include/hw/scsi/esp.h

   1 #ifndef QEMU_HW_ESP_H
   2 #define QEMU_HW_ESP_H
   3
   4 #include "hw/scsi/scsi.h"
   5 #include "hw/sysbus.h"
   6
   7 /* esp.c */
   8 #define ESP_MAX_DEVS 7
   9 typedef void (*ESPDMAMemoryReadWriteFunc)(void *opaque, uint8_t *buf, int len);
  10
  11 #define ESP_REGS 16
  12 #define TI_BUFSZ 16
  13 #define ESP_CMDBUF_SZ 32
  14
  15 typedef struct ESPState ESPState;
  16
  17 struct ESPState {
  18     uint8_t rregs[ESP_REGS];
  19     uint8_t wregs[ESP_REGS];
  20     qemu_irq irq;
  21     uint8_t chip_id;
  22     bool tchi_written;
  23     int32_t ti_size;
  24     uint32_t ti_rptr, ti_wptr;
  25     uint32_t status;
  26     uint32_t dma;
  27     uint8_t ti_buf[TI_BUFSZ];
  28     SCSIBus bus;
  29     SCSIDevice *current_dev;
  30     SCSIRequest *current_req;
  31     uint8_t cmdbuf[ESP_CMDBUF_SZ];
  32     uint32_t cmdlen;
  33     uint32_t do_cmd;
  34
  35     /* The amount of data left in the current DMA transfer.  */
  36     uint32_t dma_left;
  37     /* The size of the current DMA transfer.  Zero if no transfer is in
  38        progress.  */
  39     uint32_t dma_counter;
  40     int dma_enabled;
  41
  42     uint32_t async_len;
  43     uint8_t *async_buf;
  44
  45     ESPDMAMemoryReadWriteFunc dma_memory_read;
  46     ESPDMAMemoryReadWriteFunc dma_memory_write;
  47     void *dma_opaque;
  48     void (*dma_cb)(ESPState *s);
  49 };
  50
  51 #define TYPE_ESP "esp"
  52 #define ESP_STATE(obj) OBJECT_CHECK(SysBusESPState, (obj), TYPE_ESP)
  53
  54 typedef struct {
  55     /*< private >*/
  56     SysBusDevice parent_obj;
  57     /*< public >*/
  58
  59     MemoryRegion iomem;
  60     uint32_t it_shift;
  61     ESPState esp;
  62 } SysBusESPState;
  63
  64 #define ESP_TCLO   0x0
  65 #define ESP_TCMID  0x1
  66 #define ESP_FIFO   0x2
  67 #define ESP_CMD    0x3
  68 #define ESP_RSTAT  0x4
  69 #define ESP_WBUSID 0x4
  70 #define ESP_RINTR  0x5
  71 #define ESP_WSEL   0x5
  72 #define ESP_RSEQ   0x6
  73 #define ESP_WSYNTP 0x6
  74 #define ESP_RFLAGS 0x7
  75 #define ESP_WSYNO  0x7
  76 #define ESP_CFG1   0x8
  77 #define ESP_RRES1  0x9
  78 #define ESP_WCCF   0x9
  79 #define ESP_RRES2  0xa
  80 #define ESP_WTEST  0xa
  81 #define ESP_CFG2   0xb
  82 #define ESP_CFG3   0xc
  83 #define ESP_RES3   0xd
  84 #define ESP_TCHI   0xe
  85 #define ESP_RES4   0xf
  86
  87 #define CMD_DMA 0x80
  88 #define CMD_CMD 0x7f
  89
  90 #define CMD_NOP      0x00
  91 #define CMD_FLUSH    0x01
  92 #define CMD_RESET    0x02
  93 #define CMD_BUSRESET 0x03
  94 #define CMD_TI       0x10
  95 #define CMD_ICCS     0x11
  96 #define CMD_MSGACC   0x12
  97 #define CMD_PAD      0x18
  98 #define CMD_SATN     0x1a
  99 #define CMD_RSTATN   0x1b
 100 #define CMD_SEL      0x41
 101 #define CMD_SELATN   0x42
 102 #define CMD_SELATNS  0x43
 103 #define CMD_ENSEL    0x44
 104 #define CMD_DISSEL   0x45
 105
 106 #define STAT_DO 0x00
 107 #define STAT_DI 0x01
 108 #define STAT_CD 0x02
 109 #define STAT_ST 0x03
 110 #define STAT_MO 0x06
 111 #define STAT_MI 0x07
 112 #define STAT_PIO_MASK 0x06
 113
 114 #define STAT_TC 0x10
 115 #define STAT_PE 0x20
 116 #define STAT_GE 0x40
 117 #define STAT_INT 0x80
 118
 119 #define BUSID_DID 0x07
 120
 121 #define INTR_FC 0x08
 122 #define INTR_BS 0x10
 123 #define INTR_DC 0x20
 124 #define INTR_RST 0x80
 125
 126 #define SEQ_0 0x0
 127 #define SEQ_CD 0x4
 128
 129 #define CFG1_RESREPT 0x40
 130
 131 #define TCHI_FAS100A 0x4
 132 #define TCHI_AM53C974 0x12
 133
 134 ESPState *esp_init(hwaddr espaddr, int it_shift,
 135                    ESPDMAMemoryReadWriteFunc dma_memory_read,
 136                    ESPDMAMemoryReadWriteFunc dma_memory_write,
 137                    void *dma_opaque, qemu_irq irq, qemu_irq *reset,
 138                    qemu_irq *dma_enable);
 139 void esp_dma_enable(ESPState *s, int irq, int level);
 140 void esp_request_cancelled(SCSIRequest *req);
 141 void esp_command_complete(SCSIRequest *req, uint32_t status, size_t resid);
 142 void esp_transfer_data(SCSIRequest *req, uint32_t len);
 143 void esp_hard_reset(ESPState *s);
 144 uint64_t esp_reg_read(ESPState *s, uint32_t saddr);
 145 void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val);
 146 extern const VMStateDescription vmstate_esp;
 147
 148 #endif