j720kbd.c revision 1.2.4.3
1 1.2.4.3 yamt /* $NetBSD: j720kbd.c,v 1.2.4.3 2006/12/30 20:46:02 yamt Exp $ */ 2 1.2.4.2 yamt 3 1.2.4.2 yamt /*- 4 1.2.4.2 yamt * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 1.2.4.2 yamt * All rights reserved. 6 1.2.4.2 yamt * 7 1.2.4.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.2.4.2 yamt * by IWAMOTO Toshihiro and Peter Postma. 9 1.2.4.2 yamt * 10 1.2.4.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.4.2 yamt * modification, are permitted provided that the following conditions 12 1.2.4.2 yamt * are met: 13 1.2.4.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.4.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.4.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.4.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.2.4.2 yamt * must display the following acknowledgement: 20 1.2.4.2 yamt * This product includes software developed by the NetBSD 21 1.2.4.2 yamt * Foundation, Inc. and its contributors. 22 1.2.4.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.4.2 yamt * contributors may be used to endorse or promote products derived 24 1.2.4.2 yamt * from this software without specific prior written permission. 25 1.2.4.2 yamt * 26 1.2.4.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.4.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.4.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.4.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.4.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.4.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.4.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.4.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.4.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.4.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.4.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.2.4.2 yamt */ 38 1.2.4.2 yamt 39 1.2.4.2 yamt /* Jornada 720 keyboard driver. */ 40 1.2.4.2 yamt 41 1.2.4.2 yamt #include <sys/cdefs.h> 42 1.2.4.3 yamt __KERNEL_RCSID(0, "$NetBSD: j720kbd.c,v 1.2.4.3 2006/12/30 20:46:02 yamt Exp $"); 43 1.2.4.2 yamt 44 1.2.4.2 yamt #include <sys/param.h> 45 1.2.4.2 yamt #include <sys/systm.h> 46 1.2.4.2 yamt #include <sys/device.h> 47 1.2.4.2 yamt #include <sys/kernel.h> 48 1.2.4.2 yamt 49 1.2.4.2 yamt #include <machine/bootinfo.h> 50 1.2.4.2 yamt #include <machine/config_hook.h> 51 1.2.4.2 yamt #include <machine/platid.h> 52 1.2.4.2 yamt #include <machine/platid_mask.h> 53 1.2.4.2 yamt 54 1.2.4.2 yamt #include <arm/sa11x0/sa11x0_var.h> 55 1.2.4.2 yamt #include <arm/sa11x0/sa11x0_gpioreg.h> 56 1.2.4.2 yamt #include <arm/sa11x0/sa11x0_ppcreg.h> 57 1.2.4.2 yamt #include <arm/sa11x0/sa11x0_sspreg.h> 58 1.2.4.2 yamt 59 1.2.4.2 yamt #include <dev/hpc/hpckbdvar.h> 60 1.2.4.2 yamt 61 1.2.4.2 yamt #include <hpcarm/dev/j720sspvar.h> 62 1.2.4.2 yamt 63 1.2.4.2 yamt #ifdef DEBUG 64 1.2.4.2 yamt #define DPRINTF(arg) printf arg 65 1.2.4.2 yamt #else 66 1.2.4.2 yamt #define DPRINTF(arg) /* nothing */ 67 1.2.4.2 yamt #endif 68 1.2.4.2 yamt 69 1.2.4.2 yamt struct j720kbd_chip { 70 1.2.4.2 yamt int scc_enabled; 71 1.2.4.2 yamt 72 1.2.4.2 yamt struct j720ssp_softc *scc_ssp; 73 1.2.4.2 yamt 74 1.2.4.2 yamt struct hpckbd_ic_if scc_if; 75 1.2.4.2 yamt struct hpckbd_if *scc_hpckbd; 76 1.2.4.2 yamt }; 77 1.2.4.2 yamt 78 1.2.4.2 yamt struct j720kbd_softc { 79 1.2.4.2 yamt struct device sc_dev; 80 1.2.4.2 yamt 81 1.2.4.2 yamt struct j720kbd_chip *sc_chip; 82 1.2.4.2 yamt }; 83 1.2.4.2 yamt 84 1.2.4.2 yamt static struct j720kbd_chip j720kbd_chip; 85 1.2.4.2 yamt 86 1.2.4.2 yamt static int j720kbd_match(struct device *, struct cfdata *, void *); 87 1.2.4.2 yamt static void j720kbd_attach(struct device *, struct device *, void *); 88 1.2.4.2 yamt 89 1.2.4.2 yamt static void j720kbd_cnattach(void); 90 1.2.4.2 yamt static void j720kbd_ifsetup(struct j720kbd_chip *); 91 1.2.4.2 yamt static int j720kbd_input_establish(void *, struct hpckbd_if *); 92 1.2.4.2 yamt static int j720kbd_intr(void *); 93 1.2.4.2 yamt static int j720kbd_poll(void *); 94 1.2.4.2 yamt static void j720kbd_read(struct j720kbd_chip *, char *); 95 1.2.4.2 yamt 96 1.2.4.2 yamt CFATTACH_DECL(j720kbd, sizeof(struct j720kbd_softc), 97 1.2.4.2 yamt j720kbd_match, j720kbd_attach, NULL, NULL); 98 1.2.4.2 yamt 99 1.2.4.2 yamt 100 1.2.4.2 yamt static int 101 1.2.4.2 yamt j720kbd_match(struct device *parent, struct cfdata *cf, void *aux) 102 1.2.4.2 yamt { 103 1.2.4.2 yamt 104 1.2.4.2 yamt if (!platid_match(&platid, &platid_mask_MACH_HP_JORNADA_7XX)) 105 1.2.4.2 yamt return 0; 106 1.2.4.2 yamt if (strcmp(cf->cf_name, "j720kbd") != 0) 107 1.2.4.2 yamt return 0; 108 1.2.4.2 yamt 109 1.2.4.2 yamt return 1; 110 1.2.4.2 yamt } 111 1.2.4.2 yamt 112 1.2.4.2 yamt static void 113 1.2.4.2 yamt j720kbd_attach(struct device *parent, struct device *self, void *aux) 114 1.2.4.2 yamt { 115 1.2.4.2 yamt struct j720kbd_softc *sc = (void *)self; 116 1.2.4.2 yamt struct hpckbd_attach_args haa; 117 1.2.4.2 yamt 118 1.2.4.2 yamt printf("\n"); 119 1.2.4.2 yamt 120 1.2.4.2 yamt sc->sc_chip = &j720kbd_chip; 121 1.2.4.2 yamt sc->sc_chip->scc_ssp = (struct j720ssp_softc *)parent; 122 1.2.4.2 yamt sc->sc_chip->scc_enabled = 0; 123 1.2.4.2 yamt 124 1.2.4.2 yamt /* Attach console if not using serial. */ 125 1.2.4.2 yamt if (!(bootinfo->bi_cnuse & BI_CNUSE_SERIAL)) 126 1.2.4.2 yamt j720kbd_cnattach(); 127 1.2.4.2 yamt 128 1.2.4.2 yamt j720kbd_ifsetup(sc->sc_chip); 129 1.2.4.2 yamt 130 1.2.4.2 yamt /* Install interrupt handler. */ 131 1.2.4.2 yamt sa11x0_intr_establish(0, 0, 1, IPL_TTY, j720kbd_intr, sc); 132 1.2.4.2 yamt 133 1.2.4.2 yamt /* Attach hpckbd. */ 134 1.2.4.2 yamt haa.haa_ic = &sc->sc_chip->scc_if; 135 1.2.4.2 yamt config_found(self, &haa, hpckbd_print); 136 1.2.4.2 yamt } 137 1.2.4.2 yamt 138 1.2.4.2 yamt static void 139 1.2.4.2 yamt j720kbd_cnattach(void) 140 1.2.4.2 yamt { 141 1.2.4.2 yamt struct j720kbd_chip *scc = &j720kbd_chip; 142 1.2.4.2 yamt 143 1.2.4.2 yamt /* Initialize interface. */ 144 1.2.4.2 yamt j720kbd_ifsetup(scc); 145 1.2.4.2 yamt 146 1.2.4.2 yamt /* Attach console. */ 147 1.2.4.2 yamt hpckbd_cnattach(&scc->scc_if); 148 1.2.4.2 yamt } 149 1.2.4.2 yamt 150 1.2.4.2 yamt static void 151 1.2.4.2 yamt j720kbd_ifsetup(struct j720kbd_chip *scc) 152 1.2.4.2 yamt { 153 1.2.4.2 yamt 154 1.2.4.2 yamt scc->scc_if.hii_ctx = scc; 155 1.2.4.2 yamt scc->scc_if.hii_establish = j720kbd_input_establish; 156 1.2.4.2 yamt scc->scc_if.hii_poll = j720kbd_poll; 157 1.2.4.2 yamt } 158 1.2.4.2 yamt 159 1.2.4.2 yamt static int 160 1.2.4.2 yamt j720kbd_input_establish(void *ic, struct hpckbd_if *kbdif) 161 1.2.4.2 yamt { 162 1.2.4.2 yamt struct j720kbd_chip *scc = ic; 163 1.2.4.2 yamt 164 1.2.4.2 yamt /* Save hpckbd interface. */ 165 1.2.4.2 yamt scc->scc_hpckbd = kbdif; 166 1.2.4.2 yamt 167 1.2.4.2 yamt scc->scc_enabled = 1; 168 1.2.4.2 yamt 169 1.2.4.2 yamt return 0; 170 1.2.4.2 yamt } 171 1.2.4.2 yamt 172 1.2.4.2 yamt static int 173 1.2.4.2 yamt j720kbd_intr(void *arg) 174 1.2.4.2 yamt { 175 1.2.4.2 yamt struct j720kbd_softc *sc = arg; 176 1.2.4.2 yamt struct j720ssp_softc *ssp = sc->sc_chip->scc_ssp; 177 1.2.4.2 yamt 178 1.2.4.2 yamt bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_EDR, 1); 179 1.2.4.2 yamt 180 1.2.4.2 yamt return j720kbd_poll(sc->sc_chip); 181 1.2.4.2 yamt } 182 1.2.4.2 yamt 183 1.2.4.2 yamt static int 184 1.2.4.2 yamt j720kbd_poll(void *arg) 185 1.2.4.2 yamt { 186 1.2.4.2 yamt struct j720kbd_chip *scc = arg; 187 1.2.4.2 yamt int type, key; 188 1.2.4.2 yamt char buf[9], *p; 189 1.2.4.2 yamt 190 1.2.4.2 yamt if (!scc->scc_enabled) { 191 1.2.4.2 yamt DPRINTF(("j720kbd_poll: !scc_enabled\n")); 192 1.2.4.2 yamt return 0; 193 1.2.4.2 yamt } 194 1.2.4.2 yamt 195 1.2.4.2 yamt j720kbd_read(scc, buf); 196 1.2.4.2 yamt 197 1.2.4.2 yamt for (p = buf; *p; p++) { 198 1.2.4.2 yamt type = *p & 0x80 ? 0 : 1; 199 1.2.4.2 yamt key = *p & 0x7f; 200 1.2.4.2 yamt 201 1.2.4.2 yamt hpckbd_input(scc->scc_hpckbd, type, key); 202 1.2.4.2 yamt } 203 1.2.4.2 yamt 204 1.2.4.2 yamt return 1; 205 1.2.4.2 yamt } 206 1.2.4.2 yamt 207 1.2.4.2 yamt static void 208 1.2.4.2 yamt j720kbd_read(struct j720kbd_chip *scc, char *buf) 209 1.2.4.2 yamt { 210 1.2.4.2 yamt struct j720ssp_softc *ssp = scc->scc_ssp; 211 1.2.4.2 yamt int data, count; 212 1.2.4.2 yamt 213 1.2.4.2 yamt bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PCR, 0x2000000); 214 1.2.4.2 yamt 215 1.2.4.2 yamt /* Send scan keycode command. */ 216 1.2.4.3 yamt if (j720ssp_readwrite(ssp, 1, 0x90, &data, 500) < 0 || data != 0x11) { 217 1.2.4.2 yamt DPRINTF(("j720kbd_read: no dummy received\n")); 218 1.2.4.2 yamt goto out; 219 1.2.4.2 yamt } 220 1.2.4.2 yamt 221 1.2.4.2 yamt /* Read number of scancodes available. */ 222 1.2.4.3 yamt if (j720ssp_readwrite(ssp, 0, 0x11, &data, 500) < 0) { 223 1.2.4.2 yamt DPRINTF(("j720kbd_read: unable to read number of scancodes\n")); 224 1.2.4.2 yamt goto out; 225 1.2.4.2 yamt } 226 1.2.4.2 yamt count = data; 227 1.2.4.2 yamt 228 1.2.4.2 yamt for (; count; count--) { 229 1.2.4.3 yamt if (j720ssp_readwrite(ssp, 0, 0x11, &data, 100) < 0) 230 1.2.4.2 yamt goto out; 231 1.2.4.2 yamt *buf++ = data; 232 1.2.4.2 yamt } 233 1.2.4.2 yamt *buf = 0; 234 1.2.4.2 yamt bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PSR, 0x2000000); 235 1.2.4.2 yamt 236 1.2.4.2 yamt return; 237 1.2.4.2 yamt 238 1.2.4.2 yamt out: 239 1.2.4.2 yamt *buf = 0; 240 1.2.4.2 yamt bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PSR, 0x2000000); 241 1.2.4.2 yamt 242 1.2.4.2 yamt /* reset SSP */ 243 1.2.4.2 yamt bus_space_write_4(ssp->sc_iot, ssp->sc_ssph, SASSP_CR0, 0x307); 244 1.2.4.2 yamt delay(100); 245 1.2.4.2 yamt bus_space_write_4(ssp->sc_iot, ssp->sc_ssph, SASSP_CR0, 0x387); 246 1.2.4.2 yamt 247 1.2.4.2 yamt DPRINTF(("j720kbd_read: error %x\n", data)); 248 1.2.4.2 yamt } 249
Indexes created Thu Oct 02 07:10:07 GMT 2025