1 /* $NetBSD: sif.c,v 1.10 2014/03/31 11:25:49 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: sif.c,v 1.10 2014/03/31 11:25:49 martin Exp $"); 34 35 #include "debug_playstation2.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 41 #include <playstation2/playstation2/sifbios.h> 42 #include <playstation2/ee/dmacvar.h> 43 #include <playstation2/ee/sifvar.h> 44 45 #ifdef SIF_DEBUG 46 int __spd_total_alloc; 47 int sif_debug = 1; 48 #define DPRINTF(fmt, args...) \ 49 if (sif_debug) \ 50 printf("%s: " fmt, __func__ , ##args) 51 #define DPRINTFN(n, arg) \ 52 if (sif_debug > (n)) \ 53 n printf("%s: " fmt, __func__ , ##args) 54 #else 55 #define DPRINTF(arg...) ((void)0) 56 #define DPRINTFN(n, arg...) ((void)0) 57 #endif 58 59 #define ROUND64(x) ((((u_int32_t)(x)) + 63) & ~64) 60 #define BCD_TO_DECIMAL(x) \ 61 ({ \ 62 typeof(x) x_ = x; \ 63 (((x_) >> 4) * 10 + ((x_) & 0xf)); \ 64 }) 65 #define MAJOR(x) BCD_TO_DECIMAL(((x) >> 8) & 0xff) 66 #define MINOR(x) BCD_TO_DECIMAL((x) & 0xff) 67 68 void 69 sif_init(void) 70 { 71 u_int32_t vers; 72 73 vers = sifbios_getver(); 74 printf("PlayStation 2 SIF BIOS version %d.%d\n", 75 MAJOR(vers), MINOR(vers)); 76 77 /* Initialize SIF */ 78 if (sifdma_init() < 0) 79 panic("SIFDMA"); 80 if (sifcmd_init() < 0) 81 panic("SIFCMD"); 82 dmac_intr_establish(D_CH5_SIF0, IPL_TTY, sifcmd_intr, 0); 83 if (sifrpc_init() < 0) 84 panic("SIFRPC"); 85 if (iopmem_init() < 0) 86 panic("IOP Memory"); 87 } 88 89 void 90 sif_exit(void) 91 { 92 93 sifrpc_exit(); 94 sifcmd_exit(); 95 dmac_intr_disestablish((void *)D_CH5_SIF0); 96 sifdma_exit(); 97 } 98 99 int 100 iopdma_allocate_buffer(struct iopdma_segment *seg, size_t size) 101 { 102 /* 103 * To avoid cache inconsistecy as the result of DMA(to memory), 104 * DMA buffer size is setted to multiple of CPU cache line size (64B) 105 * and aligned to cache line. 106 */ 107 seg->size = ROUND64(size); 108 109 seg->iop_paddr = iopmem_alloc(seg->size); 110 111 if (seg->iop_paddr == 0) { 112 printf("%s: can't allocate IOP memory.\n", __func__); 113 DPRINTF("request = %d byte, current total = %#x\n", 114 size, __spd_total_alloc); 115 return (1); 116 } 117 118 seg->ee_vaddr = IOPPHYS_TO_EEKV(seg->iop_paddr); 119 120 #ifdef SIF_DEBUG 121 __spd_total_alloc += size; 122 #endif 123 DPRINTF("0x%08lx+%#x (total=%#x)\n", seg->iop_paddr, size, 124 __spd_total_alloc); 125 126 KDASSERT((seg->ee_vaddr & 63) == 0); 127 128 return (0); 129 } 130 131 void 132 iopdma_free_buffer(struct iopdma_segment *seg) 133 { 134 int ret; 135 136 ret = iopmem_free(seg->iop_paddr); 137 #ifdef SIF_DEBUG 138 __spd_total_alloc -= seg->size; 139 #endif 140 DPRINTF("0x%08lx (total=%#x, result=%d)\n", seg->iop_paddr, 141 __spd_total_alloc, ret); 142 } 143