Ondrej Zary | 48a3103 | 2014-11-24 23:24:41 +0100 | [diff] [blame^] | 1 | #ifndef _WD719X_H_ |
| 2 | #define _WD719X_H_ |
| 3 | |
| 4 | #define WD719X_SG 255 /* Scatter/gather size */ |
| 5 | #define WD719X_CMD_PER_LUN 1 /* We should be able to do linked commands, but |
| 6 | * this is 1 for now to be safe. */ |
| 7 | |
| 8 | struct wd719x_sglist { |
| 9 | __le32 ptr; |
| 10 | __le32 length; |
| 11 | } __packed; |
| 12 | |
| 13 | enum wd719x_card_type { |
| 14 | WD719X_TYPE_UNKNOWN = 0, |
| 15 | WD719X_TYPE_7193, |
| 16 | WD719X_TYPE_7197, |
| 17 | WD719X_TYPE_7296, |
| 18 | }; |
| 19 | |
| 20 | union wd719x_regs { |
| 21 | __le32 all; /* All Status at once */ |
| 22 | struct { |
| 23 | u8 OPC; /* Opcode register */ |
| 24 | u8 SCSI; /* SCSI Errors */ |
| 25 | u8 SUE; /* Spider unique Errors */ |
| 26 | u8 INT; /* Interrupt Status */ |
| 27 | } bytes; |
| 28 | }; |
| 29 | |
| 30 | /* Spider Command Block (SCB) */ |
| 31 | struct wd719x_scb { |
| 32 | __le32 Int_SCB; /* 00-03 Internal SCB link pointer (must be cleared) */ |
| 33 | u8 SCB_opcode; /* 04 SCB Command opcode */ |
| 34 | u8 CDB_tag; /* 05 SCSI Tag byte for CDB queues (0 if untagged) */ |
| 35 | u8 lun; /* 06 SCSI LUN */ |
| 36 | u8 devid; /* 07 SCSI Device ID */ |
| 37 | u8 CDB[16]; /* 08-23 SCSI CDB (16 bytes as defined by ANSI spec. */ |
| 38 | __le32 data_p; /* 24-27 Data transfer address (or SG list address) */ |
| 39 | __le32 data_length; /* 28-31 Data transfer Length (or SG list length) */ |
| 40 | __le32 CDB_link; /* 32-35 SCSI CDB Link Ptr */ |
| 41 | __le32 sense_buf; /* 36-39 Auto request sense buffer address */ |
| 42 | u8 sense_buf_length;/* 40 Auto request sense transfer length */ |
| 43 | u8 reserved; /* 41 reserved */ |
| 44 | u8 SCB_options; /* 42 SCB-options */ |
| 45 | u8 SCB_tag_msg; /* 43 Tagged messages options */ |
| 46 | /* Not filled in by host */ |
| 47 | __le32 req_ptr; /* 44-47 Ptr to Host Request returned on interrupt */ |
| 48 | u8 host_opcode; /* 48 Host Command Opcode (same as AMR_00) */ |
| 49 | u8 scsi_stat; /* 49 SCSI Status returned */ |
| 50 | u8 ret_error; /* 50 SPIDER Unique Error Code returned (SUE) */ |
| 51 | u8 int_stat; /* 51 Message u8 / Interrupt Status byte returned */ |
| 52 | __le32 transferred; /* 52-55 Bytes Transferred */ |
| 53 | u8 last_trans[3]; /* 56-58 Bytes Transferred in last session */ |
| 54 | u8 length; /* 59 SCSI Messages Length (1-8) */ |
| 55 | u8 sync_offset; /* 60 Synchronous offset */ |
| 56 | u8 sync_rate; /* 61 Synchronous rate */ |
| 57 | u8 flags[2]; /* 62-63 SCB specific flags (local to each thread) */ |
| 58 | /* everything below is for driver use (not used by card) */ |
| 59 | dma_addr_t phys; /* bus address of the SCB */ |
| 60 | struct scsi_cmnd *cmd; /* a copy of the pointer we were passed */ |
| 61 | struct list_head list; |
| 62 | struct wd719x_sglist sg_list[WD719X_SG] __aligned(8); /* SG list */ |
| 63 | } __packed; |
| 64 | |
| 65 | struct wd719x { |
| 66 | struct Scsi_Host *sh; /* pointer to host structure */ |
| 67 | struct pci_dev *pdev; |
| 68 | void __iomem *base; |
| 69 | enum wd719x_card_type type; /* type of card */ |
| 70 | void *fw_virt; /* firmware buffer CPU address */ |
| 71 | dma_addr_t fw_phys; /* firmware buffer bus address */ |
| 72 | size_t fw_size; /* firmware buffer size */ |
| 73 | struct wd719x_host_param *params; /* host parameters (EEPROM) */ |
| 74 | dma_addr_t params_phys; /* host parameters bus address */ |
| 75 | void *hash_virt; /* hash table CPU address */ |
| 76 | dma_addr_t hash_phys; /* hash table bus address */ |
| 77 | struct list_head active_scbs; |
| 78 | struct list_head free_scbs; |
| 79 | }; |
| 80 | |
| 81 | /* timeout delays in microsecs */ |
| 82 | #define WD719X_WAIT_FOR_CMD_READY 500 |
| 83 | #define WD719X_WAIT_FOR_RISC 2000 |
| 84 | #define WD719X_WAIT_FOR_SCSI_RESET 3000000 |
| 85 | |
| 86 | /* All commands except 0x00 generate an interrupt */ |
| 87 | #define WD719X_CMD_READY 0x00 /* Command register ready (or noop) */ |
| 88 | #define WD719X_CMD_INIT_RISC 0x01 /* Initialize RISC */ |
| 89 | /* 0x02 is reserved */ |
| 90 | #define WD719X_CMD_BUSRESET 0x03 /* Assert SCSI bus reset */ |
| 91 | #define WD719X_CMD_READ_FIRMVER 0x04 /* Read the Firmware Revision */ |
| 92 | #define WD719X_CMD_ECHO_BYTES 0x05 /* Echo command bytes (DW) */ |
| 93 | /* 0x06 is reserved */ |
| 94 | /* 0x07 is reserved */ |
| 95 | #define WD719X_CMD_GET_PARAM 0x08 /* Get programmable parameters */ |
| 96 | #define WD719X_CMD_SET_PARAM 0x09 /* Set programmable parameters */ |
| 97 | #define WD719X_CMD_SLEEP 0x0a /* Put SPIDER to sleep */ |
| 98 | #define WD719X_CMD_READ_INIT 0x0b /* Read initialization parameters */ |
| 99 | #define WD719X_CMD_RESTORE_INIT 0x0c /* Restore initialization parameters */ |
| 100 | /* 0x0d is reserved */ |
| 101 | /* 0x0e is reserved */ |
| 102 | /* 0x0f is reserved */ |
| 103 | #define WD719X_CMD_ABORT_TAG 0x10 /* Send Abort tag message to target */ |
| 104 | #define WD719X_CMD_ABORT 0x11 /* Send Abort message to target */ |
| 105 | #define WD719X_CMD_RESET 0x12 /* Send Reset message to target */ |
| 106 | #define WD719X_CMD_INIT_SCAM 0x13 /* Initiate SCAM */ |
| 107 | #define WD719X_CMD_GET_SYNC 0x14 /* Get synchronous rates */ |
| 108 | #define WD719X_CMD_SET_SYNC 0x15 /* Set synchronous rates */ |
| 109 | #define WD719X_CMD_GET_WIDTH 0x16 /* Get SCSI bus width */ |
| 110 | #define WD719X_CMD_SET_WIDTH 0x17 /* Set SCSI bus width */ |
| 111 | #define WD719X_CMD_GET_TAGS 0x18 /* Get tag flags */ |
| 112 | #define WD719X_CMD_SET_TAGS 0x19 /* Set tag flags */ |
| 113 | #define WD719X_CMD_GET_PARAM2 0x1a /* Get programmable params (format 2) */ |
| 114 | #define WD719X_CMD_SET_PARAM2 0x1b /* Set programmable params (format 2) */ |
| 115 | /* Commands with request pointers (mailbox) */ |
| 116 | #define WD719X_CMD_PROCESS_SCB 0x80 /* Process SCSI Control Block (SCB) */ |
| 117 | /* No interrupt generated on acceptance of SCB pointer */ |
| 118 | |
| 119 | /* interrupt status defines */ |
| 120 | #define WD719X_INT_NONE 0x00 /* No interrupt pending */ |
| 121 | #define WD719X_INT_NOERRORS 0x01 /* Command completed with no errors */ |
| 122 | #define WD719X_INT_LINKNOERRORS 0x02 /* link cmd completed with no errors */ |
| 123 | #define WD719X_INT_LINKNOSTATUS 0x03 /* link cmd completed with no flag set */ |
| 124 | #define WD719X_INT_ERRORSLOGGED 0x04 /* cmd completed with errors logged */ |
| 125 | #define WD719X_INT_SPIDERFAILED 0x05 /* cmd failed without valid SCSI status */ |
| 126 | #define WD719X_INT_BADINT 0x80 /* unsolicited interrupt */ |
| 127 | #define WD719X_INT_PIOREADY 0xf0 /* data ready for PIO output */ |
| 128 | |
| 129 | /* Spider Unique Error Codes (SUE) */ |
| 130 | #define WD719X_SUE_NOERRORS 0x00 /* No errors detected by SPIDER */ |
| 131 | #define WD719X_SUE_REJECTED 0x01 /* Command Rejected (bad opcode/param) */ |
| 132 | #define WD719X_SUE_SCBQFULL 0x02 /* SCB queue full */ |
| 133 | /* 0x03 is reserved */ |
| 134 | #define WD719X_SUE_TERM 0x04 /* Host terminated SCB via primative cmd */ |
| 135 | #define WD719X_SUE_CHAN1PAR 0x05 /* PCI Channel 1 parity error occurred */ |
| 136 | #define WD719X_SUE_CHAN1ABORT 0x06 /* PCI Channel 1 system abort occurred */ |
| 137 | #define WD719X_SUE_CHAN23PAR 0x07 /* PCI Channel 2/3 parity error occurred */ |
| 138 | #define WD719X_SUE_CHAN23ABORT 0x08 /* PCI Channel 2/3 system abort occurred */ |
| 139 | #define WD719X_SUE_TIMEOUT 0x10 /* Selection/reselection timeout */ |
| 140 | #define WD719X_SUE_RESET 0x11 /* SCSI bus reset occurred */ |
| 141 | #define WD719X_SUE_BUSERROR 0x12 /* SCSI bus error */ |
| 142 | #define WD719X_SUE_WRONGWAY 0x13 /* Wrong data transfer dir set by target */ |
| 143 | #define WD719X_SUE_BADPHASE 0x14 /* SCSI phase illegal or unexpected */ |
| 144 | #define WD719X_SUE_TOOLONG 0x15 /* target requested too much data */ |
| 145 | #define WD719X_SUE_BUSFREE 0x16 /* Unexpected SCSI bus free */ |
| 146 | #define WD719X_SUE_ARSDONE 0x17 /* Auto request sense executed */ |
| 147 | #define WD719X_SUE_IGNORED 0x18 /* SCSI message was ignored by target */ |
| 148 | #define WD719X_SUE_WRONGTAGS 0x19 /* Tagged SCB & tags off (or vice versa) */ |
| 149 | #define WD719X_SUE_BADTAGS 0x1a /* Wrong tag message type for target */ |
| 150 | #define WD719X_SUE_NOSCAMID 0x1b /* No SCAM soft ID available */ |
| 151 | |
| 152 | /* code sizes */ |
| 153 | #define WD719X_HASH_TABLE_SIZE 4096 |
| 154 | |
| 155 | /* Advanced Mode Registers */ |
| 156 | /* Regs 0x00..0x1f are for Advanced Mode of the card (RISC is running). */ |
| 157 | #define WD719X_AMR_COMMAND 0x00 |
| 158 | #define WD719X_AMR_CMD_PARAM 0x01 |
| 159 | #define WD719X_AMR_CMD_PARAM_2 0x02 |
| 160 | #define WD719X_AMR_CMD_PARAM_3 0x03 |
| 161 | #define WD719X_AMR_SCB_IN 0x04 |
| 162 | |
| 163 | #define WD719X_AMR_BIOS_SHARE_INT 0x0f |
| 164 | |
| 165 | #define WD719X_AMR_SCB_OUT 0x18 |
| 166 | #define WD719X_AMR_OP_CODE 0x1c |
| 167 | #define WD719X_AMR_SCSI_STATUS 0x1d |
| 168 | #define WD719X_AMR_SCB_ERROR 0x1e |
| 169 | #define WD719X_AMR_INT_STATUS 0x1f |
| 170 | |
| 171 | #define WD719X_DISABLE_INT 0x80 |
| 172 | |
| 173 | /* SCB flags */ |
| 174 | #define WD719X_SCB_FLAGS_CHECK_DIRECTION 0x01 |
| 175 | #define WD719X_SCB_FLAGS_PCI_TO_SCSI 0x02 |
| 176 | #define WD719X_SCB_FLAGS_AUTO_REQUEST_SENSE 0x10 |
| 177 | #define WD719X_SCB_FLAGS_DO_SCATTER_GATHER 0x20 |
| 178 | #define WD719X_SCB_FLAGS_NO_DISCONNECT 0x40 |
| 179 | |
| 180 | /* PCI Registers used for reset, initial code download */ |
| 181 | /* Regs 0x20..0x3f are for Normal (DOS) mode (RISC is asleep). */ |
| 182 | #define WD719X_PCI_GPIO_CONTROL 0x3C |
| 183 | #define WD719X_PCI_GPIO_DATA 0x3D |
| 184 | #define WD719X_PCI_PORT_RESET 0x3E |
| 185 | #define WD719X_PCI_MODE_SELECT 0x3F |
| 186 | |
| 187 | #define WD719X_PCI_EXTERNAL_ADDR 0x60 |
| 188 | #define WD719X_PCI_INTERNAL_ADDR 0x64 |
| 189 | #define WD719X_PCI_DMA_TRANSFER_SIZE 0x66 |
| 190 | #define WD719X_PCI_CHANNEL2_3CMD 0x68 |
| 191 | #define WD719X_PCI_CHANNEL2_3STATUS 0x69 |
| 192 | |
| 193 | #define WD719X_GPIO_ID_BITS 0x0a |
| 194 | #define WD719X_PRAM_BASE_ADDR 0x00 |
| 195 | |
| 196 | /* codes written to or read from the card */ |
| 197 | #define WD719X_PCI_RESET 0x01 |
| 198 | #define WD719X_ENABLE_ADVANCE_MODE 0x01 |
| 199 | |
| 200 | #define WD719X_START_CHANNEL2_3DMA 0x17 |
| 201 | #define WD719X_START_CHANNEL2_3DONE 0x01 |
| 202 | #define WD719X_START_CHANNEL2_3ABORT 0x20 |
| 203 | |
| 204 | /* 33C296 GPIO bits for EEPROM pins */ |
| 205 | #define WD719X_EE_DI (1 << 1) |
| 206 | #define WD719X_EE_CS (1 << 2) |
| 207 | #define WD719X_EE_CLK (1 << 3) |
| 208 | #define WD719X_EE_DO (1 << 4) |
| 209 | |
| 210 | /* EEPROM contents */ |
| 211 | struct wd719x_eeprom_header { |
| 212 | u8 sig1; |
| 213 | u8 sig2; |
| 214 | u8 version; |
| 215 | u8 checksum; |
| 216 | u8 cfg_offset; |
| 217 | u8 cfg_size; |
| 218 | u8 setup_offset; |
| 219 | u8 setup_size; |
| 220 | } __packed; |
| 221 | |
| 222 | #define WD719X_EE_SIG1 0 |
| 223 | #define WD719X_EE_SIG2 1 |
| 224 | #define WD719X_EE_VERSION 2 |
| 225 | #define WD719X_EE_CHECKSUM 3 |
| 226 | #define WD719X_EE_CFG_OFFSET 4 |
| 227 | #define WD719X_EE_CFG_SIZE 5 |
| 228 | #define WD719X_EE_SETUP_OFFSET 6 |
| 229 | #define WD719X_EE_SETUP_SIZE 7 |
| 230 | |
| 231 | #define WD719X_EE_SCSI_ID_MASK 0xf |
| 232 | |
| 233 | /* SPIDER Host Parameters Block (=EEPROM configuration block) */ |
| 234 | struct wd719x_host_param { |
| 235 | u8 ch_1_th; /* FIFO threshold */ |
| 236 | u8 scsi_conf; /* SCSI configuration */ |
| 237 | u8 own_scsi_id; /* controller SCSI ID */ |
| 238 | u8 sel_timeout; /* selection timeout*/ |
| 239 | u8 sleep_timer; /* seep timer */ |
| 240 | __le16 cdb_size;/* CDB size groups */ |
| 241 | __le16 tag_en; /* Tag msg enables (ID 0-15) */ |
| 242 | u8 scsi_pad; /* SCSI pad control */ |
| 243 | __le32 wide; /* WIDE msg options (ID 0-15) */ |
| 244 | __le32 sync; /* SYNC msg options (ID 0-15) */ |
| 245 | u8 soft_mask; /* soft error mask */ |
| 246 | u8 unsol_mask; /* unsolicited error mask */ |
| 247 | } __packed; |
| 248 | |
| 249 | #endif /* _WD719X_H_ */ |