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-rw-r--r--src/include/hw/scsi/esp.h133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/include/hw/scsi/esp.h b/src/include/hw/scsi/esp.h
new file mode 100644
index 0000000..6c79527
--- /dev/null
+++ b/src/include/hw/scsi/esp.h
@@ -0,0 +1,133 @@
+#ifndef QEMU_HW_ESP_H
+#define QEMU_HW_ESP_H
+
+#include "hw/scsi/scsi.h"
+
+/* esp.c */
+#define ESP_MAX_DEVS 7
+typedef void (*ESPDMAMemoryReadWriteFunc)(void *opaque, uint8_t *buf, int len);
+void esp_init(hwaddr espaddr, int it_shift,
+ ESPDMAMemoryReadWriteFunc dma_memory_read,
+ ESPDMAMemoryReadWriteFunc dma_memory_write,
+ void *dma_opaque, qemu_irq irq, qemu_irq *reset,
+ qemu_irq *dma_enable);
+
+#define ESP_REGS 16
+#define TI_BUFSZ 16
+
+typedef struct ESPState ESPState;
+
+struct ESPState {
+ uint8_t rregs[ESP_REGS];
+ uint8_t wregs[ESP_REGS];
+ qemu_irq irq;
+ uint8_t chip_id;
+ bool tchi_written;
+ int32_t ti_size;
+ uint32_t ti_rptr, ti_wptr;
+ uint32_t status;
+ uint32_t dma;
+ uint8_t ti_buf[TI_BUFSZ];
+ SCSIBus bus;
+ SCSIDevice *current_dev;
+ SCSIRequest *current_req;
+ uint8_t cmdbuf[TI_BUFSZ];
+ uint32_t cmdlen;
+ uint32_t do_cmd;
+
+ /* The amount of data left in the current DMA transfer. */
+ uint32_t dma_left;
+ /* The size of the current DMA transfer. Zero if no transfer is in
+ progress. */
+ uint32_t dma_counter;
+ int dma_enabled;
+
+ uint32_t async_len;
+ uint8_t *async_buf;
+
+ ESPDMAMemoryReadWriteFunc dma_memory_read;
+ ESPDMAMemoryReadWriteFunc dma_memory_write;
+ void *dma_opaque;
+ void (*dma_cb)(ESPState *s);
+};
+
+#define ESP_TCLO 0x0
+#define ESP_TCMID 0x1
+#define ESP_FIFO 0x2
+#define ESP_CMD 0x3
+#define ESP_RSTAT 0x4
+#define ESP_WBUSID 0x4
+#define ESP_RINTR 0x5
+#define ESP_WSEL 0x5
+#define ESP_RSEQ 0x6
+#define ESP_WSYNTP 0x6
+#define ESP_RFLAGS 0x7
+#define ESP_WSYNO 0x7
+#define ESP_CFG1 0x8
+#define ESP_RRES1 0x9
+#define ESP_WCCF 0x9
+#define ESP_RRES2 0xa
+#define ESP_WTEST 0xa
+#define ESP_CFG2 0xb
+#define ESP_CFG3 0xc
+#define ESP_RES3 0xd
+#define ESP_TCHI 0xe
+#define ESP_RES4 0xf
+
+#define CMD_DMA 0x80
+#define CMD_CMD 0x7f
+
+#define CMD_NOP 0x00
+#define CMD_FLUSH 0x01
+#define CMD_RESET 0x02
+#define CMD_BUSRESET 0x03
+#define CMD_TI 0x10
+#define CMD_ICCS 0x11
+#define CMD_MSGACC 0x12
+#define CMD_PAD 0x18
+#define CMD_SATN 0x1a
+#define CMD_RSTATN 0x1b
+#define CMD_SEL 0x41
+#define CMD_SELATN 0x42
+#define CMD_SELATNS 0x43
+#define CMD_ENSEL 0x44
+#define CMD_DISSEL 0x45
+
+#define STAT_DO 0x00
+#define STAT_DI 0x01
+#define STAT_CD 0x02
+#define STAT_ST 0x03
+#define STAT_MO 0x06
+#define STAT_MI 0x07
+#define STAT_PIO_MASK 0x06
+
+#define STAT_TC 0x10
+#define STAT_PE 0x20
+#define STAT_GE 0x40
+#define STAT_INT 0x80
+
+#define BUSID_DID 0x07
+
+#define INTR_FC 0x08
+#define INTR_BS 0x10
+#define INTR_DC 0x20
+#define INTR_RST 0x80
+
+#define SEQ_0 0x0
+#define SEQ_CD 0x4
+
+#define CFG1_RESREPT 0x40
+
+#define TCHI_FAS100A 0x4
+#define TCHI_AM53C974 0x12
+
+void esp_dma_enable(ESPState *s, int irq, int level);
+void esp_request_cancelled(SCSIRequest *req);
+void esp_command_complete(SCSIRequest *req, uint32_t status, size_t resid);
+void esp_transfer_data(SCSIRequest *req, uint32_t len);
+void esp_hard_reset(ESPState *s);
+uint64_t esp_reg_read(ESPState *s, uint32_t saddr);
+void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val);
+extern const VMStateDescription vmstate_esp;
+
+#endif
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