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Annotation of previous_trunk/src/includes/esp.h, revision 1.1.1.1

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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