[PATCH] tpm: remove pci dependency

[safe/jmp/linux-2.6] / drivers / char / tpm / tpm_atmel.c

diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index 6897457..44b08ba 100644 (file)
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -22,8 +22,9 @@
 #include "tpm.h"
 
 /* Atmel definitions */
-enum tpm_atmel_addr{
-       TPM_ATML_BASE = 0x400
+enum tpm_atmel_addr {
+       TPM_ATMEL_BASE_ADDR_LO = 0x08,
+       TPM_ATMEL_BASE_ADDR_HI = 0x09
 };
 
 /* write status bits */
@@ -53,7 +54,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
        for (i = 0; i < 6; i++) {
                status = inb(chip->vendor->base + 1);
                if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-                       dev_err(&chip->pci_dev->dev,
+                       dev_err(chip->dev,
                                "error reading header\n");
                        return -EIO;
                }
@@ -65,12 +66,12 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
        size = be32_to_cpu(*native_size);
 
        if (count < size) {
-               dev_err(&chip->pci_dev->dev,
+               dev_err(chip->dev,
                        "Recv size(%d) less than available space\n", size);
                for (; i < size; i++) { /* clear the waiting data anyway */
                        status = inb(chip->vendor->base + 1);
                        if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-                               dev_err(&chip->pci_dev->dev,
+                               dev_err(chip->dev,
                                        "error reading data\n");
                                return -EIO;
                        }
@@ -82,7 +83,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
        for (; i < size; i++) {
                status = inb(chip->vendor->base + 1);
                if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
-                       dev_err(&chip->pci_dev->dev,
+                       dev_err(chip->dev,
                                "error reading data\n");
                        return -EIO;
                }
@@ -92,7 +93,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count)
        /* make sure data available is gone */
        status = inb(chip->vendor->base + 1);
        if (status & ATML_STATUS_DATA_AVAIL) {
-               dev_err(&chip->pci_dev->dev, "data available is stuck\n");
+               dev_err(chip->dev, "data available is stuck\n");
                return -EIO;
        }
 
@@ -103,9 +104,9 @@ static int tpm_atml_send(struct tpm_chip *chip, u8 * buf, size_t count)
 {
        int i;
 
-       dev_dbg(&chip->pci_dev->dev, "tpm_atml_send: ");
+       dev_dbg(chip->dev, "tpm_atml_send:\n");
        for (i = 0; i < count; i++) {
-               dev_dbg(&chip->pci_dev->dev, "0x%x(%d) ", buf[i], buf[i]);
+               dev_dbg(chip->dev, "%d 0x%x(%d)\n",  i, buf[i], buf[i]);
                outb(buf[i], chip->vendor->base);
        }
 
@@ -117,6 +118,11 @@ static void tpm_atml_cancel(struct tpm_chip *chip)
        outb(ATML_STATUS_ABORT, chip->vendor->base + 1);
 }
 
+static u8 tpm_atml_status(struct tpm_chip *chip)
+{
+       return inb(chip->vendor->base + 1);
+}
+
 static struct file_operations atmel_ops = {
        .owner = THIS_MODULE,
        .llseek = no_llseek,
@@ -145,10 +151,10 @@ static struct tpm_vendor_specific tpm_atmel = {
        .recv = tpm_atml_recv,
        .send = tpm_atml_send,
        .cancel = tpm_atml_cancel,
+       .status = tpm_atml_status,
        .req_complete_mask = ATML_STATUS_BUSY | ATML_STATUS_DATA_AVAIL,
        .req_complete_val = ATML_STATUS_DATA_AVAIL,
        .req_canceled = ATML_STATUS_READY,
-       .base = TPM_ATML_BASE,
        .attr_group = &atmel_attr_grp,
        .miscdev = { .fops = &atmel_ops, },
 };
@@ -158,34 +164,36 @@ static int __devinit tpm_atml_init(struct pci_dev *pci_dev,
 {
        u8 version[4];
        int rc = 0;
+       int lo, hi;
 
        if (pci_enable_device(pci_dev))
                return -EIO;
 
-       if (tpm_lpc_bus_init(pci_dev, TPM_ATML_BASE)) {
-               rc = -ENODEV;
-               goto out_err;
-       }
+       lo = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_LO);
+       hi = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_HI);
+
+       tpm_atmel.base = (hi<<8)|lo;
+       dev_dbg( &pci_dev->dev, "Operating with base: 0x%x\n", tpm_atmel.base);
 
        /* verify that it is an Atmel part */
-       if (tpm_read_index(4) != 'A' || tpm_read_index(5) != 'T'
-           || tpm_read_index(6) != 'M' || tpm_read_index(7) != 'L') {
+       if (tpm_read_index(TPM_ADDR, 4) != 'A' || tpm_read_index(TPM_ADDR, 5) != 'T'
+           || tpm_read_index(TPM_ADDR, 6) != 'M' || tpm_read_index(TPM_ADDR, 7) != 'L') {
                rc = -ENODEV;
                goto out_err;
        }
 
        /* query chip for its version number */
-       if ((version[0] = tpm_read_index(0x00)) != 0xFF) {
-               version[1] = tpm_read_index(0x01);
-               version[2] = tpm_read_index(0x02);
-               version[3] = tpm_read_index(0x03);
+       if ((version[0] = tpm_read_index(TPM_ADDR, 0x00)) != 0xFF) {
+               version[1] = tpm_read_index(TPM_ADDR, 0x01);
+               version[2] = tpm_read_index(TPM_ADDR, 0x02);
+               version[3] = tpm_read_index(TPM_ADDR, 0x03);
        } else {
                dev_info(&pci_dev->dev, "version query failed\n");
                rc = -ENODEV;
                goto out_err;
        }
 
-       if ((rc = tpm_register_hardware(pci_dev, &tpm_atmel)) < 0)
+       if ((rc = tpm_register_hardware(&pci_dev->dev, &tpm_atmel)) < 0)
                goto out_err;
 
        dev_info(&pci_dev->dev,
@@ -198,13 +206,25 @@ out_err:
        return rc;
 }
 
+static void __devexit tpm_atml_remove(struct pci_dev *pci_dev)
+{
+       struct tpm_chip *chip = pci_get_drvdata(pci_dev);
+
+       if ( chip )
+               tpm_remove_hardware(chip->dev);
+}
+
 static struct pci_device_id tpm_pci_tbl[] __devinitdata = {
        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0)},
        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12)},
        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0)},
        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12)},
        {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0)},
+       {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0)},
+       {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1)},
+       {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0)},
        {PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_LPC)},
+       {PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6LPC)},
        {0,}
 };
 
@@ -214,7 +234,7 @@ static struct pci_driver atmel_pci_driver = {
        .name = "tpm_atmel",
        .id_table = tpm_pci_tbl,
        .probe = tpm_atml_init,
-       .remove = __devexit_p(tpm_remove),
+       .remove = __devexit_p(tpm_atml_remove),
        .suspend = tpm_pm_suspend,
        .resume = tpm_pm_resume,
 };