chipsfb_ofbus.c revision 1.1.2.2
1 1.1.2.2 rmind /* $NetBSD: chipsfb_ofbus.c,v 1.1.2.2 2011/04/21 01:41:24 rmind Exp $ */ 2 1.1.2.2 rmind 3 1.1.2.2 rmind /* 4 1.1.2.2 rmind * Copyright (c) 2006 Michael Lorenz 5 1.1.2.2 rmind * All rights reserved. 6 1.1.2.2 rmind * 7 1.1.2.2 rmind * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 rmind * modification, are permitted provided that the following conditions 9 1.1.2.2 rmind * are met: 10 1.1.2.2 rmind * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 rmind * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 rmind * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 rmind * documentation and/or other materials provided with the distribution. 15 1.1.2.2 rmind * 16 1.1.2.2 rmind * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.1.2.2 rmind * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.1.2.2 rmind * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.1.2.2 rmind * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.1.2.2 rmind * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 1.1.2.2 rmind * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 1.1.2.2 rmind * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 1.1.2.2 rmind * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 1.1.2.2 rmind * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 1.1.2.2 rmind * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 1.1.2.2 rmind */ 27 1.1.2.2 rmind 28 1.1.2.2 rmind /* 29 1.1.2.2 rmind * C&T 6555x series. 30 1.1.2.2 rmind * ofbus attachment for chipsfb 31 1.1.2.2 rmind */ 32 1.1.2.2 rmind 33 1.1.2.2 rmind #include <sys/cdefs.h> 34 1.1.2.2 rmind __KERNEL_RCSID(0, "$NetBSD: chipsfb_ofbus.c,v 1.1.2.2 2011/04/21 01:41:24 rmind Exp $"); 35 1.1.2.2 rmind 36 1.1.2.2 rmind #include <sys/param.h> 37 1.1.2.2 rmind #include <sys/systm.h> 38 1.1.2.2 rmind #include <sys/kernel.h> 39 1.1.2.2 rmind #include <sys/device.h> 40 1.1.2.2 rmind #include <sys/malloc.h> 41 1.1.2.2 rmind #include <sys/buf.h> 42 1.1.2.2 rmind #include <uvm/uvm.h> 43 1.1.2.2 rmind 44 1.1.2.2 rmind #include <machine/bus.h> 45 1.1.2.2 rmind #include <machine/intr.h> 46 1.1.2.2 rmind #include <machine/ofw.h> 47 1.1.2.2 rmind #include <machine/pmap.h> 48 1.1.2.2 rmind 49 1.1.2.2 rmind #include <dev/isa/isavar.h> 50 1.1.2.2 rmind 51 1.1.2.2 rmind #include <dev/wscons/wsdisplayvar.h> 52 1.1.2.2 rmind #include <dev/wscons/wsconsio.h> 53 1.1.2.2 rmind #include <dev/rasops/rasops.h> 54 1.1.2.2 rmind #include <dev/wscons/wsdisplay_vconsvar.h> 55 1.1.2.2 rmind #include <dev/ofw/openfirm.h> 56 1.1.2.2 rmind 57 1.1.2.2 rmind #include <dev/ic/ct65550reg.h> 58 1.1.2.2 rmind #include <dev/ic/ct65550var.h> 59 1.1.2.2 rmind #include <shark/ofw/igsfb_ofbusvar.h> 60 1.1.2.2 rmind 61 1.1.2.2 rmind static int chipsfb_ofbus_is_console(int); 62 1.1.2.2 rmind 63 1.1.2.2 rmind static int chipsfb_ofbus_console = 0; 64 1.1.2.2 rmind static int chipsfb_ofbus_phandle = 0; 65 1.1.2.2 rmind 66 1.1.2.2 rmind 67 1.1.2.2 rmind 68 1.1.2.2 rmind static int chipsfb_ofbus_match(device_t, struct cfdata *, void *); 69 1.1.2.2 rmind static void chipsfb_ofbus_attach(device_t, device_t, void *); 70 1.1.2.2 rmind static paddr_t chipsfb_ofbus_mmap(void *, void *, off_t, int); 71 1.1.2.2 rmind int chipsfb_ofbus_cnattach(bus_space_tag_t, bus_space_tag_t); 72 1.1.2.2 rmind 73 1.1.2.2 rmind CFATTACH_DECL_NEW(chipsfb_ofbus, sizeof(struct chipsfb_softc), 74 1.1.2.2 rmind chipsfb_ofbus_match, chipsfb_ofbus_attach, NULL, NULL); 75 1.1.2.2 rmind 76 1.1.2.2 rmind static const char const *compat_strings[] = { "CHPS,ct65550", NULL }; 77 1.1.2.2 rmind 78 1.1.2.2 rmind vaddr_t chipsfb_mem_vaddr = 0, chipsfb_mmio_vaddr = 0; 79 1.1.2.2 rmind paddr_t chipsfb_mem_paddr; 80 1.1.2.2 rmind extern paddr_t isa_io_physaddr; 81 1.1.2.2 rmind struct bus_space chipsfb_memt, chipsfb_iot; 82 1.1.2.2 rmind 83 1.1.2.2 rmind #if (NCHIPSFB_OFBUS > 0) || (NVGA_OFBUS > 0) 84 1.1.2.2 rmind extern int console_ihandle; 85 1.1.2.2 rmind #endif 86 1.1.2.2 rmind 87 1.1.2.2 rmind int 88 1.1.2.2 rmind chipsfb_ofbus_cnattach(bus_space_tag_t iot, bus_space_tag_t memt) 89 1.1.2.2 rmind { 90 1.1.2.2 rmind int chosen_phandle, ct_node; 91 1.1.2.2 rmind int stdout_ihandle, stdout_phandle; 92 1.1.2.2 rmind uint32_t regs[16]; 93 1.1.2.2 rmind //char mode_buffer[64]; 94 1.1.2.2 rmind 95 1.1.2.2 rmind stdout_phandle = 0; 96 1.1.2.2 rmind 97 1.1.2.2 rmind /* first find out if there's a ct65550 at all in this machine */ 98 1.1.2.2 rmind ct_node = OF_finddevice("/vlbus/display"); 99 1.1.2.2 rmind if (ct_node == -1) 100 1.1.2.2 rmind return ENXIO; 101 1.1.2.2 rmind if (of_compatible(ct_node, compat_strings) < 0) 102 1.1.2.2 rmind return ENXIO; 103 1.1.2.2 rmind 104 1.1.2.2 rmind /* 105 1.1.2.2 rmind * now we know there's a CyberPro in this machine so map it into 106 1.1.2.2 rmind * kernel space, even if it's not the console 107 1.1.2.2 rmind */ 108 1.1.2.2 rmind if (OF_getprop(ct_node, "reg", regs, sizeof(regs)) <= 0) 109 1.1.2.2 rmind return ENXIO; 110 1.1.2.2 rmind 111 1.1.2.2 rmind chipsfb_mem_paddr = be32toh(regs[10]); 112 1.1.2.2 rmind /* 2MB RAM aperture, bufferable and cacheable */ 113 1.1.2.2 rmind chipsfb_mem_vaddr = ofw_map(chipsfb_mem_paddr, 0x00200000, L2_B | L2_C); 114 1.1.2.2 rmind /* 128kB MMIO registers */ 115 1.1.2.2 rmind chipsfb_mmio_vaddr = ofw_map(chipsfb_mem_paddr + CT_OFF_BITBLT, 116 1.1.2.2 rmind 0x00020000, 0); 117 1.1.2.2 rmind 118 1.1.2.2 rmind memcpy(&chipsfb_memt, memt, sizeof(struct bus_space)); 119 1.1.2.2 rmind chipsfb_memt.bs_cookie = (void *)chipsfb_mem_vaddr; 120 1.1.2.2 rmind memcpy(&chipsfb_iot, memt, sizeof(struct bus_space)); 121 1.1.2.2 rmind chipsfb_iot.bs_cookie = (void *)chipsfb_mmio_vaddr; 122 1.1.2.2 rmind 123 1.1.2.2 rmind /* 124 1.1.2.2 rmind * check if the firmware output device is indeed the ct65550 125 1.1.2.2 rmind */ 126 1.1.2.2 rmind if ((chosen_phandle = OF_finddevice("/chosen")) == -1 || 127 1.1.2.2 rmind OF_getprop(chosen_phandle, "stdout", &stdout_ihandle, 128 1.1.2.2 rmind sizeof(stdout_ihandle)) != sizeof(stdout_ihandle)) { 129 1.1.2.2 rmind return ENXIO; 130 1.1.2.2 rmind } 131 1.1.2.2 rmind stdout_ihandle = of_decode_int((void *)&stdout_ihandle); 132 1.1.2.2 rmind stdout_phandle = OF_instance_to_package(stdout_ihandle); 133 1.1.2.2 rmind 134 1.1.2.2 rmind if (stdout_phandle != ct_node) 135 1.1.2.2 rmind return ENXIO; 136 1.1.2.2 rmind 137 1.1.2.2 rmind 138 1.1.2.2 rmind chipsfb_ofbus_console = 1; 139 1.1.2.2 rmind chipsfb_ofbus_phandle = stdout_phandle; 140 1.1.2.2 rmind #if (NCHIPSFB_OFBUS > 0) || (NVGA_OFBUS > 0) 141 1.1.2.2 rmind console_ihandle = stdout_ihandle; 142 1.1.2.2 rmind #endif 143 1.1.2.2 rmind /* we're all set, now let's wait for chipsfb to attach */ 144 1.1.2.2 rmind 145 1.1.2.2 rmind return 0; 146 1.1.2.2 rmind } 147 1.1.2.2 rmind 148 1.1.2.2 rmind static int 149 1.1.2.2 rmind chipsfb_ofbus_is_console(int phandle) 150 1.1.2.2 rmind { 151 1.1.2.2 rmind 152 1.1.2.2 rmind return chipsfb_ofbus_console && (phandle == chipsfb_ofbus_phandle); 153 1.1.2.2 rmind } 154 1.1.2.2 rmind 155 1.1.2.2 rmind 156 1.1.2.2 rmind static int 157 1.1.2.2 rmind chipsfb_ofbus_match(device_t parent, struct cfdata *match, void *aux) 158 1.1.2.2 rmind { 159 1.1.2.2 rmind struct ofbus_attach_args *oba = aux; 160 1.1.2.2 rmind 161 1.1.2.2 rmind if (of_compatible(oba->oba_phandle, compat_strings) < 0) 162 1.1.2.2 rmind return 0; 163 1.1.2.2 rmind 164 1.1.2.2 rmind return 10; /* beat vga etc. */ 165 1.1.2.2 rmind } 166 1.1.2.2 rmind 167 1.1.2.2 rmind static void 168 1.1.2.2 rmind chipsfb_ofbus_attach(device_t parent, device_t self, void *aux) 169 1.1.2.2 rmind { 170 1.1.2.2 rmind struct chipsfb_softc *sc = device_private(self); 171 1.1.2.2 rmind struct ofbus_attach_args *oba = aux; 172 1.1.2.2 rmind prop_dictionary_t dict; 173 1.1.2.2 rmind int isconsole, width, height, linebytes, depth; 174 1.1.2.2 rmind 175 1.1.2.2 rmind printf(": Chips & Technologies 65550 at 0x%08x\n", 176 1.1.2.2 rmind (uint32_t)chipsfb_mem_paddr); 177 1.1.2.2 rmind 178 1.1.2.2 rmind sc->sc_dev = self; 179 1.1.2.2 rmind sc->sc_memt = &chipsfb_memt; 180 1.1.2.2 rmind sc->sc_iot = &chipsfb_iot; 181 1.1.2.2 rmind sc->sc_fb = chipsfb_mem_paddr; 182 1.1.2.2 rmind sc->sc_fbsize = 0x00800000; /* 8MB aperture */ 183 1.1.2.2 rmind sc->sc_fbh = chipsfb_mem_vaddr; 184 1.1.2.2 rmind sc->sc_mmregh = chipsfb_mmio_vaddr; 185 1.1.2.2 rmind sc->sc_mmap = chipsfb_ofbus_mmap; 186 1.1.2.2 rmind sc->sc_ioctl = NULL; 187 1.1.2.2 rmind sc->memsize = 0x00200000; 188 1.1.2.2 rmind 189 1.1.2.2 rmind dict = device_properties(sc->sc_dev); 190 1.1.2.2 rmind if (OF_getprop(oba->oba_phandle, "width", &width, sizeof(width)) == 4) { 191 1.1.2.2 rmind width = be32toh(width); 192 1.1.2.2 rmind } else 193 1.1.2.2 rmind width = 640; 194 1.1.2.2 rmind if (OF_getprop(oba->oba_phandle, "height", &height, sizeof(height)) 195 1.1.2.2 rmind == 4) { 196 1.1.2.2 rmind height = be32toh(height); 197 1.1.2.2 rmind } else 198 1.1.2.2 rmind height = 480; 199 1.1.2.2 rmind if (OF_getprop(oba->oba_phandle, "depth", &depth, sizeof(depth)) == 4) { 200 1.1.2.2 rmind depth = be32toh(depth); 201 1.1.2.2 rmind } else 202 1.1.2.2 rmind depth = 8; 203 1.1.2.2 rmind if (OF_getprop(oba->oba_phandle, "linebytes", &linebytes, 204 1.1.2.2 rmind sizeof(linebytes)) == 4) { 205 1.1.2.2 rmind linebytes = be32toh(linebytes); 206 1.1.2.2 rmind } else 207 1.1.2.2 rmind linebytes = width * (depth >> 3); 208 1.1.2.2 rmind isconsole = chipsfb_ofbus_is_console(oba->oba_phandle); 209 1.1.2.2 rmind 210 1.1.2.2 rmind prop_dictionary_set_uint32(dict, "width", width); 211 1.1.2.2 rmind prop_dictionary_set_uint32(dict, "height", height); 212 1.1.2.2 rmind prop_dictionary_set_uint32(dict, "linebytes", linebytes); 213 1.1.2.2 rmind prop_dictionary_set_uint32(dict, "depth", depth); 214 1.1.2.2 rmind prop_dictionary_set_bool(dict, "is_console", isconsole); 215 1.1.2.2 rmind 216 1.1.2.2 rmind if (bus_space_map(sc->sc_iot, 0, 0x400, 0, &sc->sc_ioregh) != 0) { 217 1.1.2.2 rmind aprint_error("unable to map IO registers\n"); 218 1.1.2.2 rmind return; 219 1.1.2.2 rmind } 220 1.1.2.2 rmind chipsfb_do_attach(sc); 221 1.1.2.2 rmind } 222 1.1.2.2 rmind 223 1.1.2.2 rmind static paddr_t 224 1.1.2.2 rmind chipsfb_ofbus_mmap(void *v, void *vs, off_t offset, int prot) 225 1.1.2.2 rmind { 226 1.1.2.2 rmind 227 1.1.2.2 rmind #ifdef PCI_MAGIC_IO_RANGE 228 1.1.2.2 rmind /* access to IO ports */ 229 1.1.2.2 rmind if ((offset >= PCI_MAGIC_IO_RANGE) && 230 1.1.2.2 rmind (offset < (PCI_MAGIC_IO_RANGE + 0x10000))) { 231 1.1.2.2 rmind paddr_t pa; 232 1.1.2.2 rmind 233 1.1.2.2 rmind pa = isa_io_physaddr + offset - PCI_MAGIC_IO_RANGE; 234 1.1.2.2 rmind return arm_btop(pa); 235 1.1.2.2 rmind } 236 1.1.2.2 rmind #endif 237 1.1.2.2 rmind 238 1.1.2.2 rmind if ((offset >= chipsfb_mem_paddr) && 239 1.1.2.2 rmind (offset < (chipsfb_mem_paddr + CT_OFF_BITBLT))) { 240 1.1.2.2 rmind return (arm_btop(offset) | ARM32_MMAP_WRITECOMBINE); 241 1.1.2.2 rmind } else if ((offset >= (chipsfb_mem_paddr + CT_OFF_BITBLT)) && 242 1.1.2.2 rmind (offset < (chipsfb_mem_paddr + 0x00800000))) { 243 1.1.2.2 rmind return arm_btop(offset); 244 1.1.2.2 rmind } else if ((offset >= 0xa0000) && 245 1.1.2.2 rmind (offset < 0xbffff)) { 246 1.1.2.2 rmind return (arm_btop(offset) | ARM32_MMAP_WRITECOMBINE); 247 1.1.2.2 rmind } 248 1.1.2.2 rmind 249 1.1.2.2 rmind return -1; 250 1.1.2.2 rmind } 251
Indexes created Wed Oct 29 18:09:52 GMT 2025