diff options
| -rw-r--r-- | drivers/char/tpm/tpm.c | 52 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm.h | 11 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_atmel.c | 21 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_nsc.c | 54 |
4 files changed, 87 insertions, 51 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index c937ea2..7da4fe9 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -28,19 +28,35 @@ #include <linux/spinlock.h> #include "tpm.h" -#define TPM_MINOR 224 /* officially assigned */ +enum tpm_const { + TPM_MINOR = 224, /* officially assigned */ + TPM_BUFSIZE = 2048, + TPM_NUM_DEVICES = 256, + TPM_NUM_MASK_ENTRIES = TPM_NUM_DEVICES / (8 * sizeof(int)) +}; -#define TPM_BUFSIZE 2048 + /* PCI configuration addresses */ +enum tpm_pci_config_addr { + PCI_GEN_PMCON_1 = 0xA0, + PCI_GEN1_DEC = 0xE4, + PCI_LPC_EN = 0xE6, + PCI_GEN2_DEC = 0xEC +}; + +enum tpm_config { + TPM_LOCK_REG = 0x0D, + TPM_INTERUPT_REG = 0x0A, + TPM_BASE_ADDR_LO = 0x08, + TPM_BASE_ADDR_HI = 0x09, + TPM_UNLOCK_VALUE = 0x55, + TPM_LOCK_VALUE = 0xAA, + TPM_DISABLE_INTERUPT_VALUE = 0x00 +}; -/* PCI configuration addresses */ -#define PCI_GEN_PMCON_1 0xA0 -#define PCI_GEN1_DEC 0xE4 -#define PCI_LPC_EN 0xE6 -#define PCI_GEN2_DEC 0xEC static LIST_HEAD(tpm_chip_list); static DEFINE_SPINLOCK(driver_lock); -static int dev_mask[32]; +static int dev_mask[TPM_NUM_MASK_ENTRIES]; static void user_reader_timeout(unsigned long ptr) { @@ -102,17 +118,18 @@ int tpm_lpc_bus_init(struct pci_dev *pci_dev, u16 base) pci_write_config_dword(pci_dev, PCI_GEN_PMCON_1, tmp); } - tpm_write_index(0x0D, 0x55); /* unlock 4F */ - tpm_write_index(0x0A, 0x00); /* int disable */ - tpm_write_index(0x08, base); /* base addr lo */ - tpm_write_index(0x09, (base & 0xFF00) >> 8); /* base addr hi */ - tpm_write_index(0x0D, 0xAA); /* lock 4F */ break; case PCI_VENDOR_ID_AMD: /* nothing yet */ break; } + tpm_write_index(TPM_LOCK_REG, TPM_UNLOCK_VALUE); + tpm_write_index(TPM_INTERUPT_REG, TPM_DISABLE_INTERUPT_VALUE); + tpm_write_index(TPM_BASE_ADDR_LO, base); + tpm_write_index(TPM_BASE_ADDR_HI, (base & 0xFF00) >> 8); + tpm_write_index(TPM_LOCK_REG, TPM_LOCK_VALUE); + return 0; } @@ -527,7 +544,7 @@ void __devexit tpm_remove(struct pci_dev *pci_dev) pci_disable_device(pci_dev); - dev_mask[chip->dev_num / 32] &= !(1 << (chip->dev_num % 32)); + dev_mask[chip->dev_num / TPM_NUM_MASK_ENTRIES ] &= !(1 << (chip->dev_num % TPM_NUM_MASK_ENTRIES)); kfree(chip); @@ -608,10 +625,11 @@ int tpm_register_hardware(struct pci_dev *pci_dev, chip->dev_num = -1; - for (i = 0; i < 32; i++) - for (j = 0; j < 8; j++) + for (i = 0; i < TPM_NUM_MASK_ENTRIES; i++) + for (j = 0; j < 8 * sizeof(int); j++) if ((dev_mask[i] & (1 << j)) == 0) { - chip->dev_num = i * 32 + j; + chip->dev_num = + i * TPM_NUM_MASK_ENTRIES + j; dev_mask[i] |= 1 << j; goto dev_num_search_complete; } diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 3c4ee43..1a94a8c3 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -25,11 +25,16 @@ #include <linux/fs.h> #include <linux/miscdevice.h> -#define TPM_TIMEOUT 5 /* msecs */ +enum tpm_timeout { + TPM_TIMEOUT = 5, /* msecs */ +}; /* TPM addresses */ -#define TPM_ADDR 0x4E -#define TPM_DATA 0x4F +enum tpm_addr { + TPM_ADDR = 0x4E, + TPM_DATA = 0x4F +}; + struct tpm_chip; diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c index f9333e7..3271391 100644 --- a/drivers/char/tpm/tpm_atmel.c +++ b/drivers/char/tpm/tpm_atmel.c @@ -22,17 +22,22 @@ #include "tpm.h" /* Atmel definitions */ -#define TPM_ATML_BASE 0x400 +enum tpm_atmel_addr{ + TPM_ATML_BASE = 0x400 +}; /* write status bits */ -#define ATML_STATUS_ABORT 0x01 -#define ATML_STATUS_LASTBYTE 0x04 - +enum tpm_atmel_write_status { + ATML_STATUS_ABORT = 0x01, + ATML_STATUS_LASTBYTE = 0x04 +}; /* read status bits */ -#define ATML_STATUS_BUSY 0x01 -#define ATML_STATUS_DATA_AVAIL 0x02 -#define ATML_STATUS_REWRITE 0x04 - +enum tpm_atmel_read_status { + ATML_STATUS_BUSY = 0x01, + ATML_STATUS_DATA_AVAIL = 0x02, + ATML_STATUS_REWRITE = 0x04, + ATML_STATUS_READY = 0x08 +}; static int tpm_atml_recv(struct tpm_chip *chip, u8 * buf, size_t count) { diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c index 6e5ffca..24832ab 100644 --- a/drivers/char/tpm/tpm_nsc.c +++ b/drivers/char/tpm/tpm_nsc.c @@ -22,34 +22,42 @@ #include "tpm.h" /* National definitions */ -#define TPM_NSC_BASE 0x360 -#define TPM_NSC_IRQ 0x07 +enum tpm_nsc_addr { + TPM_NSC_BASE = 0x360, + TPM_NSC_IRQ = 0x07 +}; -#define NSC_LDN_INDEX 0x07 -#define NSC_SID_INDEX 0x20 -#define NSC_LDC_INDEX 0x30 -#define NSC_DIO_INDEX 0x60 -#define NSC_CIO_INDEX 0x62 -#define NSC_IRQ_INDEX 0x70 -#define NSC_ITS_INDEX 0x71 +enum tpm_nsc_index { + NSC_LDN_INDEX = 0x07, + NSC_SID_INDEX = 0x20, + NSC_LDC_INDEX = 0x30, + NSC_DIO_INDEX = 0x60, + NSC_CIO_INDEX = 0x62, + NSC_IRQ_INDEX = 0x70, + NSC_ITS_INDEX = 0x71 +}; -#define NSC_STATUS 0x01 -#define NSC_COMMAND 0x01 -#define NSC_DATA 0x00 +enum tpm_nsc_status_loc { + NSC_STATUS = 0x01, + NSC_COMMAND = 0x01, + NSC_DATA = 0x00 +}; /* status bits */ -#define NSC_STATUS_OBF 0x01 /* output buffer full */ -#define NSC_STATUS_IBF 0x02 /* input buffer full */ -#define NSC_STATUS_F0 0x04 /* F0 */ -#define NSC_STATUS_A2 0x08 /* A2 */ -#define NSC_STATUS_RDY 0x10 /* ready to receive command */ -#define NSC_STATUS_IBR 0x20 /* ready to receive data */ - +enum tpm_nsc_status{ + NSC_STATUS_OBF = 0x01, /* output buffer full */ + NSC_STATUS_IBF = 0x02, /* input buffer full */ + NSC_STATUS_F0 = 0x04, /* F0 */ + NSC_STATUS_A2 = 0x08, /* A2 */ + NSC_STATUS_RDY = 0x10, /* ready to receive command */ + NSC_STATUS_IBR = 0x20 /* ready to receive data */ +}; /* command bits */ -#define NSC_COMMAND_NORMAL 0x01 /* normal mode */ -#define NSC_COMMAND_EOC 0x03 -#define NSC_COMMAND_CANCEL 0x22 - +enum tpm_nsc_cmd_mode { + NSC_COMMAND_NORMAL = 0x01, /* normal mode */ + NSC_COMMAND_EOC = 0x03, + NSC_COMMAND_CANCEL = 0x22 +}; /* * Wait for a certain status to appear */ |
