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" 28d6454270SMarkus Armbruster #include "migration/vmstate.h" 2964552b6bSMarkus Armbruster #include "hw/irq.h" 3049ab747fSPaolo Bonzini #include "hw/scsi/esp.h" 3149ab747fSPaolo Bonzini #include "trace.h" 3249ab747fSPaolo Bonzini #include "qemu/log.h" 330b8fa32fSMarkus Armbruster #include "qemu/module.h" 3449ab747fSPaolo Bonzini 3549ab747fSPaolo Bonzini /* 3649ab747fSPaolo Bonzini * On Sparc32, this is the ESP (NCR53C90) part of chip STP2000 (Master I/O), 3749ab747fSPaolo Bonzini * also produced as NCR89C100. See 3849ab747fSPaolo Bonzini * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C100.txt 3949ab747fSPaolo Bonzini * and 4049ab747fSPaolo Bonzini * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR53C9X.txt 4174d71ea1SLaurent Vivier * 4274d71ea1SLaurent Vivier * On Macintosh Quadra it is a NCR53C96. 4349ab747fSPaolo Bonzini */ 4449ab747fSPaolo Bonzini 4549ab747fSPaolo Bonzini static void esp_raise_irq(ESPState *s) 4649ab747fSPaolo Bonzini { 4749ab747fSPaolo Bonzini if (!(s->rregs[ESP_RSTAT] & STAT_INT)) { 4849ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_INT; 4949ab747fSPaolo Bonzini qemu_irq_raise(s->irq); 5049ab747fSPaolo Bonzini trace_esp_raise_irq(); 5149ab747fSPaolo Bonzini } 5249ab747fSPaolo Bonzini } 5349ab747fSPaolo Bonzini 5449ab747fSPaolo Bonzini static void esp_lower_irq(ESPState *s) 5549ab747fSPaolo Bonzini { 5649ab747fSPaolo Bonzini if (s->rregs[ESP_RSTAT] & STAT_INT) { 5749ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_INT; 5849ab747fSPaolo Bonzini qemu_irq_lower(s->irq); 5949ab747fSPaolo Bonzini trace_esp_lower_irq(); 6049ab747fSPaolo Bonzini } 6149ab747fSPaolo Bonzini } 6249ab747fSPaolo Bonzini 6374d71ea1SLaurent Vivier static void esp_raise_drq(ESPState *s) 6474d71ea1SLaurent Vivier { 6574d71ea1SLaurent Vivier qemu_irq_raise(s->irq_data); 66960ebfd9SMark Cave-Ayland trace_esp_raise_drq(); 6774d71ea1SLaurent Vivier } 6874d71ea1SLaurent Vivier 6974d71ea1SLaurent Vivier static void esp_lower_drq(ESPState *s) 7074d71ea1SLaurent Vivier { 7174d71ea1SLaurent Vivier qemu_irq_lower(s->irq_data); 72960ebfd9SMark Cave-Ayland trace_esp_lower_drq(); 7374d71ea1SLaurent Vivier } 7474d71ea1SLaurent Vivier 7549ab747fSPaolo Bonzini void esp_dma_enable(ESPState *s, int irq, int level) 7649ab747fSPaolo Bonzini { 7749ab747fSPaolo Bonzini if (level) { 7849ab747fSPaolo Bonzini s->dma_enabled = 1; 7949ab747fSPaolo Bonzini trace_esp_dma_enable(); 8049ab747fSPaolo Bonzini if (s->dma_cb) { 8149ab747fSPaolo Bonzini s->dma_cb(s); 8249ab747fSPaolo Bonzini s->dma_cb = NULL; 8349ab747fSPaolo Bonzini } 8449ab747fSPaolo Bonzini } else { 8549ab747fSPaolo Bonzini trace_esp_dma_disable(); 8649ab747fSPaolo Bonzini s->dma_enabled = 0; 8749ab747fSPaolo Bonzini } 8849ab747fSPaolo Bonzini } 8949ab747fSPaolo Bonzini 9049ab747fSPaolo Bonzini void esp_request_cancelled(SCSIRequest *req) 9149ab747fSPaolo Bonzini { 9249ab747fSPaolo Bonzini ESPState *s = req->hba_private; 9349ab747fSPaolo Bonzini 9449ab747fSPaolo Bonzini if (req == s->current_req) { 9549ab747fSPaolo Bonzini scsi_req_unref(s->current_req); 9649ab747fSPaolo Bonzini s->current_req = NULL; 9749ab747fSPaolo Bonzini s->current_dev = NULL; 9849ab747fSPaolo Bonzini } 9949ab747fSPaolo Bonzini } 10049ab747fSPaolo Bonzini 101c47b5835SMark Cave-Ayland static uint32_t esp_get_tc(ESPState *s) 102c47b5835SMark Cave-Ayland { 103c47b5835SMark Cave-Ayland uint32_t dmalen; 104c47b5835SMark Cave-Ayland 105c47b5835SMark Cave-Ayland dmalen = s->rregs[ESP_TCLO]; 106c47b5835SMark Cave-Ayland dmalen |= s->rregs[ESP_TCMID] << 8; 107c47b5835SMark Cave-Ayland dmalen |= s->rregs[ESP_TCHI] << 16; 108c47b5835SMark Cave-Ayland 109c47b5835SMark Cave-Ayland return dmalen; 110c47b5835SMark Cave-Ayland } 111c47b5835SMark Cave-Ayland 112c47b5835SMark Cave-Ayland static void esp_set_tc(ESPState *s, uint32_t dmalen) 113c47b5835SMark Cave-Ayland { 114c47b5835SMark Cave-Ayland s->rregs[ESP_TCLO] = dmalen; 115c47b5835SMark Cave-Ayland s->rregs[ESP_TCMID] = dmalen >> 8; 116c47b5835SMark Cave-Ayland s->rregs[ESP_TCHI] = dmalen >> 16; 117c47b5835SMark Cave-Ayland } 118c47b5835SMark Cave-Ayland 119c04ed569SMark Cave-Ayland static uint32_t esp_get_stc(ESPState *s) 120c04ed569SMark Cave-Ayland { 121c04ed569SMark Cave-Ayland uint32_t dmalen; 122c04ed569SMark Cave-Ayland 123c04ed569SMark Cave-Ayland dmalen = s->wregs[ESP_TCLO]; 124c04ed569SMark Cave-Ayland dmalen |= s->wregs[ESP_TCMID] << 8; 125c04ed569SMark Cave-Ayland dmalen |= s->wregs[ESP_TCHI] << 16; 126c04ed569SMark Cave-Ayland 127c04ed569SMark Cave-Ayland return dmalen; 128c04ed569SMark Cave-Ayland } 129c04ed569SMark Cave-Ayland 13074d71ea1SLaurent Vivier static void set_pdma(ESPState *s, enum pdma_origin_id origin, 13174d71ea1SLaurent Vivier uint32_t index, uint32_t len) 13274d71ea1SLaurent Vivier { 13374d71ea1SLaurent Vivier s->pdma_origin = origin; 13474d71ea1SLaurent Vivier s->pdma_start = index; 13574d71ea1SLaurent Vivier s->pdma_cur = index; 13674d71ea1SLaurent Vivier s->pdma_len = len; 13774d71ea1SLaurent Vivier } 13874d71ea1SLaurent Vivier 13974d71ea1SLaurent Vivier static uint8_t *get_pdma_buf(ESPState *s) 14074d71ea1SLaurent Vivier { 14174d71ea1SLaurent Vivier switch (s->pdma_origin) { 14274d71ea1SLaurent Vivier case PDMA: 14374d71ea1SLaurent Vivier return s->pdma_buf; 14474d71ea1SLaurent Vivier case TI: 14574d71ea1SLaurent Vivier return s->ti_buf; 14674d71ea1SLaurent Vivier case CMD: 14774d71ea1SLaurent Vivier return s->cmdbuf; 14874d71ea1SLaurent Vivier case ASYNC: 14974d71ea1SLaurent Vivier return s->async_buf; 15074d71ea1SLaurent Vivier } 15174d71ea1SLaurent Vivier return NULL; 15274d71ea1SLaurent Vivier } 15374d71ea1SLaurent Vivier 1546130b188SLaurent Vivier static int get_cmd_cb(ESPState *s) 1556130b188SLaurent Vivier { 1566130b188SLaurent Vivier int target; 1576130b188SLaurent Vivier 1586130b188SLaurent Vivier target = s->wregs[ESP_WBUSID] & BUSID_DID; 1596130b188SLaurent Vivier 1606130b188SLaurent Vivier s->ti_size = 0; 1616130b188SLaurent Vivier s->ti_rptr = 0; 1626130b188SLaurent Vivier s->ti_wptr = 0; 1636130b188SLaurent Vivier 1646130b188SLaurent Vivier if (s->current_req) { 1656130b188SLaurent Vivier /* Started a new command before the old one finished. Cancel it. */ 1666130b188SLaurent Vivier scsi_req_cancel(s->current_req); 1676130b188SLaurent Vivier s->async_len = 0; 1686130b188SLaurent Vivier } 1696130b188SLaurent Vivier 1706130b188SLaurent Vivier s->current_dev = scsi_device_find(&s->bus, 0, target, 0); 1716130b188SLaurent Vivier if (!s->current_dev) { 1726130b188SLaurent Vivier /* No such drive */ 1736130b188SLaurent Vivier s->rregs[ESP_RSTAT] = 0; 1746130b188SLaurent Vivier s->rregs[ESP_RINTR] = INTR_DC; 1756130b188SLaurent Vivier s->rregs[ESP_RSEQ] = SEQ_0; 1766130b188SLaurent Vivier esp_raise_irq(s); 1776130b188SLaurent Vivier return -1; 1786130b188SLaurent Vivier } 1796130b188SLaurent Vivier return 0; 1806130b188SLaurent Vivier } 1816130b188SLaurent Vivier 1826c1fef6bSPrasad J Pandit static uint32_t get_cmd(ESPState *s, uint8_t *buf, uint8_t buflen) 18349ab747fSPaolo Bonzini { 18449ab747fSPaolo Bonzini uint32_t dmalen; 18549ab747fSPaolo Bonzini int target; 18649ab747fSPaolo Bonzini 18749ab747fSPaolo Bonzini target = s->wregs[ESP_WBUSID] & BUSID_DID; 18849ab747fSPaolo Bonzini if (s->dma) { 189c47b5835SMark Cave-Ayland dmalen = esp_get_tc(s); 1906c1fef6bSPrasad J Pandit if (dmalen > buflen) { 1916c1fef6bSPrasad J Pandit return 0; 1926c1fef6bSPrasad J Pandit } 19374d71ea1SLaurent Vivier if (s->dma_memory_read) { 19449ab747fSPaolo Bonzini s->dma_memory_read(s->dma_opaque, buf, dmalen); 19549ab747fSPaolo Bonzini } else { 19674d71ea1SLaurent Vivier memcpy(s->pdma_buf, buf, dmalen); 19774d71ea1SLaurent Vivier set_pdma(s, PDMA, 0, dmalen); 19874d71ea1SLaurent Vivier esp_raise_drq(s); 19974d71ea1SLaurent Vivier return 0; 20074d71ea1SLaurent Vivier } 20174d71ea1SLaurent Vivier } else { 20249ab747fSPaolo Bonzini dmalen = s->ti_size; 203d3cdc491SPrasad J Pandit if (dmalen > TI_BUFSZ) { 204d3cdc491SPrasad J Pandit return 0; 205d3cdc491SPrasad J Pandit } 20649ab747fSPaolo Bonzini memcpy(buf, s->ti_buf, dmalen); 20749ab747fSPaolo Bonzini buf[0] = buf[2] >> 5; 20849ab747fSPaolo Bonzini } 20949ab747fSPaolo Bonzini trace_esp_get_cmd(dmalen, target); 21049ab747fSPaolo Bonzini 2116130b188SLaurent Vivier if (get_cmd_cb(s) < 0) { 21249ab747fSPaolo Bonzini return 0; 21349ab747fSPaolo Bonzini } 21449ab747fSPaolo Bonzini return dmalen; 21549ab747fSPaolo Bonzini } 21649ab747fSPaolo Bonzini 21749ab747fSPaolo Bonzini static void do_busid_cmd(ESPState *s, uint8_t *buf, uint8_t busid) 21849ab747fSPaolo Bonzini { 21949ab747fSPaolo Bonzini int32_t datalen; 22049ab747fSPaolo Bonzini int lun; 22149ab747fSPaolo Bonzini SCSIDevice *current_lun; 22249ab747fSPaolo Bonzini 22349ab747fSPaolo Bonzini trace_esp_do_busid_cmd(busid); 22449ab747fSPaolo Bonzini lun = busid & 7; 22549ab747fSPaolo Bonzini current_lun = scsi_device_find(&s->bus, 0, s->current_dev->id, lun); 22649ab747fSPaolo Bonzini s->current_req = scsi_req_new(current_lun, 0, lun, buf, s); 22749ab747fSPaolo Bonzini datalen = scsi_req_enqueue(s->current_req); 22849ab747fSPaolo Bonzini s->ti_size = datalen; 22949ab747fSPaolo Bonzini if (datalen != 0) { 23049ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC; 23149ab747fSPaolo Bonzini s->dma_left = 0; 23249ab747fSPaolo Bonzini s->dma_counter = 0; 23349ab747fSPaolo Bonzini if (datalen > 0) { 23449ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_DI; 23549ab747fSPaolo Bonzini } else { 23649ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_DO; 23749ab747fSPaolo Bonzini } 23849ab747fSPaolo Bonzini scsi_req_continue(s->current_req); 23949ab747fSPaolo Bonzini } 24049ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 24149ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 24249ab747fSPaolo Bonzini esp_raise_irq(s); 24349ab747fSPaolo Bonzini } 24449ab747fSPaolo Bonzini 24549ab747fSPaolo Bonzini static void do_cmd(ESPState *s, uint8_t *buf) 24649ab747fSPaolo Bonzini { 24749ab747fSPaolo Bonzini uint8_t busid = buf[0]; 24849ab747fSPaolo Bonzini 24949ab747fSPaolo Bonzini do_busid_cmd(s, &buf[1], busid); 25049ab747fSPaolo Bonzini } 25149ab747fSPaolo Bonzini 25274d71ea1SLaurent Vivier static void satn_pdma_cb(ESPState *s) 25374d71ea1SLaurent Vivier { 25474d71ea1SLaurent Vivier if (get_cmd_cb(s) < 0) { 25574d71ea1SLaurent Vivier return; 25674d71ea1SLaurent Vivier } 25774d71ea1SLaurent Vivier if (s->pdma_cur != s->pdma_start) { 25874d71ea1SLaurent Vivier do_cmd(s, get_pdma_buf(s) + s->pdma_start); 25974d71ea1SLaurent Vivier } 26074d71ea1SLaurent Vivier } 26174d71ea1SLaurent Vivier 26249ab747fSPaolo Bonzini static void handle_satn(ESPState *s) 26349ab747fSPaolo Bonzini { 26449ab747fSPaolo Bonzini uint8_t buf[32]; 26549ab747fSPaolo Bonzini int len; 26649ab747fSPaolo Bonzini 26749ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 26849ab747fSPaolo Bonzini s->dma_cb = handle_satn; 26949ab747fSPaolo Bonzini return; 27049ab747fSPaolo Bonzini } 27174d71ea1SLaurent Vivier s->pdma_cb = satn_pdma_cb; 2726c1fef6bSPrasad J Pandit len = get_cmd(s, buf, sizeof(buf)); 27394d5c79dSMark Cave-Ayland if (len) { 27449ab747fSPaolo Bonzini do_cmd(s, buf); 27549ab747fSPaolo Bonzini } 27694d5c79dSMark Cave-Ayland } 27749ab747fSPaolo Bonzini 27874d71ea1SLaurent Vivier static void s_without_satn_pdma_cb(ESPState *s) 27974d71ea1SLaurent Vivier { 28074d71ea1SLaurent Vivier if (get_cmd_cb(s) < 0) { 28174d71ea1SLaurent Vivier return; 28274d71ea1SLaurent Vivier } 28374d71ea1SLaurent Vivier if (s->pdma_cur != s->pdma_start) { 28474d71ea1SLaurent Vivier do_busid_cmd(s, get_pdma_buf(s) + s->pdma_start, 0); 28574d71ea1SLaurent Vivier } 28674d71ea1SLaurent Vivier } 28774d71ea1SLaurent Vivier 28849ab747fSPaolo Bonzini static void handle_s_without_atn(ESPState *s) 28949ab747fSPaolo Bonzini { 29049ab747fSPaolo Bonzini uint8_t buf[32]; 29149ab747fSPaolo Bonzini int len; 29249ab747fSPaolo Bonzini 29349ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 29449ab747fSPaolo Bonzini s->dma_cb = handle_s_without_atn; 29549ab747fSPaolo Bonzini return; 29649ab747fSPaolo Bonzini } 29774d71ea1SLaurent Vivier s->pdma_cb = s_without_satn_pdma_cb; 2986c1fef6bSPrasad J Pandit len = get_cmd(s, buf, sizeof(buf)); 29949ab747fSPaolo Bonzini if (len) { 30049ab747fSPaolo Bonzini do_busid_cmd(s, buf, 0); 30149ab747fSPaolo Bonzini } 30249ab747fSPaolo Bonzini } 30349ab747fSPaolo Bonzini 30474d71ea1SLaurent Vivier static void satn_stop_pdma_cb(ESPState *s) 30574d71ea1SLaurent Vivier { 30674d71ea1SLaurent Vivier if (get_cmd_cb(s) < 0) { 30774d71ea1SLaurent Vivier return; 30874d71ea1SLaurent Vivier } 30974d71ea1SLaurent Vivier s->cmdlen = s->pdma_cur - s->pdma_start; 31074d71ea1SLaurent Vivier if (s->cmdlen) { 31174d71ea1SLaurent Vivier trace_esp_handle_satn_stop(s->cmdlen); 31274d71ea1SLaurent Vivier s->do_cmd = 1; 31374d71ea1SLaurent Vivier s->rregs[ESP_RSTAT] = STAT_TC | STAT_CD; 31474d71ea1SLaurent Vivier s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 31574d71ea1SLaurent Vivier s->rregs[ESP_RSEQ] = SEQ_CD; 31674d71ea1SLaurent Vivier esp_raise_irq(s); 31774d71ea1SLaurent Vivier } 31874d71ea1SLaurent Vivier } 31974d71ea1SLaurent Vivier 32049ab747fSPaolo Bonzini static void handle_satn_stop(ESPState *s) 32149ab747fSPaolo Bonzini { 32249ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 32349ab747fSPaolo Bonzini s->dma_cb = handle_satn_stop; 32449ab747fSPaolo Bonzini return; 32549ab747fSPaolo Bonzini } 326c62c1fa0SPhilippe Mathieu-Daudé s->pdma_cb = satn_stop_pdma_cb; 3276c1fef6bSPrasad J Pandit s->cmdlen = get_cmd(s, s->cmdbuf, sizeof(s->cmdbuf)); 32849ab747fSPaolo Bonzini if (s->cmdlen) { 32949ab747fSPaolo Bonzini trace_esp_handle_satn_stop(s->cmdlen); 33049ab747fSPaolo Bonzini s->do_cmd = 1; 33149ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC | STAT_CD; 33249ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 33349ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 33449ab747fSPaolo Bonzini esp_raise_irq(s); 33549ab747fSPaolo Bonzini } 33649ab747fSPaolo Bonzini } 33749ab747fSPaolo Bonzini 33874d71ea1SLaurent Vivier static void write_response_pdma_cb(ESPState *s) 33974d71ea1SLaurent Vivier { 34074d71ea1SLaurent Vivier s->rregs[ESP_RSTAT] = STAT_TC | STAT_ST; 34174d71ea1SLaurent Vivier s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 34274d71ea1SLaurent Vivier s->rregs[ESP_RSEQ] = SEQ_CD; 34374d71ea1SLaurent Vivier esp_raise_irq(s); 34474d71ea1SLaurent Vivier } 34574d71ea1SLaurent Vivier 34649ab747fSPaolo Bonzini static void write_response(ESPState *s) 34749ab747fSPaolo Bonzini { 34849ab747fSPaolo Bonzini trace_esp_write_response(s->status); 34949ab747fSPaolo Bonzini s->ti_buf[0] = s->status; 35049ab747fSPaolo Bonzini s->ti_buf[1] = 0; 35149ab747fSPaolo Bonzini if (s->dma) { 35274d71ea1SLaurent Vivier if (s->dma_memory_write) { 35349ab747fSPaolo Bonzini s->dma_memory_write(s->dma_opaque, s->ti_buf, 2); 35449ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC | STAT_ST; 35549ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS | INTR_FC; 35649ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 35749ab747fSPaolo Bonzini } else { 35874d71ea1SLaurent Vivier set_pdma(s, TI, 0, 2); 35974d71ea1SLaurent Vivier s->pdma_cb = write_response_pdma_cb; 36074d71ea1SLaurent Vivier esp_raise_drq(s); 36174d71ea1SLaurent Vivier return; 36274d71ea1SLaurent Vivier } 36374d71ea1SLaurent Vivier } else { 36449ab747fSPaolo Bonzini s->ti_size = 2; 36549ab747fSPaolo Bonzini s->ti_rptr = 0; 366d020aa50SPaolo Bonzini s->ti_wptr = 2; 36749ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 2; 36849ab747fSPaolo Bonzini } 36949ab747fSPaolo Bonzini esp_raise_irq(s); 37049ab747fSPaolo Bonzini } 37149ab747fSPaolo Bonzini 37249ab747fSPaolo Bonzini static void esp_dma_done(ESPState *s) 37349ab747fSPaolo Bonzini { 37449ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_TC; 37549ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_BS; 37649ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 37749ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 0; 378c47b5835SMark Cave-Ayland esp_set_tc(s, 0); 37949ab747fSPaolo Bonzini esp_raise_irq(s); 38049ab747fSPaolo Bonzini } 38149ab747fSPaolo Bonzini 38274d71ea1SLaurent Vivier static void do_dma_pdma_cb(ESPState *s) 38374d71ea1SLaurent Vivier { 3844ca2ba6fSMark Cave-Ayland int to_device = ((s->rregs[ESP_RSTAT] & 7) == STAT_DO); 38574d71ea1SLaurent Vivier int len = s->pdma_cur - s->pdma_start; 38674d71ea1SLaurent Vivier if (s->do_cmd) { 38774d71ea1SLaurent Vivier s->ti_size = 0; 38874d71ea1SLaurent Vivier s->cmdlen = 0; 38974d71ea1SLaurent Vivier s->do_cmd = 0; 39074d71ea1SLaurent Vivier do_cmd(s, s->cmdbuf); 39174d71ea1SLaurent Vivier return; 39274d71ea1SLaurent Vivier } 39374d71ea1SLaurent Vivier s->dma_left -= len; 39474d71ea1SLaurent Vivier s->async_buf += len; 39574d71ea1SLaurent Vivier s->async_len -= len; 39674d71ea1SLaurent Vivier if (to_device) { 39774d71ea1SLaurent Vivier s->ti_size += len; 39874d71ea1SLaurent Vivier } else { 39974d71ea1SLaurent Vivier s->ti_size -= len; 40074d71ea1SLaurent Vivier } 40174d71ea1SLaurent Vivier if (s->async_len == 0) { 40274d71ea1SLaurent Vivier scsi_req_continue(s->current_req); 40374d71ea1SLaurent Vivier /* 40474d71ea1SLaurent Vivier * If there is still data to be read from the device then 40574d71ea1SLaurent Vivier * complete the DMA operation immediately. Otherwise defer 40674d71ea1SLaurent Vivier * until the scsi layer has completed. 40774d71ea1SLaurent Vivier */ 40874d71ea1SLaurent Vivier if (to_device || s->dma_left != 0 || s->ti_size == 0) { 40974d71ea1SLaurent Vivier return; 41074d71ea1SLaurent Vivier } 41174d71ea1SLaurent Vivier } 41274d71ea1SLaurent Vivier 41374d71ea1SLaurent Vivier /* Partially filled a scsi buffer. Complete immediately. */ 41474d71ea1SLaurent Vivier esp_dma_done(s); 41574d71ea1SLaurent Vivier } 41674d71ea1SLaurent Vivier 41749ab747fSPaolo Bonzini static void esp_do_dma(ESPState *s) 41849ab747fSPaolo Bonzini { 41949ab747fSPaolo Bonzini uint32_t len; 4204ca2ba6fSMark Cave-Ayland int to_device = ((s->rregs[ESP_RSTAT] & 7) == STAT_DO); 42149ab747fSPaolo Bonzini 42249ab747fSPaolo Bonzini len = s->dma_left; 42349ab747fSPaolo Bonzini if (s->do_cmd) { 42415407433SLaurent Vivier /* 42515407433SLaurent Vivier * handle_ti_cmd() case: esp_do_dma() is called only from 42615407433SLaurent Vivier * handle_ti_cmd() with do_cmd != NULL (see the assert()) 42715407433SLaurent Vivier */ 42849ab747fSPaolo Bonzini trace_esp_do_dma(s->cmdlen, len); 429926cde5fSPrasad J Pandit assert(s->cmdlen <= sizeof(s->cmdbuf) && 430926cde5fSPrasad J Pandit len <= sizeof(s->cmdbuf) - s->cmdlen); 43174d71ea1SLaurent Vivier if (s->dma_memory_read) { 43249ab747fSPaolo Bonzini s->dma_memory_read(s->dma_opaque, &s->cmdbuf[s->cmdlen], len); 43374d71ea1SLaurent Vivier } else { 43474d71ea1SLaurent Vivier set_pdma(s, CMD, s->cmdlen, len); 43574d71ea1SLaurent Vivier s->pdma_cb = do_dma_pdma_cb; 43674d71ea1SLaurent Vivier esp_raise_drq(s); 43774d71ea1SLaurent Vivier return; 43874d71ea1SLaurent Vivier } 43915407433SLaurent Vivier trace_esp_handle_ti_cmd(s->cmdlen); 44015407433SLaurent Vivier s->ti_size = 0; 44115407433SLaurent Vivier s->cmdlen = 0; 44215407433SLaurent Vivier s->do_cmd = 0; 44315407433SLaurent Vivier do_cmd(s, s->cmdbuf); 44449ab747fSPaolo Bonzini return; 44549ab747fSPaolo Bonzini } 44649ab747fSPaolo Bonzini if (s->async_len == 0) { 44749ab747fSPaolo Bonzini /* Defer until data is available. */ 44849ab747fSPaolo Bonzini return; 44949ab747fSPaolo Bonzini } 45049ab747fSPaolo Bonzini if (len > s->async_len) { 45149ab747fSPaolo Bonzini len = s->async_len; 45249ab747fSPaolo Bonzini } 45349ab747fSPaolo Bonzini if (to_device) { 45474d71ea1SLaurent Vivier if (s->dma_memory_read) { 45549ab747fSPaolo Bonzini s->dma_memory_read(s->dma_opaque, s->async_buf, len); 45649ab747fSPaolo Bonzini } else { 45774d71ea1SLaurent Vivier set_pdma(s, ASYNC, 0, len); 45874d71ea1SLaurent Vivier s->pdma_cb = do_dma_pdma_cb; 45974d71ea1SLaurent Vivier esp_raise_drq(s); 46074d71ea1SLaurent Vivier return; 46174d71ea1SLaurent Vivier } 46274d71ea1SLaurent Vivier } else { 46374d71ea1SLaurent Vivier if (s->dma_memory_write) { 46449ab747fSPaolo Bonzini s->dma_memory_write(s->dma_opaque, s->async_buf, len); 46574d71ea1SLaurent Vivier } else { 46674d71ea1SLaurent Vivier set_pdma(s, ASYNC, 0, len); 46774d71ea1SLaurent Vivier s->pdma_cb = do_dma_pdma_cb; 46874d71ea1SLaurent Vivier esp_raise_drq(s); 46974d71ea1SLaurent Vivier return; 47074d71ea1SLaurent Vivier } 47149ab747fSPaolo Bonzini } 47249ab747fSPaolo Bonzini s->dma_left -= len; 47349ab747fSPaolo Bonzini s->async_buf += len; 47449ab747fSPaolo Bonzini s->async_len -= len; 47594d5c79dSMark Cave-Ayland if (to_device) { 47649ab747fSPaolo Bonzini s->ti_size += len; 47794d5c79dSMark Cave-Ayland } else { 47849ab747fSPaolo Bonzini s->ti_size -= len; 47994d5c79dSMark Cave-Ayland } 48049ab747fSPaolo Bonzini if (s->async_len == 0) { 48149ab747fSPaolo Bonzini scsi_req_continue(s->current_req); 48294d5c79dSMark Cave-Ayland /* 48394d5c79dSMark Cave-Ayland * If there is still data to be read from the device then 48494d5c79dSMark Cave-Ayland * complete the DMA operation immediately. Otherwise defer 48594d5c79dSMark Cave-Ayland * until the scsi layer has completed. 48694d5c79dSMark Cave-Ayland */ 48749ab747fSPaolo Bonzini if (to_device || s->dma_left != 0 || s->ti_size == 0) { 48849ab747fSPaolo Bonzini return; 48949ab747fSPaolo Bonzini } 49049ab747fSPaolo Bonzini } 49149ab747fSPaolo Bonzini 49249ab747fSPaolo Bonzini /* Partially filled a scsi buffer. Complete immediately. */ 49349ab747fSPaolo Bonzini esp_dma_done(s); 49449ab747fSPaolo Bonzini } 49549ab747fSPaolo Bonzini 496ea84a442SGuenter Roeck static void esp_report_command_complete(ESPState *s, uint32_t status) 49749ab747fSPaolo Bonzini { 49849ab747fSPaolo Bonzini trace_esp_command_complete(); 49949ab747fSPaolo Bonzini if (s->ti_size != 0) { 50049ab747fSPaolo Bonzini trace_esp_command_complete_unexpected(); 50149ab747fSPaolo Bonzini } 50249ab747fSPaolo Bonzini s->ti_size = 0; 50349ab747fSPaolo Bonzini s->dma_left = 0; 50449ab747fSPaolo Bonzini s->async_len = 0; 50549ab747fSPaolo Bonzini if (status) { 50649ab747fSPaolo Bonzini trace_esp_command_complete_fail(); 50749ab747fSPaolo Bonzini } 50849ab747fSPaolo Bonzini s->status = status; 50949ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_ST; 51049ab747fSPaolo Bonzini esp_dma_done(s); 51149ab747fSPaolo Bonzini if (s->current_req) { 51249ab747fSPaolo Bonzini scsi_req_unref(s->current_req); 51349ab747fSPaolo Bonzini s->current_req = NULL; 51449ab747fSPaolo Bonzini s->current_dev = NULL; 51549ab747fSPaolo Bonzini } 51649ab747fSPaolo Bonzini } 51749ab747fSPaolo Bonzini 51817ea26c2SHannes Reinecke void esp_command_complete(SCSIRequest *req, size_t resid) 519ea84a442SGuenter Roeck { 520ea84a442SGuenter Roeck ESPState *s = req->hba_private; 521ea84a442SGuenter Roeck 522ea84a442SGuenter Roeck if (s->rregs[ESP_RSTAT] & STAT_INT) { 52394d5c79dSMark Cave-Ayland /* 52494d5c79dSMark Cave-Ayland * Defer handling command complete until the previous 525ea84a442SGuenter Roeck * interrupt has been handled. 526ea84a442SGuenter Roeck */ 527ea84a442SGuenter Roeck trace_esp_command_complete_deferred(); 52817ea26c2SHannes Reinecke s->deferred_status = req->status; 529ea84a442SGuenter Roeck s->deferred_complete = true; 530ea84a442SGuenter Roeck return; 531ea84a442SGuenter Roeck } 53217ea26c2SHannes Reinecke esp_report_command_complete(s, req->status); 533ea84a442SGuenter Roeck } 534ea84a442SGuenter Roeck 53549ab747fSPaolo Bonzini void esp_transfer_data(SCSIRequest *req, uint32_t len) 53649ab747fSPaolo Bonzini { 53749ab747fSPaolo Bonzini ESPState *s = req->hba_private; 53849ab747fSPaolo Bonzini 5397f0b6e11SPaolo Bonzini assert(!s->do_cmd); 54049ab747fSPaolo Bonzini trace_esp_transfer_data(s->dma_left, s->ti_size); 54149ab747fSPaolo Bonzini s->async_len = len; 54249ab747fSPaolo Bonzini s->async_buf = scsi_req_get_buf(req); 54349ab747fSPaolo Bonzini if (s->dma_left) { 54449ab747fSPaolo Bonzini esp_do_dma(s); 54549ab747fSPaolo Bonzini } else if (s->dma_counter != 0 && s->ti_size <= 0) { 54694d5c79dSMark Cave-Ayland /* 54794d5c79dSMark Cave-Ayland * If this was the last part of a DMA transfer then the 54894d5c79dSMark Cave-Ayland * completion interrupt is deferred to here. 54994d5c79dSMark Cave-Ayland */ 55049ab747fSPaolo Bonzini esp_dma_done(s); 55149ab747fSPaolo Bonzini } 55249ab747fSPaolo Bonzini } 55349ab747fSPaolo Bonzini 55449ab747fSPaolo Bonzini static void handle_ti(ESPState *s) 55549ab747fSPaolo Bonzini { 55649ab747fSPaolo Bonzini uint32_t dmalen, minlen; 55749ab747fSPaolo Bonzini 55849ab747fSPaolo Bonzini if (s->dma && !s->dma_enabled) { 55949ab747fSPaolo Bonzini s->dma_cb = handle_ti; 56049ab747fSPaolo Bonzini return; 56149ab747fSPaolo Bonzini } 56249ab747fSPaolo Bonzini 563c47b5835SMark Cave-Ayland dmalen = esp_get_tc(s); 56449ab747fSPaolo Bonzini s->dma_counter = dmalen; 56549ab747fSPaolo Bonzini 56694d5c79dSMark Cave-Ayland if (s->do_cmd) { 567926cde5fSPrasad J Pandit minlen = (dmalen < ESP_CMDBUF_SZ) ? dmalen : ESP_CMDBUF_SZ; 56894d5c79dSMark Cave-Ayland } else if (s->ti_size < 0) { 56949ab747fSPaolo Bonzini minlen = (dmalen < -s->ti_size) ? dmalen : -s->ti_size; 57094d5c79dSMark Cave-Ayland } else { 57149ab747fSPaolo Bonzini minlen = (dmalen < s->ti_size) ? dmalen : s->ti_size; 57294d5c79dSMark Cave-Ayland } 57349ab747fSPaolo Bonzini trace_esp_handle_ti(minlen); 57449ab747fSPaolo Bonzini if (s->dma) { 57549ab747fSPaolo Bonzini s->dma_left = minlen; 57649ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_TC; 57749ab747fSPaolo Bonzini esp_do_dma(s); 57815407433SLaurent Vivier } else if (s->do_cmd) { 57949ab747fSPaolo Bonzini trace_esp_handle_ti_cmd(s->cmdlen); 58049ab747fSPaolo Bonzini s->ti_size = 0; 58149ab747fSPaolo Bonzini s->cmdlen = 0; 58249ab747fSPaolo Bonzini s->do_cmd = 0; 58349ab747fSPaolo Bonzini do_cmd(s, s->cmdbuf); 58449ab747fSPaolo Bonzini } 58549ab747fSPaolo Bonzini } 58649ab747fSPaolo Bonzini 58749ab747fSPaolo Bonzini void esp_hard_reset(ESPState *s) 58849ab747fSPaolo Bonzini { 58949ab747fSPaolo Bonzini memset(s->rregs, 0, ESP_REGS); 59049ab747fSPaolo Bonzini memset(s->wregs, 0, ESP_REGS); 591c9cf45c1SHannes Reinecke s->tchi_written = 0; 59249ab747fSPaolo Bonzini s->ti_size = 0; 59349ab747fSPaolo Bonzini s->ti_rptr = 0; 59449ab747fSPaolo Bonzini s->ti_wptr = 0; 59549ab747fSPaolo Bonzini s->dma = 0; 59649ab747fSPaolo Bonzini s->do_cmd = 0; 59749ab747fSPaolo Bonzini s->dma_cb = NULL; 59849ab747fSPaolo Bonzini 59949ab747fSPaolo Bonzini s->rregs[ESP_CFG1] = 7; 60049ab747fSPaolo Bonzini } 60149ab747fSPaolo Bonzini 60249ab747fSPaolo Bonzini static void esp_soft_reset(ESPState *s) 60349ab747fSPaolo Bonzini { 60449ab747fSPaolo Bonzini qemu_irq_lower(s->irq); 60574d71ea1SLaurent Vivier qemu_irq_lower(s->irq_data); 60649ab747fSPaolo Bonzini esp_hard_reset(s); 60749ab747fSPaolo Bonzini } 60849ab747fSPaolo Bonzini 60949ab747fSPaolo Bonzini static void parent_esp_reset(ESPState *s, int irq, int level) 61049ab747fSPaolo Bonzini { 61149ab747fSPaolo Bonzini if (level) { 61249ab747fSPaolo Bonzini esp_soft_reset(s); 61349ab747fSPaolo Bonzini } 61449ab747fSPaolo Bonzini } 61549ab747fSPaolo Bonzini 61649ab747fSPaolo Bonzini uint64_t esp_reg_read(ESPState *s, uint32_t saddr) 61749ab747fSPaolo Bonzini { 618b630c075SMark Cave-Ayland uint32_t val; 61949ab747fSPaolo Bonzini 62049ab747fSPaolo Bonzini switch (saddr) { 62149ab747fSPaolo Bonzini case ESP_FIFO: 62249ab747fSPaolo Bonzini if ((s->rregs[ESP_RSTAT] & STAT_PIO_MASK) == 0) { 62349ab747fSPaolo Bonzini /* Data out. */ 624ff589551SPrasad J Pandit qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n"); 62549ab747fSPaolo Bonzini s->rregs[ESP_FIFO] = 0; 626ff589551SPrasad J Pandit } else if (s->ti_rptr < s->ti_wptr) { 627ff589551SPrasad J Pandit s->ti_size--; 62849ab747fSPaolo Bonzini s->rregs[ESP_FIFO] = s->ti_buf[s->ti_rptr++]; 62949ab747fSPaolo Bonzini } 630ff589551SPrasad J Pandit if (s->ti_rptr == s->ti_wptr) { 63149ab747fSPaolo Bonzini s->ti_rptr = 0; 63249ab747fSPaolo Bonzini s->ti_wptr = 0; 63349ab747fSPaolo Bonzini } 634b630c075SMark Cave-Ayland val = s->rregs[ESP_FIFO]; 63549ab747fSPaolo Bonzini break; 63649ab747fSPaolo Bonzini case ESP_RINTR: 63794d5c79dSMark Cave-Ayland /* 63894d5c79dSMark Cave-Ayland * Clear sequence step, interrupt register and all status bits 63994d5c79dSMark Cave-Ayland * except TC 64094d5c79dSMark Cave-Ayland */ 641b630c075SMark Cave-Ayland val = s->rregs[ESP_RINTR]; 64249ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = 0; 64349ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_TC; 64449ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = SEQ_CD; 64549ab747fSPaolo Bonzini esp_lower_irq(s); 646ea84a442SGuenter Roeck if (s->deferred_complete) { 647ea84a442SGuenter Roeck esp_report_command_complete(s, s->deferred_status); 648ea84a442SGuenter Roeck s->deferred_complete = false; 649ea84a442SGuenter Roeck } 650b630c075SMark Cave-Ayland break; 651c9cf45c1SHannes Reinecke case ESP_TCHI: 652c9cf45c1SHannes Reinecke /* Return the unique id if the value has never been written */ 653c9cf45c1SHannes Reinecke if (!s->tchi_written) { 654b630c075SMark Cave-Ayland val = s->chip_id; 655b630c075SMark Cave-Ayland } else { 656b630c075SMark Cave-Ayland val = s->rregs[saddr]; 657c9cf45c1SHannes Reinecke } 658b630c075SMark Cave-Ayland break; 65949ab747fSPaolo Bonzini default: 660b630c075SMark Cave-Ayland val = s->rregs[saddr]; 66149ab747fSPaolo Bonzini break; 66249ab747fSPaolo Bonzini } 663b630c075SMark Cave-Ayland 664b630c075SMark Cave-Ayland trace_esp_mem_readb(saddr, val); 665b630c075SMark Cave-Ayland return val; 66649ab747fSPaolo Bonzini } 66749ab747fSPaolo Bonzini 66849ab747fSPaolo Bonzini void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val) 66949ab747fSPaolo Bonzini { 67049ab747fSPaolo Bonzini trace_esp_mem_writeb(saddr, s->wregs[saddr], val); 67149ab747fSPaolo Bonzini switch (saddr) { 672c9cf45c1SHannes Reinecke case ESP_TCHI: 673c9cf45c1SHannes Reinecke s->tchi_written = true; 674c9cf45c1SHannes Reinecke /* fall through */ 67549ab747fSPaolo Bonzini case ESP_TCLO: 67649ab747fSPaolo Bonzini case ESP_TCMID: 67749ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] &= ~STAT_TC; 67849ab747fSPaolo Bonzini break; 67949ab747fSPaolo Bonzini case ESP_FIFO: 68049ab747fSPaolo Bonzini if (s->do_cmd) { 681926cde5fSPrasad J Pandit if (s->cmdlen < ESP_CMDBUF_SZ) { 68249ab747fSPaolo Bonzini s->cmdbuf[s->cmdlen++] = val & 0xff; 683c98c6c10SPrasad J Pandit } else { 684c98c6c10SPrasad J Pandit trace_esp_error_fifo_overrun(); 685c98c6c10SPrasad J Pandit } 686ff589551SPrasad J Pandit } else if (s->ti_wptr == TI_BUFSZ - 1) { 68749ab747fSPaolo Bonzini trace_esp_error_fifo_overrun(); 68849ab747fSPaolo Bonzini } else { 68949ab747fSPaolo Bonzini s->ti_size++; 69049ab747fSPaolo Bonzini s->ti_buf[s->ti_wptr++] = val & 0xff; 69149ab747fSPaolo Bonzini } 69249ab747fSPaolo Bonzini break; 69349ab747fSPaolo Bonzini case ESP_CMD: 69449ab747fSPaolo Bonzini s->rregs[saddr] = val; 69549ab747fSPaolo Bonzini if (val & CMD_DMA) { 69649ab747fSPaolo Bonzini s->dma = 1; 69749ab747fSPaolo Bonzini /* Reload DMA counter. */ 698*96676c2fSMark Cave-Ayland if (esp_get_stc(s) == 0) { 699*96676c2fSMark Cave-Ayland esp_set_tc(s, 0x10000); 700*96676c2fSMark Cave-Ayland } else { 701c04ed569SMark Cave-Ayland esp_set_tc(s, esp_get_stc(s)); 702*96676c2fSMark Cave-Ayland } 70349ab747fSPaolo Bonzini } else { 70449ab747fSPaolo Bonzini s->dma = 0; 70549ab747fSPaolo Bonzini } 70649ab747fSPaolo Bonzini switch (val & CMD_CMD) { 70749ab747fSPaolo Bonzini case CMD_NOP: 70849ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_nop(val); 70949ab747fSPaolo Bonzini break; 71049ab747fSPaolo Bonzini case CMD_FLUSH: 71149ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_flush(val); 71294d5c79dSMark Cave-Ayland /*s->ti_size = 0;*/ 71349ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_FC; 71449ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 71549ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 0; 71649ab747fSPaolo Bonzini break; 71749ab747fSPaolo Bonzini case CMD_RESET: 71849ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_reset(val); 71949ab747fSPaolo Bonzini esp_soft_reset(s); 72049ab747fSPaolo Bonzini break; 72149ab747fSPaolo Bonzini case CMD_BUSRESET: 72249ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_bus_reset(val); 72349ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_RST; 72449ab747fSPaolo Bonzini if (!(s->wregs[ESP_CFG1] & CFG1_RESREPT)) { 72549ab747fSPaolo Bonzini esp_raise_irq(s); 72649ab747fSPaolo Bonzini } 72749ab747fSPaolo Bonzini break; 72849ab747fSPaolo Bonzini case CMD_TI: 7290097d3ecSMark Cave-Ayland trace_esp_mem_writeb_cmd_ti(val); 73049ab747fSPaolo Bonzini handle_ti(s); 73149ab747fSPaolo Bonzini break; 73249ab747fSPaolo Bonzini case CMD_ICCS: 73349ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_iccs(val); 73449ab747fSPaolo Bonzini write_response(s); 73549ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_FC; 73649ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] |= STAT_MI; 73749ab747fSPaolo Bonzini break; 73849ab747fSPaolo Bonzini case CMD_MSGACC: 73949ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_msgacc(val); 74049ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_DC; 74149ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 74249ab747fSPaolo Bonzini s->rregs[ESP_RFLAGS] = 0; 74349ab747fSPaolo Bonzini esp_raise_irq(s); 74449ab747fSPaolo Bonzini break; 74549ab747fSPaolo Bonzini case CMD_PAD: 74649ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_pad(val); 74749ab747fSPaolo Bonzini s->rregs[ESP_RSTAT] = STAT_TC; 74849ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = INTR_FC; 74949ab747fSPaolo Bonzini s->rregs[ESP_RSEQ] = 0; 75049ab747fSPaolo Bonzini break; 75149ab747fSPaolo Bonzini case CMD_SATN: 75249ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_satn(val); 75349ab747fSPaolo Bonzini break; 75449ab747fSPaolo Bonzini case CMD_RSTATN: 75549ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_rstatn(val); 75649ab747fSPaolo Bonzini break; 75749ab747fSPaolo Bonzini case CMD_SEL: 75849ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_sel(val); 75949ab747fSPaolo Bonzini handle_s_without_atn(s); 76049ab747fSPaolo Bonzini break; 76149ab747fSPaolo Bonzini case CMD_SELATN: 76249ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_selatn(val); 76349ab747fSPaolo Bonzini handle_satn(s); 76449ab747fSPaolo Bonzini break; 76549ab747fSPaolo Bonzini case CMD_SELATNS: 76649ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_selatns(val); 76749ab747fSPaolo Bonzini handle_satn_stop(s); 76849ab747fSPaolo Bonzini break; 76949ab747fSPaolo Bonzini case CMD_ENSEL: 77049ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_ensel(val); 77149ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = 0; 77249ab747fSPaolo Bonzini break; 77349ab747fSPaolo Bonzini case CMD_DISSEL: 77449ab747fSPaolo Bonzini trace_esp_mem_writeb_cmd_dissel(val); 77549ab747fSPaolo Bonzini s->rregs[ESP_RINTR] = 0; 77649ab747fSPaolo Bonzini esp_raise_irq(s); 77749ab747fSPaolo Bonzini break; 77849ab747fSPaolo Bonzini default: 77949ab747fSPaolo Bonzini trace_esp_error_unhandled_command(val); 78049ab747fSPaolo Bonzini break; 78149ab747fSPaolo Bonzini } 78249ab747fSPaolo Bonzini break; 78349ab747fSPaolo Bonzini case ESP_WBUSID ... ESP_WSYNO: 78449ab747fSPaolo Bonzini break; 78549ab747fSPaolo Bonzini case ESP_CFG1: 78649ab747fSPaolo Bonzini case ESP_CFG2: case ESP_CFG3: 78749ab747fSPaolo Bonzini case ESP_RES3: case ESP_RES4: 78849ab747fSPaolo Bonzini s->rregs[saddr] = val; 78949ab747fSPaolo Bonzini break; 79049ab747fSPaolo Bonzini case ESP_WCCF ... ESP_WTEST: 79149ab747fSPaolo Bonzini break; 79249ab747fSPaolo Bonzini default: 79349ab747fSPaolo Bonzini trace_esp_error_invalid_write(val, saddr); 79449ab747fSPaolo Bonzini return; 79549ab747fSPaolo Bonzini } 79649ab747fSPaolo Bonzini s->wregs[saddr] = val; 79749ab747fSPaolo Bonzini } 79849ab747fSPaolo Bonzini 79949ab747fSPaolo Bonzini static bool esp_mem_accepts(void *opaque, hwaddr addr, 8008372d383SPeter Maydell unsigned size, bool is_write, 8018372d383SPeter Maydell MemTxAttrs attrs) 80249ab747fSPaolo Bonzini { 80349ab747fSPaolo Bonzini return (size == 1) || (is_write && size == 4); 80449ab747fSPaolo Bonzini } 80549ab747fSPaolo Bonzini 80674d71ea1SLaurent Vivier static bool esp_pdma_needed(void *opaque) 80774d71ea1SLaurent Vivier { 80874d71ea1SLaurent Vivier ESPState *s = opaque; 80974d71ea1SLaurent Vivier return s->dma_memory_read == NULL && s->dma_memory_write == NULL && 81074d71ea1SLaurent Vivier s->dma_enabled; 81174d71ea1SLaurent Vivier } 81274d71ea1SLaurent Vivier 81374d71ea1SLaurent Vivier static const VMStateDescription vmstate_esp_pdma = { 81474d71ea1SLaurent Vivier .name = "esp/pdma", 81574d71ea1SLaurent Vivier .version_id = 1, 81674d71ea1SLaurent Vivier .minimum_version_id = 1, 81774d71ea1SLaurent Vivier .needed = esp_pdma_needed, 81874d71ea1SLaurent Vivier .fields = (VMStateField[]) { 81974d71ea1SLaurent Vivier VMSTATE_BUFFER(pdma_buf, ESPState), 82074d71ea1SLaurent Vivier VMSTATE_INT32(pdma_origin, ESPState), 82174d71ea1SLaurent Vivier VMSTATE_UINT32(pdma_len, ESPState), 82274d71ea1SLaurent Vivier VMSTATE_UINT32(pdma_start, ESPState), 82374d71ea1SLaurent Vivier VMSTATE_UINT32(pdma_cur, ESPState), 82474d71ea1SLaurent Vivier VMSTATE_END_OF_LIST() 82574d71ea1SLaurent Vivier } 82674d71ea1SLaurent Vivier }; 82774d71ea1SLaurent Vivier 8280bd005beSMark Cave-Ayland static int esp_pre_save(void *opaque) 8290bd005beSMark Cave-Ayland { 8300bd005beSMark Cave-Ayland ESPState *s = ESP(opaque); 8310bd005beSMark Cave-Ayland 8320bd005beSMark Cave-Ayland s->mig_version_id = vmstate_esp.version_id; 8330bd005beSMark Cave-Ayland return 0; 8340bd005beSMark Cave-Ayland } 8350bd005beSMark Cave-Ayland 8360bd005beSMark Cave-Ayland static int esp_post_load(void *opaque, int version_id) 8370bd005beSMark Cave-Ayland { 8380bd005beSMark Cave-Ayland ESPState *s = ESP(opaque); 8390bd005beSMark Cave-Ayland 8400bd005beSMark Cave-Ayland s->mig_version_id = vmstate_esp.version_id; 8410bd005beSMark Cave-Ayland return 0; 8420bd005beSMark Cave-Ayland } 8430bd005beSMark Cave-Ayland 84449ab747fSPaolo Bonzini const VMStateDescription vmstate_esp = { 84549ab747fSPaolo Bonzini .name = "esp", 8460bd005beSMark Cave-Ayland .version_id = 5, 84749ab747fSPaolo Bonzini .minimum_version_id = 3, 8480bd005beSMark Cave-Ayland .pre_save = esp_pre_save, 8490bd005beSMark Cave-Ayland .post_load = esp_post_load, 85049ab747fSPaolo Bonzini .fields = (VMStateField[]) { 85149ab747fSPaolo Bonzini VMSTATE_BUFFER(rregs, ESPState), 85249ab747fSPaolo Bonzini VMSTATE_BUFFER(wregs, ESPState), 85349ab747fSPaolo Bonzini VMSTATE_INT32(ti_size, ESPState), 85449ab747fSPaolo Bonzini VMSTATE_UINT32(ti_rptr, ESPState), 85549ab747fSPaolo Bonzini VMSTATE_UINT32(ti_wptr, ESPState), 85649ab747fSPaolo Bonzini VMSTATE_BUFFER(ti_buf, ESPState), 85749ab747fSPaolo Bonzini VMSTATE_UINT32(status, ESPState), 858ea84a442SGuenter Roeck VMSTATE_UINT32(deferred_status, ESPState), 859ea84a442SGuenter Roeck VMSTATE_BOOL(deferred_complete, ESPState), 86049ab747fSPaolo Bonzini VMSTATE_UINT32(dma, ESPState), 861cc966774SPaolo Bonzini VMSTATE_PARTIAL_BUFFER(cmdbuf, ESPState, 16), 862cc966774SPaolo Bonzini VMSTATE_BUFFER_START_MIDDLE_V(cmdbuf, ESPState, 16, 4), 86349ab747fSPaolo Bonzini VMSTATE_UINT32(cmdlen, ESPState), 86449ab747fSPaolo Bonzini VMSTATE_UINT32(do_cmd, ESPState), 86549ab747fSPaolo Bonzini VMSTATE_UINT32(dma_left, ESPState), 86649ab747fSPaolo Bonzini VMSTATE_END_OF_LIST() 86774d71ea1SLaurent Vivier }, 86874d71ea1SLaurent Vivier .subsections = (const VMStateDescription * []) { 86974d71ea1SLaurent Vivier &vmstate_esp_pdma, 87074d71ea1SLaurent Vivier NULL 87149ab747fSPaolo Bonzini } 87249ab747fSPaolo Bonzini }; 87349ab747fSPaolo Bonzini 87449ab747fSPaolo Bonzini static void sysbus_esp_mem_write(void *opaque, hwaddr addr, 87549ab747fSPaolo Bonzini uint64_t val, unsigned int size) 87649ab747fSPaolo Bonzini { 87749ab747fSPaolo Bonzini SysBusESPState *sysbus = opaque; 878eb169c76SMark Cave-Ayland ESPState *s = ESP(&sysbus->esp); 87949ab747fSPaolo Bonzini uint32_t saddr; 88049ab747fSPaolo Bonzini 88149ab747fSPaolo Bonzini saddr = addr >> sysbus->it_shift; 882eb169c76SMark Cave-Ayland esp_reg_write(s, saddr, val); 88349ab747fSPaolo Bonzini } 88449ab747fSPaolo Bonzini 88549ab747fSPaolo Bonzini static uint64_t sysbus_esp_mem_read(void *opaque, hwaddr addr, 88649ab747fSPaolo Bonzini unsigned int size) 88749ab747fSPaolo Bonzini { 88849ab747fSPaolo Bonzini SysBusESPState *sysbus = opaque; 889eb169c76SMark Cave-Ayland ESPState *s = ESP(&sysbus->esp); 89049ab747fSPaolo Bonzini uint32_t saddr; 89149ab747fSPaolo Bonzini 89249ab747fSPaolo Bonzini saddr = addr >> sysbus->it_shift; 893eb169c76SMark Cave-Ayland return esp_reg_read(s, saddr); 89449ab747fSPaolo Bonzini } 89549ab747fSPaolo Bonzini 89649ab747fSPaolo Bonzini static const MemoryRegionOps sysbus_esp_mem_ops = { 89749ab747fSPaolo Bonzini .read = sysbus_esp_mem_read, 89849ab747fSPaolo Bonzini .write = sysbus_esp_mem_write, 89949ab747fSPaolo Bonzini .endianness = DEVICE_NATIVE_ENDIAN, 90049ab747fSPaolo Bonzini .valid.accepts = esp_mem_accepts, 90149ab747fSPaolo Bonzini }; 90249ab747fSPaolo Bonzini 90374d71ea1SLaurent Vivier static void sysbus_esp_pdma_write(void *opaque, hwaddr addr, 90474d71ea1SLaurent Vivier uint64_t val, unsigned int size) 90574d71ea1SLaurent Vivier { 90674d71ea1SLaurent Vivier SysBusESPState *sysbus = opaque; 907eb169c76SMark Cave-Ayland ESPState *s = ESP(&sysbus->esp); 90874d71ea1SLaurent Vivier uint32_t dmalen; 90974d71ea1SLaurent Vivier uint8_t *buf = get_pdma_buf(s); 91074d71ea1SLaurent Vivier 911960ebfd9SMark Cave-Ayland trace_esp_pdma_write(size); 912960ebfd9SMark Cave-Ayland 913c47b5835SMark Cave-Ayland dmalen = esp_get_tc(s); 91474d71ea1SLaurent Vivier if (dmalen == 0 || s->pdma_len == 0) { 91574d71ea1SLaurent Vivier return; 91674d71ea1SLaurent Vivier } 91774d71ea1SLaurent Vivier switch (size) { 91874d71ea1SLaurent Vivier case 1: 91974d71ea1SLaurent Vivier buf[s->pdma_cur++] = val; 92074d71ea1SLaurent Vivier s->pdma_len--; 92174d71ea1SLaurent Vivier dmalen--; 92274d71ea1SLaurent Vivier break; 92374d71ea1SLaurent Vivier case 2: 92474d71ea1SLaurent Vivier buf[s->pdma_cur++] = val >> 8; 92574d71ea1SLaurent Vivier buf[s->pdma_cur++] = val; 92674d71ea1SLaurent Vivier s->pdma_len -= 2; 92774d71ea1SLaurent Vivier dmalen -= 2; 92874d71ea1SLaurent Vivier break; 92974d71ea1SLaurent Vivier } 930c47b5835SMark Cave-Ayland esp_set_tc(s, dmalen); 93174d71ea1SLaurent Vivier if (s->pdma_len == 0 && s->pdma_cb) { 93274d71ea1SLaurent Vivier esp_lower_drq(s); 93374d71ea1SLaurent Vivier s->pdma_cb(s); 93474d71ea1SLaurent Vivier s->pdma_cb = NULL; 93574d71ea1SLaurent Vivier } 93674d71ea1SLaurent Vivier } 93774d71ea1SLaurent Vivier 93874d71ea1SLaurent Vivier static uint64_t sysbus_esp_pdma_read(void *opaque, hwaddr addr, 93974d71ea1SLaurent Vivier unsigned int size) 94074d71ea1SLaurent Vivier { 94174d71ea1SLaurent Vivier SysBusESPState *sysbus = opaque; 942eb169c76SMark Cave-Ayland ESPState *s = ESP(&sysbus->esp); 94374d71ea1SLaurent Vivier uint8_t *buf = get_pdma_buf(s); 94474d71ea1SLaurent Vivier uint64_t val = 0; 94574d71ea1SLaurent Vivier 946960ebfd9SMark Cave-Ayland trace_esp_pdma_read(size); 947960ebfd9SMark Cave-Ayland 94874d71ea1SLaurent Vivier if (s->pdma_len == 0) { 94974d71ea1SLaurent Vivier return 0; 95074d71ea1SLaurent Vivier } 95174d71ea1SLaurent Vivier switch (size) { 95274d71ea1SLaurent Vivier case 1: 95374d71ea1SLaurent Vivier val = buf[s->pdma_cur++]; 95474d71ea1SLaurent Vivier s->pdma_len--; 95574d71ea1SLaurent Vivier break; 95674d71ea1SLaurent Vivier case 2: 95774d71ea1SLaurent Vivier val = buf[s->pdma_cur++]; 95874d71ea1SLaurent Vivier val = (val << 8) | buf[s->pdma_cur++]; 95974d71ea1SLaurent Vivier s->pdma_len -= 2; 96074d71ea1SLaurent Vivier break; 96174d71ea1SLaurent Vivier } 96274d71ea1SLaurent Vivier 96374d71ea1SLaurent Vivier if (s->pdma_len == 0 && s->pdma_cb) { 96474d71ea1SLaurent Vivier esp_lower_drq(s); 96574d71ea1SLaurent Vivier s->pdma_cb(s); 96674d71ea1SLaurent Vivier s->pdma_cb = NULL; 96774d71ea1SLaurent Vivier } 96874d71ea1SLaurent Vivier return val; 96974d71ea1SLaurent Vivier } 97074d71ea1SLaurent Vivier 97174d71ea1SLaurent Vivier static const MemoryRegionOps sysbus_esp_pdma_ops = { 97274d71ea1SLaurent Vivier .read = sysbus_esp_pdma_read, 97374d71ea1SLaurent Vivier .write = sysbus_esp_pdma_write, 97474d71ea1SLaurent Vivier .endianness = DEVICE_NATIVE_ENDIAN, 97574d71ea1SLaurent Vivier .valid.min_access_size = 1, 97674d71ea1SLaurent Vivier .valid.max_access_size = 2, 97774d71ea1SLaurent Vivier }; 97874d71ea1SLaurent Vivier 97949ab747fSPaolo Bonzini static const struct SCSIBusInfo esp_scsi_info = { 98049ab747fSPaolo Bonzini .tcq = false, 98149ab747fSPaolo Bonzini .max_target = ESP_MAX_DEVS, 98249ab747fSPaolo Bonzini .max_lun = 7, 98349ab747fSPaolo Bonzini 98449ab747fSPaolo Bonzini .transfer_data = esp_transfer_data, 98549ab747fSPaolo Bonzini .complete = esp_command_complete, 98649ab747fSPaolo Bonzini .cancel = esp_request_cancelled 98749ab747fSPaolo Bonzini }; 98849ab747fSPaolo Bonzini 98949ab747fSPaolo Bonzini static void sysbus_esp_gpio_demux(void *opaque, int irq, int level) 99049ab747fSPaolo Bonzini { 99184fbefedSMark Cave-Ayland SysBusESPState *sysbus = SYSBUS_ESP(opaque); 992eb169c76SMark Cave-Ayland ESPState *s = ESP(&sysbus->esp); 99349ab747fSPaolo Bonzini 99449ab747fSPaolo Bonzini switch (irq) { 99549ab747fSPaolo Bonzini case 0: 99649ab747fSPaolo Bonzini parent_esp_reset(s, irq, level); 99749ab747fSPaolo Bonzini break; 99849ab747fSPaolo Bonzini case 1: 99949ab747fSPaolo Bonzini esp_dma_enable(opaque, irq, level); 100049ab747fSPaolo Bonzini break; 100149ab747fSPaolo Bonzini } 100249ab747fSPaolo Bonzini } 100349ab747fSPaolo Bonzini 1004b09318caSHu Tao static void sysbus_esp_realize(DeviceState *dev, Error **errp) 100549ab747fSPaolo Bonzini { 1006b09318caSHu Tao SysBusDevice *sbd = SYS_BUS_DEVICE(dev); 100784fbefedSMark Cave-Ayland SysBusESPState *sysbus = SYSBUS_ESP(dev); 1008eb169c76SMark Cave-Ayland ESPState *s = ESP(&sysbus->esp); 1009eb169c76SMark Cave-Ayland 1010eb169c76SMark Cave-Ayland if (!qdev_realize(DEVICE(s), NULL, errp)) { 1011eb169c76SMark Cave-Ayland return; 1012eb169c76SMark Cave-Ayland } 101349ab747fSPaolo Bonzini 1014b09318caSHu Tao sysbus_init_irq(sbd, &s->irq); 101574d71ea1SLaurent Vivier sysbus_init_irq(sbd, &s->irq_data); 101649ab747fSPaolo Bonzini assert(sysbus->it_shift != -1); 101749ab747fSPaolo Bonzini 101849ab747fSPaolo Bonzini s->chip_id = TCHI_FAS100A; 101929776739SPaolo Bonzini memory_region_init_io(&sysbus->iomem, OBJECT(sysbus), &sysbus_esp_mem_ops, 102074d71ea1SLaurent Vivier sysbus, "esp-regs", ESP_REGS << sysbus->it_shift); 1021b09318caSHu Tao sysbus_init_mmio(sbd, &sysbus->iomem); 102274d71ea1SLaurent Vivier memory_region_init_io(&sysbus->pdma, OBJECT(sysbus), &sysbus_esp_pdma_ops, 102374d71ea1SLaurent Vivier sysbus, "esp-pdma", 2); 102474d71ea1SLaurent Vivier sysbus_init_mmio(sbd, &sysbus->pdma); 102549ab747fSPaolo Bonzini 1026b09318caSHu Tao qdev_init_gpio_in(dev, sysbus_esp_gpio_demux, 2); 102749ab747fSPaolo Bonzini 1028b1187b51SAndreas Färber scsi_bus_new(&s->bus, sizeof(s->bus), dev, &esp_scsi_info, NULL); 102949ab747fSPaolo Bonzini } 103049ab747fSPaolo Bonzini 103149ab747fSPaolo Bonzini static void sysbus_esp_hard_reset(DeviceState *dev) 103249ab747fSPaolo Bonzini { 103384fbefedSMark Cave-Ayland SysBusESPState *sysbus = SYSBUS_ESP(dev); 1034eb169c76SMark Cave-Ayland ESPState *s = ESP(&sysbus->esp); 1035eb169c76SMark Cave-Ayland 1036eb169c76SMark Cave-Ayland esp_hard_reset(s); 1037eb169c76SMark Cave-Ayland } 1038eb169c76SMark Cave-Ayland 1039eb169c76SMark Cave-Ayland static void sysbus_esp_init(Object *obj) 1040eb169c76SMark Cave-Ayland { 1041eb169c76SMark Cave-Ayland SysBusESPState *sysbus = SYSBUS_ESP(obj); 1042eb169c76SMark Cave-Ayland 1043eb169c76SMark Cave-Ayland object_initialize_child(obj, "esp", &sysbus->esp, TYPE_ESP); 104449ab747fSPaolo Bonzini } 104549ab747fSPaolo Bonzini 104649ab747fSPaolo Bonzini static const VMStateDescription vmstate_sysbus_esp_scsi = { 104749ab747fSPaolo Bonzini .name = "sysbusespscsi", 10480bd005beSMark Cave-Ayland .version_id = 2, 1049ea84a442SGuenter Roeck .minimum_version_id = 1, 105049ab747fSPaolo Bonzini .fields = (VMStateField[]) { 10510bd005beSMark Cave-Ayland VMSTATE_UINT8_V(esp.mig_version_id, SysBusESPState, 2), 105249ab747fSPaolo Bonzini VMSTATE_STRUCT(esp, SysBusESPState, 0, vmstate_esp, ESPState), 105349ab747fSPaolo Bonzini VMSTATE_END_OF_LIST() 105449ab747fSPaolo Bonzini } 105549ab747fSPaolo Bonzini }; 105649ab747fSPaolo Bonzini 105749ab747fSPaolo Bonzini static void sysbus_esp_class_init(ObjectClass *klass, void *data) 105849ab747fSPaolo Bonzini { 105949ab747fSPaolo Bonzini DeviceClass *dc = DEVICE_CLASS(klass); 106049ab747fSPaolo Bonzini 1061b09318caSHu Tao dc->realize = sysbus_esp_realize; 106249ab747fSPaolo Bonzini dc->reset = sysbus_esp_hard_reset; 106349ab747fSPaolo Bonzini dc->vmsd = &vmstate_sysbus_esp_scsi; 1064125ee0edSMarcel Apfelbaum set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 106549ab747fSPaolo Bonzini } 106649ab747fSPaolo Bonzini 106749ab747fSPaolo Bonzini static const TypeInfo sysbus_esp_info = { 106884fbefedSMark Cave-Ayland .name = TYPE_SYSBUS_ESP, 106949ab747fSPaolo Bonzini .parent = TYPE_SYS_BUS_DEVICE, 1070eb169c76SMark Cave-Ayland .instance_init = sysbus_esp_init, 107149ab747fSPaolo Bonzini .instance_size = sizeof(SysBusESPState), 107249ab747fSPaolo Bonzini .class_init = sysbus_esp_class_init, 107349ab747fSPaolo Bonzini }; 107449ab747fSPaolo Bonzini 1075eb169c76SMark Cave-Ayland static void esp_class_init(ObjectClass *klass, void *data) 1076eb169c76SMark Cave-Ayland { 1077eb169c76SMark Cave-Ayland DeviceClass *dc = DEVICE_CLASS(klass); 1078eb169c76SMark Cave-Ayland 1079eb169c76SMark Cave-Ayland /* internal device for sysbusesp/pciespscsi, not user-creatable */ 1080eb169c76SMark Cave-Ayland dc->user_creatable = false; 1081eb169c76SMark Cave-Ayland set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1082eb169c76SMark Cave-Ayland } 1083eb169c76SMark Cave-Ayland 1084eb169c76SMark Cave-Ayland static const TypeInfo esp_info = { 1085eb169c76SMark Cave-Ayland .name = TYPE_ESP, 1086eb169c76SMark Cave-Ayland .parent = TYPE_DEVICE, 1087eb169c76SMark Cave-Ayland .instance_size = sizeof(ESPState), 1088eb169c76SMark Cave-Ayland .class_init = esp_class_init, 1089eb169c76SMark Cave-Ayland }; 1090eb169c76SMark Cave-Ayland 109149ab747fSPaolo Bonzini static void esp_register_types(void) 109249ab747fSPaolo Bonzini { 109349ab747fSPaolo Bonzini type_register_static(&sysbus_esp_info); 1094eb169c76SMark Cave-Ayland type_register_static(&esp_info); 109549ab747fSPaolo Bonzini } 109649ab747fSPaolo Bonzini 109749ab747fSPaolo Bonzini type_init(esp_register_types) 1098