1 /* $NetBSD: sif.c,v 1.1 2001/10/16 15:38:39 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 #include "debug_playstation2.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 44 #include <playstation2/playstation2/sifbios.h> 45 #include <playstation2/ee/dmacvar.h> 46 #include <playstation2/ee/sifvar.h> 47 48 #ifdef SIF_DEBUG 49 int __spd_total_alloc; 50 int sif_debug = 1; 51 #define DPRINTF(fmt, args...) \ 52 if (sif_debug) \ 53 printf("%s: " fmt, __FUNCTION__ , ##args) 54 #define DPRINTFN(n, arg) \ 55 if (sif_debug > (n)) \ 56 n printf("%s: " fmt, __FUNCTION__ , ##args) 57 #else 58 #define DPRINTF(arg...) ((void)0) 59 #define DPRINTFN(n, arg...) ((void)0) 60 #endif 61 62 #define ROUND64(x) ((((u_int32_t)(x)) + 63) & ~64) 63 #define BCD_TO_DECIMAL(x) \ 64 ({ \ 65 typeof(x) x_ = x; \ 66 (((x_) >> 4) * 10 + ((x_) & 0xf)); \ 67 }) 68 #define MAJOR(x) BCD_TO_DECIMAL(((x) >> 8) & 0xff) 69 #define MINOR(x) BCD_TO_DECIMAL((x) & 0xff) 70 71 void 72 sif_init() 73 { 74 u_int32_t version; 75 76 version = sifbios_getver(); 77 printf("PlayStation 2 SIF BIOS version %d.%d\n", 78 MAJOR(version), MINOR(version)); 79 80 /* Initialize SIF */ 81 if (sifdma_init() < 0) 82 panic("SIFDMA"); 83 if (sifcmd_init() < 0) 84 panic("SIFCMD"); 85 dmac_intr_establish(D_CH5_SIF0, IPL_TTY, sifcmd_intr, 0); 86 if (sifrpc_init() < 0) 87 panic("SIFRPC"); 88 if (iopmem_init() < 0) 89 panic("IOP Memory"); 90 } 91 92 void 93 sif_exit() 94 { 95 96 sifrpc_exit(); 97 sifcmd_exit(); 98 dmac_intr_disestablish((void *)D_CH5_SIF0); 99 sifdma_exit(); 100 } 101 102 int 103 iopdma_allocate_buffer(struct iopdma_segment *seg, size_t size) 104 { 105 /* 106 * To avoid cache inconsistecy as the result of DMA(to memory), 107 * DMA buffer size is setted to multiple of CPU cache line size (64B) 108 * and aligned to cache line. 109 */ 110 seg->size = ROUND64(size); 111 112 seg->iop_paddr = iopmem_alloc(seg->size); 113 114 if (seg->iop_paddr == NULL) { 115 printf("%s: can't allocate IOP memory.\n", __FUNCTION__); 116 DPRINTF("request = %d byte, current total = %#x\n", 117 size, __spd_total_alloc); 118 return (1); 119 } 120 121 seg->ee_vaddr = IOPPHYS_TO_EEKV(seg->iop_paddr); 122 123 #ifdef SIF_DEBUG 124 __spd_total_alloc += size; 125 #endif 126 DPRINTF("0x%08lx+%#x (total=%#x)\n", seg->iop_paddr, size, 127 __spd_total_alloc); 128 129 KDASSERT((seg->ee_vaddr & 63) == 0); 130 131 return (0); 132 } 133 134 void 135 iopdma_free_buffer(struct iopdma_segment *seg) 136 { 137 int ret; 138 139 ret = iopmem_free(seg->iop_paddr); 140 #ifdef SIF_DEBUG 141 __spd_total_alloc -= seg->size; 142 #endif 143 DPRINTF("0x%08lx (total=%#x, result=%d)\n", seg->iop_paddr, 144 __spd_total_alloc, ret); 145 } 146