1.5.12-2006-07-14 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 537959d..2486832 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -64,6 +64,7 @@ #include <asm/uaccess.h> #include <linux/sonypi.h> #include <linux/sony-laptop.h> +#include <linux/rfkill.h> #ifdef CONFIG_SONYPI_COMPAT #include <linux/poll.h> #include <linux/miscdevice.h> @@ -123,6 +124,11 @@ MODULE_PARM_DESC(minor, "default is -1 (automatic)"); #endif +static struct rfkill *sony_wifi_rfkill; +static struct rfkill *sony_bluetooth_rfkill; +static struct rfkill *sony_wwan_rfkill; +static struct rfkill *sony_wimax_rfkill; + /*********** Input Devices ***********/ #define SONY_LAPTOP_BUF_SIZE 128 @@ -134,6 +140,7 @@ struct sony_laptop_input_s { spinlock_t fifo_lock; struct workqueue_struct *wq; }; + static struct sony_laptop_input_s sony_laptop_input = { .users = ATOMIC_INIT(0), }; @@ -689,6 +696,31 @@ static int acpi_callsetfunc(acpi_handle handle, char *name, int value, return -1; } +static int sony_find_snc_handle(int handle) +{ + int i; + int result; + + for (i=0x20; i<0x30; i++) { + acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result); + if (result == handle) + return i-0x20; + } + + return -1; +} + +static int sony_call_snc_handle(int handle, int argument, int *result) +{ + int offset = sony_find_snc_handle(handle); + + if (offset < 0) + return -1; + + return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument, + result); +} + /* * sony_nc_values input/output validate functions */ @@ -809,32 +841,6 @@ struct sony_nc_event { u8 event; }; -static struct sony_nc_event *sony_nc_events; - -/* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence - * for Fn keys - */ -static int sony_nc_C_enable(const struct dmi_system_id *id) -{ - int result = 0; - - printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident); - - sony_nc_events = id->driver_data; - - if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0 - || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0 - || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0 - || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0 - || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0 - || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) { - printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some " - "functionalities may be missing\n"); - return 1; - } - return 0; -} - static struct sony_nc_event sony_C_events[] = { { 0x81, SONYPI_EVENT_FNKEY_F1 }, { 0x01, SONYPI_EVENT_FNKEY_RELEASED }, @@ -851,57 +857,17 @@ static struct sony_nc_event sony_C_events[] = { { 0, 0 }, }; -/* SNC-only model map */ -static const struct dmi_system_id sony_nc_ids[] = { - { - .ident = "Sony Vaio FE Series", - .callback = sony_nc_C_enable, - .driver_data = sony_C_events, - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), - DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"), - }, - }, - { - .ident = "Sony Vaio FZ Series", - .callback = sony_nc_C_enable, - .driver_data = sony_C_events, - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), - DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"), - }, - }, - { - .ident = "Sony Vaio C Series", - .callback = sony_nc_C_enable, - .driver_data = sony_C_events, - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), - DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"), - }, - }, - { - .ident = "Sony Vaio N Series", - .callback = sony_nc_C_enable, - .driver_data = sony_C_events, - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), - DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"), - }, - }, - { } -}; - /* * ACPI callbacks */ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) { - struct sony_nc_event *evmap; + int i; u32 ev = event; int result; - if (ev == 0x92) { + if (ev == 0x92 || ev == 0x93) { + int origev = ev; /* read the key pressed from EC.GECR * A call to SN07 with 0x0202 will do it as well respecting * the current protocol on different OSes @@ -913,20 +879,23 @@ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) * TODO: we may want to do the same for the older GHKE -need * dmi list- so this snippet may become one more callback. */ - if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0) + if (sony_call_snc_handle(0x100, 0x200, &result)) dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev); else ev = result & 0xFF; - } - if (sony_nc_events) - for (evmap = sony_nc_events; evmap->event; evmap++) { - if (evmap->data == ev) { - ev = evmap->event; + for (i=0; sony_C_events[i].data; i++) { + if (sony_C_events[i].data == ev) { + ev = sony_C_events[i].event; break; } } + if (!sony_C_events[i].data) + printk(KERN_INFO DRV_PFX "Unknown event: %x %x\n", + origev, ev); + } + dprintk("sony_acpi_notify, event: 0x%.2x\n", ev); sony_laptop_report_input_event(ev); acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev); @@ -953,9 +922,24 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level, /* * ACPI device */ +static int sony_nc_function_setup(struct acpi_device *device) { + int result; + + /* Enable all events */ + acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result); + + /* Setup hotkeys */ + sony_call_snc_handle(0x0100, 0, &result); + sony_call_snc_handle(0x0101, 0, &result); + sony_call_snc_handle(0x0102, 0x100, &result); + + return 0; +} + static int sony_nc_resume(struct acpi_device *device) { struct sony_nc_value *item; + acpi_handle handle; for (item = sony_nc_values; item->name; item++) { int ret; @@ -970,13 +954,156 @@ static int sony_nc_resume(struct acpi_device *device) } } + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON", + &handle))) { + if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL)) + dprintk("ECON Method failed\n"); + } + + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00", + &handle))) { + dprintk("Doing SNC setup\n"); + sony_nc_function_setup(device); + } + /* set the last requested brightness level */ if (sony_backlight_device && !sony_backlight_update_status(sony_backlight_device)) printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n"); - /* re-initialize models with specific requirements */ - dmi_check_system(sony_nc_ids); + return 0; +} + +static void sony_nc_rfkill_cleanup(void) +{ + if (sony_wifi_rfkill) + rfkill_unregister(sony_wifi_rfkill); + if (sony_bluetooth_rfkill) + rfkill_unregister(sony_bluetooth_rfkill); + if (sony_wwan_rfkill) + rfkill_unregister(sony_wwan_rfkill); + if (sony_wimax_rfkill) + rfkill_unregister(sony_wimax_rfkill); +} + +static int sony_nc_rfkill_get(void *data, enum rfkill_state *state) +{ + int result; + + sony_call_snc_handle(0x124, (long) data, &result); + if (result & 0xf) + *state = RFKILL_STATE_UNBLOCKED; + else + *state = RFKILL_STATE_SOFT_BLOCKED; + return 0; +} + +static int sony_nc_rfkill_set(void *data, enum rfkill_state state) +{ + int result; + int argument = (long) data + 1; + + if (state == RFKILL_STATE_UNBLOCKED) + argument |= 0xff0000; + + return sony_call_snc_handle(0x124, argument, &result); +} + +static int sony_nc_setup_wifi_rfkill(struct acpi_device *device) +{ + int err = 0; + + sony_wifi_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WLAN); + if (!sony_wifi_rfkill) + return -1; + sony_wifi_rfkill->name = "sony-wifi"; + sony_wifi_rfkill->toggle_radio = sony_nc_rfkill_set; + sony_wifi_rfkill->get_state = sony_nc_rfkill_get; + sony_wifi_rfkill->user_claim_unsupported = 1; + sony_wifi_rfkill->data = (void *)0x300; + err = rfkill_register(sony_wifi_rfkill); + if (err) + rfkill_free(sony_wifi_rfkill); + return err; +} + +static int sony_nc_setup_bluetooth_rfkill(struct acpi_device *device) +{ + int err = 0; + + sony_bluetooth_rfkill = rfkill_allocate(&device->dev, + RFKILL_TYPE_BLUETOOTH); + if (!sony_bluetooth_rfkill) + return -1; + sony_bluetooth_rfkill->name = "sony-bluetooth"; + sony_bluetooth_rfkill->toggle_radio = sony_nc_rfkill_set; + sony_bluetooth_rfkill->get_state = sony_nc_rfkill_get; + sony_bluetooth_rfkill->user_claim_unsupported = 1; + sony_bluetooth_rfkill->data = (void *)0x500; + err = rfkill_register(sony_bluetooth_rfkill); + if (err) + rfkill_free(sony_bluetooth_rfkill); + return err; +} + +static int sony_nc_setup_wwan_rfkill(struct acpi_device *device) +{ + int err = 0; + + sony_wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WWAN); + if (!sony_wwan_rfkill) + return -1; + sony_wwan_rfkill->name = "sony-wwan"; + sony_wwan_rfkill->toggle_radio = sony_nc_rfkill_set; + sony_wwan_rfkill->get_state = sony_nc_rfkill_get; + sony_wwan_rfkill->user_claim_unsupported = 1; + sony_wwan_rfkill->data = (void *)0x700; + err = rfkill_register(sony_wwan_rfkill); + if (err) + rfkill_free(sony_wwan_rfkill); + return err; +} + +static int sony_nc_setup_wimax_rfkill(struct acpi_device *device) +{ + int err = 0; + + sony_wimax_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WIMAX); + if (!sony_wimax_rfkill) + return -1; + sony_wimax_rfkill->name = "sony-wimax"; + sony_wimax_rfkill->toggle_radio = sony_nc_rfkill_set; + sony_wimax_rfkill->get_state = sony_nc_rfkill_get; + sony_wimax_rfkill->user_claim_unsupported = 1; + sony_wimax_rfkill->data = (void *)0x900; + err = rfkill_register(sony_wimax_rfkill); + if (err) + rfkill_free(sony_wimax_rfkill); + return err; +} + +static int sony_nc_rfkill_setup(struct acpi_device *device) +{ + int result, ret; + + if (sony_find_snc_handle(0x124) == -1) + return -1; + + ret = sony_call_snc_handle(0x124, 0xb00, &result); + if (ret) { + printk(KERN_INFO DRV_PFX + "Unable to enumerate rfkill devices: %x\n", ret); + return ret; + } + + if (result & 0x1) + sony_nc_setup_wifi_rfkill(device); + if (result & 0x2) + sony_nc_setup_bluetooth_rfkill(device); + if (result & 0x1c) + sony_nc_setup_wwan_rfkill(device); + if (result & 0x20) + sony_nc_setup_wimax_rfkill(device); return 0; } @@ -1024,6 +1151,19 @@ static int sony_nc_add(struct acpi_device *device) dprintk("_INI Method failed\n"); } + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON", + &handle))) { + if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL)) + dprintk("ECON Method failed\n"); + } + + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00", + &handle))) { + dprintk("Doing SNC setup\n"); + sony_nc_function_setup(device); + sony_nc_rfkill_setup(device); + } + /* setup input devices and helper fifo */ result = sony_laptop_setup_input(device); if (result) { @@ -1063,9 +1203,6 @@ static int sony_nc_add(struct acpi_device *device) } - /* initialize models with specific requirements */ - dmi_check_system(sony_nc_ids); - result = sony_pf_add(); if (result) goto outbacklight; @@ -1131,6 +1268,7 @@ static int sony_nc_add(struct acpi_device *device) sony_laptop_remove_input(); outwalk: + sony_nc_rfkill_cleanup(); return result; } @@ -1156,6 +1294,7 @@ static int sony_nc_remove(struct acpi_device *device, int type) sony_pf_remove(); sony_laptop_remove_input(); + sony_nc_rfkill_cleanup(); dprintk(SONY_NC_DRIVER_NAME " removed.\n"); return 0;

sony-laptop: support rfkill via ACPI interfaces

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