diff options
Diffstat (limited to 'sys/i386/isa/sound/cs4232.c')
-rw-r--r-- | sys/i386/isa/sound/cs4232.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/sys/i386/isa/sound/cs4232.c b/sys/i386/isa/sound/cs4232.c deleted file mode 100644 index c95842a..0000000 --- a/sys/i386/isa/sound/cs4232.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * sound/cs4232.c - * - * The low level driver for Crystal CS4232 based cards. The CS4232 is a PnP - * compatible chip which contains a CS4231A codec, SB emulation, a MPU401 - * compatible MIDI port, joystick and synthesizer and IDE CD-ROM interfaces. - * This is just a temporary driver until full PnP support gets inplemented. - * Just the WSS codec, FM synth and the MIDI ports are supported. Other - * interfaces are left uninitialized. - * - * Copyright by Hannu Savolainen 1995 - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <i386/isa/sound/sound_config.h> - -#if defined(CONFIG_CS4232) - -#define KEY_PORT 0x279 /* Same as LPT1 status port */ -#define CSN_NUM 0x99 /* Just a random number */ - -#define CS_OUT(a) outb( KEY_PORT, a) -#define CS_OUT2(a, b) {CS_OUT(a);CS_OUT(b);} -#define CS_OUT3(a, b, c) {CS_OUT(a);CS_OUT(b);CS_OUT(c);} - -static int mpu_base = 0, mpu_irq = 0; -static int mpu_detected = 0; - -int -probe_cs4232_mpu(struct address_info * hw_config) -{ - /* - * Just write down the config values. - */ - - mpu_base = hw_config->io_base; - mpu_irq = hw_config->irq; - return 0; -} - -void -attach_cs4232_mpu(struct address_info * hw_config) -{ -} - -static unsigned char crystal_key[] = /* A 32 byte magic key sequence */ -{ - 0x96, 0x35, 0x9a, 0xcd, 0xe6, 0xf3, 0x79, 0xbc, - 0x5e, 0xaf, 0x57, 0x2b, 0x15, 0x8a, 0xc5, 0xe2, - 0xf1, 0xf8, 0x7c, 0x3e, 0x9f, 0x4f, 0x27, 0x13, - 0x09, 0x84, 0x42, 0xa1, 0xd0, 0x68, 0x34, 0x1a -}; - -int -probe_cs4232(struct address_info * hw_config) -{ - int i; - int base = hw_config->io_base, irq = hw_config->irq; - int dma1 = hw_config->dma, dma2 = hw_config->dma2; - - /* - * Verify that the I/O port range is free. - */ - - if (0) { - printf("cs4232.c: I/O port 0x%03x not free\n", base); - return 0; - } - /* - * This version of the driver doesn't use the PnP method when - * configuring the card but a simplified method defined by Crystal. - * This means that just one CS4232 compatible device can exist on the - * system. Also this method conflicts with possible PnP support in - * the OS. For this reason driver is just a temporary kludge. - */ - - /* - * Wake up the card by sending a 32 byte Crystal key to the key port. - */ - for (i = 0; i < 32; i++) - CS_OUT(crystal_key[i]); - - /* - * Now set the CSN (Card Select Number). - */ - - CS_OUT2(0x06, CSN_NUM); - - /* - * Ensure that there is no other codec using the same address. - */ - - CS_OUT2(0x15, 0x00); /* Select logical device 0 (WSS/SB/FM) */ - CS_OUT2(0x33, 0x00); /* Inactivate logical dev 0 */ - - /* - * Then set some config bytes. First logical device 0 - */ - - CS_OUT2(0x15, 0x00); /* Select logical device 0 (WSS/SB/FM) */ - CS_OUT3(0x47, (base >> 8) & 0xff, base & 0xff); /* WSSbase */ - - if (0) /* Not free */ - CS_OUT3(0x48, 0x00, 0x00) /* FMbase off */ - else - CS_OUT3(0x48, 0x03, 0x88); /* FMbase 0x388 */ - - CS_OUT3(0x42, 0x00, 0x00); /* SBbase off */ - CS_OUT2(0x22, irq); /* SB+WSS IRQ */ - CS_OUT2(0x2a, dma1); /* SB+WSS DMA */ - - if (dma2 != -1) - CS_OUT2(0x25, dma2) /* WSS DMA2 */ - else - CS_OUT2(0x25, 4); /* No WSS DMA2 */ - - CS_OUT2(0x33, 0x01); /* Activate logical dev 0 */ - - /* - * Initialize logical device 3 (MPU) - */ - -#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI) - if (mpu_base != 0 && mpu_irq != 0) { - CS_OUT2(0x15, 0x03); /* Select logical device 3 (MPU) */ - CS_OUT3(0x47, (mpu_base >> 8) & 0xff, mpu_base & 0xff); /* MPUbase */ - CS_OUT2(0x22, mpu_irq); /* MPU IRQ */ - CS_OUT2(0x33, 0x01); /* Activate logical dev 3 */ - } -#endif - - /* - * Finally activate the chip - */ - CS_OUT(0x79); - - /* - * Then try to detect the codec part of the chip - */ - - return ad1848_detect(hw_config->io_base, NULL, hw_config->osp); -} - -void -attach_cs4232(struct address_info * hw_config) -{ - int base = hw_config->io_base, irq = hw_config->irq; - int dma1 = hw_config->dma, dma2 = hw_config->dma2; - - if (dma2 == -1) - dma2 = dma1; - - ad1848_init("CS4232", base, - irq, - dma1, /* Playback DMA */ - dma2, /* Capture DMA */ - 0, - hw_config->osp); - -#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI) - if (mpu_base != 0 && mpu_irq != 0) { - static struct address_info hw_config2 = - {0}; /* Ensure it's initialized */ - - hw_config2.io_base = mpu_base; - hw_config2.irq = mpu_irq; - hw_config2.dma = -1; - hw_config2.dma2 = -1; - hw_config2.always_detect = 0; - hw_config2.name = NULL; - hw_config2.card_subtype = 0; - hw_config2.osp = hw_config->osp; - - if (probe_mpu401(&hw_config2)) { - mpu_detected = 1; - attach_mpu401(&hw_config2); - } else { - mpu_base = mpu_irq = 0; - } - } -#endif -} - -#endif |