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Diffstat (limited to 'chips/isdn_79c30_hdw.c')
| -rw-r--r-- | chips/isdn_79c30_hdw.c | 602 |
1 files changed, 0 insertions, 602 deletions
diff --git a/chips/isdn_79c30_hdw.c b/chips/isdn_79c30_hdw.c deleted file mode 100644 index 769d1cb..0000000 --- a/chips/isdn_79c30_hdw.c +++ /dev/null @@ -1,602 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1992 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ -/* - * File: isdn_79c30_hdw.c - * Author: Alessandro Forin, Carnegie Mellon University - * Date: 1/92 - * - * Driver for the AMD 79c30 ISDN (Integrated Speech and - * Data Network) controller chip. - */ - -/*- - * Copyright (c) 1991, 1992 The Regents of the University of California. - * All rights reserved. - * - * 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 Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. The name of the Laboratory may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 <isdn.h> -#if NISDN > 0 - -#include <platforms.h> - -#include <mach/std_types.h> -#include <machine/machspl.h> -#include <sys/ioctl.h> /* for Sun compat */ -#include <chips/busses.h> - -#include <device/device_types.h> -#include <device/io_req.h> -#include <device/audio_status.h> -#include <chips/audio_defs.h> - -#include <chips/isdn_79c30.h> - -#include <chips/audio_config.h> /* machdep config */ - -#define private static - -/* - * Autoconf info - */ -private int isdn_probe (vm_offset_t reg, struct bus_ctlr *ui); -private void isdn_attach ( struct bus_device *ui); - -private vm_offset_t isdn_std[NISDN] = { 0 }; -private struct bus_device *isdn_info[NISDN]; - -struct bus_driver isdn_driver = - { isdn_probe, 0, isdn_attach, 0, isdn_std, "isdn", isdn_info, }; - - -/* - * Externally visible functions and data - */ -int isdn_intr(); - - -/* - * Status bookeeping and globals - */ -typedef struct { - amd79c30_padded_regs_t *regs; - void *audio_status; /* for upcalls */ - struct mapreg sc_map; /* MAP status */ - /* - * keep track of levels so we don't have to convert back from - * MAP gain constants - */ - int sc_rlevel; /* record level */ - int sc_plevel; /* play level */ - int sc_mlevel; /* monitor level */ -} isdn_softc_t; - -isdn_softc_t isdn_softc_data[NISDN]; -isdn_softc_t *isdn_softc[NISDN]; - -private int audio_default_level = 150; - - -/* - * Forward decls - */ -audio_switch_t isdn_ops; - -private void isdn_init( isdn_softc_t *sc ); - -private void isdn_set_mmr2( - register amd79c30_padded_regs_t *regs, - register int mmr2); - -private void isdn_setgains( - isdn_softc_t *sc, - int pgain, - int rgain, - int mgain); - -/* - * Probe chip to see if it is there - */ -private isdn_probe( - vm_offset_t reg, - struct bus_ctlr *ui) -{ - isdn_softc_t *sc = &isdn_softc_data[ui->unit]; - - isdn_softc[ui->unit] = sc; - sc->regs = (amd79c30_padded_regs_t *)reg; - - return 1; -} - -/* - * Attach device to chip-indep driver(s) - */ -private void -isdn_attach( - struct bus_device *ui) -{ - register isdn_softc_t *sc = isdn_softc[ui->unit]; - register amd79c30_padded_regs_t *regs = sc->regs; - - /* disable interrupts */ - write_reg(regs->cr, AMDR_INIT); - write_reg(regs->dr, AMD_INIT_PMS_ACTIVE | AMD_INIT_INT_DISABLE); - - /* - * Initialize the mux unit. We use MCR3 to route audio (MAP) - * through channel Bb. MCR1 and MCR2 are unused. - * Setting the INT enable bit in MCR4 will generate an interrupt - * on each converted audio sample. - */ - write_reg(regs->cr, AMDR_MUX_1_4); - write_reg(regs->dr, 0); - write_reg(regs->dr, 0); - write_reg(regs->dr, (AMD_MCRCHAN_BB << 4) | AMD_MCRCHAN_BA); - write_reg(regs->dr, AMD_MCR4_INT_ENABLE); - - printf(" AMD 79C30A/79C32A"); - - audio_attach( sc, &isdn_ops, &sc->audio_status ); -} - -/* - * Chip re-initialization - */ -private void -isdn_init( - isdn_softc_t *sc) -{ - register amd79c30_padded_regs_t *regs; - - bzero((char *)&sc->sc_map, sizeof sc->sc_map); - /* default to speaker */ - sc->sc_map.mr_mmr2 = AMD_MMR2_AINB | AMD_MMR2_LS; - - /* enable interrupts and set parameters established above */ - regs = sc->regs; - isdn_set_mmr2 (regs, sc->sc_map.mr_mmr2); - isdn_setgains (sc, audio_default_level, audio_default_level, 0); - write_reg(regs->cr, AMDR_INIT); - write_reg(regs->dr, AMD_INIT_PMS_ACTIVE); -} - -/* - * Chip shutdown - */ -private void -isdn_close( - isdn_softc_t *sc) -{ - register amd79c30_padded_regs_t *regs; - - regs = sc->regs; - write_reg(regs->cr, AMDR_INIT); - write_reg(regs->dr, AMD_INIT_PMS_ACTIVE | AMD_INIT_INT_DISABLE); -} - -/* - * Audio port selection - */ -private void -isdn_setport( - isdn_softc_t *sc, - int port) -{ - if (port == AUDIO_SPEAKER) { - sc->sc_map.mr_mmr2 |= AMD_MMR2_LS; - isdn_set_mmr2(sc->regs, sc->sc_map.mr_mmr2); - } else if (port == AUDIO_HEADPHONE) { - sc->sc_map.mr_mmr2 &=~ AMD_MMR2_LS; - isdn_set_mmr2(sc->regs, sc->sc_map.mr_mmr2); - } -} - -private int -isdn_getport( - isdn_softc_t *sc) -{ - return (sc->sc_map.mr_mmr2 & AMD_MMR2_LS) ? - AUDIO_SPEAKER : AUDIO_HEADPHONE; -} - -/* - * Volume control - */ -private void -isdn_setgains( - isdn_softc_t *sc, - int pgain, - int rgain, - int mgain) -{ - private void isdn_set_pgain(), isdn_set_rgain(), isdn_set_mgain(); - - if (pgain != ~0) - isdn_set_pgain(sc, pgain); - if (rgain != ~0) - isdn_set_rgain(sc, rgain); - if (mgain != ~0) - isdn_set_mgain(sc, mgain); - -} - -private void -isdn_getgains( - isdn_softc_t *sc, - int *pgain, - int *rgain, - int *mgain) -{ - *mgain = sc->sc_mlevel; - *rgain = sc->sc_rlevel; - *pgain = sc->sc_plevel; -} - - -/* - * User control over MAP processor - */ -private io_return_t -isdn_setstate( - isdn_softc_t *sc, - dev_flavor_t flavor, - register struct mapreg *map, - natural_t n_ints) -{ - register amd79c30_padded_regs_t *regs = sc->regs; - register int i, v; - spl_t s; - - /* Sun compat */ - if (flavor == AUDIOSETREG) { - register struct audio_ioctl *a = (struct audio_ioctl *)map; - s = splaudio(); - write_reg(regs->cr, (a->control >> 8) & 0xff); - for (i = 0; i < (a->control & 0xff); i++) { - write_reg(regs->dr, a->data[i]); - } - splx(s); - return D_SUCCESS; - } - - if (flavor != AUDIO_SETMAP) - return D_INVALID_OPERATION; - - if ((n_ints * sizeof(int)) < sizeof(*map)) - return D_INVALID_SIZE; - - bcopy(map, &sc->sc_map, sizeof(sc->sc_map)); - sc->sc_map.mr_mmr2 &= 0x7f; - - s = splaudio(); - write_reg(regs->cr, AMDR_MAP_1_10); - for (i = 0; i < 8; i++) { - v = map->mr_x[i]; - WAMD16(regs, v); - } - for (i = 0; i < 8; ++i) { - v = map->mr_r[i]; - WAMD16(regs, v); - } - v = map->mr_gx; WAMD16(regs, v); - v = map->mr_gr; WAMD16(regs, v); - v = map->mr_ger; WAMD16(regs, v); - v = map->mr_stgr; WAMD16(regs, v); - v = map->mr_ftgr; WAMD16(regs, v); - v = map->mr_atgr; WAMD16(regs, v); - write_reg(regs->dr, map->mr_mmr1); - write_reg(regs->dr, map->mr_mmr2); - splx(s); - return D_SUCCESS; -} - -private io_return_t -isdn_getstate( - isdn_softc_t *sc, - dev_flavor_t flavor, - register struct mapreg *map, - natural_t *count) -{ - register amd79c30_padded_regs_t *regs = sc->regs; - spl_t s; - int i; - - /* Sun compat */ - if (flavor == AUDIOGETREG) { - register struct audio_ioctl *a = (struct audio_ioctl *)map; - s = splaudio(); - write_reg(regs->cr, (a->control >> 8) & 0xff); - for (i = 0; i < (a->control & 0xff); i++) { - read_reg(regs->dr,a->data[i]); - } - splx(s); - *count = sizeof(*a) / sizeof(int); - return D_SUCCESS; - } - - if ( (*count * sizeof(int)) < sizeof(*map)) - return D_INVALID_SIZE; - bcopy(&sc->sc_map, map, sizeof(sc->sc_map)); - *count = sizeof(*map) / sizeof(int); - return D_SUCCESS; -} - - - -/* - * Set the mmr1 register and one other 16 bit register in the audio chip. - * The other register is indicated by op and val. - */ -private void -isdn_set_mmr1( - register amd79c30_padded_regs_t *regs, - register int mmr1, - register int op, - register int val) -{ - register int s = splaudio(); - - write_reg(regs->cr, AMDR_MAP_MMR1); - write_reg(regs->dr, mmr1); - write_reg(regs->cr, op); - WAMD16(regs, val); - splx(s); -} - -/* - * Set the mmr2 register. - */ -private void -isdn_set_mmr2( - register amd79c30_padded_regs_t *regs, - register int mmr2) -{ - register int s = splaudio(); - - write_reg(regs->cr, AMDR_MAP_MMR2); - write_reg(regs->dr, mmr2); - splx(s); -} - -/* - * gx, gr & stg gains. this table must contain 256 elements with - * the 0th being "infinity" (the magic value 9008). The remaining - * elements match sun's gain curve (but with higher resolution): - * -18 to 0dB in .16dB steps then 0 to 12dB in .08dB steps. - */ -private const unsigned short gx_coeff[256] = { - 0x9008, 0x8b7c, 0x8b51, 0x8b45, 0x8b42, 0x8b3b, 0x8b36, 0x8b33, - 0x8b32, 0x8b2a, 0x8b2b, 0x8b2c, 0x8b25, 0x8b23, 0x8b22, 0x8b22, - 0x9122, 0x8b1a, 0x8aa3, 0x8aa3, 0x8b1c, 0x8aa6, 0x912d, 0x912b, - 0x8aab, 0x8b12, 0x8aaa, 0x8ab2, 0x9132, 0x8ab4, 0x913c, 0x8abb, - 0x9142, 0x9144, 0x9151, 0x8ad5, 0x8aeb, 0x8a79, 0x8a5a, 0x8a4a, - 0x8b03, 0x91c2, 0x91bb, 0x8a3f, 0x8a33, 0x91b2, 0x9212, 0x9213, - 0x8a2c, 0x921d, 0x8a23, 0x921a, 0x9222, 0x9223, 0x922d, 0x9231, - 0x9234, 0x9242, 0x925b, 0x92dd, 0x92c1, 0x92b3, 0x92ab, 0x92a4, - 0x92a2, 0x932b, 0x9341, 0x93d3, 0x93b2, 0x93a2, 0x943c, 0x94b2, - 0x953a, 0x9653, 0x9782, 0x9e21, 0x9d23, 0x9cd2, 0x9c23, 0x9baa, - 0x9bde, 0x9b33, 0x9b22, 0x9b1d, 0x9ab2, 0xa142, 0xa1e5, 0x9a3b, - 0xa213, 0xa1a2, 0xa231, 0xa2eb, 0xa313, 0xa334, 0xa421, 0xa54b, - 0xada4, 0xac23, 0xab3b, 0xaaab, 0xaa5c, 0xb1a3, 0xb2ca, 0xb3bd, - 0xbe24, 0xbb2b, 0xba33, 0xc32b, 0xcb5a, 0xd2a2, 0xe31d, 0x0808, - 0x72ba, 0x62c2, 0x5c32, 0x52db, 0x513e, 0x4cce, 0x43b2, 0x4243, - 0x41b4, 0x3b12, 0x3bc3, 0x3df2, 0x34bd, 0x3334, 0x32c2, 0x3224, - 0x31aa, 0x2a7b, 0x2aaa, 0x2b23, 0x2bba, 0x2c42, 0x2e23, 0x25bb, - 0x242b, 0x240f, 0x231a, 0x22bb, 0x2241, 0x2223, 0x221f, 0x1a33, - 0x1a4a, 0x1acd, 0x2132, 0x1b1b, 0x1b2c, 0x1b62, 0x1c12, 0x1c32, - 0x1d1b, 0x1e71, 0x16b1, 0x1522, 0x1434, 0x1412, 0x1352, 0x1323, - 0x1315, 0x12bc, 0x127a, 0x1235, 0x1226, 0x11a2, 0x1216, 0x0a2a, - 0x11bc, 0x11d1, 0x1163, 0x0ac2, 0x0ab2, 0x0aab, 0x0b1b, 0x0b23, - 0x0b33, 0x0c0f, 0x0bb3, 0x0c1b, 0x0c3e, 0x0cb1, 0x0d4c, 0x0ec1, - 0x079a, 0x0614, 0x0521, 0x047c, 0x0422, 0x03b1, 0x03e3, 0x0333, - 0x0322, 0x031c, 0x02aa, 0x02ba, 0x02f2, 0x0242, 0x0232, 0x0227, - 0x0222, 0x021b, 0x01ad, 0x0212, 0x01b2, 0x01bb, 0x01cb, 0x01f6, - 0x0152, 0x013a, 0x0133, 0x0131, 0x012c, 0x0123, 0x0122, 0x00a2, - 0x011b, 0x011e, 0x0114, 0x00b1, 0x00aa, 0x00b3, 0x00bd, 0x00ba, - 0x00c5, 0x00d3, 0x00f3, 0x0062, 0x0051, 0x0042, 0x003b, 0x0033, - 0x0032, 0x002a, 0x002c, 0x0025, 0x0023, 0x0022, 0x001a, 0x0021, - 0x001b, 0x001b, 0x001d, 0x0015, 0x0013, 0x0013, 0x0012, 0x0012, - 0x000a, 0x000a, 0x0011, 0x0011, 0x000b, 0x000b, 0x000c, 0x000e, -}; - -/* - * second stage play gain. - */ -private const unsigned short ger_coeff[] = { - 0x431f, /* 5. dB */ - 0x331f, /* 5.5 dB */ - 0x40dd, /* 6. dB */ - 0x11dd, /* 6.5 dB */ - 0x440f, /* 7. dB */ - 0x411f, /* 7.5 dB */ - 0x311f, /* 8. dB */ - 0x5520, /* 8.5 dB */ - 0x10dd, /* 9. dB */ - 0x4211, /* 9.5 dB */ - 0x410f, /* 10. dB */ - 0x111f, /* 10.5 dB */ - 0x600b, /* 11. dB */ - 0x00dd, /* 11.5 dB */ - 0x4210, /* 12. dB */ - 0x110f, /* 13. dB */ - 0x7200, /* 14. dB */ - 0x2110, /* 15. dB */ - 0x2200, /* 15.9 dB */ - 0x000b, /* 16.9 dB */ - 0x000f /* 18. dB */ -#define NGER (sizeof(ger_coeff) / sizeof(ger_coeff[0])) -}; - -private void -isdn_set_rgain( - register isdn_softc_t *sc, - register int level) -{ - level &= 0xff; - sc->sc_rlevel = level; - sc->sc_map.mr_mmr1 |= AMD_MMR1_GX; - sc->sc_map.mr_gx = gx_coeff[level]; - isdn_set_mmr1(sc->regs, sc->sc_map.mr_mmr1, - AMDR_MAP_GX, sc->sc_map.mr_gx); -} - -private void -isdn_set_pgain( - register isdn_softc_t *sc, - register int level) -{ - register int gi, s; - register amd79c30_padded_regs_t *regs; - - level &= 0xff; - sc->sc_plevel = level; - sc->sc_map.mr_mmr1 |= AMD_MMR1_GER|AMD_MMR1_GR; - level *= 256 + NGER; - level >>= 8; - if (level >= 256) { - gi = level - 256; - level = 255; - } else - gi = 0; - sc->sc_map.mr_ger = ger_coeff[gi]; - sc->sc_map.mr_gr = gx_coeff[level]; - - regs = sc->regs; - s = splaudio(); - write_reg(regs->cr, AMDR_MAP_MMR1); - write_reg(regs->dr, sc->sc_map.mr_mmr1); - write_reg(regs->cr, AMDR_MAP_GR); - gi = sc->sc_map.mr_gr; - WAMD16(regs, gi); - write_reg(regs->cr, AMDR_MAP_GER); - gi = sc->sc_map.mr_ger; - WAMD16(regs, gi); - splx(s); -} - -private void -isdn_set_mgain( - register isdn_softc_t *sc, - register int level) -{ - level &= 0xff; - sc->sc_mlevel = level; - sc->sc_map.mr_mmr1 |= AMD_MMR1_STG; - sc->sc_map.mr_stgr = gx_coeff[level]; - isdn_set_mmr1(sc->regs, sc->sc_map.mr_mmr1, - AMDR_MAP_STG, sc->sc_map.mr_stgr); -} - -/* - * Interrupt routine - */ -#if old -isdn_intr (unit, spllevel) - spl_t spllevel; -{ -#ifdef MAXINE - xine_enable_interrupt(7, 0, 0); -#endif -#ifdef FLAMINGO - kn15aa_enable_interrupt(12, 0, 0); -#endif - printf("ISDN interrupt"); -} -#else -isdn_intr (unit, spllevel) - spl_t spllevel; -{ - isdn_softc_t *sc = isdn_softc[unit]; - amd79c30_padded_regs_t *regs = sc->regs; - register int i; - unsigned int c; - - read_reg(regs->ir, i); mb(); /* clear interrupt, now */ -#if mips - splx(spllevel); /* drop priority */ -#endif - -#if 0 - if (..this is an audio interrupt..) -#endif - { - read_reg(regs->bbrb, c); - if (audio_hwintr(sc->audio_status, c, &c)) - write_reg(regs->bbtb, c); - } -} -#endif - - - -/* - * Standard operations vector - */ -audio_switch_t isdn_ops = { - isdn_init, - isdn_close, - isdn_setport, - isdn_getport, - isdn_setgains, - isdn_getgains, - isdn_setstate, - isdn_getstate -}; - -#if 1 -write_an_int(int *where, int what) { *where = what;} -read_an_int(int *where) { return *where;} -#endif - -#endif |