Merge remote-tracking branch 'remotes/juanquintela/tags/migration.next-pull-request...
[qemu.git] / 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 #include "qemu/fifo8.h"
7 #include "qom/object.h"
8
9 /* esp.c */
10 #define ESP_MAX_DEVS 7
11 typedef void (*ESPDMAMemoryReadWriteFunc)(void *opaque, uint8_t *buf, int len);
12
13 #define ESP_REGS 16
14 #define ESP_FIFO_SZ 16
15 #define ESP_CMDFIFO_SZ 32
16
17 typedef struct ESPState ESPState;
18
19 #define TYPE_ESP "esp"
20 OBJECT_DECLARE_SIMPLE_TYPE(ESPState, ESP)
21
22 struct ESPState {
23 DeviceState parent_obj;
24
25 uint8_t rregs[ESP_REGS];
26 uint8_t wregs[ESP_REGS];
27 qemu_irq irq;
28 qemu_irq irq_data;
29 uint8_t chip_id;
30 bool tchi_written;
31 int32_t ti_size;
32 uint32_t status;
33 uint32_t dma;
34 Fifo8 fifo;
35 SCSIBus bus;
36 SCSIDevice *current_dev;
37 SCSIRequest *current_req;
38 Fifo8 cmdfifo;
39 uint8_t cmdfifo_cdb_offset;
40 uint8_t lun;
41 uint32_t do_cmd;
42
43 bool data_in_ready;
44 uint8_t ti_cmd;
45 int dma_enabled;
46
47 uint32_t async_len;
48 uint8_t *async_buf;
49
50 ESPDMAMemoryReadWriteFunc dma_memory_read;
51 ESPDMAMemoryReadWriteFunc dma_memory_write;
52 void *dma_opaque;
53 void (*dma_cb)(ESPState *s);
54 void (*pdma_cb)(ESPState *s);
55
56 uint8_t mig_version_id;
57
58 /* Legacy fields for vmstate_esp version < 5 */
59 uint32_t mig_dma_left;
60 uint32_t mig_deferred_status;
61 bool mig_deferred_complete;
62 uint32_t mig_ti_rptr, mig_ti_wptr;
63 uint8_t mig_ti_buf[ESP_FIFO_SZ];
64 uint8_t mig_cmdbuf[ESP_CMDFIFO_SZ];
65 uint32_t mig_cmdlen;
66 };
67
68 #define TYPE_SYSBUS_ESP "sysbus-esp"
69 OBJECT_DECLARE_SIMPLE_TYPE(SysBusESPState, SYSBUS_ESP)
70
71 struct SysBusESPState {
72 /*< private >*/
73 SysBusDevice parent_obj;
74 /*< public >*/
75
76 MemoryRegion iomem;
77 MemoryRegion pdma;
78 uint32_t it_shift;
79 ESPState esp;
80 };
81
82 #define ESP_TCLO 0x0
83 #define ESP_TCMID 0x1
84 #define ESP_FIFO 0x2
85 #define ESP_CMD 0x3
86 #define ESP_RSTAT 0x4
87 #define ESP_WBUSID 0x4
88 #define ESP_RINTR 0x5
89 #define ESP_WSEL 0x5
90 #define ESP_RSEQ 0x6
91 #define ESP_WSYNTP 0x6
92 #define ESP_RFLAGS 0x7
93 #define ESP_WSYNO 0x7
94 #define ESP_CFG1 0x8
95 #define ESP_RRES1 0x9
96 #define ESP_WCCF 0x9
97 #define ESP_RRES2 0xa
98 #define ESP_WTEST 0xa
99 #define ESP_CFG2 0xb
100 #define ESP_CFG3 0xc
101 #define ESP_RES3 0xd
102 #define ESP_TCHI 0xe
103 #define ESP_RES4 0xf
104
105 #define CMD_DMA 0x80
106 #define CMD_CMD 0x7f
107
108 #define CMD_NOP 0x00
109 #define CMD_FLUSH 0x01
110 #define CMD_RESET 0x02
111 #define CMD_BUSRESET 0x03
112 #define CMD_TI 0x10
113 #define CMD_ICCS 0x11
114 #define CMD_MSGACC 0x12
115 #define CMD_PAD 0x18
116 #define CMD_SATN 0x1a
117 #define CMD_RSTATN 0x1b
118 #define CMD_SEL 0x41
119 #define CMD_SELATN 0x42
120 #define CMD_SELATNS 0x43
121 #define CMD_ENSEL 0x44
122 #define CMD_DISSEL 0x45
123
124 #define STAT_DO 0x00
125 #define STAT_DI 0x01
126 #define STAT_CD 0x02
127 #define STAT_ST 0x03
128 #define STAT_MO 0x06
129 #define STAT_MI 0x07
130 #define STAT_PIO_MASK 0x06
131
132 #define STAT_TC 0x10
133 #define STAT_PE 0x20
134 #define STAT_GE 0x40
135 #define STAT_INT 0x80
136
137 #define BUSID_DID 0x07
138
139 #define INTR_FC 0x08
140 #define INTR_BS 0x10
141 #define INTR_DC 0x20
142 #define INTR_RST 0x80
143
144 #define SEQ_0 0x0
145 #define SEQ_MO 0x1
146 #define SEQ_CD 0x4
147
148 #define CFG1_RESREPT 0x40
149
150 #define TCHI_FAS100A 0x4
151 #define TCHI_AM53C974 0x12
152
153 void esp_dma_enable(ESPState *s, int irq, int level);
154 void esp_request_cancelled(SCSIRequest *req);
155 void esp_command_complete(SCSIRequest *req, size_t resid);
156 void esp_transfer_data(SCSIRequest *req, uint32_t len);
157 void esp_hard_reset(ESPState *s);
158 uint64_t esp_reg_read(ESPState *s, uint32_t saddr);
159 void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val);
160 extern const VMStateDescription vmstate_esp;
161 int esp_pre_save(void *opaque);
162
163 #endif