Advance Systems SCSI Host Adapter driver for CAM. Currently only support

the 8bit SCSI AdvanSys products.

1 files changed, 275 insertions, 0 deletions

diff --git a/sys/dev/advansys/adv_pci.c b/sys/dev/advansys/adv_pci.c
new file mode 100644
index 0000000..2f9e4e1
--- /dev/null
+++ b/sys/dev/advansys/adv_pci.c
@@ -0,0 +1,275 @@
+/*
+ * Device probe and attach routines for the following
+ * Advanced Systems Inc. SCSI controllers:
+ *
+ *   Connectivity Products:
+ *	ABP920   - Bus-Master PCI (16 CDB)
+ *	ABP930   - Bus-Master PCI (16 CDB) *
+ *	ABP930U  - Bus-Master PCI Ultra (16 CDB)
+ *	ABP930UA - Bus-Master PCI Ultra (16 CDB)
+ *	ABP960   - Bus-Master PCI MAC/PC (16 CDB) **
+ *	ABP960U  - Bus-Master PCI MAC/PC Ultra (16 CDB)
+ *
+ *   Single Channel Products:
+ *	ABP940 - Bus-Master PCI (240 CDB)
+ *	ABP940U - Bus-Master PCI Ultra (240 CDB)
+ *	ABP970 - Bus-Master PCI MAC/PC (240 CDB)
+ *	ABP970U - Bus-Master PCI MAC/PC Ultra (240 CDB)
+ *
+ *   Dual Channel Products:  
+ *	ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel)
+ *
+ *   Footnotes:
+ *	 * This board has been sold by SIIG as the Fast SCSI Pro PCI.
+ *	** This board has been sold by Iomega as a Jaz Jet PCI adapter. 
+ *
+ * Copyright (c) 1997 Justin Gibbs.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$Id$
+ */
+
+#include <pci.h>
+#if NPCI > 0
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+
+#include <machine/bus_pio.h>
+#include <machine/bus.h>
+
+#include <pci/pcireg.h>
+#include <pci/pcivar.h>
+
+#include <dev/advansys/advansys.h>
+
+#define PCI_BASEADR0	PCI_MAP_REG_START	/* I/O Address */
+#define PCI_BASEADR1	PCI_MAP_REG_START + 4	/* Mem I/O Address */
+
+#define	PCI_DEVICE_ID_ADVANSYS_1200A	0x110010CD
+#define	PCI_DEVICE_ID_ADVANSYS_1200B	0x120010CD
+#define	PCI_DEVICE_ID_ADVANSYS_ULTRA	0x130010CD
+#define	PCI_DEVICE_REV_ADVANSYS_3150	0x02
+#define	PCI_DEVICE_REV_ADVANSYS_3050	0x03
+
+#define ADV_PCI_MAX_DMA_ADDR    (0xFFFFFFFFL)
+#define ADV_PCI_MAX_DMA_COUNT   (0xFFFFFFFFL)
+
+static char* advpciprobe(pcici_t tag, pcidi_t type);
+static void advpciattach(pcici_t config_id, int unit);
+
+/* 
+ * The overrun buffer shared amongst all PCI adapters.
+ */
+static  u_int8_t*	overrun_buf;
+bus_dma_tag_t		overrun_dmat;
+bus_dmamap_t		overrun_dmamap;
+bus_addr_t		overrun_physbase;
+
+static struct  pci_device adv_pci_driver = {
+	"adv",
+        advpciprobe,
+        advpciattach,
+        &adv_unit,
+	NULL
+};
+
+DATA_SET (pcidevice_set, adv_pci_driver);
+
+static  char*
+advpciprobe(pcici_t tag, pcidi_t type)
+{
+	int rev = pci_conf_read(tag, PCI_CLASS_REG) & 0xff;
+	switch (type) {
+	case PCI_DEVICE_ID_ADVANSYS_1200A:
+		return ("AdvanSys ASC1200A SCSI controller");
+	case PCI_DEVICE_ID_ADVANSYS_1200B:
+		return ("AdvanSys ASC1200B SCSI controller");
+	case PCI_DEVICE_ID_ADVANSYS_ULTRA:
+		if (rev == PCI_DEVICE_REV_ADVANSYS_3150)
+			return ("AdvanSys ASC3150 Ultra SCSI controller");
+		else
+			return ("AdvanSys ASC3050 Ultra SCSI controller");
+		break;
+	default:
+		break;
+	}
+	return (NULL);
+}
+
+static void
+advpciattach(pcici_t config_id, int unit)
+{
+	u_int16_t	io_port;
+	u_int16_t	config_msw;
+	struct		adv_softc *adv;
+	u_int32_t	id;
+	u_int32_t	command;
+	int		error;
+ 
+	/*
+	 * Determine the chip version.
+	 */
+	id = pci_cfgread(config_id, PCI_ID_REG, /*bytes*/4);
+	command = pci_cfgread(config_id, PCIR_COMMAND, /*bytes*/1);
+
+	/*
+	 * These cards do not allow memory mapped accesses, so we must
+	 * ensure that I/O accesses are available or we won't be able
+	 * to talk to them.
+	 */
+	if ((command & (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN))
+	 != (PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN)) {
+		command |= PCIM_CMD_PORTEN|PCIM_CMD_BUSMASTEREN;
+		pci_cfgwrite(config_id, PCIR_COMMAND, command, /*bytes*/1);
+	}
+
+	/*
+	 * Early chips can't handle non-zero latency timer settings.
+	 */
+	if (id == PCI_DEVICE_ID_ADVANSYS_1200A
+	 || id == PCI_DEVICE_ID_ADVANSYS_1200B) {
+		pci_cfgwrite(config_id, PCIR_LATTIMER, /*value*/0, /*bytes*/1);
+	}
+
+
+	if (pci_map_port(config_id, PCI_BASEADR0, &io_port) == 0)
+		return;
+
+	if (adv_find_signature(I386_BUS_SPACE_IO, io_port) == 0)
+		return;
+
+	adv = adv_alloc(unit, I386_BUS_SPACE_IO, io_port);
+	if (adv == NULL)
+		return;
+
+	/* Allocate a dmatag for our transfer DMA maps */
+	/* XXX Should be a child of the PCI bus dma tag */
+	error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/0,
+				   /*boundary*/0,
+				   /*lowaddr*/ADV_PCI_MAX_DMA_ADDR,
+				   /*highaddr*/BUS_SPACE_MAXADDR,
+				   /*filter*/NULL, /*filterarg*/NULL,
+				   /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
+				   /*nsegments*/BUS_SPACE_UNRESTRICTED,
+				   /*maxsegsz*/ADV_PCI_MAX_DMA_COUNT,
+				   /*flags*/0,
+				   &adv->parent_dmat);
+ 
+	if (error != 0) {
+		printf("%s: Could not allocate DMA tag - error %d\n",
+		       adv_name(adv), error);
+		adv_free(adv);
+		return;
+	}
+
+	adv->init_level++;
+
+	if (overrun_buf == NULL) {
+		/* Need to allocate our overrun buffer */
+		if (bus_dma_tag_create(adv->parent_dmat,
+				       /*alignment*/8, /*boundary*/0,
+				       ADV_PCI_MAX_DMA_ADDR, BUS_SPACE_MAXADDR,
+				       /*filter*/NULL, /*filterarg*/NULL,
+				       ADV_OVERRUN_BSIZE, /*nsegments*/1,
+				       BUS_SPACE_MAXSIZE_32BIT, /*flags*/0,
+				       &overrun_dmat) != 0) {
+			bus_dma_tag_destroy(adv->parent_dmat);
+			adv_free(adv);
+			return;
+       		}
+		if (bus_dmamem_alloc(overrun_dmat,
+				     (void **)&overrun_buf,
+				     BUS_DMA_NOWAIT,
+				     &overrun_dmamap) != 0) {
+			bus_dma_tag_destroy(overrun_dmat);
+			bus_dma_tag_destroy(adv->parent_dmat);
+			adv_free(adv);
+			return;
+		}
+		/* And permanently map it in */  
+		bus_dmamap_load(overrun_dmat, overrun_dmamap,
+				overrun_buf, ADV_OVERRUN_BSIZE,
+				adv_map, &overrun_physbase,
+				/*flags*/0);
+	}
+
+	adv->overrun_physbase = overrun_physbase;
+			
+	/*
+	 * Stop the chip.
+	 */
+	ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
+	ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
+
+	adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
+	adv->type = ADV_PCI;
+	
+	/*
+	 * Setup active negation and signal filtering.
+	 */
+	{
+		u_int8_t extra_cfg;
+
+		if (adv->chip_version >= ADV_CHIP_VER_PCI_ULTRA_3150)
+			adv->type |= ADV_ULTRA;
+		if (adv->chip_version == ADV_CHIP_VER_PCI_ULTRA_3150)
+			extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_SLEW_RATE;
+		else if (adv->chip_version == ADV_CHIP_VER_PCI_ULTRA_3050)
+			extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_WR_EN_FILTER;
+		else
+			extra_cfg = ADV_IFC_ACT_NEG | ADV_IFC_SLEW_RATE;
+		ADV_OUTB(adv, ADV_REG_IFC, extra_cfg);
+	}
+
+	if (adv_init(adv) != 0) {
+		adv_free(adv);
+		return;
+	}
+
+	adv->max_dma_count = ADV_PCI_MAX_DMA_COUNT;
+	adv->max_dma_addr = ADV_PCI_MAX_DMA_ADDR;
+
+#if CC_DISABLE_PCI_PARITY_INT
+	config_msw = ADV_INW(adv, ADV_CONFIG_MSW);
+	config_msw &= 0xFFC0;
+	ADV_OUTW(adv, ADV_CONFIG_MSW, config_msw); 
+#endif
+ 
+	if (id == PCI_DEVICE_ID_ADVANSYS_1200A
+	 || id == PCI_DEVICE_ID_ADVANSYS_1200B) {
+		adv->bug_fix_control |= ADV_BUG_FIX_IF_NOT_DWB;
+		adv->bug_fix_control |= ADV_BUG_FIX_ASYN_USE_SYN;
+		adv->fix_asyn_xfer = ~0;
+	}
+
+	if ((pci_map_int(config_id, adv_intr, (void *)adv, &cam_imask)) == 0) {
+		adv_free(adv);
+		return;
+	}
+	
+	adv_attach(adv);
+}
+
+#endif /* NPCI > 0 */