tree bc812cc27e1800a1849cdebb97a6dc0bba5b8c93
parent 2865cf001878d22d5fd12e5215621dffbcad76dc
author Erik Waling <[EMAIL PROTECTED]> Wed, 07 Sep 2005 05:17:02 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Thu, 08 Sep 2005 06:57:24 -0700

[PATCH] sonypi SPIC initialisation fix

Newer Sony VAIO models (VGN-S480, VGN-S460, VGN-S3XP etc) use a new method to
initialize the SPIC device.  The new way to initialize (and disable) the
device comes directly from the AML code in the _CRS, _SRS and _DIS methods
from the DSDT table.  This patch adds support for the new models.

Signed-off-by: Erik Waling <[EMAIL PROTECTED]>
Signed-off-by: Stelian Pop <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>

 Documentation/sonypi.txt |   10 ++++
 drivers/char/sonypi.c    |  117 ++++++++++++++++++++++++++++++++++++++---------
 include/linux/sonypi.h   |    2 
 3 files changed, 109 insertions(+), 20 deletions(-)

diff --git a/Documentation/sonypi.txt b/Documentation/sonypi.txt
--- a/Documentation/sonypi.txt
+++ b/Documentation/sonypi.txt
@@ -99,6 +99,7 @@ statically linked into the kernel). Thos
                                SONYPI_MEYE_MASK                0x0400
                                SONYPI_MEMORYSTICK_MASK         0x0800
                                SONYPI_BATTERY_MASK             0x1000
+                               SONYPI_WIRELESS_MASK            0x2000
 
        useinput:       if set (which is the default) two input devices are
                        created, one which interprets the jogdial events as
@@ -137,6 +138,15 @@ Bugs:
          speed handling etc). Use ACPI instead of APM if it works on your
          laptop.
 
+       - sonypi lacks the ability to distinguish between certain key
+         events on some models.
+
+       - some models with the nvidia card (geforce go 6200 tc) uses a
+         different way to adjust the backlighting of the screen. There
+         is a userspace utility to adjust the brightness on those models,
+         which can be downloaded from
+         http://www.acc.umu.se/~erikw/program/smartdimmer-0.1.tar.bz2
+
        - since all development was done by reverse engineering, there is
          _absolutely no guarantee_ that this driver will not crash your
          laptop. Permanently.
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -98,12 +98,13 @@ MODULE_PARM_DESC(useinput,
 
 #define SONYPI_DEVICE_MODEL_TYPE1      1
 #define SONYPI_DEVICE_MODEL_TYPE2      2
+#define SONYPI_DEVICE_MODEL_TYPE3      3
 
 /* type1 models use those */
 #define SONYPI_IRQ_PORT                        0x8034
 #define SONYPI_IRQ_SHIFT               22
-#define SONYPI_BASE                    0x50
-#define SONYPI_G10A                    (SONYPI_BASE+0x14)
+#define SONYPI_TYPE1_BASE              0x50
+#define SONYPI_G10A                    (SONYPI_TYPE1_BASE+0x14)
 #define SONYPI_TYPE1_REGION_SIZE       0x08
 #define SONYPI_TYPE1_EVTYPE_OFFSET     0x04
 
@@ -114,6 +115,13 @@ MODULE_PARM_DESC(useinput,
 #define SONYPI_TYPE2_REGION_SIZE       0x20
 #define SONYPI_TYPE2_EVTYPE_OFFSET     0x12
 
+/* type3 series specifics */
+#define SONYPI_TYPE3_BASE              0x40
+#define SONYPI_TYPE3_GID2              (SONYPI_TYPE3_BASE+0x48) /* 16 bits */
+#define SONYPI_TYPE3_MISC              (SONYPI_TYPE3_BASE+0x6d) /* 8 bits  */
+#define SONYPI_TYPE3_REGION_SIZE       0x20
+#define SONYPI_TYPE3_EVTYPE_OFFSET     0x12
+
 /* battery / brightness addresses */
 #define SONYPI_BAT_FLAGS       0x81
 #define SONYPI_LCD_LIGHT       0x96
@@ -159,6 +167,10 @@ static struct sonypi_ioport_list sonypi_
        { 0x0, 0x0 }
 };
 
+/* same as in type 2 models */
+static struct sonypi_ioport_list *sonypi_type3_ioport_list =
+       sonypi_type2_ioport_list;
+
 /* The set of possible interrupts */
 struct sonypi_irq_list {
        u16     irq;
@@ -180,6 +192,9 @@ static struct sonypi_irq_list sonypi_typ
        {  0, 0x00 }    /* no IRQ, 0x00 in SIRQ in AML */
 };
 
+/* same as in type2 models */
+static struct sonypi_irq_list *sonypi_type3_irq_list = sonypi_type2_irq_list;
+
 #define SONYPI_CAMERA_BRIGHTNESS               0
 #define SONYPI_CAMERA_CONTRAST                 1
 #define SONYPI_CAMERA_HUE                      2
@@ -223,6 +238,7 @@ static struct sonypi_irq_list sonypi_typ
 #define SONYPI_MEYE_MASK                       0x00000400
 #define SONYPI_MEMORYSTICK_MASK                        0x00000800
 #define SONYPI_BATTERY_MASK                    0x00001000
+#define SONYPI_WIRELESS_MASK                   0x00002000
 
 struct sonypi_event {
        u8      data;
@@ -305,6 +321,13 @@ static struct sonypi_event sonypi_blueev
        { 0, 0 }
 };
 
+/* The set of possible wireless events */
+static struct sonypi_event sonypi_wlessev[] = {
+       { 0x59, SONYPI_EVENT_WIRELESS_ON },
+       { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
+       { 0, 0 }
+};
+
 /* The set of possible back button events */
 static struct sonypi_event sonypi_backev[] = {
        { 0x20, SONYPI_EVENT_BACK_PRESSED },
@@ -391,6 +414,12 @@ static struct sonypi_eventtypes {
        { SONYPI_DEVICE_MODEL_TYPE2, 0x41, SONYPI_BATTERY_MASK, 
sonypi_batteryev },
        { SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
 
+       { SONYPI_DEVICE_MODEL_TYPE3, 0, 0xffffffff, sonypi_releaseev },
+       { SONYPI_DEVICE_MODEL_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
+       { SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev 
},
+       { SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, 
sonypi_memorystickev },
+       { SONYPI_DEVICE_MODEL_TYPE3, 0x41, SONYPI_BATTERY_MASK, 
sonypi_batteryev },
+       { SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
        { 0 }
 };
 
@@ -563,6 +592,23 @@ static void sonypi_type2_srs(void)
        udelay(10);
 }
 
+static void sonypi_type3_srs(void)
+{
+       u16 v16;
+       u8  v8;
+
+       /* This model type uses the same initialiazation of
+        * the embedded controller as the type2 models. */
+       sonypi_type2_srs();
+
+       /* Initialization of PCI config space of the LPC interface bridge. */
+       v16 = (sonypi_device.ioport1 & 0xFFF0) | 0x01;
+       pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, v16);
+       pci_read_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, &v8);
+       v8 = (v8 & 0xCF) | 0x10;
+       pci_write_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, v8);
+}
+
 /* Disables the device - this comes from the AML code in the ACPI bios */
 static void sonypi_type1_dis(void)
 {
@@ -587,6 +633,13 @@ static void sonypi_type2_dis(void)
                printk(KERN_WARNING "ec_write failed\n");
 }
 
+static void sonypi_type3_dis(void)
+{
+       sonypi_type2_dis();
+       udelay(10);
+       pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, 0);
+}
+
 static u8 sonypi_call1(u8 dev)
 {
        u8 v1, v2;
@@ -1067,10 +1120,17 @@ static struct miscdevice sonypi_misc_dev
 
 static void sonypi_enable(unsigned int camera_on)
 {
-       if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
-               sonypi_type2_srs();
-       else
+       switch (sonypi_device.model) {
+       case SONYPI_DEVICE_MODEL_TYPE1:
                sonypi_type1_srs();
+               break;
+       case SONYPI_DEVICE_MODEL_TYPE2:
+               sonypi_type2_srs();
+               break;
+       case SONYPI_DEVICE_MODEL_TYPE3:
+               sonypi_type3_srs();
+               break;
+       }
 
        sonypi_call1(0x82);
        sonypi_call2(0x81, 0xff);
@@ -1094,10 +1154,18 @@ static int sonypi_disable(void)
        if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
                outb(0xf1, 0xb2);
 
-       if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2)
-               sonypi_type2_dis();
-       else
+       switch (sonypi_device.model) {
+       case SONYPI_DEVICE_MODEL_TYPE1:
                sonypi_type1_dis();
+               break;
+       case SONYPI_DEVICE_MODEL_TYPE2:
+               sonypi_type2_dis();
+               break;
+       case SONYPI_DEVICE_MODEL_TYPE3:
+               sonypi_type3_dis();
+               break;
+       }
+
        return 0;
 }
 
@@ -1143,12 +1211,16 @@ static int __devinit sonypi_probe(void)
        struct sonypi_irq_list *irq_list;
        struct pci_dev *pcidev;
 
-       pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
-                               PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
+       if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
+                                    PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
+               sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE1;
+       else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
+                                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
+               sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE3;
+       else
+               sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE2;
 
        sonypi_device.dev = pcidev;
-       sonypi_device.model = pcidev ?
-               SONYPI_DEVICE_MODEL_TYPE1 : SONYPI_DEVICE_MODEL_TYPE2;
 
        spin_lock_init(&sonypi_device.fifo_lock);
        sonypi_device.fifo = kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL,
@@ -1176,16 +1248,22 @@ static int __devinit sonypi_probe(void)
                goto out_miscreg;
        }
 
-       if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) {
+
+       if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) {
+               ioport_list = sonypi_type1_ioport_list;
+               sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE;
+               sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET;
+               irq_list = sonypi_type1_irq_list;
+       } else if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) {
                ioport_list = sonypi_type2_ioport_list;
                sonypi_device.region_size = SONYPI_TYPE2_REGION_SIZE;
                sonypi_device.evtype_offset = SONYPI_TYPE2_EVTYPE_OFFSET;
                irq_list = sonypi_type2_irq_list;
        } else {
-               ioport_list = sonypi_type1_ioport_list;
-               sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE;
-               sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET;
-               irq_list = sonypi_type1_irq_list;
+               ioport_list = sonypi_type3_ioport_list;
+               sonypi_device.region_size = SONYPI_TYPE3_REGION_SIZE;
+               sonypi_device.evtype_offset = SONYPI_TYPE3_EVTYPE_OFFSET;
+               irq_list = sonypi_type3_irq_list;
        }
 
        for (i = 0; ioport_list[i].port1; i++) {
@@ -1274,11 +1352,10 @@ static int __devinit sonypi_probe(void)
 
        printk(KERN_INFO "sonypi: Sony Programmable I/O Controller Driver"
               "v%s.\n", SONYPI_DRIVER_VERSION);
-       printk(KERN_INFO "sonypi: detected %s model, "
+       printk(KERN_INFO "sonypi: detected type%d model, "
               "verbose = %d, fnkeyinit = %s, camera = %s, "
               "compat = %s, mask = 0x%08lx, useinput = %s, acpi = %s\n",
-              (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) ?
-                       "type1" : "type2",
+              sonypi_device.model,
               verbose,
               fnkeyinit ? "on" : "off",
               camera ? "on" : "off",
diff --git a/include/linux/sonypi.h b/include/linux/sonypi.h
--- a/include/linux/sonypi.h
+++ b/include/linux/sonypi.h
@@ -99,6 +99,8 @@
 #define SONYPI_EVENT_BATTERY_INSERT            57
 #define SONYPI_EVENT_BATTERY_REMOVE            58
 #define SONYPI_EVENT_FNKEY_RELEASED            59
+#define SONYPI_EVENT_WIRELESS_ON               60
+#define SONYPI_EVENT_WIRELESS_OFF              61
 
 /* get/set brightness */
 #define SONYPI_IOCGBRT         _IOR('v', 0, __u8)
-
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