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Annotation of previous_trunk/src/includes/esp.h, revision 1.1

1.1     ! root        1: /* ESP DMA control and status registers */
        !             2: 
        !             3: struct {
        !             4:     Uint8 control;
        !             5:     Uint8 status;
        !             6: } esp_dma;
        !             7: 
        !             8: #define ESPCTRL_CLKMASK     0xc0    /* clock selection bits */
        !             9: #define ESPCTRL_CLK10MHz    0x00
        !            10: #define ESPCTRL_CLK12MHz    0x40
        !            11: #define ESPCTRL_CLK16MHz    0xc0
        !            12: #define ESPCTRL_CLK20MHz    0x80
        !            13: #define ESPCTRL_ENABLE_INT  0x20    /* enable ESP interrupt */
        !            14: #define ESPCTRL_MODE_DMA    0x10    /* select mode: 1 = dma, 0 = pio */
        !            15: #define ESPCTRL_DMA_READ    0x08    /* select direction: 1 = scsi>mem, 0 = mem>scsi */
        !            16: #define ESPCTRL_FLUSH       0x04    /* flush DMA buffer */
        !            17: #define ESPCTRL_RESET       0x02    /* hard reset ESP */
        !            18: #define ESPCTRL_CHIP_TYPE   0x01    /* select chip type: 1 = WD33C92, 0 = NCR53C90(A) */
        !            19: 
        !            20: #define ESPSTAT_STATE_MASK  0xc0
        !            21: #define ESPSTAT_STATE_D0S0  0x00    /* DMA ready   for buffer 0, SCSI in buffer 0 */
        !            22: #define ESPSTAT_STATE_D0S1  0x40    /* DMA request for buffer 0, SCSI in buffer 1 */
        !            23: #define ESPSTAT_STATE_D1S1  0x80    /* DMA ready   for buffer 1, SCSI in buffer 1 */
        !            24: #define ESPSTAT_STATE_D1S0  0xc0    /* DMA request for buffer 1, SCSI in buffer 0 */
        !            25: #define ESPSTAT_OUTFIFO_MSK 0x38    /* output fifo byte (inverted) */
        !            26: #define ESPSTAT_INFIFO_MSK  0x07    /* input fifo byte (inverted) */
        !            27: 
        !            28: 
        !            29: void ESP_DMA_CTRL_Read(void);
        !            30: void ESP_DMA_CTRL_Write(void);
        !            31: void ESP_DMA_FIFO_STAT_Read(void);
        !            32: void ESP_DMA_FIFO_STAT_Write(void);
        !            33: 
        !            34: void ESP_DMA_set_status(void);
        !            35: 
        !            36: 
        !            37: 
        !            38: void ESP_TransCountL_Read(void); 
        !            39: void ESP_TransCountL_Write(void); 
        !            40: void ESP_TransCountH_Read(void);
        !            41: void ESP_TransCountH_Write(void); 
        !            42: void ESP_FIFO_Read(void);
        !            43: void ESP_FIFO_Write(void); 
        !            44: void ESP_Command_Read(void); 
        !            45: void ESP_Command_Write(void); 
        !            46: void ESP_Status_Read(void);
        !            47: void ESP_SelectBusID_Write(void); 
        !            48: void ESP_IntStatus_Read(void);
        !            49: void ESP_SelectTimeout_Write(void); 
        !            50: void ESP_SeqStep_Read(void);
        !            51: void ESP_SyncPeriod_Write(void); 
        !            52: void ESP_FIFOflags_Read(void);
        !            53: void ESP_SyncOffset_Write(void); 
        !            54: void ESP_Configuration_Read(void); 
        !            55: void ESP_Configuration_Write(void); 
        !            56: void ESP_ClockConv_Write(void);
        !            57: void ESP_Test_Write(void);
        !            58: 
        !            59: void ESP_Conf2_Read(void);
        !            60: 
        !            61: void esp_reset_hard(void);
        !            62: void esp_reset_soft(void);
        !            63: void esp_bus_reset(void);
        !            64: void esp_flush_fifo(void);
        !            65: 
        !            66: void esp_message_accepted(void);
        !            67: void esp_initiator_command_complete(void);
        !            68: void esp_transfer_info(void);
        !            69: void esp_transfer_pad(void);
        !            70: void esp_select(bool atn);
        !            71: 
        !            72: void esp_raise_irq(void);
        !            73: void esp_lower_irq(void);
        !            74: 
        !            75: bool esp_transfer_done(bool write);
        !            76: 
        !            77: 
        !            78: extern Uint32 esp_counter;
        !            79: 
        !            80: void ESP_InterruptHandler(void);
        !            81: void ESP_IO_Handler(void);

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