1 files changed, 311 insertions, 0 deletions

diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c
index ec94ecdb103d..bbcfc8ec35a1 100644
--- a/drivers/net/irda/smsc-ircc2.c
+++ b/drivers/net/irda/smsc-ircc2.c
@@ -11,6 +11,7 @@
  *     Copyright (c) 2002      Daniele Peri
  *     All Rights Reserved.
  *     Copyright (c) 2002      Jean Tourrilhes
+ *     Copyright (c) 2006      Linus Walleij
  *
  *
  * Based on smc-ircc.c:
@@ -61,6 +62,9 @@
 
 #include <linux/spinlock.h>
 #include <linux/pm.h>
+#ifdef CONFIG_PCI
+#include <linux/pci.h>
+#endif
 
 #include <net/irda/wrapper.h>
 #include <net/irda/irda.h>
@@ -100,6 +104,22 @@ MODULE_PARM_DESC(ircc_transceiver, "Transceiver type");
 
 /* Types */
 
+#ifdef CONFIG_PCI
+struct smsc_ircc_subsystem_configuration {
+        unsigned short vendor; /* PCI vendor ID */
+        unsigned short device; /* PCI vendor ID */
+        unsigned short subvendor; /* PCI subsystem vendor ID */
+        unsigned short subdevice; /* PCI sybsystem device ID */
+        unsigned short sir_io; /* I/O port for SIR */
+        unsigned short fir_io; /* I/O port for FIR */
+        unsigned char  fir_irq; /* FIR IRQ */
+        unsigned char  fir_dma; /* FIR DMA */
+        unsigned short cfg_base; /* I/O port for chip configuration */
+        int (*preconfigure)(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf); /* Preconfig function */
+        const char *name;       /* name shown as info */
+};
+#endif
+
 struct smsc_transceiver {
         char *name;
         void (*set_for_speed)(int fir_base, u32 speed);
@@ -202,6 +222,16 @@ static int __init smsc_superio_flat(const struct smsc_chip *chips, unsigned shor
 static int __init smsc_superio_paged(const struct smsc_chip *chips, unsigned short cfg_base, char *type);
 static int __init smsc_superio_fdc(unsigned short cfg_base);
 static int __init smsc_superio_lpc(unsigned short cfg_base);
+#ifdef CONFIG_PCI
+static int __init preconfigure_smsc_chip(struct smsc_ircc_subsystem_configuration *conf);
+static int __init preconfigure_through_82801(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
+static int __init preconfigure_through_ali(struct pci_dev *dev, struct smsc_ircc_subsystem_configuration *conf);
+static int __init smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
+                                                    unsigned short ircc_fir,
+                                                    unsigned short ircc_sir,
+                                                    unsigned char ircc_dma,
+                                                    unsigned char ircc_irq);
+#endif
 
 /* Transceivers specific functions */
 
@@ -353,6 +383,13 @@ static int __init smsc_ircc_init(void)
                 return ret;
         }
 
+#ifdef CONFIG_PCI
+        if (smsc_ircc_preconfigure_subsystems(ircc_cfg, ircc_fir, ircc_sir, ircc_dma, ircc_irq) < 0) {
+                /* Ignore errors from preconfiguration */
+                IRDA_ERROR("%s, Preconfiguration failed !\n", driver_name);
+        }
+#endif
+
         dev_count = 0;
 
         if (ircc_fir > 0 && ircc_sir > 0) {
@@ -2285,6 +2322,280 @@ static int __init smsc_superio_lpc(unsigned short cfg_base)
         return ret;
 }
 
+/*
+ * Look for some specific subsystem setups that need
+ * pre-configuration not properly done by the BIOS (especially laptops)
+ * This code is based in part on smcinit.c, tosh1800-smcinit.c
+ * and tosh2450-smcinit.c. The table lists the device entries
+ * for ISA bridges with an LPC (Local Peripheral Configurator)
+ * that are in turn used to configure the SMSC device with default
+ * SIR and FIR I/O ports, DMA and IRQ.
+ */
+#ifdef CONFIG_PCI
+#define PCIID_VENDOR_INTEL 0x8086
+#define PCIID_VENDOR_ALI 0x10b9
+static struct smsc_ircc_subsystem_configuration subsystem_configurations[] __devinitdata = {
+        {
+                .vendor = PCIID_VENDOR_INTEL, /* Intel 82801DBM LPC bridge */
+                .device = 0x24cc,
+                .subvendor = 0x103c,
+                .subdevice = 0x088c,
+                .sir_io = 0x02f8, /* Quite certain these are the same for nc8000 as for nc6000 */
+                .fir_io = 0x0130,
+                .fir_irq = 0x09,
+                .fir_dma = 0x03,
+                .cfg_base = 0x004e,
+                .preconfigure = preconfigure_through_82801,
+                .name = "HP nc8000",
+        },
+        {
+                .vendor = PCIID_VENDOR_INTEL, /* Intel 82801DBM LPC bridge */
+                .device = 0x24cc,
+                .subvendor = 0x103c,
+                .subdevice = 0x0890,
+                .sir_io = 0x02f8,
+                .fir_io = 0x0130,
+                .fir_irq = 0x09,
+                .fir_dma = 0x03,
+                .cfg_base = 0x004e,
+                .preconfigure = preconfigure_through_82801,
+                .name = "HP nc6000",
+        },
+        {
+                .vendor = PCIID_VENDOR_INTEL, /* Intel 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge */
+                .device = 0x24c0,
+                .subvendor = 0x1179,
+                .subdevice = 0xffff, /* 0xffff is "any", Not sure, 0x0001 or 0x0002 */
+                .sir_io = 0x03f8,
+                .fir_io = 0x0130,
+                .fir_irq = 0x07,
+                .fir_dma = 0x01,
+                .cfg_base = 0x002e,
+                .preconfigure = preconfigure_through_82801,
+                .name = "Toshiba Satellite 2450",
+        },
+        {
+                .vendor = PCIID_VENDOR_INTEL, /* Intel 82801CAM ISA bridge */
+                .device = 0x248c, /* Some use 24cc? */
+                .subvendor = 0x1179,
+                .subdevice = 0xffff, /* 0xffff is "any", Not sure, 0x0001 or 0x0002 */
+                .sir_io = 0x03f8,
+                .fir_io = 0x0130,
+                .fir_irq = 0x03,
+                .fir_dma = 0x03,
+                .cfg_base = 0x002e,
+                .preconfigure = preconfigure_through_82801,
+                .name = "Toshiba Satellite 5100/5200, Tecra 9100",
+        },
+        {
+                .vendor = PCIID_VENDOR_ALI, /* ALi M1533/M1535 PCI to ISA Bridge [Aladdin IV/V/V+] */
+                .device = 0x1533,
+                .subvendor = 0x1179,
+                .subdevice = 0xffff, /* 0xffff is "any", Not sure, 0x0001 or 0x0002 */
+                .sir_io = 0x02e8,
+                .fir_io = 0x02f8,
+                .fir_irq = 0x07,
+                .fir_dma = 0x03,
+                .cfg_base = 0x002e,
+                .preconfigure = preconfigure_through_ali,
+                .name = "Toshiba Satellite 1800",
+        },
+        { } // Terminator
+};
+
+
+/*
+ * This sets up the basic SMSC parameters (FIR port, SIR port, FIR DMA, FIR IRQ)
+ * through the chip configuration port.
+ */
+static int __init preconfigure_smsc_chip(struct smsc_ircc_subsystem_configuration *conf)
+{
+        unsigned short iobase = conf->cfg_base;
+        unsigned char tmpbyte;
+
+        outb(LPC47N227_CFGACCESSKEY, iobase); // enter configuration state
+        outb(SMSCSIOFLAT_DEVICEID_REG, iobase); // set for device ID
+        tmpbyte = inb(iobase +1); // Read device ID
+        IRDA_DEBUG(0, "Detected Chip id: 0x%02x, setting up registers...\n",tmpbyte);
+
+        /* Disable UART1 and set up SIR I/O port */
+        outb(0x24, iobase);  // select CR24 - UART1 base addr
+        outb(0x00, iobase + 1); // disable UART1
+        outb(SMSCSIOFLAT_UART2BASEADDR_REG, iobase);  // select CR25 - UART2 base addr
+        outb( (conf->sir_io >> 2), iobase + 1); // bits 2-9 of 0x3f8
+        tmpbyte = inb(iobase + 1);
+        if (tmpbyte != (conf->sir_io >> 2) ) {
+                IRDA_WARNING("ERROR: could not configure SIR ioport.\n");
+                return -ENXIO;
+        }
+
+        /* Set up FIR IRQ channel for UART2 */
+        outb(SMSCSIOFLAT_UARTIRQSELECT_REG, iobase); // select CR28 - UART1,2 IRQ select
+        tmpbyte = inb(iobase + 1);
+        tmpbyte &= SMSCSIOFLAT_UART1IRQSELECT_MASK; // Do not touch the UART1 portion
+        tmpbyte |= (conf->fir_irq & SMSCSIOFLAT_UART2IRQSELECT_MASK);
+        outb(tmpbyte, iobase + 1);
+        tmpbyte = inb(iobase + 1) & SMSCSIOFLAT_UART2IRQSELECT_MASK;
+        if (tmpbyte != conf->fir_irq) {
+                IRDA_WARNING("ERROR: could not configure FIR IRQ channel.\n");
+                return -ENXIO;
+        }
+
+        /* Set up FIR I/O port */
+        outb(SMSCSIOFLAT_FIRBASEADDR_REG, iobase);  // CR2B - SCE (FIR) base addr
+        outb((conf->fir_io >> 3), iobase + 1);
+        tmpbyte = inb(iobase + 1);
+        if (tmpbyte != (conf->fir_io >> 3) ) {
+                IRDA_WARNING("ERROR: could not configure FIR I/O port.\n");
+                return -ENXIO;
+        }
+
+        /* Set up FIR DMA channel */
+        outb(SMSCSIOFLAT_FIRDMASELECT_REG, iobase);  // CR2C - SCE (FIR) DMA select
+        outb((conf->fir_dma & LPC47N227_FIRDMASELECT_MASK), iobase + 1); // DMA
+        tmpbyte = inb(iobase + 1) & LPC47N227_FIRDMASELECT_MASK;
+        if (tmpbyte != (conf->fir_dma & LPC47N227_FIRDMASELECT_MASK)) {
+                IRDA_WARNING("ERROR: could not configure FIR DMA channel.\n");
+                return -ENXIO;
+        }
+
+        outb(SMSCSIOFLAT_UARTMODE0C_REG, iobase);  // CR0C - UART mode
+        tmpbyte = inb(iobase + 1);
+        tmpbyte &= ~SMSCSIOFLAT_UART2MODE_MASK | SMSCSIOFLAT_UART2MODE_VAL_IRDA;
+        outb(tmpbyte, iobase + 1); // enable IrDA (HPSIR) mode, high speed
+
+        outb(LPC47N227_APMBOOTDRIVE_REG, iobase);  // CR07 - Auto Pwr Mgt/boot drive sel
+        tmpbyte = inb(iobase + 1);
+        outb(tmpbyte | LPC47N227_UART2AUTOPWRDOWN_MASK, iobase + 1); // enable UART2 autopower down
+
+        /* This one was not part of tosh1800 */
+        outb(0x0a, iobase);  // CR0a - ecp fifo / ir mux
+        tmpbyte = inb(iobase + 1);
+        outb(tmpbyte | 0x40, iobase + 1); // send active device to ir port
+
+        outb(LPC47N227_UART12POWER_REG, iobase);  // CR02 - UART 1,2 power
+        tmpbyte = inb(iobase + 1);
+        outb(tmpbyte | LPC47N227_UART2POWERDOWN_MASK, iobase + 1); // UART2 power up mode, UART1 power down
+
+        outb(LPC47N227_FDCPOWERVALIDCONF_REG, iobase);  // CR00 - FDC Power/valid config cycle
+        tmpbyte = inb(iobase + 1);
+        outb(tmpbyte | LPC47N227_VALID_MASK, iobase + 1); // valid config cycle done
+
+        outb(LPC47N227_CFGEXITKEY, iobase);  // Exit configuration
+
+        return 0;
+}
+
+/* 82801CAM registers */
+#define VID 0x00
+#define DID 0x02
+#define PIRQA_ROUT 0x60
+#define PCI_DMA_C 0x90
+#define COM_DEC 0xe0
+#define LPC_EN 0xe6
+#define GEN2_DEC 0xec
+/*
+ * Sets up the I/O range using the 82801CAM ISA bridge, 82801DBM LPC bridge or
+ * Intel 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge. They all work the same way!
+ */
+static int __init preconfigure_through_82801(struct pci_dev *dev,
+                                  struct smsc_ircc_subsystem_configuration *conf)
+{
+        unsigned short tmpword;
+        int ret;
+
+        IRDA_MESSAGE("Setting up the SMSC device via the 82801 controller.\n");
+        pci_write_config_byte(dev, COM_DEC, 0x10);
+
+        /* Enable LPC */
+        pci_read_config_word(dev, LPC_EN, &tmpword); /* LPC_EN register */
+        tmpword &= 0xfffd; /* mask bit 1 */
+        tmpword |= 0x0001; /* set bit 0 : COMA addr range enable */
+        pci_write_config_word(dev, LPC_EN, tmpword);
+
+        /* Setup DMA */
+        pci_write_config_word(dev, PCI_DMA_C, 0xc0c0); /* LPC I/F DMA on, channel 3  -- rtm (?? PCI DMA ?) */
+        pci_write_config_word(dev, GEN2_DEC, 0x131); /* LPC I/F 2nd decode range */
+
+        /* Pre-configure chip */
+        ret = preconfigure_smsc_chip(conf);
+
+        /* Disable LPC */
+        pci_read_config_word(dev, LPC_EN, &tmpword); /* LPC_EN register */
+        tmpword &= 0xfffc; /* mask bit 1 and bit 0, COMA addr range disable */
+        pci_write_config_word(dev, LPC_EN, tmpword);
+        return ret;
+}
+
+static int __init preconfigure_through_ali(struct pci_dev *dev,
+                                  struct smsc_ircc_subsystem_configuration *conf)
+{
+        /* TODO: put in ALi 1533 configuration here. */
+        IRDA_MESSAGE("SORRY: %s has an unsupported bridge controller (ALi): not pre-configured.\n", conf->name);
+        return -ENODEV;
+}
+
+static int __init smsc_ircc_preconfigure_subsystems(unsigned short ircc_cfg,
+                                                    unsigned short ircc_fir,
+                                                    unsigned short ircc_sir,
+                                                    unsigned char ircc_dma,
+                                                    unsigned char ircc_irq)
+{
+        struct pci_dev *dev = NULL;
+        unsigned short ss_vendor = 0x0000;
+        unsigned short ss_device = 0x0000;
+        int ret = 0;
+
+        dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
+
+        while (dev != NULL) {
+                struct smsc_ircc_subsystem_configuration *conf;
+
+                /*
+                 * Cache the subsystem vendor/device: some manufacturers fail to set
+                 * this for all components, so we save it in case there is just
+                 * 0x0000 0x0000 on the device we want to check.
+                 */
+                if (dev->subsystem_vendor != 0x0000U) {
+                        ss_vendor = dev->subsystem_vendor;
+                        ss_device = dev->subsystem_device;
+                }
+                conf = subsystem_configurations;
+                for( ; conf->subvendor; conf++) {
+                        if(conf->vendor == dev->vendor &&
+                           conf->device == dev->device &&
+                           conf->subvendor == ss_vendor && /* Sometimes these are cached values */
+                           (conf->subdevice == ss_device || conf->subdevice == 0xffff)) {
+                                struct smsc_ircc_subsystem_configuration tmpconf;
+
+                                memcpy(&tmpconf, conf, sizeof(struct smsc_ircc_subsystem_configuration));
+
+                                /* Override the default values with anything passed in as parameter */
+                                if (ircc_cfg != 0)
+                                        tmpconf.cfg_base = ircc_cfg;
+                                if (ircc_fir != 0)
+                                        tmpconf.fir_io = ircc_fir;
+                                if (ircc_sir != 0)
+                                        tmpconf.sir_io = ircc_sir;
+                                if (ircc_dma != 0xff)
+                                        tmpconf.fir_dma = ircc_dma;
+                                if (ircc_irq != 0xff)
+                                        tmpconf.fir_irq = ircc_irq;
+
+                                IRDA_MESSAGE("Detected unconfigured %s SMSC IrDA chip, pre-configuring device.\n", conf->name);
+                                if (conf->preconfigure)
+                                        ret = conf->preconfigure(dev, &tmpconf);
+                                else
+                                        ret = -ENODEV;
+                        }
+                }
+                dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
+        }
+
+        return ret;
+}
+#endif // CONFIG_PCI
+
 /************************************************
  *
  * Transceivers specific functions