/* $NetBSD: pfckbd.c,v 1.15 2005/05/23 17:49:48 kiyohara Exp $ */ /*- * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by UCHIYAMA Yasushi. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: pfckbd.c,v 1.15 2005/05/23 17:49:48 kiyohara Exp $"); #include "debug_hpcsh.h" #include #include #include #include #include #include #include #include #include #include #ifdef PFCKBD_DEBUG #define DPRINTF_ENABLE #define DPRINTF_DEBUG pfckbd_debug #endif #include STATIC int pfckbd_match(struct device *, struct cfdata *, void *); STATIC void pfckbd_attach(struct device *, struct device *, void *); STATIC void (*pfckbd_callout_lookup(void))(void *); STATIC void pfckbd_callout_unknown(void *); STATIC void pfckbd_callout_hp(void *); STATIC void pfckbd_callout_hitachi(void *); STATIC struct pfckbd_core { int pc_attached; int pc_enabled; struct callout pc_soft_ch; struct hpckbd_ic_if pc_if; struct hpckbd_if *pc_hpckbd; uint16_t pc_column[8]; void (*pc_callout)(void *); } pfckbd_core; /* callout function table. this function is platfrom specific. */ STATIC const struct { platid_mask_t *platform; void (*func)(void *); } pfckbd_calloutfunc_table[] = { { &platid_mask_MACH_HP , pfckbd_callout_hp }, { &platid_mask_MACH_HITACHI , pfckbd_callout_hitachi } }; CFATTACH_DECL(pfckbd, sizeof(struct device), pfckbd_match, pfckbd_attach, NULL, NULL); STATIC int pfckbd_poll(void *); STATIC void pfckbd_ifsetup(struct pfckbd_core *); STATIC int pfckbd_input_establish(void *, struct hpckbd_if *); STATIC void pfckbd_input(struct hpckbd_if *, uint16_t *, uint16_t, int); /* * Matrix scan keyboard connected to SH7709, SH7709A PFC module. * currently, HP Jornada 680/690, HITACHI PERSONA HPW-50PAD only. */ void pfckbd_cnattach() { struct pfckbd_core *pc = &pfckbd_core; if ((cpu_product != CPU_PRODUCT_7709) && (cpu_product != CPU_PRODUCT_7709A)) return; /* initialize interface */ pfckbd_ifsetup(pc); /* attach console */ hpckbd_cnattach(&pc->pc_if); } int pfckbd_match(struct device *parent, struct cfdata *cf, void *aux) { if ((cpu_product != CPU_PRODUCT_7709) && (cpu_product != CPU_PRODUCT_7709A)) return (0); return (!pfckbd_core.pc_attached); } void pfckbd_attach(struct device *parent, struct device *self, void *aux) { struct hpckbd_attach_args haa; printf("\n"); /* pfckbd is singleton. no more attach */ pfckbd_core.pc_attached = 1; pfckbd_ifsetup(&pfckbd_core); /* attach hpckbd */ haa.haa_ic = &pfckbd_core.pc_if; /* tell the hpckbd to my interface */ config_found(self, &haa, hpckbd_print); /* install callout handler */ callout_init(&pfckbd_core.pc_soft_ch); callout_reset(&pfckbd_core.pc_soft_ch, 1, pfckbd_core.pc_callout, &pfckbd_core); } int pfckbd_input_establish(void *ic, struct hpckbd_if *kbdif) { struct pfckbd_core *pc = ic; /* save hpckbd interface */ pc->pc_hpckbd = kbdif; /* ok to transact hpckbd */ pc->pc_enabled = 1; return 0; } int pfckbd_poll(void *arg) { struct pfckbd_core *pc = arg; if (pc->pc_enabled) (*pc->pc_callout)(arg); return 0; } void pfckbd_ifsetup(struct pfckbd_core *pc) { int i; pc->pc_if.hii_ctx = pc; pc->pc_if.hii_establish = pfckbd_input_establish; pc->pc_if.hii_poll = pfckbd_poll; for (i = 0; i < 8; i++) pc->pc_column[i] = 0xdfff; /* select PFC access method */ pc->pc_callout = pfckbd_callout_lookup(); } void pfckbd_input(struct hpckbd_if *hpckbd, uint16_t *buf, uint16_t data, int column) { int row, type, val; uint16_t edge, mask; if ((edge = (data ^ buf[column]))) { buf[column] = data; for (row = 0, mask = 1; row < 16; row++, mask <<= 1) { if (mask & edge) { type = mask & data ? 0 : 1; val = row * 8 + column; DPRINTF("(%2d, %2d) %d \n", row, column, type); hpckbd_input(hpckbd, type, val); } } } } /* * Platform dependent routines. */ /* Look up appropriate callback handler */ void (*pfckbd_callout_lookup())(void *) { int i, n = sizeof(pfckbd_calloutfunc_table) / sizeof(pfckbd_calloutfunc_table[0]); for (i = 0; i < n; i++) if (platid_match(&platid, pfckbd_calloutfunc_table[i].platform)) return (pfckbd_calloutfunc_table[i].func); return (pfckbd_callout_unknown); } /* Placeholder for unknown platform */ void pfckbd_callout_unknown(void *arg) { printf("%s: unknown keyboard switch\n", __FUNCTION__); } /* HP Jornada680/690, HP620LX */ void pfckbd_callout_hp(void *arg) { #define PFCKBD_HP_PDCR_MASK 0xcc0c #define PFCKBD_HP_PECR_MASK 0xf0cf /* * Disable output on all lines but the n'th line in D. * Pull the n'th scan line in D low. */ #define PD(n) \ { (uint16_t)(PFCKBD_HP_PDCR_MASK & (~(1 << (2*(n)+1)))), \ (uint16_t)(PFCKBD_HP_PECR_MASK & 0xffff), \ (uint8_t)~(1 << (n)), \ 0xff } /* Ditto for E */ #define PE(n) \ { (uint16_t)(PFCKBD_HP_PDCR_MASK & 0xffff), \ (uint16_t)(PFCKBD_HP_PECR_MASK & (~(1 << (2*(n)+1)))), \ 0xff, \ (uint8_t)~(1 << (n)) } static const struct { uint16_t dc, ec; uint8_t d, e; } scan[] = { PD(1), PD(5), PE(1), PE(6), PE(7), PE(3), PE(0), PD(7) }; #undef PD #undef PE struct pfckbd_core *pc = arg; uint16_t dc, ec; int column; uint16_t data; if (!pc->pc_enabled) goto reinstall; /* bits in D/E control regs we do not touch (XXX: can they change?) */ dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HP_PDCR_MASK; ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HP_PECR_MASK; for (column = 0; column < 8; column++) { /* disable output to all lines except the one we scan */ _reg_write_2(SH7709_PDCR, dc | scan[column].dc); _reg_write_2(SH7709_PECR, ec | scan[column].ec); delay(5); /* pull the scan line low */ _reg_write_1(SH7709_PDDR, scan[column].d); _reg_write_1(SH7709_PEDR, scan[column].e); delay(50); /* read sense */ data = _reg_read_1(SH7709_PFDR) | (_reg_read_1(SH7709_PCDR) << 8); pfckbd_input(pc->pc_hpckbd, pc->pc_column, data, column); } /* scan no lines */ _reg_write_1(SH7709_PDDR, 0xff); _reg_write_1(SH7709_PEDR, 0xff); /* enable all scan lines */ _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HP_PDCR_MASK)); _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HP_PECR_MASK)); #if 0 /* (ignore) extra keys/events (recorder buttons, lid, cable &c) */ data = _reg_read_1(SH7709_PGDR) | (_reg_read_1(SH7709_PHDR) << 8); #endif reinstall: callout_schedule(&pc->pc_soft_ch, 1); } /* HITACH PERSONA (HPW-50PAD) */ void pfckbd_callout_hitachi(void *arg) { #define PFCKBD_HITACHI_PCCR_MASK 0xfff3 #define PFCKBD_HITACHI_PDCR_MASK 0x000c #define PFCKBD_HITACHI_PECR_MASK 0x30cf #define PFCKBD_HITACHI_PCDR_SCN_MASK 0xfd #define PFCKBD_HITACHI_PDDR_SCN_MASK 0xf7 #define PFCKBD_HITACHI_PEDR_SCN_MASK 0xff #define PFCKBD_HITACHI_PCDR_SNS_MASK 0x01 #define PFCKBD_HITACHI_PFDR_SNS_MASK 0xfe /* * Disable output on all lines but the n'th line in C. * Pull the n'th scan line in C low. */ #define PC(n) \ { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & (~(1 << (2*(n)+1)))), \ (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ (uint8_t)(PFCKBD_HITACHI_PCDR_SCN_MASK & ~(1 << (n))), \ PFCKBD_HITACHI_PDDR_SCN_MASK, \ PFCKBD_HITACHI_PEDR_SCN_MASK } /* Ditto for D */ #define PD(n) \ { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & (~(1 << (2*(n)+1)))), \ (uint16_t)(PFCKBD_HITACHI_PECR_MASK & 0xffff), \ PFCKBD_HITACHI_PCDR_SCN_MASK, \ (uint8_t)(PFCKBD_HITACHI_PDDR_SCN_MASK & ~(1 << (n))), \ PFCKBD_HITACHI_PEDR_SCN_MASK } /* Ditto for E */ #define PE(n) \ { (uint16_t)(PFCKBD_HITACHI_PCCR_MASK & 0xffff), \ (uint16_t)(PFCKBD_HITACHI_PDCR_MASK & 0xffff), \ (uint16_t)(PFCKBD_HITACHI_PECR_MASK & (~(1 << (2*(n)+1)))), \ PFCKBD_HITACHI_PCDR_SCN_MASK, \ PFCKBD_HITACHI_PDDR_SCN_MASK, \ (uint8_t)(PFCKBD_HITACHI_PEDR_SCN_MASK & ~(1 << (n))) } static const struct { uint16_t cc, dc, ec; uint8_t c, d, e; } scan[] = { PE(6), PE(3), PE(1), PE(0), PC(7), PC(6), PC(5), PC(4), PC(3), PC(2), PD(1), PC(0) }; #undef PC #undef PD #undef PE struct pfckbd_core *pc = arg; uint16_t cc, dc, ec; uint8_t data[2], cd, dd, ed; int i; if (!pc->pc_enabled) goto reinstall; /* bits in C/D/E control regs we do not touch (XXX: can they change?) */ cc = _reg_read_2(SH7709_PCCR) & ~PFCKBD_HITACHI_PCCR_MASK; dc = _reg_read_2(SH7709_PDCR) & ~PFCKBD_HITACHI_PDCR_MASK; ec = _reg_read_2(SH7709_PECR) & ~PFCKBD_HITACHI_PECR_MASK; cd = _reg_read_1(SH7709_PCDR); dd = _reg_read_1(SH7709_PDDR); ed = _reg_read_1(SH7709_PEDR); for (i = 0; i < 12; i++) { /* disable output to all lines except the one we scan */ _reg_write_2(SH7709_PCCR, cc | scan[i].cc); _reg_write_2(SH7709_PDCR, dc | scan[i].dc); _reg_write_2(SH7709_PECR, ec | scan[i].ec); delay(5); /* pull the scan line low */ _reg_write_1(SH7709_PCDR, scan[i].c); _reg_write_1(SH7709_PDDR, scan[i].d); _reg_write_1(SH7709_PEDR, scan[i].e); delay(50); /* read sense */ data[i & 0x1] = ((_reg_read_1(SH7709_PCDR) & PFCKBD_HITACHI_PCDR_SNS_MASK) | (_reg_read_1(SH7709_PFDR) & PFCKBD_HITACHI_PFDR_SNS_MASK)); if (i & 0x1) pfckbd_input(pc->pc_hpckbd, pc->pc_column, (data[0] | (data[1] << 8)), (i >> 1)); } /* scan no lines */ _reg_write_1(SH7709_PCDR, cd); _reg_write_1(SH7709_PDDR, dd); _reg_write_1(SH7709_PEDR, ed); /* enable all scan lines */ _reg_write_2(SH7709_PCCR, cc | (0x5555 & PFCKBD_HITACHI_PCCR_MASK)); _reg_write_2(SH7709_PDCR, dc | (0x5555 & PFCKBD_HITACHI_PDCR_MASK)); _reg_write_2(SH7709_PECR, ec | (0x5555 & PFCKBD_HITACHI_PECR_MASK)); reinstall: callout_schedule(&pc->pc_soft_ch, 1); }