280 lines
6.6 KiB
C
280 lines
6.6 KiB
C
/* $NetBSD: spd.c,v 1.3 2002/10/02 04:17:21 thorpej Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by UCHIYAMA Yasushi.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <machine/bootinfo.h>
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#include <playstation2/ee/eevar.h>
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#include <playstation2/dev/sbusvar.h>
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#include <playstation2/dev/spdvar.h>
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#include <playstation2/dev/spdreg.h>
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#ifdef DEBUG
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#define STATIC
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#else
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#define STATIC static
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#endif
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STATIC int spd_match(struct device *, struct cfdata *, void *);
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STATIC void spd_attach(struct device *, struct device *, void *);
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STATIC int spd_print(void *, const char *);
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STATIC int spd_intr(void *);
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STATIC void __spd_eeprom_out(u_int8_t *, int);
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STATIC int __spd_eeprom_in(u_int8_t *);
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/* SPD device can't attach twice. because PS2 PC-Card slot is only one. */
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STATIC struct {
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int (*func)(void *);
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void *arg;
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const char *name;
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} __spd_table[2];
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CFATTACH_DECL(spd, sizeof(struct device),
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spd_match, spd_attach, NULL, NULL);
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#ifdef DEBUG
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#define LEGAL_SLOT(slot) ((slot) >= 0 && (slot) < 2)
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#endif
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int
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spd_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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return ((BOOTINFO_REF(BOOTINFO_DEVCONF) ==
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BOOTINFO_DEVCONF_SPD_PRESENT));
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}
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void
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spd_attach(struct device *parent, struct device *self, void *aux)
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{
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struct spd_attach_args spa;
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printf(": PlayStation 2 HDD Unit\n");
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switch (BOOTINFO_REF(BOOTINFO_PCMCIA_TYPE)) {
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default:
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__spd_table[0].name = "<unknown product>";
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break;
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case 0:
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/* FALLTHROUGH */
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case 1:
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/* FALLTHROUGH */
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case 2:
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__spd_table[SPD_HDD].name = "SCPH-20400";
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__spd_table[SPD_NIC].name = "SCPH-10190";
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break;
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case 3:
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__spd_table[SPD_HDD].name = "SCPH-10260";
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__spd_table[SPD_NIC].name = "SCPH-10260";
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break;
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}
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/* disable all */
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_reg_write_2(SPD_INTR_ENABLE_REG16, 0);
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_reg_write_2(SPD_INTR_CLEAR_REG16, _reg_read_2(SPD_INTR_STATUS_REG16));
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spa.spa_slot = SPD_HDD;
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spa.spa_product_name = __spd_table[SPD_HDD].name;
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config_found(self, &spa, spd_print);
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spa.spa_slot = SPD_NIC;
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spa.spa_product_name = __spd_table[SPD_NIC].name;
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config_found(self, &spa, spd_print);
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sbus_intr_establish(SBUS_IRQ_PCMCIA, spd_intr, 0);
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}
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int
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spd_print(void *aux, const char *pnp)
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{
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struct spd_attach_args *spa = aux;
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if (pnp)
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printf("%s at %s", __spd_table[spa->spa_slot].name, pnp);
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return (UNCONF);
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}
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int
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spd_intr(void *arg)
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{
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u_int16_t r;
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r = _reg_read_2(SPD_INTR_STATUS_REG16);
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/* HDD (SCPH-20400) */
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if ((r & SPD_INTR_HDD) != 0)
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if (__spd_table[SPD_HDD].func != NULL)
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(*__spd_table[SPD_HDD].func)(__spd_table[SPD_HDD].arg);
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/* Network (SCPH-10190) */
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if ((r & (SPD_INTR_EMAC3 | SPD_INTR_RXEND | SPD_INTR_TXEND |
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SPD_INTR_RXDNV | SPD_INTR_TXDNV)) != 0)
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if (__spd_table[SPD_NIC].func)
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(*__spd_table[SPD_NIC].func)(__spd_table[SPD_NIC].arg);
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/* reinstall */
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r = _reg_read_2(SPD_INTR_ENABLE_REG16);
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_reg_write_2(SPD_INTR_ENABLE_REG16, 0);
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_reg_write_2(SPD_INTR_ENABLE_REG16, r);
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return (1);
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}
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void *
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spd_intr_establish(enum spd_slot slot, int (*func)(void *), void *arg)
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{
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KDASSERT(LEGAL_SLOT(slot));
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KDASSERT(__spd_table[slot].func == 0);
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__spd_table[slot].func = func;
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__spd_table[slot].arg = arg;
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return ((void *)slot);
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}
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void
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spd_intr_disestablish(void *handle)
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{
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int slot = (int)handle;
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KDASSERT(LEGAL_SLOT(slot));
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__spd_table[slot].func = 0;
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}
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/*
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* EEPROM access
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*/
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void
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spd_eeprom_read(int addr, u_int16_t *data, int n)
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{
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int i, j, s;
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u_int8_t r;
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s = _intr_suspend();
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/* set direction */
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_reg_write_1(SPD_IO_DIR_REG8, SPD_IO_CLK | SPD_IO_CS | SPD_IO_IN);
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/* chip select high */
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r = 0;
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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r |= SPD_IO_CS;
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r &= ~(SPD_IO_IN | SPD_IO_CLK);
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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/* put start bit */
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__spd_eeprom_out(&r, 1);
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/* put op code (read) */
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__spd_eeprom_out(&r, 1);
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__spd_eeprom_out(&r, 0);
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/* set address */
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for (i = 0; i < 6; i++, addr <<= 1)
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__spd_eeprom_out(&r, addr & 0x20);
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/* get data */
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for (i = 0; i < n; i++, data++)
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for (*data = 0, j = 15; j >= 0; j--)
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*data |= (__spd_eeprom_in(&r) << j);
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/* chip select low */
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r &= ~(SPD_IO_CS | SPD_IO_IN | SPD_IO_CLK);
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(2);
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_intr_resume(s);
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}
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void
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__spd_eeprom_out(u_int8_t *rp, int onoff)
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{
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u_int8_t r = *rp;
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if (onoff)
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r |= SPD_IO_IN;
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else
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r &= ~SPD_IO_IN;
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r &= ~SPD_IO_CLK;
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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r |= SPD_IO_CLK;
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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r &= ~SPD_IO_CLK;
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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*rp = r;
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}
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int
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__spd_eeprom_in(u_int8_t *rp)
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{
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int ret;
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u_int8_t r = *rp;
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r &= ~(SPD_IO_IN | SPD_IO_CLK);
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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r |= SPD_IO_CLK;
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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ret = (_reg_read_1(SPD_IO_DATA_REG8) >> 4) & 0x1;
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r &= ~SPD_IO_CLK;
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_reg_write_1(SPD_IO_DATA_REG8, r);
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delay(1);
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*rp = r;
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return (ret);
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}
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