sony-laptop: refactor model types

Create mini drivers and allow callbacks for each model
to be specified.
Following patches will make use of this feature to handle
specific cases instead of just executing code and hope
not to break other models.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 104 insertions, 82 deletions

diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 7a32b355869b..a650f25d76c5 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -1194,18 +1194,33 @@ struct sony_pic_irq {
         struct list_head                list;
 };
 
+struct sonypi_eventtypes {
+        u8                      data;
+        unsigned long           mask;
+        struct sonypi_event     *events;
+};
+
+struct device_ctrl {
+        int                             model;
+        int                             (*handle_irq)(void);
+        u16                             evport_offset;
+        u8                              has_camera;
+        u8                              has_bluetooth;
+        u8                              has_wwan;
+        struct sonypi_eventtypes        *event_types;
+};
+
 struct sony_pic_dev {
-        int                     model;
-        u16                     evport_offset;
-        u8                      camera_power;
-        u8                      bluetooth_power;
-        u8                      wwan_power;
+        struct device_ctrl      *control;
         struct acpi_device      *acpi_dev;
         struct sony_pic_irq     *cur_irq;
         struct sony_pic_ioport  *cur_ioport;
         struct list_head        interrupts;
         struct list_head        ioports;
         struct mutex            lock;
+        u8                      camera_power;
+        u8                      bluetooth_power;
+        u8                      wwan_power;
 };
 
 static struct sony_pic_dev spic_dev = {
@@ -1370,74 +1385,92 @@ static struct sonypi_event sonypi_batteryev[] = {
         { 0, 0 }
 };
 
-static struct sonypi_eventtypes {
-        int                     model;
-        u8                      data;
-        unsigned long           mask;
-        struct sonypi_event *   events;
-} sony_pic_eventtypes[] = {
-        { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
-        { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
-        { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
-        { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
-        { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
-        { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
-        { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
-        { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
-        { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
-        { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
-
-        { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
-        { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
-        { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
-        { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
-        { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
-        { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
-        { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
-        { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
-        { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
-        { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
-        { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
-        { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
-        { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
-        { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
-
-        { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
-        { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
-        { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
-        { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
-        { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
-        { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
-        { 0 }
+static struct sonypi_eventtypes type1_events[] = {
+        { 0, 0xffffffff, sonypi_releaseev },
+        { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
+        { 0x30, SONYPI_LID_MASK, sonypi_lidev },
+        { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
+        { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
+        { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+        { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
+        { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
+        { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
+        { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
+        { 0 },
+};
+static struct sonypi_eventtypes type2_events[] = {
+        { 0, 0xffffffff, sonypi_releaseev },
+        { 0x38, SONYPI_LID_MASK, sonypi_lidev },
+        { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
+        { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
+        { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+        { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
+        { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
+        { 0x11, SONYPI_BACK_MASK, sonypi_backev },
+        { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
+        { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
+        { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
+        { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
+        { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
+        { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
+        { 0 },
+};
+static struct sonypi_eventtypes type3_events[] = {
+        { 0, 0xffffffff, sonypi_releaseev },
+        { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+        { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
+        { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
+        { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
+        { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
+        { 0 },
 };
 
-static int sony_pic_detect_device_type(void)
+static struct device_ctrl spic_types[] = {
+        {
+                .model = SONYPI_DEVICE_TYPE1,
+                .handle_irq = NULL,
+                .evport_offset = SONYPI_TYPE1_OFFSET,
+                .event_types = type1_events,
+        },
+        {
+                .model = SONYPI_DEVICE_TYPE2,
+                .handle_irq = NULL,
+                .evport_offset = SONYPI_TYPE2_OFFSET,
+                .event_types = type2_events,
+        },
+        {
+                .model = SONYPI_DEVICE_TYPE3,
+                .handle_irq = NULL,
+                .evport_offset = SONYPI_TYPE3_OFFSET,
+                .event_types = type3_events,
+        },
+};
+
+static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
 {
         struct pci_dev *pcidev;
-        int model = 0;
 
         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
-                model = SONYPI_DEVICE_TYPE1;
+                dev->control = &spic_types[0];
 
         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
-                model = SONYPI_DEVICE_TYPE3;
+                dev->control = &spic_types[2];
 
         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
-                model = SONYPI_DEVICE_TYPE3;
+                dev->control = &spic_types[2];
 
         else
-                model = SONYPI_DEVICE_TYPE2;
+                dev->control = &spic_types[1];
 
         if (pcidev)
                 pci_dev_put(pcidev);
 
         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
-                        model == SONYPI_DEVICE_TYPE1 ? 1 :
-                        model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
-        return model;
+                        dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
+                        dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
 }
 
 #define ITERATIONS_LONG         10000
@@ -2263,7 +2296,7 @@ static int sony_pic_enable(struct acpi_device *device,
         buffer.pointer = resource;
 
         /* setup Type 1 resources */
-        if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
+        if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
 
                 /* setup io resources */
                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
@@ -2345,39 +2378,42 @@ static irqreturn_t sony_pic_irq(int irq, void *dev_id)
         if (dev->cur_ioport->io2.minimum)
                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
         else
-                data_mask = inb_p(dev->cur_ioport->io1.minimum + dev->evport_offset);
+                data_mask = inb_p(dev->cur_ioport->io1.minimum +
+                                dev->control->evport_offset);
 
         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
-                        ev, data_mask, dev->cur_ioport->io1.minimum, dev->evport_offset);
+                        ev, data_mask, dev->cur_ioport->io1.minimum,
+                        dev->control->evport_offset);
 
         if (ev == 0x00 || ev == 0xff)
                 return IRQ_HANDLED;
 
-        for (i = 0; sony_pic_eventtypes[i].model; i++) {
+        for (i = 0; dev->control->event_types[i].mask; i++) {
 
-                if (spic_dev.model != sony_pic_eventtypes[i].model)
+                if ((data_mask & dev->control->event_types[i].data) !=
+                    dev->control->event_types[i].data)
                         continue;
 
-                if ((data_mask & sony_pic_eventtypes[i].data) !=
-                    sony_pic_eventtypes[i].data)
+                if (!(mask & dev->control->event_types[i].mask))
                         continue;
 
-                if (!(mask & sony_pic_eventtypes[i].mask))
-                        continue;
-
-                for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
-                        if (ev == sony_pic_eventtypes[i].events[j].data) {
+                for (j = 0; dev->control->event_types[i].events[j].event; j++) {
+                        if (ev == dev->control->event_types[i].events[j].data) {
                                 device_event =
-                                        sony_pic_eventtypes[i].events[j].event;
+                                        dev->control->
+                                                event_types[i].events[j].event;
                                 goto found;
                         }
                 }
         }
+        dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
+                        ev, data_mask, dev->cur_ioport->io1.minimum,
+                        dev->control->evport_offset);
         return IRQ_HANDLED;
 
 found:
         sony_laptop_report_input_event(device_event);
-        acpi_bus_generate_proc_event(spic_dev.acpi_dev, 1, device_event);
+        acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
         sonypi_compat_report_event(device_event);
 
         return IRQ_HANDLED;
@@ -2439,23 +2475,9 @@ static int sony_pic_add(struct acpi_device *device)
 
         spic_dev.acpi_dev = device;
         strcpy(acpi_device_class(device), "sony/hotkey");
-        spic_dev.model = sony_pic_detect_device_type();
+        sony_pic_detect_device_type(&spic_dev);
         mutex_init(&spic_dev.lock);
 
-        /* model specific characteristics */
-        switch(spic_dev.model) {
-                case SONYPI_DEVICE_TYPE1:
-                        spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
-                        break;
-                case SONYPI_DEVICE_TYPE3:
-                        spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
-                        break;
-                case SONYPI_DEVICE_TYPE2:
-                default:
-                        spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
-                        break;
-        }
-
         /* read _PRS resources */
         result = sony_pic_possible_resources(device);
         if (result) {