149ab747fSPaolo Bonzini /* 249ab747fSPaolo Bonzini * QEMU ESP/NCR53C9x emulation 349ab747fSPaolo Bonzini * 449ab747fSPaolo Bonzini * Copyright (c) 2005-2006 Fabrice Bellard 549ab747fSPaolo Bonzini * Copyright (c) 2012 Herve Poussineau 649ab747fSPaolo Bonzini * 749ab747fSPaolo Bonzini * Permission is hereby granted, free of charge, to any person obtaining a copy 849ab747fSPaolo Bonzini * of this software and associated documentation files (the "Software"), to deal 949ab747fSPaolo Bonzini * in the Software without restriction, including without limitation the rights 1049ab747fSPaolo Bonzini * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 1149ab747fSPaolo Bonzini * copies of the Software, and to permit persons to whom the Software is 1249ab747fSPaolo Bonzini * furnished to do so, subject to the following conditions: 1349ab747fSPaolo Bonzini * 1449ab747fSPaolo Bonzini * The above copyright notice and this permission notice shall be included in 1549ab747fSPaolo Bonzini * all copies or substantial portions of the Software. 1649ab747fSPaolo Bonzini * 1749ab747fSPaolo Bonzini * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1849ab747fSPaolo Bonzini * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1949ab747fSPaolo Bonzini * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 2049ab747fSPaolo Bonzini * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 2149ab747fSPaolo Bonzini * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 2249ab747fSPaolo Bonzini * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 2349ab747fSPaolo Bonzini * THE SOFTWARE. 2449ab747fSPaolo Bonzini */ 2549ab747fSPaolo Bonzini 26a4ab4792SPeter Maydell #include "qemu/osdep.h" 2749ab747fSPaolo Bonzini #include "hw/sysbus.h" 2849ab747fSPaolo Bonzini #include "hw/scsi/esp.h" 2949ab747fSPaolo Bonzini #include "trace.h" 3049ab747fSPaolo Bonzini #include "qemu/log.h" 31*0b8fa32fSMarkus Armbruster #include "qemu/module.h" 3249ab747fSPaolo Bonzini 3349ab747fSPaolo Bonzini /* 3449ab747fSPaolo Bonzini * On Sparc32, this is the ESP (NCR53C90) part of chip STP2000 (Master I/O), 3549ab747fSPaolo Bonzini * also produced as NCR89C100. See 3649ab747fSPaolo Bonzini * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt 3749ab747fSPaolo Bonzini * and 3849ab747fSPaolo Bonzini * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR53C9X.txt 3949ab747fSPaolo Bonzini */ 4049ab747fSPaolo Bonzini 4149ab747fSPaolo Bonzini static void esp_raise_irq(ESPState *s) 4249ab747fSPaolo Bonzini { 4349ab747fSPaolo Bonzini if (!(s->rregs[ESP_RSTAT] & STAT_INT)) { 4449ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_INT; 4549ab747fSPaolo Bonzini qemu_irq_raise(s->irq); 4649ab747fSPaolo Bonzini trace_esp_raise_irq(); 4749ab747fSPaolo Bonzini } 4849ab747fSPaolo Bonzini } 4949ab747fSPaolo Bonzini 5049ab747fSPaolo Bonzini static void esp_lower_irq(ESPState *s) 5149ab747fSPaolo Bonzini { 5249ab747fSPaolo Bonzini if (s->rregs[ESP_RSTAT] & STAT_INT) { 5349ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_INT; 5449ab747fSPaolo Bonzini qemu_irq_lower(s->irq); 5549ab747fSPaolo Bonzini trace_esp_lower_irq(); 5649ab747fSPaolo Bonzini } 5749ab747fSPaolo Bonzini } 5849ab747fSPaolo Bonzini 5949ab747fSPaolo Bonzini void esp_dma_enable(ESPState *s, int irq, int level) 6049ab747fSPaolo Bonzini { 6149ab747fSPaolo Bonzini if (level) { 6249ab747fSPaolo Bonzini s->dma_enabled = 1; 6349ab747fSPaolo Bonzini trace_esp_dma_enable(); 6449ab747fSPaolo Bonzini if (s->dma_cb) { 6549ab747fSPaolo Bonzini s->dma_cb(s); 6649ab747fSPaolo Bonzini s->dma_cb = NULL; 6749ab747fSPaolo Bonzini } 6849ab747fSPaolo Bonzini } else { 6949ab747fSPaolo Bonzini trace_esp_dma_disable(); 7049ab747fSPaolo Bonzini s->dma_enabled = 0; 7149ab747fSPaolo Bonzini } 7249ab747fSPaolo Bonzini } 7349ab747fSPaolo Bonzini 7449ab747fSPaolo Bonzini void esp_request_cancelled(SCSIRequest *req) 7549ab747fSPaolo Bonzini { 7649ab747fSPaolo Bonzini ESPState *s = req->hba_private; 7749ab747fSPaolo Bonzini 7849ab747fSPaolo Bonzini if (req == s->current_req) { 7949ab747fSPaolo Bonzini scsi_req_unref(s->current_req); 8049ab747fSPaolo Bonzini s->current_req = NULL; 8149ab747fSPaolo Bonzini s->current_dev = NULL; 8249ab747fSPaolo Bonzini } 8349ab747fSPaolo Bonzini } 8449ab747fSPaolo Bonzini 856c1fef6bSPrasad J Pandit static uint32_t get_cmd(ESPState *s, uint8_t *buf, uint8_t buflen) 8649ab747fSPaolo Bonzini { 8749ab747fSPaolo Bonzini uint32_t dmalen; 8849ab747fSPaolo Bonzini int target; 8949ab747fSPaolo Bonzini 9049ab747fSPaolo Bonzini target = s->wregs[ESP_WBUSID] & BUSID_DID; 9149ab747fSPaolo Bonzini if (s->dma) { 9249ab747fSPaolo Bonzini dmalen = s->rregs[ESP_TCLO]; 9349ab747fSPaolo Bonzini dmalen |= s->rregs[ESP_TCMID] << 8; 9449ab747fSPaolo Bonzini dmalen |= s->rregs[ESP_TCHI] << 16; 956c1fef6bSPrasad J Pandit if (dmalen > buflen) { 966c1fef6bSPrasad J Pandit return 0; 976c1fef6bSPrasad J Pandit } 9849ab747fSPaolo Bonzini s->dma_memory_read(s->dma_opaque, buf, dmalen); 9949ab747fSPaolo Bonzini } else { 10049ab747fSPaolo Bonzini dmalen = s->ti_size; 101d3cdc491SPrasad J Pandit if (dmalen > TI_BUFSZ) { 102d3cdc491SPrasad J Pandit return 0; 103d3cdc491SPrasad J Pandit } 10449ab747fSPaolo Bonzini memcpy(buf, s->ti_buf, dmalen); 10549ab747fSPaolo Bonzini buf[0] = buf[2] >> 5; 10649ab747fSPaolo Bonzini } 10749ab747fSPaolo Bonzini trace_esp_get_cmd(dmalen, target); 10849ab747fSPaolo Bonzini 10949ab747fSPaolo Bonzini s->ti_size = 0; 11049ab747fSPaolo Bonzini s->ti_rptr = 0; 11149ab747fSPaolo Bonzini s->ti_wptr = 0; 11249ab747fSPaolo Bonzini 11349ab747fSPaolo Bonzini if (s->current_req) { 11449ab747fSPaolo Bonzini /* Started a new command before the old one finished. Cancel it. */ 11549ab747fSPaolo Bonzini scsi_req_cancel(s->current_req); 11649ab747fSPaolo Bonzini s->async_len = 0; 11749ab747fSPaolo Bonzini } 11849ab747fSPaolo Bonzini 11949ab747fSPaolo Bonzini s->current_dev = scsi_device_find(&s->bus, 0, target, 0); 12049ab747fSPaolo Bonzini if (!s->current_dev) { 12149ab747fSPaolo Bonzini // No such drive 12249ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = 0; 12349ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_DC; 12449ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_0; 12549ab747fSPaolo Bonzini esp_raise_irq(s); 12649ab747fSPaolo Bonzini return 0; 12749ab747fSPaolo Bonzini } 12849ab747fSPaolo Bonzini return dmalen; 12949ab747fSPaolo Bonzini } 13049ab747fSPaolo Bonzini 13149ab747fSPaolo Bonzini static void do_busid_cmd(ESPState *s, uint8_t *buf, uint8_t busid) 13249ab747fSPaolo Bonzini { 13349ab747fSPaolo Bonzini int32_t datalen; 13449ab747fSPaolo Bonzini int lun; 13549ab747fSPaolo Bonzini SCSIDevice *current_lun; 13649ab747fSPaolo Bonzini 13749ab747fSPaolo Bonzini trace_esp_do_busid_cmd(busid); 13849ab747fSPaolo Bonzini lun = busid & 7; 13949ab747fSPaolo Bonzini current_lun = scsi_device_find(&s->bus, 0, s->current_dev->id, lun); 14049ab747fSPaolo Bonzini s->current_req = scsi_req_new(current_lun, 0, lun, buf, s); 14149ab747fSPaolo Bonzini datalen = scsi_req_enqueue(s->current_req); 14249ab747fSPaolo Bonzini s->ti_size = datalen; 14349ab747fSPaolo Bonzini if (datalen != 0) { 14449ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC; 14549ab747fSPaolo Bonzini s->dma_left = 0; 14649ab747fSPaolo Bonzini s->dma_counter = 0; 14749ab747fSPaolo Bonzini if (datalen > 0) { 14849ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_DI; 14949ab747fSPaolo Bonzini } else { 15049ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_DO; 15149ab747fSPaolo Bonzini } 15249ab747fSPaolo Bonzini scsi_req_continue(s->current_req); 15349ab747fSPaolo Bonzini } 15449ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 15549ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 15649ab747fSPaolo Bonzini esp_raise_irq(s); 15749ab747fSPaolo Bonzini } 15849ab747fSPaolo Bonzini 15949ab747fSPaolo Bonzini static void do_cmd(ESPState *s, uint8_t *buf) 16049ab747fSPaolo Bonzini { 16149ab747fSPaolo Bonzini uint8_t busid = buf[0]; 16249ab747fSPaolo Bonzini 16349ab747fSPaolo Bonzini do_busid_cmd(s, &buf[1], busid); 16449ab747fSPaolo Bonzini } 16549ab747fSPaolo Bonzini 16649ab747fSPaolo Bonzini static void handle_satn(ESPState *s) 16749ab747fSPaolo Bonzini { 16849ab747fSPaolo Bonzini uint8_t buf[32]; 16949ab747fSPaolo Bonzini int len; 17049ab747fSPaolo Bonzini 17149ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 17249ab747fSPaolo Bonzini s->dma_cb = handle_satn; 17349ab747fSPaolo Bonzini return; 17449ab747fSPaolo Bonzini } 1756c1fef6bSPrasad J Pandit len = get_cmd(s, buf, sizeof(buf)); 17649ab747fSPaolo Bonzini if (len) 17749ab747fSPaolo Bonzini do_cmd(s, buf); 17849ab747fSPaolo Bonzini } 17949ab747fSPaolo Bonzini 18049ab747fSPaolo Bonzini static void handle_s_without_atn(ESPState *s) 18149ab747fSPaolo Bonzini { 18249ab747fSPaolo Bonzini uint8_t buf[32]; 18349ab747fSPaolo Bonzini int len; 18449ab747fSPaolo Bonzini 18549ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 18649ab747fSPaolo Bonzini s->dma_cb = handle_s_without_atn; 18749ab747fSPaolo Bonzini return; 18849ab747fSPaolo Bonzini } 1896c1fef6bSPrasad J Pandit len = get_cmd(s, buf, sizeof(buf)); 19049ab747fSPaolo Bonzini if (len) { 19149ab747fSPaolo Bonzini do_busid_cmd(s, buf, 0); 19249ab747fSPaolo Bonzini } 19349ab747fSPaolo Bonzini } 19449ab747fSPaolo Bonzini 19549ab747fSPaolo Bonzini static void handle_satn_stop(ESPState *s) 19649ab747fSPaolo Bonzini { 19749ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 19849ab747fSPaolo Bonzini s->dma_cb = handle_satn_stop; 19949ab747fSPaolo Bonzini return; 20049ab747fSPaolo Bonzini } 2016c1fef6bSPrasad J Pandit s->cmdlen = get_cmd(s, s->cmdbuf, sizeof(s->cmdbuf)); 20249ab747fSPaolo Bonzini if (s->cmdlen) { 20349ab747fSPaolo Bonzini trace_esp_handle_satn_stop(s->cmdlen); 20449ab747fSPaolo Bonzini s->do_cmd = 1; 20549ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC | STAT_CD; 20649ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 20749ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 20849ab747fSPaolo Bonzini esp_raise_irq(s); 20949ab747fSPaolo Bonzini } 21049ab747fSPaolo Bonzini } 21149ab747fSPaolo Bonzini 21249ab747fSPaolo Bonzini static void write_response(ESPState *s) 21349ab747fSPaolo Bonzini { 21449ab747fSPaolo Bonzini trace_esp_write_response(s->status); 21549ab747fSPaolo Bonzini s->ti_buf[0] = s->status; 21649ab747fSPaolo Bonzini s->ti_buf[1] = 0; 21749ab747fSPaolo Bonzini if (s->dma) { 21849ab747fSPaolo Bonzini s->dma_memory_write(s->dma_opaque, s->ti_buf, 2); 21949ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC | STAT_ST; 22049ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 22149ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 22249ab747fSPaolo Bonzini } else { 22349ab747fSPaolo Bonzini s->ti_size = 2; 22449ab747fSPaolo Bonzini s->ti_rptr = 0; 225d020aa50SPaolo Bonzini s->ti_wptr = 2; 22649ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 2; 22749ab747fSPaolo Bonzini } 22849ab747fSPaolo Bonzini esp_raise_irq(s); 22949ab747fSPaolo Bonzini } 23049ab747fSPaolo Bonzini 23149ab747fSPaolo Bonzini static void esp_dma_done(ESPState *s) 23249ab747fSPaolo Bonzini { 23349ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_TC; 23449ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS; 23549ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 23649ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 0; 23749ab747fSPaolo Bonzini s->rregs[ESP_TCLO] = 0; 23849ab747fSPaolo Bonzini s->rregs[ESP_TCMID] = 0; 23949ab747fSPaolo Bonzini s->rregs[ESP_TCHI] = 0; 24049ab747fSPaolo Bonzini esp_raise_irq(s); 24149ab747fSPaolo Bonzini } 24249ab747fSPaolo Bonzini 24349ab747fSPaolo Bonzini static void esp_do_dma(ESPState *s) 24449ab747fSPaolo Bonzini { 24549ab747fSPaolo Bonzini uint32_t len; 24649ab747fSPaolo Bonzini int to_device; 24749ab747fSPaolo Bonzini 24849ab747fSPaolo Bonzini len = s->dma_left; 24949ab747fSPaolo Bonzini if (s->do_cmd) { 25049ab747fSPaolo Bonzini trace_esp_do_dma(s->cmdlen, len); 251926cde5fSPrasad J Pandit assert (s->cmdlen <= sizeof(s->cmdbuf) && 252926cde5fSPrasad J Pandit len <= sizeof(s->cmdbuf) - s->cmdlen); 25349ab747fSPaolo Bonzini s->dma_memory_read(s->dma_opaque, &s->cmdbuf[s->cmdlen], len); 25449ab747fSPaolo Bonzini return; 25549ab747fSPaolo Bonzini } 25649ab747fSPaolo Bonzini if (s->async_len == 0) { 25749ab747fSPaolo Bonzini /* Defer until data is available. */ 25849ab747fSPaolo Bonzini return; 25949ab747fSPaolo Bonzini } 26049ab747fSPaolo Bonzini if (len > s->async_len) { 26149ab747fSPaolo Bonzini len = s->async_len; 26249ab747fSPaolo Bonzini } 2637f0b6e11SPaolo Bonzini to_device = (s->ti_size < 0); 26449ab747fSPaolo Bonzini if (to_device) { 26549ab747fSPaolo Bonzini s->dma_memory_read(s->dma_opaque, s->async_buf, len); 26649ab747fSPaolo Bonzini } else { 26749ab747fSPaolo Bonzini s->dma_memory_write(s->dma_opaque, s->async_buf, len); 26849ab747fSPaolo Bonzini } 26949ab747fSPaolo Bonzini s->dma_left -= len; 27049ab747fSPaolo Bonzini s->async_buf += len; 27149ab747fSPaolo Bonzini s->async_len -= len; 27249ab747fSPaolo Bonzini if (to_device) 27349ab747fSPaolo Bonzini s->ti_size += len; 27449ab747fSPaolo Bonzini else 27549ab747fSPaolo Bonzini s->ti_size -= len; 27649ab747fSPaolo Bonzini if (s->async_len == 0) { 27749ab747fSPaolo Bonzini scsi_req_continue(s->current_req); 27849ab747fSPaolo Bonzini /* If there is still data to be read from the device then 27949ab747fSPaolo Bonzini complete the DMA operation immediately. Otherwise defer 28049ab747fSPaolo Bonzini until the scsi layer has completed. */ 28149ab747fSPaolo Bonzini if (to_device || s->dma_left != 0 || s->ti_size == 0) { 28249ab747fSPaolo Bonzini return; 28349ab747fSPaolo Bonzini } 28449ab747fSPaolo Bonzini } 28549ab747fSPaolo Bonzini 28649ab747fSPaolo Bonzini /* Partially filled a scsi buffer. Complete immediately. */ 28749ab747fSPaolo Bonzini esp_dma_done(s); 28849ab747fSPaolo Bonzini } 28949ab747fSPaolo Bonzini 290ea84a442SGuenter Roeck static void esp_report_command_complete(ESPState *s, uint32_t status) 29149ab747fSPaolo Bonzini { 29249ab747fSPaolo Bonzini trace_esp_command_complete(); 29349ab747fSPaolo Bonzini if (s->ti_size != 0) { 29449ab747fSPaolo Bonzini trace_esp_command_complete_unexpected(); 29549ab747fSPaolo Bonzini } 29649ab747fSPaolo Bonzini s->ti_size = 0; 29749ab747fSPaolo Bonzini s->dma_left = 0; 29849ab747fSPaolo Bonzini s->async_len = 0; 29949ab747fSPaolo Bonzini if (status) { 30049ab747fSPaolo Bonzini trace_esp_command_complete_fail(); 30149ab747fSPaolo Bonzini } 30249ab747fSPaolo Bonzini s->status = status; 30349ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_ST; 30449ab747fSPaolo Bonzini esp_dma_done(s); 30549ab747fSPaolo Bonzini if (s->current_req) { 30649ab747fSPaolo Bonzini scsi_req_unref(s->current_req); 30749ab747fSPaolo Bonzini s->current_req = NULL; 30849ab747fSPaolo Bonzini s->current_dev = NULL; 30949ab747fSPaolo Bonzini } 31049ab747fSPaolo Bonzini } 31149ab747fSPaolo Bonzini 312ea84a442SGuenter Roeck void esp_command_complete(SCSIRequest *req, uint32_t status, 313ea84a442SGuenter Roeck size_t resid) 314ea84a442SGuenter Roeck { 315ea84a442SGuenter Roeck ESPState *s = req->hba_private; 316ea84a442SGuenter Roeck 317ea84a442SGuenter Roeck if (s->rregs[ESP_RSTAT] & STAT_INT) { 318ea84a442SGuenter Roeck /* Defer handling command complete until the previous 319ea84a442SGuenter Roeck * interrupt has been handled. 320ea84a442SGuenter Roeck */ 321ea84a442SGuenter Roeck trace_esp_command_complete_deferred(); 322ea84a442SGuenter Roeck s->deferred_status = status; 323ea84a442SGuenter Roeck s->deferred_complete = true; 324ea84a442SGuenter Roeck return; 325ea84a442SGuenter Roeck } 326ea84a442SGuenter Roeck esp_report_command_complete(s, status); 327ea84a442SGuenter Roeck } 328ea84a442SGuenter Roeck 32949ab747fSPaolo Bonzini void esp_transfer_data(SCSIRequest *req, uint32_t len) 33049ab747fSPaolo Bonzini { 33149ab747fSPaolo Bonzini ESPState *s = req->hba_private; 33249ab747fSPaolo Bonzini 3337f0b6e11SPaolo Bonzini assert(!s->do_cmd); 33449ab747fSPaolo Bonzini trace_esp_transfer_data(s->dma_left, s->ti_size); 33549ab747fSPaolo Bonzini s->async_len = len; 33649ab747fSPaolo Bonzini s->async_buf = scsi_req_get_buf(req); 33749ab747fSPaolo Bonzini if (s->dma_left) { 33849ab747fSPaolo Bonzini esp_do_dma(s); 33949ab747fSPaolo Bonzini } else if (s->dma_counter != 0 && s->ti_size <= 0) { 34049ab747fSPaolo Bonzini /* If this was the last part of a DMA transfer then the 34149ab747fSPaolo Bonzini completion interrupt is deferred to here. */ 34249ab747fSPaolo Bonzini esp_dma_done(s); 34349ab747fSPaolo Bonzini } 34449ab747fSPaolo Bonzini } 34549ab747fSPaolo Bonzini 34649ab747fSPaolo Bonzini static void handle_ti(ESPState *s) 34749ab747fSPaolo Bonzini { 34849ab747fSPaolo Bonzini uint32_t dmalen, minlen; 34949ab747fSPaolo Bonzini 35049ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 35149ab747fSPaolo Bonzini s->dma_cb = handle_ti; 35249ab747fSPaolo Bonzini return; 35349ab747fSPaolo Bonzini } 35449ab747fSPaolo Bonzini 35549ab747fSPaolo Bonzini dmalen = s->rregs[ESP_TCLO]; 35649ab747fSPaolo Bonzini dmalen |= s->rregs[ESP_TCMID] << 8; 35749ab747fSPaolo Bonzini dmalen |= s->rregs[ESP_TCHI] << 16; 35849ab747fSPaolo Bonzini if (dmalen==0) { 35949ab747fSPaolo Bonzini dmalen=0x10000; 36049ab747fSPaolo Bonzini } 36149ab747fSPaolo Bonzini s->dma_counter = dmalen; 36249ab747fSPaolo Bonzini 36349ab747fSPaolo Bonzini if (s->do_cmd) 364926cde5fSPrasad J Pandit minlen = (dmalen < ESP_CMDBUF_SZ) ? dmalen : ESP_CMDBUF_SZ; 36549ab747fSPaolo Bonzini else if (s->ti_size < 0) 36649ab747fSPaolo Bonzini minlen = (dmalen < -s->ti_size) ? dmalen : -s->ti_size; 36749ab747fSPaolo Bonzini else 36849ab747fSPaolo Bonzini minlen = (dmalen < s->ti_size) ? dmalen : s->ti_size; 36949ab747fSPaolo Bonzini trace_esp_handle_ti(minlen); 37049ab747fSPaolo Bonzini if (s->dma) { 37149ab747fSPaolo Bonzini s->dma_left = minlen; 37249ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_TC; 37349ab747fSPaolo Bonzini esp_do_dma(s); 3747f0b6e11SPaolo Bonzini } 3757f0b6e11SPaolo Bonzini if (s->do_cmd) { 37649ab747fSPaolo Bonzini trace_esp_handle_ti_cmd(s->cmdlen); 37749ab747fSPaolo Bonzini s->ti_size = 0; 37849ab747fSPaolo Bonzini s->cmdlen = 0; 37949ab747fSPaolo Bonzini s->do_cmd = 0; 38049ab747fSPaolo Bonzini do_cmd(s, s->cmdbuf); 38149ab747fSPaolo Bonzini } 38249ab747fSPaolo Bonzini } 38349ab747fSPaolo Bonzini 38449ab747fSPaolo Bonzini void esp_hard_reset(ESPState *s) 38549ab747fSPaolo Bonzini { 38649ab747fSPaolo Bonzini memset(s->rregs, 0, ESP_REGS); 38749ab747fSPaolo Bonzini memset(s->wregs, 0, ESP_REGS); 388c9cf45c1SHannes Reinecke s->tchi_written = 0; 38949ab747fSPaolo Bonzini s->ti_size = 0; 39049ab747fSPaolo Bonzini s->ti_rptr = 0; 39149ab747fSPaolo Bonzini s->ti_wptr = 0; 39249ab747fSPaolo Bonzini s->dma = 0; 39349ab747fSPaolo Bonzini s->do_cmd = 0; 39449ab747fSPaolo Bonzini s->dma_cb = NULL; 39549ab747fSPaolo Bonzini 39649ab747fSPaolo Bonzini s->rregs[ESP_CFG1] = 7; 39749ab747fSPaolo Bonzini } 39849ab747fSPaolo Bonzini 39949ab747fSPaolo Bonzini static void esp_soft_reset(ESPState *s) 40049ab747fSPaolo Bonzini { 40149ab747fSPaolo Bonzini qemu_irq_lower(s->irq); 40249ab747fSPaolo Bonzini esp_hard_reset(s); 40349ab747fSPaolo Bonzini } 40449ab747fSPaolo Bonzini 40549ab747fSPaolo Bonzini static void parent_esp_reset(ESPState *s, int irq, int level) 40649ab747fSPaolo Bonzini { 40749ab747fSPaolo Bonzini if (level) { 40849ab747fSPaolo Bonzini esp_soft_reset(s); 40949ab747fSPaolo Bonzini } 41049ab747fSPaolo Bonzini } 41149ab747fSPaolo Bonzini 41249ab747fSPaolo Bonzini uint64_t esp_reg_read(ESPState *s, uint32_t saddr) 41349ab747fSPaolo Bonzini { 41449ab747fSPaolo Bonzini uint32_t old_val; 41549ab747fSPaolo Bonzini 41649ab747fSPaolo Bonzini trace_esp_mem_readb(saddr, s->rregs[saddr]); 41749ab747fSPaolo Bonzini switch (saddr) { 41849ab747fSPaolo Bonzini case ESP_FIFO: 41949ab747fSPaolo Bonzini if ((s->rregs[ESP_RSTAT] & STAT_PIO_MASK) == 0) { 42049ab747fSPaolo Bonzini /* Data out. */ 421ff589551SPrasad J Pandit qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n"); 42249ab747fSPaolo Bonzini s->rregs[ESP_FIFO] = 0; 423ff589551SPrasad J Pandit } else if (s->ti_rptr < s->ti_wptr) { 424ff589551SPrasad J Pandit s->ti_size--; 42549ab747fSPaolo Bonzini s->rregs[ESP_FIFO] = s->ti_buf[s->ti_rptr++]; 42649ab747fSPaolo Bonzini } 427ff589551SPrasad J Pandit if (s->ti_rptr == s->ti_wptr) { 42849ab747fSPaolo Bonzini s->ti_rptr = 0; 42949ab747fSPaolo Bonzini s->ti_wptr = 0; 43049ab747fSPaolo Bonzini } 43149ab747fSPaolo Bonzini break; 43249ab747fSPaolo Bonzini case ESP_RINTR: 43349ab747fSPaolo Bonzini /* Clear sequence step, interrupt register and all status bits 43449ab747fSPaolo Bonzini except TC */ 43549ab747fSPaolo Bonzini old_val = s->rregs[ESP_RINTR]; 43649ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = 0; 43749ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_TC; 43849ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 43949ab747fSPaolo Bonzini esp_lower_irq(s); 440ea84a442SGuenter Roeck if (s->deferred_complete) { 441ea84a442SGuenter Roeck esp_report_command_complete(s, s->deferred_status); 442ea84a442SGuenter Roeck s->deferred_complete = false; 443ea84a442SGuenter Roeck } 44449ab747fSPaolo Bonzini return old_val; 445c9cf45c1SHannes Reinecke case ESP_TCHI: 446c9cf45c1SHannes Reinecke /* Return the unique id if the value has never been written */ 447c9cf45c1SHannes Reinecke if (!s->tchi_written) { 448c9cf45c1SHannes Reinecke return s->chip_id; 449c9cf45c1SHannes Reinecke } 45049ab747fSPaolo Bonzini default: 45149ab747fSPaolo Bonzini break; 45249ab747fSPaolo Bonzini } 45349ab747fSPaolo Bonzini return s->rregs[saddr]; 45449ab747fSPaolo Bonzini } 45549ab747fSPaolo Bonzini 45649ab747fSPaolo Bonzini void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val) 45749ab747fSPaolo Bonzini { 45849ab747fSPaolo Bonzini trace_esp_mem_writeb(saddr, s->wregs[saddr], val); 45949ab747fSPaolo Bonzini switch (saddr) { 460c9cf45c1SHannes Reinecke case ESP_TCHI: 461c9cf45c1SHannes Reinecke s->tchi_written = true; 462c9cf45c1SHannes Reinecke /* fall through */ 46349ab747fSPaolo Bonzini case ESP_TCLO: 46449ab747fSPaolo Bonzini case ESP_TCMID: 46549ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_TC; 46649ab747fSPaolo Bonzini break; 46749ab747fSPaolo Bonzini case ESP_FIFO: 46849ab747fSPaolo Bonzini if (s->do_cmd) { 469926cde5fSPrasad J Pandit if (s->cmdlen < ESP_CMDBUF_SZ) { 47049ab747fSPaolo Bonzini s->cmdbuf[s->cmdlen++] = val & 0xff; 471c98c6c10SPrasad J Pandit } else { 472c98c6c10SPrasad J Pandit trace_esp_error_fifo_overrun(); 473c98c6c10SPrasad J Pandit } 474ff589551SPrasad J Pandit } else if (s->ti_wptr == TI_BUFSZ - 1) { 47549ab747fSPaolo Bonzini trace_esp_error_fifo_overrun(); 47649ab747fSPaolo Bonzini } else { 47749ab747fSPaolo Bonzini s->ti_size++; 47849ab747fSPaolo Bonzini s->ti_buf[s->ti_wptr++] = val & 0xff; 47949ab747fSPaolo Bonzini } 48049ab747fSPaolo Bonzini break; 48149ab747fSPaolo Bonzini case ESP_CMD: 48249ab747fSPaolo Bonzini s->rregs[saddr] = val; 48349ab747fSPaolo Bonzini if (val & CMD_DMA) { 48449ab747fSPaolo Bonzini s->dma = 1; 48549ab747fSPaolo Bonzini /* Reload DMA counter. */ 48649ab747fSPaolo Bonzini s->rregs[ESP_TCLO] = s->wregs[ESP_TCLO]; 48749ab747fSPaolo Bonzini s->rregs[ESP_TCMID] = s->wregs[ESP_TCMID]; 48849ab747fSPaolo Bonzini s->rregs[ESP_TCHI] = s->wregs[ESP_TCHI]; 48949ab747fSPaolo Bonzini } else { 49049ab747fSPaolo Bonzini s->dma = 0; 49149ab747fSPaolo Bonzini } 49249ab747fSPaolo Bonzini switch(val & CMD_CMD) { 49349ab747fSPaolo Bonzini case CMD_NOP: 49449ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_nop(val); 49549ab747fSPaolo Bonzini break; 49649ab747fSPaolo Bonzini case CMD_FLUSH: 49749ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_flush(val); 49849ab747fSPaolo Bonzini //s->ti_size = 0; 49949ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_FC; 50049ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 50149ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 0; 50249ab747fSPaolo Bonzini break; 50349ab747fSPaolo Bonzini case CMD_RESET: 50449ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_reset(val); 50549ab747fSPaolo Bonzini esp_soft_reset(s); 50649ab747fSPaolo Bonzini break; 50749ab747fSPaolo Bonzini case CMD_BUSRESET: 50849ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_bus_reset(val); 50949ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_RST; 51049ab747fSPaolo Bonzini if (!(s->wregs[ESP_CFG1] & CFG1_RESREPT)) { 51149ab747fSPaolo Bonzini esp_raise_irq(s); 51249ab747fSPaolo Bonzini } 51349ab747fSPaolo Bonzini break; 51449ab747fSPaolo Bonzini case CMD_TI: 51549ab747fSPaolo Bonzini handle_ti(s); 51649ab747fSPaolo Bonzini break; 51749ab747fSPaolo Bonzini case CMD_ICCS: 51849ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_iccs(val); 51949ab747fSPaolo Bonzini write_response(s); 52049ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_FC; 52149ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_MI; 52249ab747fSPaolo Bonzini break; 52349ab747fSPaolo Bonzini case CMD_MSGACC: 52449ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_msgacc(val); 52549ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_DC; 52649ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 52749ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 0; 52849ab747fSPaolo Bonzini esp_raise_irq(s); 52949ab747fSPaolo Bonzini break; 53049ab747fSPaolo Bonzini case CMD_PAD: 53149ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_pad(val); 53249ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC; 53349ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_FC; 53449ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 53549ab747fSPaolo Bonzini break; 53649ab747fSPaolo Bonzini case CMD_SATN: 53749ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_satn(val); 53849ab747fSPaolo Bonzini break; 53949ab747fSPaolo Bonzini case CMD_RSTATN: 54049ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_rstatn(val); 54149ab747fSPaolo Bonzini break; 54249ab747fSPaolo Bonzini case CMD_SEL: 54349ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_sel(val); 54449ab747fSPaolo Bonzini handle_s_without_atn(s); 54549ab747fSPaolo Bonzini break; 54649ab747fSPaolo Bonzini case CMD_SELATN: 54749ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_selatn(val); 54849ab747fSPaolo Bonzini handle_satn(s); 54949ab747fSPaolo Bonzini break; 55049ab747fSPaolo Bonzini case CMD_SELATNS: 55149ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_selatns(val); 55249ab747fSPaolo Bonzini handle_satn_stop(s); 55349ab747fSPaolo Bonzini break; 55449ab747fSPaolo Bonzini case CMD_ENSEL: 55549ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_ensel(val); 55649ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = 0; 55749ab747fSPaolo Bonzini break; 55849ab747fSPaolo Bonzini case CMD_DISSEL: 55949ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_dissel(val); 56049ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = 0; 56149ab747fSPaolo Bonzini esp_raise_irq(s); 56249ab747fSPaolo Bonzini break; 56349ab747fSPaolo Bonzini default: 56449ab747fSPaolo Bonzini trace_esp_error_unhandled_command(val); 56549ab747fSPaolo Bonzini break; 56649ab747fSPaolo Bonzini } 56749ab747fSPaolo Bonzini break; 56849ab747fSPaolo Bonzini case ESP_WBUSID ... ESP_WSYNO: 56949ab747fSPaolo Bonzini break; 57049ab747fSPaolo Bonzini case ESP_CFG1: 57149ab747fSPaolo Bonzini case ESP_CFG2: case ESP_CFG3: 57249ab747fSPaolo Bonzini case ESP_RES3: case ESP_RES4: 57349ab747fSPaolo Bonzini s->rregs[saddr] = val; 57449ab747fSPaolo Bonzini break; 57549ab747fSPaolo Bonzini case ESP_WCCF ... ESP_WTEST: 57649ab747fSPaolo Bonzini break; 57749ab747fSPaolo Bonzini default: 57849ab747fSPaolo Bonzini trace_esp_error_invalid_write(val, saddr); 57949ab747fSPaolo Bonzini return; 58049ab747fSPaolo Bonzini } 58149ab747fSPaolo Bonzini s->wregs[saddr] = val; 58249ab747fSPaolo Bonzini } 58349ab747fSPaolo Bonzini 58449ab747fSPaolo Bonzini static bool esp_mem_accepts(void *opaque, hwaddr addr, 5858372d383SPeter Maydell unsigned size, bool is_write, 5868372d383SPeter Maydell MemTxAttrs attrs) 58749ab747fSPaolo Bonzini { 58849ab747fSPaolo Bonzini return (size == 1) || (is_write && size == 4); 58949ab747fSPaolo Bonzini } 59049ab747fSPaolo Bonzini 59149ab747fSPaolo Bonzini const VMStateDescription vmstate_esp = { 59249ab747fSPaolo Bonzini .name ="esp", 593cc966774SPaolo Bonzini .version_id = 4, 59449ab747fSPaolo Bonzini .minimum_version_id = 3, 59549ab747fSPaolo Bonzini .fields = (VMStateField[]) { 59649ab747fSPaolo Bonzini VMSTATE_BUFFER(rregs, ESPState), 59749ab747fSPaolo Bonzini VMSTATE_BUFFER(wregs, ESPState), 59849ab747fSPaolo Bonzini VMSTATE_INT32(ti_size, ESPState), 59949ab747fSPaolo Bonzini VMSTATE_UINT32(ti_rptr, ESPState), 60049ab747fSPaolo Bonzini VMSTATE_UINT32(ti_wptr, ESPState), 60149ab747fSPaolo Bonzini VMSTATE_BUFFER(ti_buf, ESPState), 60249ab747fSPaolo Bonzini VMSTATE_UINT32(status, ESPState), 603ea84a442SGuenter Roeck VMSTATE_UINT32(deferred_status, ESPState), 604ea84a442SGuenter Roeck VMSTATE_BOOL(deferred_complete, ESPState), 60549ab747fSPaolo Bonzini VMSTATE_UINT32(dma, ESPState), 606cc966774SPaolo Bonzini VMSTATE_PARTIAL_BUFFER(cmdbuf, ESPState, 16), 607cc966774SPaolo Bonzini VMSTATE_BUFFER_START_MIDDLE_V(cmdbuf, ESPState, 16, 4), 60849ab747fSPaolo Bonzini VMSTATE_UINT32(cmdlen, ESPState), 60949ab747fSPaolo Bonzini VMSTATE_UINT32(do_cmd, ESPState), 61049ab747fSPaolo Bonzini VMSTATE_UINT32(dma_left, ESPState), 61149ab747fSPaolo Bonzini VMSTATE_END_OF_LIST() 61249ab747fSPaolo Bonzini } 61349ab747fSPaolo Bonzini }; 61449ab747fSPaolo Bonzini 61549ab747fSPaolo Bonzini static void sysbus_esp_mem_write(void *opaque, hwaddr addr, 61649ab747fSPaolo Bonzini uint64_t val, unsigned int size) 61749ab747fSPaolo Bonzini { 61849ab747fSPaolo Bonzini SysBusESPState *sysbus = opaque; 61949ab747fSPaolo Bonzini uint32_t saddr; 62049ab747fSPaolo Bonzini 62149ab747fSPaolo Bonzini saddr = addr >> sysbus->it_shift; 62249ab747fSPaolo Bonzini esp_reg_write(&sysbus->esp, saddr, val); 62349ab747fSPaolo Bonzini } 62449ab747fSPaolo Bonzini 62549ab747fSPaolo Bonzini static uint64_t sysbus_esp_mem_read(void *opaque, hwaddr addr, 62649ab747fSPaolo Bonzini unsigned int size) 62749ab747fSPaolo Bonzini { 62849ab747fSPaolo Bonzini SysBusESPState *sysbus = opaque; 62949ab747fSPaolo Bonzini uint32_t saddr; 63049ab747fSPaolo Bonzini 63149ab747fSPaolo Bonzini saddr = addr >> sysbus->it_shift; 63249ab747fSPaolo Bonzini return esp_reg_read(&sysbus->esp, saddr); 63349ab747fSPaolo Bonzini } 63449ab747fSPaolo Bonzini 63549ab747fSPaolo Bonzini static const MemoryRegionOps sysbus_esp_mem_ops = { 63649ab747fSPaolo Bonzini .read = sysbus_esp_mem_read, 63749ab747fSPaolo Bonzini .write = sysbus_esp_mem_write, 63849ab747fSPaolo Bonzini .endianness = DEVICE_NATIVE_ENDIAN, 63949ab747fSPaolo Bonzini .valid.accepts = esp_mem_accepts, 64049ab747fSPaolo Bonzini }; 64149ab747fSPaolo Bonzini 64249ab747fSPaolo Bonzini static const struct SCSIBusInfo esp_scsi_info = { 64349ab747fSPaolo Bonzini .tcq = false, 64449ab747fSPaolo Bonzini .max_target = ESP_MAX_DEVS, 64549ab747fSPaolo Bonzini .max_lun = 7, 64649ab747fSPaolo Bonzini 64749ab747fSPaolo Bonzini .transfer_data = esp_transfer_data, 64849ab747fSPaolo Bonzini .complete = esp_command_complete, 64949ab747fSPaolo Bonzini .cancel = esp_request_cancelled 65049ab747fSPaolo Bonzini }; 65149ab747fSPaolo Bonzini 65249ab747fSPaolo Bonzini static void sysbus_esp_gpio_demux(void *opaque, int irq, int level) 65349ab747fSPaolo Bonzini { 65480cac47eSKamil Rytarowski SysBusESPState *sysbus = ESP_STATE(opaque); 65549ab747fSPaolo Bonzini ESPState *s = &sysbus->esp; 65649ab747fSPaolo Bonzini 65749ab747fSPaolo Bonzini switch (irq) { 65849ab747fSPaolo Bonzini case 0: 65949ab747fSPaolo Bonzini parent_esp_reset(s, irq, level); 66049ab747fSPaolo Bonzini break; 66149ab747fSPaolo Bonzini case 1: 66249ab747fSPaolo Bonzini esp_dma_enable(opaque, irq, level); 66349ab747fSPaolo Bonzini break; 66449ab747fSPaolo Bonzini } 66549ab747fSPaolo Bonzini } 66649ab747fSPaolo Bonzini 667b09318caSHu Tao static void sysbus_esp_realize(DeviceState *dev, Error **errp) 66849ab747fSPaolo Bonzini { 669b09318caSHu Tao SysBusDevice *sbd = SYS_BUS_DEVICE(dev); 67080cac47eSKamil Rytarowski SysBusESPState *sysbus = ESP_STATE(dev); 67149ab747fSPaolo Bonzini ESPState *s = &sysbus->esp; 67249ab747fSPaolo Bonzini 673b09318caSHu Tao sysbus_init_irq(sbd, &s->irq); 67449ab747fSPaolo Bonzini assert(sysbus->it_shift != -1); 67549ab747fSPaolo Bonzini 67649ab747fSPaolo Bonzini s->chip_id = TCHI_FAS100A; 67729776739SPaolo Bonzini memory_region_init_io(&sysbus->iomem, OBJECT(sysbus), &sysbus_esp_mem_ops, 67829776739SPaolo Bonzini sysbus, "esp", ESP_REGS << sysbus->it_shift); 679b09318caSHu Tao sysbus_init_mmio(sbd, &sysbus->iomem); 68049ab747fSPaolo Bonzini 681b09318caSHu Tao qdev_init_gpio_in(dev, sysbus_esp_gpio_demux, 2); 68249ab747fSPaolo Bonzini 683b1187b51SAndreas Färber scsi_bus_new(&s->bus, sizeof(s->bus), dev, &esp_scsi_info, NULL); 68449ab747fSPaolo Bonzini } 68549ab747fSPaolo Bonzini 68649ab747fSPaolo Bonzini static void sysbus_esp_hard_reset(DeviceState *dev) 68749ab747fSPaolo Bonzini { 68880cac47eSKamil Rytarowski SysBusESPState *sysbus = ESP_STATE(dev); 68949ab747fSPaolo Bonzini esp_hard_reset(&sysbus->esp); 69049ab747fSPaolo Bonzini } 69149ab747fSPaolo Bonzini 69249ab747fSPaolo Bonzini static const VMStateDescription vmstate_sysbus_esp_scsi = { 69349ab747fSPaolo Bonzini .name = "sysbusespscsi", 694ea84a442SGuenter Roeck .version_id = 1, 695ea84a442SGuenter Roeck .minimum_version_id = 1, 69649ab747fSPaolo Bonzini .fields = (VMStateField[]) { 69749ab747fSPaolo Bonzini VMSTATE_STRUCT(esp, SysBusESPState, 0, vmstate_esp, ESPState), 69849ab747fSPaolo Bonzini VMSTATE_END_OF_LIST() 69949ab747fSPaolo Bonzini } 70049ab747fSPaolo Bonzini }; 70149ab747fSPaolo Bonzini 70249ab747fSPaolo Bonzini static void sysbus_esp_class_init(ObjectClass *klass, void *data) 70349ab747fSPaolo Bonzini { 70449ab747fSPaolo Bonzini DeviceClass *dc = DEVICE_CLASS(klass); 70549ab747fSPaolo Bonzini 706b09318caSHu Tao dc->realize = sysbus_esp_realize; 70749ab747fSPaolo Bonzini dc->reset = sysbus_esp_hard_reset; 70849ab747fSPaolo Bonzini dc->vmsd = &vmstate_sysbus_esp_scsi; 709125ee0edSMarcel Apfelbaum set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 71049ab747fSPaolo Bonzini } 71149ab747fSPaolo Bonzini 71249ab747fSPaolo Bonzini static const TypeInfo sysbus_esp_info = { 713a71c7ec5SHu Tao .name = TYPE_ESP, 71449ab747fSPaolo Bonzini .parent = TYPE_SYS_BUS_DEVICE, 71549ab747fSPaolo Bonzini .instance_size = sizeof(SysBusESPState), 71649ab747fSPaolo Bonzini .class_init = sysbus_esp_class_init, 71749ab747fSPaolo Bonzini }; 71849ab747fSPaolo Bonzini 71949ab747fSPaolo Bonzini static void esp_register_types(void) 72049ab747fSPaolo Bonzini { 72149ab747fSPaolo Bonzini type_register_static(&sysbus_esp_info); 72249ab747fSPaolo Bonzini } 72349ab747fSPaolo Bonzini 72449ab747fSPaolo Bonzini type_init(esp_register_types) 725