Lines Matching full:esp
1 /* esp_scsi.c: ESP SCSI driver.
32 #define DRV_MODULE_NAME "esp"
57 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
62 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
67 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
72 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
77 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
82 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
87 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
92 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
97 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
102 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
107 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
112 shost_printk(KERN_DEBUG, esp->host, f, ## a); \
115 #define esp_read8(REG) esp->ops->esp_read8(esp, REG)
116 #define esp_write8(VAL,REG) esp->ops->esp_write8(esp, VAL, REG)
118 static void esp_log_fill_regs(struct esp *esp, in esp_log_fill_regs() argument
121 p->sreg = esp->sreg; in esp_log_fill_regs()
122 p->seqreg = esp->seqreg; in esp_log_fill_regs()
123 p->sreg2 = esp->sreg2; in esp_log_fill_regs()
124 p->ireg = esp->ireg; in esp_log_fill_regs()
125 p->select_state = esp->select_state; in esp_log_fill_regs()
126 p->event = esp->event; in esp_log_fill_regs()
129 void scsi_esp_cmd(struct esp *esp, u8 val) in scsi_esp_cmd() argument
132 int idx = esp->esp_event_cur; in scsi_esp_cmd()
134 p = &esp->esp_event_log[idx]; in scsi_esp_cmd()
137 esp_log_fill_regs(esp, p); in scsi_esp_cmd()
139 esp->esp_event_cur = (idx + 1) & (ESP_EVENT_LOG_SZ - 1); in scsi_esp_cmd()
146 static void esp_send_dma_cmd(struct esp *esp, int len, int max_len, int cmd) in esp_send_dma_cmd() argument
148 if (esp->flags & ESP_FLAG_USE_FIFO) { in esp_send_dma_cmd()
151 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_send_dma_cmd()
153 esp_write8(esp->command_block[i], ESP_FDATA); in esp_send_dma_cmd()
154 scsi_esp_cmd(esp, cmd); in esp_send_dma_cmd()
156 if (esp->rev == FASHME) in esp_send_dma_cmd()
157 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_send_dma_cmd()
159 esp->ops->send_dma_cmd(esp, esp->command_block_dma, in esp_send_dma_cmd()
164 static void esp_event(struct esp *esp, u8 val) in esp_event() argument
167 int idx = esp->esp_event_cur; in esp_event()
169 p = &esp->esp_event_log[idx]; in esp_event()
172 esp_log_fill_regs(esp, p); in esp_event()
174 esp->esp_event_cur = (idx + 1) & (ESP_EVENT_LOG_SZ - 1); in esp_event()
176 esp->event = val; in esp_event()
179 static void esp_dump_cmd_log(struct esp *esp) in esp_dump_cmd_log() argument
181 int idx = esp->esp_event_cur; in esp_dump_cmd_log()
184 shost_printk(KERN_INFO, esp->host, "Dumping command log\n"); in esp_dump_cmd_log()
186 struct esp_event_ent *p = &esp->esp_event_log[idx]; in esp_dump_cmd_log()
188 shost_printk(KERN_INFO, esp->host, in esp_dump_cmd_log()
200 static void esp_flush_fifo(struct esp *esp) in esp_flush_fifo() argument
202 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_flush_fifo()
203 if (esp->rev == ESP236) { in esp_flush_fifo()
208 shost_printk(KERN_ALERT, esp->host, in esp_flush_fifo()
217 static void hme_read_fifo(struct esp *esp) in hme_read_fifo() argument
223 esp->fifo[idx++] = esp_read8(ESP_FDATA); in hme_read_fifo()
224 esp->fifo[idx++] = esp_read8(ESP_FDATA); in hme_read_fifo()
226 if (esp->sreg2 & ESP_STAT2_F1BYTE) { in hme_read_fifo()
228 esp->fifo[idx++] = esp_read8(ESP_FDATA); in hme_read_fifo()
229 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in hme_read_fifo()
231 esp->fifo_cnt = idx; in hme_read_fifo()
234 static void esp_set_all_config3(struct esp *esp, u8 val) in esp_set_all_config3() argument
239 esp->target[i].esp_config3 = val; in esp_set_all_config3()
242 /* Reset the ESP chip, _not_ the SCSI bus. */
243 static void esp_reset_esp(struct esp *esp) in esp_reset_esp() argument
247 /* Now reset the ESP chip */ in esp_reset_esp()
248 scsi_esp_cmd(esp, ESP_CMD_RC); in esp_reset_esp()
249 scsi_esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA); in esp_reset_esp()
250 if (esp->rev == FAST) in esp_reset_esp()
252 scsi_esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA); in esp_reset_esp()
255 * the ID-code for a fast ESP chip variants. in esp_reset_esp()
257 esp->max_period = ((35 * esp->ccycle) / 1000); in esp_reset_esp()
258 if (esp->rev == FAST) { in esp_reset_esp()
262 esp->rev = FAS236; in esp_reset_esp()
264 esp->rev = FASHME; /* Version is usually '5'. */ in esp_reset_esp()
266 esp->rev = FAS100A; in esp_reset_esp()
267 esp->min_period = ((4 * esp->ccycle) / 1000); in esp_reset_esp()
269 esp->min_period = ((5 * esp->ccycle) / 1000); in esp_reset_esp()
271 if (esp->rev == FAS236) { in esp_reset_esp()
280 esp->rev = PCSCSI; in esp_reset_esp()
281 esp_write8(esp->config4, ESP_CFG4); in esp_reset_esp()
284 esp->max_period = (esp->max_period + 3)>>2; in esp_reset_esp()
285 esp->min_period = (esp->min_period + 3)>>2; in esp_reset_esp()
287 esp_write8(esp->config1, ESP_CFG1); in esp_reset_esp()
288 switch (esp->rev) { in esp_reset_esp()
294 esp_write8(esp->config2, ESP_CFG2); in esp_reset_esp()
299 esp_write8(esp->config2, ESP_CFG2); in esp_reset_esp()
300 esp->prev_cfg3 = esp->target[0].esp_config3; in esp_reset_esp()
301 esp_write8(esp->prev_cfg3, ESP_CFG3); in esp_reset_esp()
305 esp->config2 |= (ESP_CONFIG2_HME32 | ESP_CONFIG2_HMEFENAB); in esp_reset_esp()
311 esp_write8(esp->config2, ESP_CFG2); in esp_reset_esp()
312 if (esp->rev == FASHME) { in esp_reset_esp()
313 u8 cfg3 = esp->target[0].esp_config3; in esp_reset_esp()
316 if (esp->scsi_id >= 8) in esp_reset_esp()
318 esp_set_all_config3(esp, cfg3); in esp_reset_esp()
320 u32 cfg3 = esp->target[0].esp_config3; in esp_reset_esp()
323 esp_set_all_config3(esp, cfg3); in esp_reset_esp()
325 esp->prev_cfg3 = esp->target[0].esp_config3; in esp_reset_esp()
326 esp_write8(esp->prev_cfg3, ESP_CFG3); in esp_reset_esp()
327 if (esp->rev == FASHME) { in esp_reset_esp()
328 esp->radelay = 80; in esp_reset_esp()
330 if (esp->flags & ESP_FLAG_DIFFERENTIAL) in esp_reset_esp()
331 esp->radelay = 0; in esp_reset_esp()
333 esp->radelay = 96; in esp_reset_esp()
339 esp_write8(esp->config2, ESP_CFG2); in esp_reset_esp()
340 esp_set_all_config3(esp, in esp_reset_esp()
341 (esp->target[0].esp_config3 | in esp_reset_esp()
343 esp->prev_cfg3 = esp->target[0].esp_config3; in esp_reset_esp()
344 esp_write8(esp->prev_cfg3, ESP_CFG3); in esp_reset_esp()
345 esp->radelay = 32; in esp_reset_esp()
353 esp_write8(esp->cfact, ESP_CFACT); in esp_reset_esp()
355 esp->prev_stp = 0; in esp_reset_esp()
356 esp_write8(esp->prev_stp, ESP_STP); in esp_reset_esp()
358 esp->prev_soff = 0; in esp_reset_esp()
359 esp_write8(esp->prev_soff, ESP_SOFF); in esp_reset_esp()
361 esp_write8(esp->neg_defp, ESP_TIMEO); in esp_reset_esp()
368 static void esp_map_dma(struct esp *esp, struct scsi_cmnd *cmd) in esp_map_dma() argument
378 spriv->u.num_sg = esp->ops->map_sg(esp, sg, scsi_sg_count(cmd), dir); in esp_map_dma()
415 static void esp_advance_dma(struct esp *esp, struct esp_cmd_entry *ent, in esp_advance_dma() argument
428 shost_printk(KERN_ERR, esp->host, in esp_advance_dma()
430 shost_printk(KERN_ERR, esp->host, in esp_advance_dma()
442 static void esp_unmap_dma(struct esp *esp, struct scsi_cmnd *cmd) in esp_unmap_dma() argument
450 esp->ops->unmap_sg(esp, scsi_sglist(cmd), spriv->u.num_sg, dir); in esp_unmap_dma()
453 static void esp_save_pointers(struct esp *esp, struct esp_cmd_entry *ent) in esp_save_pointers() argument
467 static void esp_restore_pointers(struct esp *esp, struct esp_cmd_entry *ent) in esp_restore_pointers() argument
481 static void esp_check_command_len(struct esp *esp, struct scsi_cmnd *cmd) in esp_check_command_len() argument
486 esp->flags &= ~ESP_FLAG_DOING_SLOWCMD; in esp_check_command_len()
488 esp->flags |= ESP_FLAG_DOING_SLOWCMD; in esp_check_command_len()
492 static void esp_write_tgt_config3(struct esp *esp, int tgt) in esp_write_tgt_config3() argument
494 if (esp->rev > ESP100A) { in esp_write_tgt_config3()
495 u8 val = esp->target[tgt].esp_config3; in esp_write_tgt_config3()
497 if (val != esp->prev_cfg3) { in esp_write_tgt_config3()
498 esp->prev_cfg3 = val; in esp_write_tgt_config3()
504 static void esp_write_tgt_sync(struct esp *esp, int tgt) in esp_write_tgt_sync() argument
506 u8 off = esp->target[tgt].esp_offset; in esp_write_tgt_sync()
507 u8 per = esp->target[tgt].esp_period; in esp_write_tgt_sync()
509 if (off != esp->prev_soff) { in esp_write_tgt_sync()
510 esp->prev_soff = off; in esp_write_tgt_sync()
513 if (per != esp->prev_stp) { in esp_write_tgt_sync()
514 esp->prev_stp = per; in esp_write_tgt_sync()
519 static u32 esp_dma_length_limit(struct esp *esp, u32 dma_addr, u32 dma_len) in esp_dma_length_limit() argument
521 if (esp->rev == FASHME) { in esp_dma_length_limit()
528 /* ESP chip limits other variants by 16-bits of transfer in esp_dma_length_limit()
634 static void esp_autosense(struct esp *esp, struct esp_cmd_entry *ent) in esp_autosense() argument
650 ent->sense_dma = esp->ops->map_single(esp, in esp_autosense()
657 esp->active_cmd = ent; in esp_autosense()
659 p = esp->command_block; in esp_autosense()
660 esp->msg_out_len = 0; in esp_autosense()
671 esp->select_state = ESP_SELECT_BASIC; in esp_autosense()
674 if (esp->rev == FASHME) in esp_autosense()
678 esp_write_tgt_sync(esp, tgt); in esp_autosense()
679 esp_write_tgt_config3(esp, tgt); in esp_autosense()
681 val = (p - esp->command_block); in esp_autosense()
683 esp_send_dma_cmd(esp, val, 16, ESP_CMD_SELA); in esp_autosense()
686 static struct esp_cmd_entry *find_and_prep_issuable_command(struct esp *esp) in find_and_prep_issuable_command() argument
690 list_for_each_entry(ent, &esp->queued_cmds, list) { in find_and_prep_issuable_command()
717 static void esp_maybe_execute_command(struct esp *esp) in esp_maybe_execute_command() argument
728 if (esp->active_cmd || in esp_maybe_execute_command()
729 (esp->flags & ESP_FLAG_RESETTING)) in esp_maybe_execute_command()
732 ent = find_and_prep_issuable_command(esp); in esp_maybe_execute_command()
737 esp_autosense(esp, ent); in esp_maybe_execute_command()
745 tp = &esp->target[tgt]; in esp_maybe_execute_command()
748 list_move(&ent->list, &esp->active_cmds); in esp_maybe_execute_command()
750 esp->active_cmd = ent; in esp_maybe_execute_command()
752 esp_map_dma(esp, cmd); in esp_maybe_execute_command()
753 esp_save_pointers(esp, ent); in esp_maybe_execute_command()
755 esp_check_command_len(esp, cmd); in esp_maybe_execute_command()
757 p = esp->command_block; in esp_maybe_execute_command()
759 esp->msg_out_len = 0; in esp_maybe_execute_command()
780 if (esp->rev == FASHME && esp_need_to_nego_wide(tp)) { in esp_maybe_execute_command()
781 esp->msg_out_len = in esp_maybe_execute_command()
782 spi_populate_width_msg(&esp->msg_out[0], in esp_maybe_execute_command()
787 esp->msg_out_len = in esp_maybe_execute_command()
788 spi_populate_sync_msg(&esp->msg_out[0], in esp_maybe_execute_command()
798 esp->flags |= ESP_FLAG_DOING_SLOWCMD; in esp_maybe_execute_command()
811 if (ent->tag[0] && esp->rev == ESP100) { in esp_maybe_execute_command()
815 esp->flags |= ESP_FLAG_DOING_SLOWCMD; in esp_maybe_execute_command()
818 if (!(esp->flags & ESP_FLAG_DOING_SLOWCMD)) { in esp_maybe_execute_command()
830 esp->select_state = ESP_SELECT_BASIC; in esp_maybe_execute_command()
832 esp->cmd_bytes_left = cmd->cmd_len; in esp_maybe_execute_command()
833 esp->cmd_bytes_ptr = &cmd->cmnd[0]; in esp_maybe_execute_command()
836 for (i = esp->msg_out_len - 1; in esp_maybe_execute_command()
838 esp->msg_out[i + 2] = esp->msg_out[i]; in esp_maybe_execute_command()
839 esp->msg_out[0] = ent->tag[0]; in esp_maybe_execute_command()
840 esp->msg_out[1] = ent->tag[1]; in esp_maybe_execute_command()
841 esp->msg_out_len += 2; in esp_maybe_execute_command()
845 esp->select_state = ESP_SELECT_MSGOUT; in esp_maybe_execute_command()
848 if (esp->rev == FASHME) in esp_maybe_execute_command()
852 esp_write_tgt_sync(esp, tgt); in esp_maybe_execute_command()
853 esp_write_tgt_config3(esp, tgt); in esp_maybe_execute_command()
855 val = (p - esp->command_block); in esp_maybe_execute_command()
858 printk("ESP: tgt[%d] lun[%d] scsi_cmd [ ", tgt, lun); in esp_maybe_execute_command()
864 esp_send_dma_cmd(esp, val, 16, start_cmd); in esp_maybe_execute_command()
867 static struct esp_cmd_entry *esp_get_ent(struct esp *esp) in esp_get_ent() argument
869 struct list_head *head = &esp->esp_cmd_pool; in esp_get_ent()
882 static void esp_put_ent(struct esp *esp, struct esp_cmd_entry *ent) in esp_put_ent() argument
884 list_add(&ent->list, &esp->esp_cmd_pool); in esp_put_ent()
887 static void esp_cmd_is_done(struct esp *esp, struct esp_cmd_entry *ent, in esp_cmd_is_done() argument
894 esp->active_cmd = NULL; in esp_cmd_is_done()
895 esp_unmap_dma(esp, cmd); in esp_cmd_is_done()
905 esp->ops->unmap_single(esp, ent->sense_dma, in esp_cmd_is_done()
922 printk("esp%d: tgt[%d] lun[%d] AUTO SENSE[ ", in esp_cmd_is_done()
923 esp->host->unique_id, tgt, lun); in esp_cmd_is_done()
933 esp_put_ent(esp, ent); in esp_cmd_is_done()
935 esp_maybe_execute_command(esp); in esp_cmd_is_done()
944 static void esp_event_queue_full(struct esp *esp, struct esp_cmd_entry *ent) in esp_event_queue_full() argument
955 struct esp *esp = shost_priv(dev->host); in esp_queuecommand_lck() local
959 ent = esp_get_ent(esp); in esp_queuecommand_lck()
970 list_add_tail(&ent->list, &esp->queued_cmds); in esp_queuecommand_lck()
972 esp_maybe_execute_command(esp); in esp_queuecommand_lck()
979 static int esp_check_gross_error(struct esp *esp) in DEF_SCSI_QCMD()
981 if (esp->sreg & ESP_STAT_SPAM) { in DEF_SCSI_QCMD()
988 shost_printk(KERN_ERR, esp->host, in DEF_SCSI_QCMD()
989 "Gross error sreg[%02x]\n", esp->sreg); in DEF_SCSI_QCMD()
996 static int esp_check_spur_intr(struct esp *esp) in esp_check_spur_intr() argument
998 switch (esp->rev) { in esp_check_spur_intr()
1004 esp->sreg &= ~ESP_STAT_INTR; in esp_check_spur_intr()
1008 if (!(esp->sreg & ESP_STAT_INTR)) { in esp_check_spur_intr()
1009 if (esp->ireg & ESP_INTR_SR) in esp_check_spur_intr()
1013 * ESP is not, the only possibility is a DMA error. in esp_check_spur_intr()
1015 if (!esp->ops->dma_error(esp)) { in esp_check_spur_intr()
1016 shost_printk(KERN_ERR, esp->host, in esp_check_spur_intr()
1018 esp->sreg); in esp_check_spur_intr()
1022 shost_printk(KERN_ERR, esp->host, "DMA error\n"); in esp_check_spur_intr()
1033 static void esp_schedule_reset(struct esp *esp) in esp_schedule_reset() argument
1037 esp->flags |= ESP_FLAG_RESETTING; in esp_schedule_reset()
1038 esp_event(esp, ESP_EVENT_RESET); in esp_schedule_reset()
1045 static struct esp_cmd_entry *esp_reconnect_with_tag(struct esp *esp, in esp_reconnect_with_tag() argument
1052 shost_printk(KERN_ERR, esp->host, in esp_reconnect_with_tag()
1060 if (esp->ops->irq_pending(esp)) in esp_reconnect_with_tag()
1064 shost_printk(KERN_ERR, esp->host, in esp_reconnect_with_tag()
1069 esp->sreg = esp_read8(ESP_STATUS); in esp_reconnect_with_tag()
1070 esp->ireg = esp_read8(ESP_INTRPT); in esp_reconnect_with_tag()
1073 i, esp->ireg, esp->sreg); in esp_reconnect_with_tag()
1075 if (esp->ireg & ESP_INTR_DC) { in esp_reconnect_with_tag()
1076 shost_printk(KERN_ERR, esp->host, in esp_reconnect_with_tag()
1081 if ((esp->sreg & ESP_STAT_PMASK) != ESP_MIP) { in esp_reconnect_with_tag()
1082 shost_printk(KERN_ERR, esp->host, in esp_reconnect_with_tag()
1083 "Reconnect, not MIP sreg[%02x].\n", esp->sreg); in esp_reconnect_with_tag()
1088 esp->command_block[0] = 0xff; in esp_reconnect_with_tag()
1089 esp->command_block[1] = 0xff; in esp_reconnect_with_tag()
1090 esp->ops->send_dma_cmd(esp, esp->command_block_dma, in esp_reconnect_with_tag()
1094 scsi_esp_cmd(esp, ESP_CMD_MOK); in esp_reconnect_with_tag()
1097 if (esp->ops->irq_pending(esp)) { in esp_reconnect_with_tag()
1098 esp->sreg = esp_read8(ESP_STATUS); in esp_reconnect_with_tag()
1099 esp->ireg = esp_read8(ESP_INTRPT); in esp_reconnect_with_tag()
1100 if (esp->ireg & ESP_INTR_FDONE) in esp_reconnect_with_tag()
1106 shost_printk(KERN_ERR, esp->host, "Reconnect IRQ2 timeout\n"); in esp_reconnect_with_tag()
1109 esp->ops->dma_drain(esp); in esp_reconnect_with_tag()
1110 esp->ops->dma_invalidate(esp); in esp_reconnect_with_tag()
1113 i, esp->ireg, esp->sreg, in esp_reconnect_with_tag()
1114 esp->command_block[0], in esp_reconnect_with_tag()
1115 esp->command_block[1]); in esp_reconnect_with_tag()
1117 if (esp->command_block[0] < SIMPLE_QUEUE_TAG || in esp_reconnect_with_tag()
1118 esp->command_block[0] > ORDERED_QUEUE_TAG) { in esp_reconnect_with_tag()
1119 shost_printk(KERN_ERR, esp->host, in esp_reconnect_with_tag()
1121 esp->command_block[0]); in esp_reconnect_with_tag()
1125 ent = lp->tagged_cmds[esp->command_block[1]]; in esp_reconnect_with_tag()
1127 shost_printk(KERN_ERR, esp->host, in esp_reconnect_with_tag()
1129 esp->command_block[1]); in esp_reconnect_with_tag()
1136 static int esp_reconnect(struct esp *esp) in esp_reconnect() argument
1144 BUG_ON(esp->active_cmd); in esp_reconnect()
1145 if (esp->rev == FASHME) { in esp_reconnect()
1149 target = esp->fifo[0]; in esp_reconnect()
1150 lun = esp->fifo[1] & 0x7; in esp_reconnect()
1157 * see the ID of the ESP and the one reconnecting target in esp_reconnect()
1160 if (!(bits & esp->scsi_id_mask)) in esp_reconnect()
1162 bits &= ~esp->scsi_id_mask; in esp_reconnect()
1169 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_reconnect()
1170 if (esp->rev == ESP100) { in esp_reconnect()
1180 scsi_esp_cmd(esp, ESP_CMD_NULL); in esp_reconnect()
1183 esp_write_tgt_sync(esp, target); in esp_reconnect()
1184 esp_write_tgt_config3(esp, target); in esp_reconnect()
1186 scsi_esp_cmd(esp, ESP_CMD_MOK); in esp_reconnect()
1188 if (esp->rev == FASHME) in esp_reconnect()
1192 tp = &esp->target[target]; in esp_reconnect()
1195 shost_printk(KERN_ERR, esp->host, in esp_reconnect()
1204 ent = esp_reconnect_with_tag(esp, lp); in esp_reconnect()
1209 esp->active_cmd = ent; in esp_reconnect()
1211 esp_event(esp, ESP_EVENT_CHECK_PHASE); in esp_reconnect()
1212 esp_restore_pointers(esp, ent); in esp_reconnect()
1213 esp->flags |= ESP_FLAG_QUICKIRQ_CHECK; in esp_reconnect()
1217 esp_schedule_reset(esp); in esp_reconnect()
1221 static int esp_finish_select(struct esp *esp) in esp_finish_select() argument
1227 esp->select_state = ESP_SELECT_NONE; in esp_finish_select()
1229 esp->seqreg = esp_read8(ESP_SSTEP) & ESP_STEP_VBITS; in esp_finish_select()
1230 ent = esp->active_cmd; in esp_finish_select()
1233 if (esp->ops->dma_error(esp)) { in esp_finish_select()
1237 esp_schedule_reset(esp); in esp_finish_select()
1238 esp_cmd_is_done(esp, ent, cmd, (DID_ERROR << 16)); in esp_finish_select()
1242 esp->ops->dma_invalidate(esp); in esp_finish_select()
1244 if (esp->ireg == (ESP_INTR_RSEL | ESP_INTR_FDONE)) { in esp_finish_select()
1245 struct esp_target_data *tp = &esp->target[cmd->device->id]; in esp_finish_select()
1252 esp_unmap_dma(esp, cmd); in esp_finish_select()
1255 esp->flags &= ~ESP_FLAG_DOING_SLOWCMD; in esp_finish_select()
1256 esp->cmd_bytes_ptr = NULL; in esp_finish_select()
1257 esp->cmd_bytes_left = 0; in esp_finish_select()
1259 esp->ops->unmap_single(esp, ent->sense_dma, in esp_finish_select()
1268 list_move(&ent->list, &esp->queued_cmds); in esp_finish_select()
1269 esp->active_cmd = NULL; in esp_finish_select()
1277 if (esp->ireg == ESP_INTR_DC) { in esp_finish_select()
1284 esp->target[dev->id].flags |= ESP_TGT_CHECK_NEGO; in esp_finish_select()
1286 scsi_esp_cmd(esp, ESP_CMD_ESEL); in esp_finish_select()
1287 esp_cmd_is_done(esp, ent, cmd, (DID_BAD_TARGET << 16)); in esp_finish_select()
1291 if (esp->ireg == (ESP_INTR_FDONE | ESP_INTR_BSERV)) { in esp_finish_select()
1295 if (esp->rev <= ESP236) { in esp_finish_select()
1298 scsi_esp_cmd(esp, ESP_CMD_NULL); in esp_finish_select()
1301 (!esp->prev_soff || in esp_finish_select()
1302 ((esp->sreg & ESP_STAT_PMASK) != ESP_DIP))) in esp_finish_select()
1303 esp_flush_fifo(esp); in esp_finish_select()
1310 esp_event(esp, ESP_EVENT_CHECK_PHASE); in esp_finish_select()
1314 shost_printk(KERN_INFO, esp->host, in esp_finish_select()
1315 "Unexpected selection completion ireg[%x]\n", esp->ireg); in esp_finish_select()
1316 esp_schedule_reset(esp); in esp_finish_select()
1320 static int esp_data_bytes_sent(struct esp *esp, struct esp_cmd_entry *ent, in esp_data_bytes_sent() argument
1326 if (esp->prev_cfg3 & ESP_CONFIG3_EWIDE) in esp_data_bytes_sent()
1330 if (!(esp->sreg & ESP_STAT_TCNT)) { in esp_data_bytes_sent()
1333 if (esp->rev == FASHME) in esp_data_bytes_sent()
1335 if (esp->rev == PCSCSI && (esp->config2 & ESP_CONFIG2_FENAB)) in esp_data_bytes_sent()
1339 bytes_sent = esp->data_dma_len; in esp_data_bytes_sent()
1341 bytes_sent -= esp->send_cmd_residual; in esp_data_bytes_sent()
1376 if (!esp->prev_soff) { in esp_data_bytes_sent()
1380 if (esp->rev == ESP100) { in esp_data_bytes_sent()
1394 esp->sreg = esp_read8(ESP_STATUS); in esp_data_bytes_sent()
1395 phase = esp->sreg & ESP_STAT_PMASK; in esp_data_bytes_sent()
1409 esp_flush_fifo(esp); in esp_data_bytes_sent()
1414 static void esp_setsync(struct esp *esp, struct esp_target_data *tp, in esp_setsync() argument
1424 esp_soff |= esp->radelay; in esp_setsync()
1425 if (esp->rev >= FAS236) { in esp_setsync()
1427 if (esp->rev >= FAS100A) in esp_setsync()
1431 if (esp->rev == FASHME) in esp_setsync()
1432 esp_soff &= ~esp->radelay; in esp_setsync()
1437 esp->prev_cfg3 = tp->esp_config3; in esp_setsync()
1438 esp_write8(esp->prev_cfg3, ESP_CFG3); in esp_setsync()
1442 tp->esp_period = esp->prev_stp = esp_stp; in esp_setsync()
1443 tp->esp_offset = esp->prev_soff = esp_soff; in esp_setsync()
1453 static void esp_msgin_reject(struct esp *esp) in esp_msgin_reject() argument
1455 struct esp_cmd_entry *ent = esp->active_cmd; in esp_msgin_reject()
1461 tp = &esp->target[tgt]; in esp_msgin_reject()
1468 scsi_esp_cmd(esp, ESP_CMD_RATN); in esp_msgin_reject()
1470 esp->msg_out_len = in esp_msgin_reject()
1471 spi_populate_sync_msg(&esp->msg_out[0], in esp_msgin_reject()
1475 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_msgin_reject()
1484 esp_setsync(esp, tp, 0, 0, 0, 0); in esp_msgin_reject()
1485 scsi_esp_cmd(esp, ESP_CMD_RATN); in esp_msgin_reject()
1489 shost_printk(KERN_INFO, esp->host, "Unexpected MESSAGE REJECT\n"); in esp_msgin_reject()
1490 esp_schedule_reset(esp); in esp_msgin_reject()
1493 static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp) in esp_msgin_sdtr() argument
1495 u8 period = esp->msg_in[3]; in esp_msgin_sdtr()
1496 u8 offset = esp->msg_in[4]; in esp_msgin_sdtr()
1508 if (period > esp->max_period) { in esp_msgin_sdtr()
1512 if (period < esp->min_period) in esp_msgin_sdtr()
1515 one_clock = esp->ccycle / 1000; in esp_msgin_sdtr()
1517 if (stp && esp->rev >= FAS236) { in esp_msgin_sdtr()
1525 esp_setsync(esp, tp, period, offset, stp, offset); in esp_msgin_sdtr()
1529 esp->msg_out[0] = MESSAGE_REJECT; in esp_msgin_sdtr()
1530 esp->msg_out_len = 1; in esp_msgin_sdtr()
1531 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_msgin_sdtr()
1537 esp->msg_out_len = in esp_msgin_sdtr()
1538 spi_populate_sync_msg(&esp->msg_out[0], in esp_msgin_sdtr()
1541 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_msgin_sdtr()
1544 static void esp_msgin_wdtr(struct esp *esp, struct esp_target_data *tp) in esp_msgin_wdtr() argument
1546 int size = 8 << esp->msg_in[3]; in esp_msgin_wdtr()
1549 if (esp->rev != FASHME) in esp_msgin_wdtr()
1567 esp->prev_cfg3 = cfg3; in esp_msgin_wdtr()
1576 scsi_esp_cmd(esp, ESP_CMD_RATN); in esp_msgin_wdtr()
1578 esp->msg_out_len = in esp_msgin_wdtr()
1579 spi_populate_sync_msg(&esp->msg_out[0], in esp_msgin_wdtr()
1583 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_msgin_wdtr()
1588 esp->msg_out[0] = MESSAGE_REJECT; in esp_msgin_wdtr()
1589 esp->msg_out_len = 1; in esp_msgin_wdtr()
1590 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_msgin_wdtr()
1593 static void esp_msgin_extended(struct esp *esp) in esp_msgin_extended() argument
1595 struct esp_cmd_entry *ent = esp->active_cmd; in esp_msgin_extended()
1600 tp = &esp->target[tgt]; in esp_msgin_extended()
1601 if (esp->msg_in[2] == EXTENDED_SDTR) { in esp_msgin_extended()
1602 esp_msgin_sdtr(esp, tp); in esp_msgin_extended()
1605 if (esp->msg_in[2] == EXTENDED_WDTR) { in esp_msgin_extended()
1606 esp_msgin_wdtr(esp, tp); in esp_msgin_extended()
1610 shost_printk(KERN_INFO, esp->host, in esp_msgin_extended()
1611 "Unexpected extended msg type %x\n", esp->msg_in[2]); in esp_msgin_extended()
1613 esp->msg_out[0] = MESSAGE_REJECT; in esp_msgin_extended()
1614 esp->msg_out_len = 1; in esp_msgin_extended()
1615 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_msgin_extended()
1621 static int esp_msgin_process(struct esp *esp) in esp_msgin_process() argument
1623 u8 msg0 = esp->msg_in[0]; in esp_msgin_process()
1624 int len = esp->msg_in_len; in esp_msgin_process()
1628 shost_printk(KERN_INFO, esp->host, in esp_msgin_process()
1637 if (len < esp->msg_in[1] + 2) in esp_msgin_process()
1639 esp_msgin_extended(esp); in esp_msgin_process()
1648 if (esp->msg_in[1] != 1) in esp_msgin_process()
1651 ent = esp->active_cmd; in esp_msgin_process()
1665 esp_restore_pointers(esp, esp->active_cmd); in esp_msgin_process()
1668 esp_save_pointers(esp, esp->active_cmd); in esp_msgin_process()
1673 struct esp_cmd_entry *ent = esp->active_cmd; in esp_msgin_process()
1676 esp_event(esp, ESP_EVENT_FREE_BUS); in esp_msgin_process()
1677 esp->flags |= ESP_FLAG_QUICKIRQ_CHECK; in esp_msgin_process()
1681 esp_msgin_reject(esp); in esp_msgin_process()
1686 esp->msg_out[0] = MESSAGE_REJECT; in esp_msgin_process()
1687 esp->msg_out_len = 1; in esp_msgin_process()
1688 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_msgin_process()
1693 static int esp_process_event(struct esp *esp) in esp_process_event() argument
1700 esp->event, esp->sreg & ESP_STAT_PMASK); in esp_process_event()
1701 switch (esp->event) { in esp_process_event()
1703 switch (esp->sreg & ESP_STAT_PMASK) { in esp_process_event()
1705 esp_event(esp, ESP_EVENT_DATA_OUT); in esp_process_event()
1708 esp_event(esp, ESP_EVENT_DATA_IN); in esp_process_event()
1711 esp_flush_fifo(esp); in esp_process_event()
1712 scsi_esp_cmd(esp, ESP_CMD_ICCSEQ); in esp_process_event()
1713 esp_event(esp, ESP_EVENT_STATUS); in esp_process_event()
1714 esp->flags |= ESP_FLAG_QUICKIRQ_CHECK; in esp_process_event()
1718 esp_event(esp, ESP_EVENT_MSGOUT); in esp_process_event()
1722 esp_event(esp, ESP_EVENT_MSGIN); in esp_process_event()
1726 esp_event(esp, ESP_EVENT_CMD_START); in esp_process_event()
1730 shost_printk(KERN_INFO, esp->host, in esp_process_event()
1732 esp->sreg); in esp_process_event()
1733 esp_schedule_reset(esp); in esp_process_event()
1743 struct esp_cmd_entry *ent = esp->active_cmd; in esp_process_event()
1748 if (esp->rev == ESP100) in esp_process_event()
1749 scsi_esp_cmd(esp, ESP_CMD_NULL); in esp_process_event()
1756 if (esp->ops->dma_length_limit) in esp_process_event()
1757 dma_len = esp->ops->dma_length_limit(esp, dma_addr, in esp_process_event()
1760 dma_len = esp_dma_length_limit(esp, dma_addr, dma_len); in esp_process_event()
1762 esp->data_dma_len = dma_len; in esp_process_event()
1765 shost_printk(KERN_ERR, esp->host, in esp_process_event()
1767 shost_printk(KERN_ERR, esp->host, in esp_process_event()
1771 esp_schedule_reset(esp); in esp_process_event()
1778 esp->ops->send_dma_cmd(esp, dma_addr, dma_len, dma_len, in esp_process_event()
1780 esp_event(esp, ESP_EVENT_DATA_DONE); in esp_process_event()
1784 struct esp_cmd_entry *ent = esp->active_cmd; in esp_process_event()
1788 if (esp->ops->dma_error(esp)) { in esp_process_event()
1789 shost_printk(KERN_INFO, esp->host, in esp_process_event()
1791 esp_schedule_reset(esp); in esp_process_event()
1798 esp->ops->dma_drain(esp); in esp_process_event()
1800 esp->ops->dma_invalidate(esp); in esp_process_event()
1802 if (esp->ireg != ESP_INTR_BSERV) { in esp_process_event()
1806 shost_printk(KERN_INFO, esp->host, in esp_process_event()
1808 esp_schedule_reset(esp); in esp_process_event()
1812 bytes_sent = esp_data_bytes_sent(esp, ent, cmd); in esp_process_event()
1819 esp_schedule_reset(esp); in esp_process_event()
1823 esp_advance_dma(esp, ent, cmd, bytes_sent); in esp_process_event()
1824 esp_event(esp, ESP_EVENT_CHECK_PHASE); in esp_process_event()
1829 struct esp_cmd_entry *ent = esp->active_cmd; in esp_process_event()
1831 if (esp->ireg & ESP_INTR_FDONE) { in esp_process_event()
1834 scsi_esp_cmd(esp, ESP_CMD_MOK); in esp_process_event()
1835 } else if (esp->ireg == ESP_INTR_BSERV) { in esp_process_event()
1838 esp_event(esp, ESP_EVENT_MSGIN); in esp_process_event()
1843 shost_printk(KERN_INFO, esp->host, in esp_process_event()
1846 esp_schedule_reset(esp); in esp_process_event()
1850 esp_event(esp, ESP_EVENT_FREE_BUS); in esp_process_event()
1851 esp->flags |= ESP_FLAG_QUICKIRQ_CHECK; in esp_process_event()
1855 struct esp_cmd_entry *ent = esp->active_cmd; in esp_process_event()
1860 scsi_esp_cmd(esp, ESP_CMD_ESEL); in esp_process_event()
1866 esp_event_queue_full(esp, ent); in esp_process_event()
1871 esp_autosense(esp, ent); in esp_process_event()
1873 esp_cmd_is_done(esp, ent, cmd, in esp_process_event()
1883 esp->active_cmd = NULL; in esp_process_event()
1884 esp_maybe_execute_command(esp); in esp_process_event()
1886 shost_printk(KERN_INFO, esp->host, in esp_process_event()
1889 esp_schedule_reset(esp); in esp_process_event()
1892 if (esp->active_cmd) in esp_process_event()
1893 esp->flags |= ESP_FLAG_QUICKIRQ_CHECK; in esp_process_event()
1897 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_process_event()
1901 printk("ESP: Sending message [ "); in esp_process_event()
1902 for (i = 0; i < esp->msg_out_len; i++) in esp_process_event()
1903 printk("%02x ", esp->msg_out[i]); in esp_process_event()
1907 if (esp->rev == FASHME) { in esp_process_event()
1911 for (i = 0; i < esp->msg_out_len; i++) { in esp_process_event()
1912 esp_write8(esp->msg_out[i], ESP_FDATA); in esp_process_event()
1915 scsi_esp_cmd(esp, ESP_CMD_TI); in esp_process_event()
1917 if (esp->msg_out_len == 1) { in esp_process_event()
1918 esp_write8(esp->msg_out[0], ESP_FDATA); in esp_process_event()
1919 scsi_esp_cmd(esp, ESP_CMD_TI); in esp_process_event()
1920 } else if (esp->flags & ESP_FLAG_USE_FIFO) { in esp_process_event()
1921 for (i = 0; i < esp->msg_out_len; i++) in esp_process_event()
1922 esp_write8(esp->msg_out[i], ESP_FDATA); in esp_process_event()
1923 scsi_esp_cmd(esp, ESP_CMD_TI); in esp_process_event()
1926 memcpy(esp->command_block, in esp_process_event()
1927 esp->msg_out, in esp_process_event()
1928 esp->msg_out_len); in esp_process_event()
1930 esp->ops->send_dma_cmd(esp, in esp_process_event()
1931 esp->command_block_dma, in esp_process_event()
1932 esp->msg_out_len, in esp_process_event()
1933 esp->msg_out_len, in esp_process_event()
1938 esp_event(esp, ESP_EVENT_MSGOUT_DONE); in esp_process_event()
1942 if (esp->rev == FASHME) { in esp_process_event()
1943 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_process_event()
1945 if (esp->msg_out_len > 1) in esp_process_event()
1946 esp->ops->dma_invalidate(esp); in esp_process_event()
1951 if (!(esp->ireg & ESP_INTR_DC)) in esp_process_event()
1952 scsi_esp_cmd(esp, ESP_CMD_NULL); in esp_process_event()
1955 esp->msg_out_len = 0; in esp_process_event()
1957 esp_event(esp, ESP_EVENT_CHECK_PHASE); in esp_process_event()
1960 if (esp->ireg & ESP_INTR_BSERV) { in esp_process_event()
1961 if (esp->rev == FASHME) { in esp_process_event()
1964 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_process_event()
1966 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_process_event()
1967 if (esp->rev == ESP100) in esp_process_event()
1968 scsi_esp_cmd(esp, ESP_CMD_NULL); in esp_process_event()
1970 scsi_esp_cmd(esp, ESP_CMD_TI); in esp_process_event()
1971 esp->flags |= ESP_FLAG_QUICKIRQ_CHECK; in esp_process_event()
1974 if (esp->ireg & ESP_INTR_FDONE) { in esp_process_event()
1977 if (esp->rev == FASHME) in esp_process_event()
1978 val = esp->fifo[0]; in esp_process_event()
1981 esp->msg_in[esp->msg_in_len++] = val; in esp_process_event()
1985 if (!esp_msgin_process(esp)) in esp_process_event()
1986 esp->msg_in_len = 0; in esp_process_event()
1988 if (esp->rev == FASHME) in esp_process_event()
1989 scsi_esp_cmd(esp, ESP_CMD_FLUSH); in esp_process_event()
1991 scsi_esp_cmd(esp, ESP_CMD_MOK); in esp_process_event()
1994 if (esp->event == ESP_EVENT_RESET) in esp_process_event()
1997 if (esp->event != ESP_EVENT_FREE_BUS) in esp_process_event()
1998 esp_event(esp, ESP_EVENT_CHECK_PHASE); in esp_process_event()
2000 shost_printk(KERN_INFO, esp->host, in esp_process_event()
2002 esp_schedule_reset(esp); in esp_process_event()
2007 memcpy(esp->command_block, esp->cmd_bytes_ptr, in esp_process_event()
2008 esp->cmd_bytes_left); in esp_process_event()
2009 esp_send_dma_cmd(esp, esp->cmd_bytes_left, 16, ESP_CMD_TI); in esp_process_event()
2010 esp_event(esp, ESP_EVENT_CMD_DONE); in esp_process_event()
2011 esp->flags |= ESP_FLAG_QUICKIRQ_CHECK; in esp_process_event()
2014 esp->ops->dma_invalidate(esp); in esp_process_event()
2015 if (esp->ireg & ESP_INTR_BSERV) { in esp_process_event()
2016 esp_event(esp, ESP_EVENT_CHECK_PHASE); in esp_process_event()
2019 esp_schedule_reset(esp); in esp_process_event()
2023 scsi_esp_cmd(esp, ESP_CMD_RS); in esp_process_event()
2027 shost_printk(KERN_INFO, esp->host, in esp_process_event()
2028 "Unexpected event %x, resetting\n", esp->event); in esp_process_event()
2029 esp_schedule_reset(esp); in esp_process_event()
2035 static void esp_reset_cleanup_one(struct esp *esp, struct esp_cmd_entry *ent) in esp_reset_cleanup_one() argument
2039 esp_unmap_dma(esp, cmd); in esp_reset_cleanup_one()
2044 esp->ops->unmap_single(esp, ent->sense_dma, in esp_reset_cleanup_one()
2051 esp_put_ent(esp, ent); in esp_reset_cleanup_one()
2062 static void esp_reset_cleanup(struct esp *esp) in esp_reset_cleanup() argument
2067 list_for_each_entry_safe(ent, tmp, &esp->queued_cmds, list) { in esp_reset_cleanup()
2073 esp_put_ent(esp, ent); in esp_reset_cleanup()
2076 list_for_each_entry_safe(ent, tmp, &esp->active_cmds, list) { in esp_reset_cleanup()
2077 if (ent == esp->active_cmd) in esp_reset_cleanup()
2078 esp->active_cmd = NULL; in esp_reset_cleanup()
2079 esp_reset_cleanup_one(esp, ent); in esp_reset_cleanup()
2082 BUG_ON(esp->active_cmd != NULL); in esp_reset_cleanup()
2086 struct esp_target_data *tp = &esp->target[i]; in esp_reset_cleanup()
2100 esp->flags &= ~ESP_FLAG_RESETTING; in esp_reset_cleanup()
2104 static void __esp_interrupt(struct esp *esp) in __esp_interrupt() argument
2112 esp->sreg = esp_read8(ESP_STATUS); in __esp_interrupt()
2113 esp->seqreg = esp_read8(ESP_SSTEP); in __esp_interrupt()
2114 esp->ireg = esp_read8(ESP_INTRPT); in __esp_interrupt()
2116 if (esp->flags & ESP_FLAG_RESETTING) { in __esp_interrupt()
2119 if (esp_check_gross_error(esp)) in __esp_interrupt()
2122 finish_reset = esp_check_spur_intr(esp); in __esp_interrupt()
2127 if (esp->ireg & ESP_INTR_SR) in __esp_interrupt()
2131 esp_reset_cleanup(esp); in __esp_interrupt()
2132 if (esp->eh_reset) { in __esp_interrupt()
2133 complete(esp->eh_reset); in __esp_interrupt()
2134 esp->eh_reset = NULL; in __esp_interrupt()
2139 phase = (esp->sreg & ESP_STAT_PMASK); in __esp_interrupt()
2140 if (esp->rev == FASHME) { in __esp_interrupt()
2142 esp->select_state == ESP_SELECT_NONE && in __esp_interrupt()
2143 esp->event != ESP_EVENT_STATUS && in __esp_interrupt()
2144 esp->event != ESP_EVENT_DATA_DONE) || in __esp_interrupt()
2145 (esp->ireg & ESP_INTR_RSEL)) { in __esp_interrupt()
2146 esp->sreg2 = esp_read8(ESP_STATUS2); in __esp_interrupt()
2147 if (!(esp->sreg2 & ESP_STAT2_FEMPTY) || in __esp_interrupt()
2148 (esp->sreg2 & ESP_STAT2_F1BYTE)) in __esp_interrupt()
2149 hme_read_fifo(esp); in __esp_interrupt()
2155 esp->sreg, esp->seqreg, esp->sreg2, esp->ireg); in __esp_interrupt()
2159 if (esp->ireg & (ESP_INTR_S | ESP_INTR_SATN | ESP_INTR_IC)) { in __esp_interrupt()
2160 shost_printk(KERN_INFO, esp->host, in __esp_interrupt()
2161 "unexpected IREG %02x\n", esp->ireg); in __esp_interrupt()
2162 if (esp->ireg & ESP_INTR_IC) in __esp_interrupt()
2163 esp_dump_cmd_log(esp); in __esp_interrupt()
2165 esp_schedule_reset(esp); in __esp_interrupt()
2167 if (esp->ireg & ESP_INTR_RSEL) { in __esp_interrupt()
2168 if (esp->active_cmd) in __esp_interrupt()
2169 (void) esp_finish_select(esp); in __esp_interrupt()
2170 intr_done = esp_reconnect(esp); in __esp_interrupt()
2173 if (esp->select_state != ESP_SELECT_NONE) in __esp_interrupt()
2174 intr_done = esp_finish_select(esp); in __esp_interrupt()
2178 intr_done = esp_process_event(esp); in __esp_interrupt()
2183 struct esp *esp = dev_id; in scsi_esp_intr() local
2187 spin_lock_irqsave(esp->host->host_lock, flags); in scsi_esp_intr()
2189 if (esp->ops->irq_pending(esp)) { in scsi_esp_intr()
2194 __esp_interrupt(esp); in scsi_esp_intr()
2195 if (!(esp->flags & ESP_FLAG_QUICKIRQ_CHECK)) in scsi_esp_intr()
2197 esp->flags &= ~ESP_FLAG_QUICKIRQ_CHECK; in scsi_esp_intr()
2200 if (esp->ops->irq_pending(esp)) in scsi_esp_intr()
2207 spin_unlock_irqrestore(esp->host->host_lock, flags); in scsi_esp_intr()
2213 static void esp_get_revision(struct esp *esp) in esp_get_revision() argument
2217 esp->config1 = (ESP_CONFIG1_PENABLE | (esp->scsi_id & 7)); in esp_get_revision()
2218 if (esp->config2 == 0) { in esp_get_revision()
2219 esp->config2 = (ESP_CONFIG2_SCSI2ENAB | ESP_CONFIG2_REGPARITY); in esp_get_revision()
2220 esp_write8(esp->config2, ESP_CFG2); in esp_get_revision()
2225 esp->config2 = 0; in esp_get_revision()
2232 esp->rev = ESP100; in esp_get_revision()
2237 esp_set_all_config3(esp, 5); in esp_get_revision()
2238 esp->prev_cfg3 = 5; in esp_get_revision()
2239 esp_write8(esp->config2, ESP_CFG2); in esp_get_revision()
2241 esp_write8(esp->prev_cfg3, ESP_CFG3); in esp_get_revision()
2248 esp->rev = ESP100A; in esp_get_revision()
2250 esp_set_all_config3(esp, 0); in esp_get_revision()
2251 esp->prev_cfg3 = 0; in esp_get_revision()
2252 esp_write8(esp->prev_cfg3, ESP_CFG3); in esp_get_revision()
2257 if (esp->cfact == 0 || esp->cfact > ESP_CCF_F5) { in esp_get_revision()
2258 esp->rev = FAST; in esp_get_revision()
2259 esp->sync_defp = SYNC_DEFP_FAST; in esp_get_revision()
2261 esp->rev = ESP236; in esp_get_revision()
2266 static void esp_init_swstate(struct esp *esp) in esp_init_swstate() argument
2270 INIT_LIST_HEAD(&esp->queued_cmds); in esp_init_swstate()
2271 INIT_LIST_HEAD(&esp->active_cmds); in esp_init_swstate()
2272 INIT_LIST_HEAD(&esp->esp_cmd_pool); in esp_init_swstate()
2279 esp->target[i].flags = 0; in esp_init_swstate()
2280 esp->target[i].nego_goal_period = 0; in esp_init_swstate()
2281 esp->target[i].nego_goal_offset = 0; in esp_init_swstate()
2282 esp->target[i].nego_goal_width = 0; in esp_init_swstate()
2283 esp->target[i].nego_goal_tags = 0; in esp_init_swstate()
2287 /* This places the ESP into a known state at boot time. */
2288 static void esp_bootup_reset(struct esp *esp) in esp_bootup_reset() argument
2293 esp->ops->reset_dma(esp); in esp_bootup_reset()
2295 /* Reset the ESP */ in esp_bootup_reset()
2296 esp_reset_esp(esp); in esp_bootup_reset()
2298 /* Reset the SCSI bus, but tell ESP not to generate an irq */ in esp_bootup_reset()
2303 scsi_esp_cmd(esp, ESP_CMD_RS); in esp_bootup_reset()
2306 esp_write8(esp->config1, ESP_CFG1); in esp_bootup_reset()
2312 static void esp_set_clock_params(struct esp *esp) in esp_set_clock_params() argument
2324 * going into the ESP on this machine. Any operation whose timing in esp_set_clock_params()
2331 * The ESP isn't very bright and will arbitrate for the bus and try in esp_set_clock_params()
2333 * ESP when it has taken too long to negotiate and that it should in esp_set_clock_params()
2347 * handle on this ESP. in esp_set_clock_params()
2349 fhz = esp->cfreq; in esp_set_clock_params()
2365 esp->cfact = (ccf == 8 ? 0 : ccf); in esp_set_clock_params()
2366 esp->cfreq = fhz; in esp_set_clock_params()
2367 esp->ccycle = ESP_HZ_TO_CYCLE(fhz); in esp_set_clock_params()
2368 esp->ctick = ESP_TICK(ccf, esp->ccycle); in esp_set_clock_params()
2369 esp->neg_defp = ESP_NEG_DEFP(fhz, ccf); in esp_set_clock_params()
2370 esp->sync_defp = SYNC_DEFP_SLOW; in esp_set_clock_params()
2386 int scsi_esp_register(struct esp *esp, struct device *dev) in scsi_esp_register() argument
2391 if (!esp->num_tags) in scsi_esp_register()
2392 esp->num_tags = ESP_DEFAULT_TAGS; in scsi_esp_register()
2393 esp->host->transportt = esp_transport_template; in scsi_esp_register()
2394 esp->host->max_lun = ESP_MAX_LUN; in scsi_esp_register()
2395 esp->host->cmd_per_lun = 2; in scsi_esp_register()
2396 esp->host->unique_id = instance; in scsi_esp_register()
2398 esp_set_clock_params(esp); in scsi_esp_register()
2400 esp_get_revision(esp); in scsi_esp_register()
2402 esp_init_swstate(esp); in scsi_esp_register()
2404 esp_bootup_reset(esp); in scsi_esp_register()
2406 dev_printk(KERN_INFO, dev, "esp%u: regs[%1p:%1p] irq[%u]\n", in scsi_esp_register()
2407 esp->host->unique_id, esp->regs, esp->dma_regs, in scsi_esp_register()
2408 esp->host->irq); in scsi_esp_register()
2410 "esp%u: is a %s, %u MHz (ccf=%u), SCSI ID %u\n", in scsi_esp_register()
2411 esp->host->unique_id, esp_chip_names[esp->rev], in scsi_esp_register()
2412 esp->cfreq / 1000000, esp->cfact, esp->scsi_id); in scsi_esp_register()
2417 err = scsi_add_host(esp->host, dev); in scsi_esp_register()
2423 scsi_scan_host(esp->host); in scsi_esp_register()
2429 void scsi_esp_unregister(struct esp *esp) in scsi_esp_unregister() argument
2431 scsi_remove_host(esp->host); in scsi_esp_unregister()
2437 struct esp *esp = shost_priv(dev_to_shost(&starget->dev)); in esp_target_alloc() local
2438 struct esp_target_data *tp = &esp->target[starget->id]; in esp_target_alloc()
2447 struct esp *esp = shost_priv(dev_to_shost(&starget->dev)); in esp_target_destroy() local
2448 struct esp_target_data *tp = &esp->target[starget->id]; in esp_target_destroy()
2455 struct esp *esp = shost_priv(dev->host); in esp_slave_alloc() local
2456 struct esp_target_data *tp = &esp->target[dev->id]; in esp_slave_alloc()
2464 spi_min_period(tp->starget) = esp->min_period; in esp_slave_alloc()
2467 if (esp->flags & ESP_FLAG_WIDE_CAPABLE) in esp_slave_alloc()
2477 struct esp *esp = shost_priv(dev->host); in esp_slave_configure() local
2478 struct esp_target_data *tp = &esp->target[dev->id]; in esp_slave_configure()
2481 scsi_change_queue_depth(dev, esp->num_tags); in esp_slave_configure()
2501 struct esp *esp = shost_priv(cmd->device->host); in esp_eh_abort_handler() local
2509 spin_lock_irqsave(esp->host->host_lock, flags); in esp_eh_abort_handler()
2510 shost_printk(KERN_ERR, esp->host, "Aborting command [%p:%02x]\n", in esp_eh_abort_handler()
2512 ent = esp->active_cmd; in esp_eh_abort_handler()
2514 shost_printk(KERN_ERR, esp->host, in esp_eh_abort_handler()
2517 list_for_each_entry(ent, &esp->queued_cmds, list) { in esp_eh_abort_handler()
2518 shost_printk(KERN_ERR, esp->host, "Queued command [%p:%02x]\n", in esp_eh_abort_handler()
2521 list_for_each_entry(ent, &esp->active_cmds, list) { in esp_eh_abort_handler()
2522 shost_printk(KERN_ERR, esp->host, " Active command [%p:%02x]\n", in esp_eh_abort_handler()
2525 esp_dump_cmd_log(esp); in esp_eh_abort_handler()
2526 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_abort_handler()
2528 spin_lock_irqsave(esp->host->host_lock, flags); in esp_eh_abort_handler()
2531 list_for_each_entry(tmp, &esp->queued_cmds, list) { in esp_eh_abort_handler()
2547 esp_put_ent(esp, ent); in esp_eh_abort_handler()
2554 ent = esp->active_cmd; in esp_eh_abort_handler()
2560 if (esp->msg_out_len) in esp_eh_abort_handler()
2566 esp->msg_out[0] = ABORT_TASK_SET; in esp_eh_abort_handler()
2567 esp->msg_out_len = 1; in esp_eh_abort_handler()
2570 scsi_esp_cmd(esp, ESP_CMD_SATN); in esp_eh_abort_handler()
2591 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_abort_handler()
2594 spin_lock_irqsave(esp->host->host_lock, flags); in esp_eh_abort_handler()
2596 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_abort_handler()
2604 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_abort_handler()
2612 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_abort_handler()
2618 struct esp *esp = shost_priv(cmd->device->host); in esp_eh_bus_reset_handler() local
2624 spin_lock_irqsave(esp->host->host_lock, flags); in esp_eh_bus_reset_handler()
2626 esp->eh_reset = &eh_reset; in esp_eh_bus_reset_handler()
2633 esp->flags |= ESP_FLAG_RESETTING; in esp_eh_bus_reset_handler()
2634 scsi_esp_cmd(esp, ESP_CMD_RS); in esp_eh_bus_reset_handler()
2636 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_bus_reset_handler()
2641 spin_lock_irqsave(esp->host->host_lock, flags); in esp_eh_bus_reset_handler()
2642 esp->eh_reset = NULL; in esp_eh_bus_reset_handler()
2643 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_bus_reset_handler()
2654 struct esp *esp = shost_priv(cmd->device->host); in esp_eh_host_reset_handler() local
2657 spin_lock_irqsave(esp->host->host_lock, flags); in esp_eh_host_reset_handler()
2658 esp_bootup_reset(esp); in esp_eh_host_reset_handler()
2659 esp_reset_cleanup(esp); in esp_eh_host_reset_handler()
2660 spin_unlock_irqrestore(esp->host->host_lock, flags); in esp_eh_host_reset_handler()
2669 return "esp"; in esp_info()
2674 .name = "esp",
2696 struct esp *esp = shost_priv(host); in esp_get_signalling() local
2699 if (esp->flags & ESP_FLAG_DIFFERENTIAL) in esp_get_signalling()
2710 struct esp *esp = shost_priv(host); in esp_set_offset() local
2711 struct esp_target_data *tp = &esp->target[target->id]; in esp_set_offset()
2713 if (esp->flags & ESP_FLAG_DISABLE_SYNC) in esp_set_offset()
2723 struct esp *esp = shost_priv(host); in esp_set_period() local
2724 struct esp_target_data *tp = &esp->target[target->id]; in esp_set_period()
2733 struct esp *esp = shost_priv(host); in esp_set_width() local
2734 struct esp_target_data *tp = &esp->target[target->id]; in esp_set_width()
2767 MODULE_DESCRIPTION("ESP SCSI driver core");
2774 "ESP scsi bus reset delay in seconds");
2778 "ESP bitmapped debugging message enable value:\n"