Home | History | Annotate | Line # | Download | only in dev
wdc_mainbus.c revision 1.1.10.1
      1  1.1.10.1      yamt /*	$NetBSD: wdc_mainbus.c,v 1.1.10.1 2012/10/30 17:20:02 yamt Exp $	*/
      2       1.1  kiyohara /*
      3       1.1  kiyohara  * Copyright (c) 2010 KIYOHARA Takashi
      4       1.1  kiyohara  * All rights reserved.
      5       1.1  kiyohara  *
      6       1.1  kiyohara  * Redistribution and use in source and binary forms, with or without
      7       1.1  kiyohara  * modification, are permitted provided that the following conditions
      8       1.1  kiyohara  * are met:
      9       1.1  kiyohara  * 1. Redistributions of source code must retain the above copyright
     10       1.1  kiyohara  *    notice, this list of conditions and the following disclaimer.
     11       1.1  kiyohara  * 2. Redistributions in binary form must reproduce the above copyright
     12       1.1  kiyohara  *    notice, this list of conditions and the following disclaimer in the
     13       1.1  kiyohara  *    documentation and/or other materials provided with the distribution.
     14       1.1  kiyohara  *
     15       1.1  kiyohara  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16       1.1  kiyohara  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     17       1.1  kiyohara  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     18       1.1  kiyohara  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     19       1.1  kiyohara  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     20       1.1  kiyohara  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     21       1.1  kiyohara  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22       1.1  kiyohara  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     23       1.1  kiyohara  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     24       1.1  kiyohara  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25       1.1  kiyohara  * POSSIBILITY OF SUCH DAMAGE.
     26       1.1  kiyohara  *
     27       1.1  kiyohara  */
     28       1.1  kiyohara 
     29       1.1  kiyohara #include <sys/cdefs.h>
     30  1.1.10.1      yamt __KERNEL_RCSID(0, "$NetBSD: wdc_mainbus.c,v 1.1.10.1 2012/10/30 17:20:02 yamt Exp $");
     31       1.1  kiyohara 
     32       1.1  kiyohara #include <sys/param.h>
     33       1.1  kiyohara #include <sys/bus.h>
     34       1.1  kiyohara #include <sys/device.h>
     35       1.1  kiyohara #include <sys/errno.h>
     36       1.1  kiyohara 
     37       1.1  kiyohara #include <machine/autoconf.h>
     38       1.1  kiyohara #include <machine/intr.h>
     39       1.1  kiyohara #include <machine/mmeye.h>
     40       1.1  kiyohara 
     41       1.1  kiyohara #include <dev/ic/wdcreg.h>
     42       1.1  kiyohara #include <dev/ata/atavar.h>
     43       1.1  kiyohara #include <dev/ic/wdcvar.h>
     44       1.1  kiyohara 
     45       1.1  kiyohara #include "locators.h"
     46       1.1  kiyohara 
     47       1.1  kiyohara #define	WDC_MAINBUS_REG_NPORTS		8
     48       1.1  kiyohara #define	WDC_MAINBUS_AUXREG_OFFSET	0x206
     49       1.1  kiyohara #define	WDC_MAINBUS_AUXREG_NPORTS	1
     50       1.1  kiyohara 
     51       1.1  kiyohara /* options passed via the 'flags' config keyword */
     52       1.1  kiyohara #define WDC_OPTIONS_32			0x01 /* try to use 32bit data I/O */
     53       1.1  kiyohara #define WDC_OPTIONS_ATA_NOSTREAM	0x04
     54       1.1  kiyohara #define WDC_OPTIONS_ATAPI_NOSTREAM	0x08
     55       1.1  kiyohara 
     56       1.1  kiyohara struct wdc_mainbus_softc {
     57       1.1  kiyohara 	struct	wdc_softc sc_wdcdev;
     58       1.1  kiyohara 	struct	ata_channel *wdc_chanlist[1];
     59       1.1  kiyohara 	struct	ata_channel ata_channel;
     60       1.1  kiyohara 	struct	ata_queue wdc_chqueue;
     61       1.1  kiyohara 	struct	wdc_regs wdc_regs;
     62       1.1  kiyohara };
     63       1.1  kiyohara 
     64       1.1  kiyohara static int wdc_mainbus_match(device_t, cfdata_t, void *);
     65       1.1  kiyohara static void wdc_mainbus_attach(device_t, device_t, void *);
     66       1.1  kiyohara 
     67       1.1  kiyohara CFATTACH_DECL_NEW(wdc_mainbus, sizeof(struct wdc_mainbus_softc),
     68       1.1  kiyohara     wdc_mainbus_match, wdc_mainbus_attach, NULL, NULL);
     69       1.1  kiyohara 
     70       1.1  kiyohara static int
     71       1.1  kiyohara wdc_mainbus_match(device_t parent, cfdata_t match, void *aux)
     72       1.1  kiyohara {
     73       1.1  kiyohara 	struct mainbus_attach_args *ma = aux;
     74       1.1  kiyohara 	struct ata_channel ch;
     75       1.1  kiyohara 	struct wdc_softc wdc;
     76       1.1  kiyohara 	struct wdc_regs wdr;
     77       1.1  kiyohara 	int result = 0, i;
     78       1.1  kiyohara 
     79       1.1  kiyohara 	if (strcmp(ma->ma_name, match->cf_name) != 0)
     80       1.1  kiyohara 		return 0;
     81       1.1  kiyohara 
     82       1.1  kiyohara 	/* Disallow wildcarded values. */
     83       1.1  kiyohara 	if (ma->ma_addr1 == MAINBUSCF_ADDR1_DEFAULT ||
     84       1.1  kiyohara 	    ma->ma_irq1 == MAINBUSCF_IRQ1_DEFAULT)
     85       1.1  kiyohara 		return 0;
     86       1.1  kiyohara 
     87       1.1  kiyohara 	memset(&wdc, 0, sizeof(wdc));
     88       1.1  kiyohara 	memset(&ch, 0, sizeof(ch));
     89       1.1  kiyohara 	ch.ch_atac = &wdc.sc_atac;
     90       1.1  kiyohara 	wdc.regs = &wdr;
     91       1.1  kiyohara 
     92       1.1  kiyohara 	wdr.cmd_iot = SH3_BUS_SPACE_PCMCIA_IO;
     93       1.1  kiyohara 	if (bus_space_map(wdr.cmd_iot, ma->ma_addr1,
     94       1.1  kiyohara 	    WDC_MAINBUS_REG_NPORTS, 0, &wdr.cmd_baseioh) != 0)
     95       1.1  kiyohara 		goto out;
     96       1.1  kiyohara 
     97       1.1  kiyohara 	for (i = 0; i < WDC_MAINBUS_REG_NPORTS; i++) {
     98       1.1  kiyohara 		if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh, i,
     99       1.1  kiyohara 		    i == 0 ? 4 : 1, &wdr.cmd_iohs[i]) != 0)
    100       1.1  kiyohara 			goto outunmap;
    101       1.1  kiyohara 	}
    102       1.1  kiyohara 	wdc_init_shadow_regs(&ch);
    103       1.1  kiyohara 
    104       1.1  kiyohara 	wdr.ctl_iot = SH3_BUS_SPACE_PCMCIA_IO;
    105       1.1  kiyohara 	if (bus_space_map(wdr.ctl_iot, ma->ma_addr1 + WDC_MAINBUS_AUXREG_OFFSET,
    106       1.1  kiyohara 	    WDC_MAINBUS_AUXREG_NPORTS, 0, &wdr.ctl_ioh) != 0)
    107       1.1  kiyohara 		goto outunmap;
    108       1.1  kiyohara 
    109       1.1  kiyohara #if 0
    110       1.1  kiyohara bus_space_write_1(iot, ioh, 0x200, 0x80);
    111       1.1  kiyohara delay(1000);
    112       1.1  kiyohara bus_space_write_1(iot, ioh, 0x200, 0x00);
    113       1.1  kiyohara delay(1000);
    114       1.1  kiyohara printf("CF COR=0x%x\n", bus_space_read_1(iot, ioh, 0x200));
    115       1.1  kiyohara bus_space_write_1(iot, ioh, 0x200, 0x41);
    116       1.1  kiyohara printf("CF COR=0x%x\n", bus_space_read_1(iot, ioh, 0x200));
    117       1.1  kiyohara delay(1000000);
    118       1.1  kiyohara #endif
    119       1.1  kiyohara 	result = wdcprobe(&ch);
    120       1.1  kiyohara 
    121       1.1  kiyohara 	bus_space_unmap(wdr.ctl_iot, wdr.ctl_ioh, WDC_MAINBUS_AUXREG_NPORTS);
    122       1.1  kiyohara outunmap:
    123       1.1  kiyohara 	bus_space_unmap(wdr.cmd_iot, wdr.cmd_baseioh, WDC_MAINBUS_REG_NPORTS);
    124       1.1  kiyohara out:
    125       1.1  kiyohara 	return result;
    126       1.1  kiyohara }
    127       1.1  kiyohara 
    128       1.1  kiyohara static void
    129       1.1  kiyohara wdc_mainbus_attach(device_t parent, device_t self, void *aux)
    130       1.1  kiyohara {
    131       1.1  kiyohara 	struct wdc_mainbus_softc *sc = device_private(self);
    132       1.1  kiyohara 	struct mainbus_attach_args *ma = aux;
    133       1.1  kiyohara 	struct wdc_regs *wdr;
    134       1.1  kiyohara 	int wdc_cf_flags = device_cfdata(self)->cf_flags;
    135       1.1  kiyohara 	int i;
    136       1.1  kiyohara 
    137       1.1  kiyohara 	sc->sc_wdcdev.sc_atac.atac_dev = self;
    138       1.1  kiyohara 	sc->sc_wdcdev.regs = wdr = &sc->wdc_regs;
    139       1.1  kiyohara 	wdr->cmd_iot = SH3_BUS_SPACE_PCMCIA_IO;
    140       1.1  kiyohara 	wdr->ctl_iot = SH3_BUS_SPACE_PCMCIA_IO;
    141       1.1  kiyohara 	if (bus_space_map(wdr->cmd_iot, ma->ma_addr1,
    142       1.1  kiyohara 	      WDC_MAINBUS_REG_NPORTS, 0, &wdr->cmd_baseioh) ||
    143       1.1  kiyohara 	    bus_space_map(wdr->ctl_iot,
    144       1.1  kiyohara 	      ma->ma_addr1 + WDC_MAINBUS_AUXREG_OFFSET,
    145       1.1  kiyohara 	      WDC_MAINBUS_AUXREG_NPORTS, 0, &wdr->ctl_ioh)) {
    146       1.1  kiyohara 		aprint_error(": couldn't map registers\n");
    147       1.1  kiyohara 		return;
    148       1.1  kiyohara 	}
    149       1.1  kiyohara 	for (i = 0; i < WDC_MAINBUS_REG_NPORTS; i++) {
    150       1.1  kiyohara 		if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, i,
    151       1.1  kiyohara 		    i == 0 ? 4 : 1, &wdr->cmd_iohs[i]) != 0) {
    152       1.1  kiyohara 			aprint_error(": couldn't subregion registers (3)\n");
    153       1.1  kiyohara 			return;
    154       1.1  kiyohara 		}
    155       1.1  kiyohara 	}
    156       1.1  kiyohara 
    157       1.1  kiyohara 	wdr->data32iot = wdr->cmd_iot;
    158       1.1  kiyohara 	wdr->data32ioh = wdr->cmd_iohs[0];
    159       1.1  kiyohara 
    160       1.1  kiyohara 	sc->sc_wdcdev.cap |= WDC_CAPABILITY_PREATA;
    161       1.1  kiyohara 	sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16;
    162       1.1  kiyohara 	if (wdc_cf_flags & WDC_OPTIONS_32)
    163       1.1  kiyohara 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA32;
    164       1.1  kiyohara 	if (wdc_cf_flags & WDC_OPTIONS_ATA_NOSTREAM)
    165       1.1  kiyohara 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_ATA_NOSTREAM;
    166       1.1  kiyohara 	if (wdc_cf_flags & WDC_OPTIONS_ATAPI_NOSTREAM)
    167       1.1  kiyohara 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_ATAPI_NOSTREAM;
    168       1.1  kiyohara 
    169       1.1  kiyohara 	sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
    170       1.1  kiyohara 	sc->wdc_chanlist[0] = &sc->ata_channel;
    171       1.1  kiyohara 	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist;
    172       1.1  kiyohara 	sc->sc_wdcdev.sc_atac.atac_nchannels = 1;
    173  1.1.10.1      yamt 	sc->sc_wdcdev.wdc_maxdrives = 2;
    174       1.1  kiyohara 	sc->ata_channel.ch_channel = 0;
    175       1.1  kiyohara 	sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac;
    176       1.1  kiyohara 	sc->ata_channel.ch_queue = &sc->wdc_chqueue;
    177       1.1  kiyohara 	wdc_init_shadow_regs(&sc->ata_channel);
    178       1.1  kiyohara 
    179       1.1  kiyohara 	aprint_normal("\n");
    180       1.1  kiyohara 
    181       1.1  kiyohara 	mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_BIO,
    182       1.1  kiyohara 	    wdcintr, &sc->ata_channel);
    183       1.1  kiyohara 
    184       1.1  kiyohara 	wdcattach(&sc->ata_channel);
    185       1.1  kiyohara }
    186