diff options
Diffstat (limited to 'drivers/char/ipmi/kcs_bmc.h')
| -rw-r--r-- | drivers/char/ipmi/kcs_bmc.h | 92 |
1 files changed, 15 insertions, 77 deletions
diff --git a/drivers/char/ipmi/kcs_bmc.h b/drivers/char/ipmi/kcs_bmc.h index eb9ea4ce78b8..fa408b802c79 100644 --- a/drivers/char/ipmi/kcs_bmc.h +++ b/drivers/char/ipmi/kcs_bmc.h @@ -6,54 +6,14 @@ #ifndef __KCS_BMC_H__ #define __KCS_BMC_H__ -#include <linux/miscdevice.h> +#include <linux/list.h> -/* Different phases of the KCS BMC module. - * KCS_PHASE_IDLE: - * BMC should not be expecting nor sending any data. - * KCS_PHASE_WRITE_START: - * BMC is receiving a WRITE_START command from system software. - * KCS_PHASE_WRITE_DATA: - * BMC is receiving a data byte from system software. - * KCS_PHASE_WRITE_END_CMD: - * BMC is waiting a last data byte from system software. - * KCS_PHASE_WRITE_DONE: - * BMC has received the whole request from system software. - * KCS_PHASE_WAIT_READ: - * BMC is waiting the response from the upper IPMI service. - * KCS_PHASE_READ: - * BMC is transferring the response to system software. - * KCS_PHASE_ABORT_ERROR1: - * BMC is waiting error status request from system software. - * KCS_PHASE_ABORT_ERROR2: - * BMC is waiting for idle status afer error from system software. - * KCS_PHASE_ERROR: - * BMC has detected a protocol violation at the interface level. - */ -enum kcs_phases { - KCS_PHASE_IDLE, - - KCS_PHASE_WRITE_START, - KCS_PHASE_WRITE_DATA, - KCS_PHASE_WRITE_END_CMD, - KCS_PHASE_WRITE_DONE, +#define KCS_BMC_EVENT_TYPE_OBE BIT(0) +#define KCS_BMC_EVENT_TYPE_IBF BIT(1) - KCS_PHASE_WAIT_READ, - KCS_PHASE_READ, - - KCS_PHASE_ABORT_ERROR1, - KCS_PHASE_ABORT_ERROR2, - KCS_PHASE_ERROR -}; - -/* IPMI 2.0 - Table 9-4, KCS Interface Status Codes */ -enum kcs_errors { - KCS_NO_ERROR = 0x00, - KCS_ABORTED_BY_COMMAND = 0x01, - KCS_ILLEGAL_CONTROL_CODE = 0x02, - KCS_LENGTH_ERROR = 0x06, - KCS_UNSPECIFIED_ERROR = 0xFF -}; +#define KCS_BMC_STR_OBF BIT(0) +#define KCS_BMC_STR_IBF BIT(1) +#define KCS_BMC_STR_CMD_DAT BIT(3) /* IPMI 2.0 - 9.5, KCS Interface Registers * @idr: Input Data Register @@ -66,43 +26,21 @@ struct kcs_ioreg { u32 str; }; -struct kcs_bmc { - spinlock_t lock; +struct kcs_bmc_device_ops; +struct kcs_bmc_client; +struct kcs_bmc_device { + struct list_head entry; + + struct device *dev; u32 channel; - int running; - /* Setup by BMC KCS controller driver */ struct kcs_ioreg ioreg; - u8 (*io_inputb)(struct kcs_bmc *kcs_bmc, u32 reg); - void (*io_outputb)(struct kcs_bmc *kcs_bmc, u32 reg, u8 b); - - enum kcs_phases phase; - enum kcs_errors error; - - wait_queue_head_t queue; - bool data_in_avail; - int data_in_idx; - u8 *data_in; - - int data_out_idx; - int data_out_len; - u8 *data_out; - struct mutex mutex; - u8 *kbuffer; + const struct kcs_bmc_device_ops *ops; - struct miscdevice miscdev; - - unsigned long priv[]; + spinlock_t lock; + struct kcs_bmc_client *client; }; -static inline void *kcs_bmc_priv(struct kcs_bmc *kcs_bmc) -{ - return kcs_bmc->priv; -} - -int kcs_bmc_handle_event(struct kcs_bmc *kcs_bmc); -struct kcs_bmc *kcs_bmc_alloc(struct device *dev, int sizeof_priv, - u32 channel); #endif /* __KCS_BMC_H__ */ |