diff options
Diffstat (limited to 'drivers/char/xilinx_hwicap/xilinx_hwicap.h')
| -rw-r--r-- | drivers/char/xilinx_hwicap/xilinx_hwicap.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.h b/drivers/char/xilinx_hwicap/xilinx_hwicap.h index 405fee7e189b..1f9c8b082dbe 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.h +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.h @@ -65,10 +65,27 @@ struct hwicap_drvdata { }; struct hwicap_driver_config { + /* Read configuration data given by size into the data buffer. + Return 0 if successful. */ int (*get_configuration)(struct hwicap_drvdata *drvdata, u32 *data, u32 size); + /* Write configuration data given by size from the data buffer. + Return 0 if successful. */ int (*set_configuration)(struct hwicap_drvdata *drvdata, u32 *data, u32 size); + /* Get the status register, bit pattern given by: + * D8 - 0 = configuration error + * D7 - 1 = alignment found + * D6 - 1 = readback in progress + * D5 - 0 = abort in progress + * D4 - Always 1 + * D3 - Always 1 + * D2 - Always 1 + * D1 - Always 1 + * D0 - 1 = operation completed + */ + u32 (*get_status)(struct hwicap_drvdata *drvdata); + /* Reset the hw */ void (*reset)(struct hwicap_drvdata *drvdata); }; @@ -163,6 +180,13 @@ struct config_registers { /* Constant to use for CRC check when CRC has been disabled */ #define XHI_DISABLED_AUTO_CRC 0x0000DEFCUL +/* Meanings of the bits returned by get_status */ +#define XHI_SR_CFGERR_N_MASK 0x00000100 /* Config Error Mask */ +#define XHI_SR_DALIGN_MASK 0x00000080 /* Data Alignment Mask */ +#define XHI_SR_RIP_MASK 0x00000040 /* Read back Mask */ +#define XHI_SR_IN_ABORT_N_MASK 0x00000020 /* Select Map Abort Mask */ +#define XHI_SR_DONE_MASK 0x00000001 /* Done bit Mask */ + /** * hwicap_type_1_read - Generates a Type 1 read packet header. * @reg: is the address of the register to be read back. |