1fa24a09c7
This is based on Voxware 3.5, and corresponds to Amancio's `guspnp21'. Bug reports to Amancio, please!
525 lines
13 KiB
C
525 lines
13 KiB
C
/*
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* sound/mad16.c
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*
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* Initialization code for OPTi MAD16 compatible audio chips. Including
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*
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* OPTi 82C928 MAD16 (replaced by C929) OAK OTI-601D Mozart
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* OPTi 82C929 MAD16 Pro
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*
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* These audio interface chips don't prduce sound themselves. They just connect
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* some other components (OPL-[234] and a WSS compatible codec) to the PC bus
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* and perform I/O, DMA and IRQ address decoding. There is also a UART for
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* the MPU-401 mode (not 82C928/Mozart). The Mozart chip appears to be
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* compatible with the 82C928 (can anybody confirm this?).
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*
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* NOTE! If you want to set CD-ROM address and/or joystick enable, define
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* MAD16_CONF in local.h as combination of the following bits:
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*
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* 0x01 - joystick disabled
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*
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* CD-ROM type selection (select just one): 0x00 - none 0x02 - Sony 31A
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* 0x04 - Mitsumi 0x06 - Panasonic (type "LaserMate", not
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* "SoundBlaster") 0x08 - Secondary IDE (address 0x170) 0x0a - Primary
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* IDE (address 0x1F0)
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*
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* For example Mitsumi with joystick disabled = 0x04|0x01 = 0x05 For example
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* LaserMate (for use with sbpcd) plus joystick = 0x06
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*
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* MAD16_CDSEL: This defaults to CD I/O 0x340, no IRQ and DMA3 (DMA5 with
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* Mitsumi or IDE). If you like to change these, define MAD16_CDSEL with the
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* following bits:
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*
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* CD-ROM port: 0x00=340, 0x40=330, 0x80=360 or 0xc0=320 OPL4 select: 0x20=OPL4,
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* 0x00=OPL3 CD-ROM irq: 0x00=disabled, 0x04=IRQ5, 0x08=IRQ7, 0x0a=IRQ3,
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* 0x10=IRQ9, 0x14=IRQ10 and 0x18=IRQ11.
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*
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* CD-ROM DMA (Sony or Panasonic): 0x00=DMA3, 0x01=DMA2, 0x02=DMA1 or
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* 0x03=disabled or CD-ROM DMA (Mitsumi or IDE): 0x00=DMA5, 0x01=DMA6,
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* 0x02=DMA7 or 0x03=disabled
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*
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* For use with sbpcd, address 0x340, set MAD16_CDSEL to 0x03 or 0x23.
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*
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* Copyright by Hannu Savolainen 1995
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <i386/isa/sound/sound_config.h>
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#if defined(CONFIG_MAD16)
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static int already_initialized = 0;
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#define C928 1
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#define MOZART 2
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#define C929 3
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/*
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* Registers
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*
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* The MAD16 occupies I/O ports 0xf8d to 0xf93 (fixed locations). All ports are
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* inactive by default. They can be activated by writing 0xE2 or 0xE3 to the
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* password register. The password is valid only until the next I/O read or
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* write.
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*/
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#define MC1_PORT 0xf8d /* SB address, CDROM interface type, joystick */
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#define MC2_PORT 0xf8e /* CDROM address, IRQ, DMA, plus OPL4 bit */
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#define MC3_PORT 0xf8f
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#define PASSWD_REG 0xf8f
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#define MC4_PORT 0xf90
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#define MC5_PORT 0xf91
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#define MC6_PORT 0xf92
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#define MC7_PORT 0xf93
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static int board_type = C928;
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static sound_os_info *mad16_osp;
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#ifndef DDB
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#define DDB(x)
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#endif
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static unsigned char
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mad_read(int port)
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{
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unsigned long flags;
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unsigned char tmp;
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flags = splhigh();
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switch (board_type) { /* Output password */
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case C928:
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case MOZART:
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outb(PASSWD_REG, 0xE2);
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break;
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case C929:
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outb(PASSWD_REG, 0xE3);
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break;
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}
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tmp = inb(port);
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splx(flags);
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return tmp;
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}
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static void
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mad_write(int port, int value)
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{
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unsigned long flags;
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flags = splhigh();
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switch (board_type) { /* Output password */
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case C928:
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case MOZART:
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outb(PASSWD_REG, 0xE2);
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break;
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case C929:
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outb(PASSWD_REG, 0xE3);
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break;
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}
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outb(port, (unsigned char) (value & 0xff));
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splx(flags);
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}
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static int
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detect_mad16(void)
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{
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unsigned char tmp, tmp2;
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/*
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* Check that reading a register doesn't return bus float (0xff) when
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* the card is accessed using password. This may fail in case the
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* card is in low power mode. Normally at least the power saving mode
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* bit should be 0.
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*/
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if ((tmp = mad_read(MC1_PORT)) == 0xff) {
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DDB(printf("MC1_PORT returned 0xff\n"));
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return 0;
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}
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/*
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* Now check that the gate is closed on first I/O after writing the
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* password. (This is how a MAD16 compatible card works).
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*/
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if ((tmp2 = inb(MC1_PORT)) == tmp) { /* It didn't close */
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DDB(printf("MC1_PORT didn't close after read (0x%02x)\n", tmp2));
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return 0;
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}
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mad_write(MC1_PORT, tmp ^ 0x80); /* Togge a bit */
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if ((tmp2 = mad_read(MC1_PORT)) != (tmp ^ 0x80)) { /* Compare the bit */
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mad_write(MC1_PORT, tmp); /* Restore */
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DDB(printf("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2));
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return 0;
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}
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mad_write(MC1_PORT, tmp); /* Restore */
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return 1; /* Bingo */
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}
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int
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probe_mad16(struct address_info * hw_config)
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{
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int i;
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static int valid_ports[] =
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{0x530, 0xe80, 0xf40, 0x604};
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unsigned char tmp;
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unsigned char cs4231_mode = 0;
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int ad_flags = 0;
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if (already_initialized)
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return 0;
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mad16_osp = hw_config->osp;
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/*
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* Check that all ports return 0xff (bus float) when no password is
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* written to the password register.
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*/
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DDB(printf("--- Detecting MAD16 / Mozart ---\n"));
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/*
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* Then try to detect with the old password
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*/
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board_type = C928;
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DDB(printf("Detect using password = 0xE2\n"));
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if (!detect_mad16()) { /* No luck. Try different model */
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board_type = C929;
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DDB(printf("Detect using password = 0xE3\n"));
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if (!detect_mad16())
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return 0;
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DDB(printf("mad16.c: 82C929 detected\n"));
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} else {
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unsigned char model;
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if (((model = mad_read(MC3_PORT)) & 0x03) == 0x03) {
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DDB(printf("mad16.c: Mozart detected\n"));
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board_type = MOZART;
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} else {
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DDB(printf("mad16.c: 82C928 detected???\n"));
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board_type = C928;
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}
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}
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for (i = 0xf8d; i <= 0xf93; i++)
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DDB(printf("port %03x = %03x\n", i, mad_read(i)));
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/*
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* Set the WSS address
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*/
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tmp = 0x80; /* Enable WSS, Disable SB */
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for (i = 0; i < 5; i++) {
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if (i > 3) { /* Not a valid port */
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printf("MAD16/Mozart: Bad WSS base address 0x%x\n", hw_config->io_base);
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return 0;
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}
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if (valid_ports[i] == hw_config->io_base) {
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tmp |= i << 4; /* WSS port select bits */
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break;
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}
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}
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/*
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* Set optional CD-ROM and joystick settings.
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*/
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#ifdef MAD16_CONF
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tmp |= ((MAD16_CONF) & 0x0f); /* CD-ROM and joystick bits */
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#endif
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mad_write(MC1_PORT, tmp);
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#if defined(MAD16_CONF) && defined(MAD16_CDSEL)
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tmp = MAD16_CDSEL;
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#else
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tmp = 0x03;
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#endif
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#ifdef MAD16_OPL4
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tmp |= 0x20; /* Enable OPL4 access */
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#endif
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mad_write(MC2_PORT, tmp);
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mad_write(MC3_PORT, 0xf0); /* Disable SB */
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if (!ad1848_detect(hw_config->io_base + 4, &ad_flags, mad16_osp))
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return 0;
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if (ad_flags & (AD_F_CS4231 | AD_F_CS4248))
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cs4231_mode = 0x02; /* CS4248/CS4231 sync delay switch */
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if (board_type == C929) {
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mad_write(MC4_PORT, 0xa2);
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mad_write(MC5_PORT, 0xA5 | cs4231_mode);
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mad_write(MC6_PORT, 0x03); /* Disable MPU401 */
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} else {
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mad_write(MC4_PORT, 0x02);
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mad_write(MC5_PORT, 0x30 | cs4231_mode);
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}
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for (i = 0xf8d; i <= 0xf93; i++)
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DDB(printf("port %03x after init = %03x\n", i, mad_read(i)));
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/*
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* Verify the WSS parameters
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*/
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if (0) {
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printf("MSS: I/O port conflict\n");
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return 0;
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}
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/*
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* Check if the IO port returns valid signature. The original MS
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* Sound system returns 0x04 while some cards (AudioTriX Pro for
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* example) return 0x00.
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*/
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if ((inb(hw_config->io_base + 3) & 0x3f) != 0x04 &&
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(inb(hw_config->io_base + 3) & 0x3f) != 0x00) {
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DDB(printf("No MSS signature detected on port 0x%x (0x%x)\n",
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hw_config->io_base, inb(hw_config->io_base + 3)));
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return 0;
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}
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if (hw_config->irq > 11) {
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printf("MSS: Bad IRQ %d\n", hw_config->irq);
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return 0;
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}
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if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3) {
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printf("MSS: Bad DMA %d\n", hw_config->dma);
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return 0;
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}
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/*
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* Check that DMA0 is not in use with a 8 bit board.
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*/
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if (hw_config->dma == 0 && inb(hw_config->io_base + 3) & 0x80) {
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printf("MSS: Can't use DMA0 with a 8 bit card/slot\n");
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return 0;
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}
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if (hw_config->irq > 7 && hw_config->irq != 9 && inb(hw_config->io_base + 3) & 0x80) {
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printf("MSS: Can't use IRQ%d with a 8 bit card/slot\n", hw_config->irq);
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return 0;
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}
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return 1;
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}
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void
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attach_mad16(struct address_info * hw_config)
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{
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static char interrupt_bits[12] =
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{
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-1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20
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};
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char bits;
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static char dma_bits[4] =
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{
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1, 2, 0, 3
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};
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int config_port = hw_config->io_base + 0, version_port = hw_config->io_base + 3;
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int ad_flags = 0, dma = hw_config->dma, dma2 = hw_config->dma2;
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unsigned char dma2_bit = 0;
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already_initialized = 1;
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if (!ad1848_detect(hw_config->io_base + 4, &ad_flags, mad16_osp))
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return;
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/*
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* Set the IRQ and DMA addresses.
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*/
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bits = interrupt_bits[hw_config->irq];
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if (bits == -1)
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return;
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outb(config_port, bits | 0x40);
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if ((inb(version_port) & 0x40) == 0)
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printf("[IRQ Conflict?]");
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/*
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* Handle the capture DMA channel
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*/
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if (ad_flags & AD_F_CS4231 && dma2 != -1 && dma2 != dma) {
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if ((dma == 0 && dma2 == 1) ||
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(dma == 1 && dma2 == 0) ||
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(dma == 3 && dma2 == 0)) {
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dma2_bit = 0x04; /* Enable capture DMA */
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} else {
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printf("MAD16: Invalid capture DMA\n");
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dma2 = dma;
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}
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} else
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dma2 = dma;
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outb(config_port, bits | dma_bits[dma] | dma2_bit); /* Write IRQ+DMA setup */
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ad1848_init("MAD16 WSS", hw_config->io_base + 4,
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hw_config->irq,
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dma,
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dma2, 0,
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hw_config->osp);
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}
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void
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attach_mad16_mpu(struct address_info * hw_config)
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{
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if (board_type < C929) {/* Early chip. No MPU support. Just SB MIDI */
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#ifdef CONFIG_MIDI
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if (mad_read(MC1_PORT) & 0x20)
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hw_config->io_base = 0x240;
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else
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hw_config->io_base = 0x220;
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return mad16_sb_dsp_init(hw_config);
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#else
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return 0;
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#endif
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}
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#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI)
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if (!already_initialized)
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return;
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attach_mpu401(hw_config);
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#endif
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}
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int
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probe_mad16_mpu(struct address_info * hw_config)
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{
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#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI)
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static int mpu_attached = 0;
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static int valid_ports[] =
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{0x330, 0x320, 0x310, 0x300};
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static short valid_irqs[] =
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{9, 10, 5, 7};
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unsigned char tmp;
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int i; /* A variable with secret power */
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if (!already_initialized) /* The MSS port must be initialized
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* first */
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return 0;
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if (mpu_attached) /* Don't let them call this twice */
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return 0;
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mpu_attached = 1;
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if (board_type < C929) {/* Early chip. No MPU support. Just SB MIDI */
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#ifdef CONFIG_MIDI
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unsigned char tmp;
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tmp = mad_read(MC3_PORT);
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/*
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* MAD16 SB base is defined by the WSS base. It cannot be
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* changed alone. Ignore configured I/O base. Use the active
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* setting.
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*/
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if (mad_read(MC1_PORT) & 0x20)
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hw_config->io_base = 0x240;
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else
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hw_config->io_base = 0x220;
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switch (hw_config->irq) {
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case 5:
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tmp = (tmp & 0x3f) | 0x80;
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break;
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case 7:
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tmp = (tmp & 0x3f);
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break;
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case 11:
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tmp = (tmp & 0x3f) | 0x40;
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break;
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default:
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printf("mad16/Mozart: Invalid MIDI IRQ\n");
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return 0;
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}
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mad_write(MC3_PORT, tmp | 0x04);
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return mad16_sb_dsp_detect(hw_config);
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#else
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return 0;
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#endif
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}
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tmp = 0x83; /* MPU-401 enable */
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/*
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* Set the MPU base bits
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*/
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for (i = 0; i < 5; i++) {
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if (i > 3) { /* Out of array bounds */
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printf("MAD16 / Mozart: Invalid MIDI port 0x%x\n", hw_config->io_base);
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return 0;
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}
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if (valid_ports[i] == hw_config->io_base) {
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tmp |= i << 5;
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break;
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}
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}
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/*
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* Set the MPU IRQ bits
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*/
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for (i = 0; i < 5; i++) {
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if (i > 3) { /* Out of array bounds */
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printf("MAD16 / Mozart: Invalid MIDI IRQ %d\n", hw_config->irq);
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return 0;
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}
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if (valid_irqs[i] == hw_config->irq) {
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tmp |= i << 3;
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break;
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}
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}
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mad_write(MC6_PORT, tmp); /* Write MPU401 config */
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return probe_mpu401(hw_config);
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#else
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return 0;
|
|
#endif
|
|
}
|
|
|
|
/* That's all folks */
|
|
#endif
|