diff options
Diffstat (limited to 'sound/isa/sb/emu8000.c')
| -rw-r--r-- | sound/isa/sb/emu8000.c | 1160 |
1 files changed, 1160 insertions, 0 deletions
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c new file mode 100644 index 000000000..1c90421a8 --- /dev/null +++ b/sound/isa/sb/emu8000.c @@ -0,0 +1,1160 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) by Jaroslav Kysela <perex@perex.cz> + * and (c) 1999 Steve Ratcliffe <steve@parabola.demon.co.uk> + * Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de> + * + * Routines for control of EMU8000 chip + */ + +#include <linux/wait.h> +#include <linux/sched/signal.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/export.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <sound/core.h> +#include <sound/emu8000.h> +#include <sound/emu8000_reg.h> +#include <linux/uaccess.h> +#include <linux/init.h> +#include <sound/control.h> +#include <sound/initval.h> + +/* + * emu8000 register controls + */ + +/* + * The following routines read and write registers on the emu8000. They + * should always be called via the EMU8000*READ/WRITE macros and never + * directly. The macros handle the port number and command word. + */ +/* Write a word */ +void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val) +{ + unsigned long flags; + spin_lock_irqsave(&emu->reg_lock, flags); + if (reg != emu->last_reg) { + outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */ + emu->last_reg = reg; + } + outw((unsigned short)val, port); /* Send data */ + spin_unlock_irqrestore(&emu->reg_lock, flags); +} + +/* Read a word */ +unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port, unsigned int reg) +{ + unsigned short res; + unsigned long flags; + spin_lock_irqsave(&emu->reg_lock, flags); + if (reg != emu->last_reg) { + outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */ + emu->last_reg = reg; + } + res = inw(port); /* Read data */ + spin_unlock_irqrestore(&emu->reg_lock, flags); + return res; +} + +/* Write a double word */ +void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val) +{ + unsigned long flags; + spin_lock_irqsave(&emu->reg_lock, flags); + if (reg != emu->last_reg) { + outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */ + emu->last_reg = reg; + } + outw((unsigned short)val, port); /* Send low word of data */ + outw((unsigned short)(val>>16), port+2); /* Send high word of data */ + spin_unlock_irqrestore(&emu->reg_lock, flags); +} + +/* Read a double word */ +unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg) +{ + unsigned short low; + unsigned int res; + unsigned long flags; + spin_lock_irqsave(&emu->reg_lock, flags); + if (reg != emu->last_reg) { + outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */ + emu->last_reg = reg; + } + low = inw(port); /* Read low word of data */ + res = low + (inw(port+2) << 16); + spin_unlock_irqrestore(&emu->reg_lock, flags); + return res; +} + +/* + * Set up / close a channel to be used for DMA. + */ +/*exported*/ void +snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode) +{ + unsigned right_bit = (mode & EMU8000_RAM_RIGHT) ? 0x01000000 : 0; + mode &= EMU8000_RAM_MODE_MASK; + if (mode == EMU8000_RAM_CLOSE) { + EMU8000_CCCA_WRITE(emu, ch, 0); + EMU8000_DCYSUSV_WRITE(emu, ch, 0x807F); + return; + } + EMU8000_DCYSUSV_WRITE(emu, ch, 0x80); + EMU8000_VTFT_WRITE(emu, ch, 0); + EMU8000_CVCF_WRITE(emu, ch, 0); + EMU8000_PTRX_WRITE(emu, ch, 0x40000000); + EMU8000_CPF_WRITE(emu, ch, 0x40000000); + EMU8000_PSST_WRITE(emu, ch, 0); + EMU8000_CSL_WRITE(emu, ch, 0); + if (mode == EMU8000_RAM_WRITE) /* DMA write */ + EMU8000_CCCA_WRITE(emu, ch, 0x06000000 | right_bit); + else /* DMA read */ + EMU8000_CCCA_WRITE(emu, ch, 0x04000000 | right_bit); +} + +/* + */ +static void +snd_emu8000_read_wait(struct snd_emu8000 *emu) +{ + while ((EMU8000_SMALR_READ(emu) & 0x80000000) != 0) { + schedule_timeout_interruptible(1); + if (signal_pending(current)) + break; + } +} + +/* + */ +static void +snd_emu8000_write_wait(struct snd_emu8000 *emu) +{ + while ((EMU8000_SMALW_READ(emu) & 0x80000000) != 0) { + schedule_timeout_interruptible(1); + if (signal_pending(current)) + break; + } +} + +/* + * detect a card at the given port + */ +static int +snd_emu8000_detect(struct snd_emu8000 *emu) +{ + /* Initialise */ + EMU8000_HWCF1_WRITE(emu, 0x0059); + EMU8000_HWCF2_WRITE(emu, 0x0020); + EMU8000_HWCF3_WRITE(emu, 0x0000); + /* Check for a recognisable emu8000 */ + /* + if ((EMU8000_U1_READ(emu) & 0x000f) != 0x000c) + return -ENODEV; + */ + if ((EMU8000_HWCF1_READ(emu) & 0x007e) != 0x0058) + return -ENODEV; + if ((EMU8000_HWCF2_READ(emu) & 0x0003) != 0x0003) + return -ENODEV; + + snd_printdd("EMU8000 [0x%lx]: Synth chip found\n", + emu->port1); + return 0; +} + + +/* + * intiailize audio channels + */ +static void +init_audio(struct snd_emu8000 *emu) +{ + int ch; + + /* turn off envelope engines */ + for (ch = 0; ch < EMU8000_CHANNELS; ch++) + EMU8000_DCYSUSV_WRITE(emu, ch, 0x80); + + /* reset all other parameters to zero */ + for (ch = 0; ch < EMU8000_CHANNELS; ch++) { + EMU8000_ENVVOL_WRITE(emu, ch, 0); + EMU8000_ENVVAL_WRITE(emu, ch, 0); + EMU8000_DCYSUS_WRITE(emu, ch, 0); + EMU8000_ATKHLDV_WRITE(emu, ch, 0); + EMU8000_LFO1VAL_WRITE(emu, ch, 0); + EMU8000_ATKHLD_WRITE(emu, ch, 0); + EMU8000_LFO2VAL_WRITE(emu, ch, 0); + EMU8000_IP_WRITE(emu, ch, 0); + EMU8000_IFATN_WRITE(emu, ch, 0); + EMU8000_PEFE_WRITE(emu, ch, 0); + EMU8000_FMMOD_WRITE(emu, ch, 0); + EMU8000_TREMFRQ_WRITE(emu, ch, 0); + EMU8000_FM2FRQ2_WRITE(emu, ch, 0); + EMU8000_PTRX_WRITE(emu, ch, 0); + EMU8000_VTFT_WRITE(emu, ch, 0); + EMU8000_PSST_WRITE(emu, ch, 0); + EMU8000_CSL_WRITE(emu, ch, 0); + EMU8000_CCCA_WRITE(emu, ch, 0); + } + + for (ch = 0; ch < EMU8000_CHANNELS; ch++) { + EMU8000_CPF_WRITE(emu, ch, 0); + EMU8000_CVCF_WRITE(emu, ch, 0); + } +} + + +/* + * initialize DMA address + */ +static void +init_dma(struct snd_emu8000 *emu) +{ + EMU8000_SMALR_WRITE(emu, 0); + EMU8000_SMARR_WRITE(emu, 0); + EMU8000_SMALW_WRITE(emu, 0); + EMU8000_SMARW_WRITE(emu, 0); +} + +/* + * initialization arrays; from ADIP + */ +static const unsigned short init1[128] = { + 0x03ff, 0x0030, 0x07ff, 0x0130, 0x0bff, 0x0230, 0x0fff, 0x0330, + 0x13ff, 0x0430, 0x17ff, 0x0530, 0x1bff, 0x0630, 0x1fff, 0x0730, + 0x23ff, 0x0830, 0x27ff, 0x0930, 0x2bff, 0x0a30, 0x2fff, 0x0b30, + 0x33ff, 0x0c30, 0x37ff, 0x0d30, 0x3bff, 0x0e30, 0x3fff, 0x0f30, + + 0x43ff, 0x0030, 0x47ff, 0x0130, 0x4bff, 0x0230, 0x4fff, 0x0330, + 0x53ff, 0x0430, 0x57ff, 0x0530, 0x5bff, 0x0630, 0x5fff, 0x0730, + 0x63ff, 0x0830, 0x67ff, 0x0930, 0x6bff, 0x0a30, 0x6fff, 0x0b30, + 0x73ff, 0x0c30, 0x77ff, 0x0d30, 0x7bff, 0x0e30, 0x7fff, 0x0f30, + + 0x83ff, 0x0030, 0x87ff, 0x0130, 0x8bff, 0x0230, 0x8fff, 0x0330, + 0x93ff, 0x0430, 0x97ff, 0x0530, 0x9bff, 0x0630, 0x9fff, 0x0730, + 0xa3ff, 0x0830, 0xa7ff, 0x0930, 0xabff, 0x0a30, 0xafff, 0x0b30, + 0xb3ff, 0x0c30, 0xb7ff, 0x0d30, 0xbbff, 0x0e30, 0xbfff, 0x0f30, + + 0xc3ff, 0x0030, 0xc7ff, 0x0130, 0xcbff, 0x0230, 0xcfff, 0x0330, + 0xd3ff, 0x0430, 0xd7ff, 0x0530, 0xdbff, 0x0630, 0xdfff, 0x0730, + 0xe3ff, 0x0830, 0xe7ff, 0x0930, 0xebff, 0x0a30, 0xefff, 0x0b30, + 0xf3ff, 0x0c30, 0xf7ff, 0x0d30, 0xfbff, 0x0e30, 0xffff, 0x0f30, +}; + +static const unsigned short init2[128] = { + 0x03ff, 0x8030, 0x07ff, 0x8130, 0x0bff, 0x8230, 0x0fff, 0x8330, + 0x13ff, 0x8430, 0x17ff, 0x8530, 0x1bff, 0x8630, 0x1fff, 0x8730, + 0x23ff, 0x8830, 0x27ff, 0x8930, 0x2bff, 0x8a30, 0x2fff, 0x8b30, + 0x33ff, 0x8c30, 0x37ff, 0x8d30, 0x3bff, 0x8e30, 0x3fff, 0x8f30, + + 0x43ff, 0x8030, 0x47ff, 0x8130, 0x4bff, 0x8230, 0x4fff, 0x8330, + 0x53ff, 0x8430, 0x57ff, 0x8530, 0x5bff, 0x8630, 0x5fff, 0x8730, + 0x63ff, 0x8830, 0x67ff, 0x8930, 0x6bff, 0x8a30, 0x6fff, 0x8b30, + 0x73ff, 0x8c30, 0x77ff, 0x8d30, 0x7bff, 0x8e30, 0x7fff, 0x8f30, + + 0x83ff, 0x8030, 0x87ff, 0x8130, 0x8bff, 0x8230, 0x8fff, 0x8330, + 0x93ff, 0x8430, 0x97ff, 0x8530, 0x9bff, 0x8630, 0x9fff, 0x8730, + 0xa3ff, 0x8830, 0xa7ff, 0x8930, 0xabff, 0x8a30, 0xafff, 0x8b30, + 0xb3ff, 0x8c30, 0xb7ff, 0x8d30, 0xbbff, 0x8e30, 0xbfff, 0x8f30, + + 0xc3ff, 0x8030, 0xc7ff, 0x8130, 0xcbff, 0x8230, 0xcfff, 0x8330, + 0xd3ff, 0x8430, 0xd7ff, 0x8530, 0xdbff, 0x8630, 0xdfff, 0x8730, + 0xe3ff, 0x8830, 0xe7ff, 0x8930, 0xebff, 0x8a30, 0xefff, 0x8b30, + 0xf3ff, 0x8c30, 0xf7ff, 0x8d30, 0xfbff, 0x8e30, 0xffff, 0x8f30, +}; + +static const unsigned short init3[128] = { + 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5, + 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x8F7C, 0x167E, 0xF254, + 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x8BAA, 0x1B6D, 0xF234, + 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x86E7, 0x229E, 0xF224, + + 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x87F6, 0x2C28, 0xF254, + 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x8F02, 0x1341, 0xF264, + 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x8FA9, 0x3EB5, 0xF294, + 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0xC4C3, 0x3EBB, 0xC5C3, + + 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x8671, 0x14FD, 0x8287, + 0x3EBC, 0xE610, 0x3EC8, 0x8C7B, 0x031A, 0x87E6, 0x3EC8, 0x86F7, + 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x821F, 0x3ECA, 0x8386, + 0x3EC1, 0x8C03, 0x3EC9, 0x831E, 0x3ECA, 0x8C4C, 0x3EBF, 0x8C55, + + 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x8EAD, 0x3EC8, 0xD308, + 0x3EC2, 0x8F7E, 0x3ECB, 0x8219, 0x3ECB, 0xD26E, 0x3EC5, 0x831F, + 0x3EC6, 0xC308, 0x3EC3, 0xB2FF, 0x3EC9, 0x8265, 0x3EC9, 0x8319, + 0x1342, 0xD36E, 0x3EC7, 0xB3FF, 0x0000, 0x8365, 0x1420, 0x9570, +}; + +static const unsigned short init4[128] = { + 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5, + 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x0F7C, 0x167E, 0x7254, + 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x0BAA, 0x1B6D, 0x7234, + 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x06E7, 0x229E, 0x7224, + + 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x07F6, 0x2C28, 0x7254, + 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x0F02, 0x1341, 0x7264, + 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x0FA9, 0x3EB5, 0x7294, + 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0x44C3, 0x3EBB, 0x45C3, + + 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x0671, 0x14FD, 0x0287, + 0x3EBC, 0xE610, 0x3EC8, 0x0C7B, 0x031A, 0x07E6, 0x3EC8, 0x86F7, + 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x021F, 0x3ECA, 0x0386, + 0x3EC1, 0x0C03, 0x3EC9, 0x031E, 0x3ECA, 0x8C4C, 0x3EBF, 0x0C55, + + 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x0EAD, 0x3EC8, 0xD308, + 0x3EC2, 0x8F7E, 0x3ECB, 0x0219, 0x3ECB, 0xD26E, 0x3EC5, 0x031F, + 0x3EC6, 0xC308, 0x3EC3, 0x32FF, 0x3EC9, 0x0265, 0x3EC9, 0x8319, + 0x1342, 0xD36E, 0x3EC7, 0x33FF, 0x0000, 0x8365, 0x1420, 0x9570, +}; + +/* send an initialization array + * Taken from the oss driver, not obvious from the doc how this + * is meant to work + */ +static void +send_array(struct snd_emu8000 *emu, const unsigned short *data, int size) +{ + int i; + const unsigned short *p; + + p = data; + for (i = 0; i < size; i++, p++) + EMU8000_INIT1_WRITE(emu, i, *p); + for (i = 0; i < size; i++, p++) + EMU8000_INIT2_WRITE(emu, i, *p); + for (i = 0; i < size; i++, p++) + EMU8000_INIT3_WRITE(emu, i, *p); + for (i = 0; i < size; i++, p++) + EMU8000_INIT4_WRITE(emu, i, *p); +} + + +/* + * Send initialization arrays to start up, this just follows the + * initialisation sequence in the adip. + */ +static void +init_arrays(struct snd_emu8000 *emu) +{ + send_array(emu, init1, ARRAY_SIZE(init1)/4); + + msleep((1024 * 1000) / 44100); /* wait for 1024 clocks */ + send_array(emu, init2, ARRAY_SIZE(init2)/4); + send_array(emu, init3, ARRAY_SIZE(init3)/4); + + EMU8000_HWCF4_WRITE(emu, 0); + EMU8000_HWCF5_WRITE(emu, 0x83); + EMU8000_HWCF6_WRITE(emu, 0x8000); + + send_array(emu, init4, ARRAY_SIZE(init4)/4); +} + + +#define UNIQUE_ID1 0xa5b9 +#define UNIQUE_ID2 0x9d53 + +/* + * Size the onboard memory. + * This is written so as not to need arbitrary delays after the write. It + * seems that the only way to do this is to use the one channel and keep + * reallocating between read and write. + */ +static void +size_dram(struct snd_emu8000 *emu) +{ + int i, size; + + if (emu->dram_checked) + return; + + size = 0; + + /* write out a magic number */ + snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_WRITE); + snd_emu8000_dma_chan(emu, 1, EMU8000_RAM_READ); + EMU8000_SMALW_WRITE(emu, EMU8000_DRAM_OFFSET); + EMU8000_SMLD_WRITE(emu, UNIQUE_ID1); + snd_emu8000_init_fm(emu); /* This must really be here and not 2 lines back even */ + snd_emu8000_write_wait(emu); + + /* + * Detect first 512 KiB. If a write succeeds at the beginning of a + * 512 KiB page we assume that the whole page is there. + */ + EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET); + EMU8000_SMLD_READ(emu); /* discard stale data */ + if (EMU8000_SMLD_READ(emu) != UNIQUE_ID1) + goto skip_detect; /* No RAM */ + snd_emu8000_read_wait(emu); + + for (size = 512 * 1024; size < EMU8000_MAX_DRAM; size += 512 * 1024) { + + /* Write a unique data on the test address. + * if the address is out of range, the data is written on + * 0x200000(=EMU8000_DRAM_OFFSET). Then the id word is + * changed by this data. + */ + /*snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_WRITE);*/ + EMU8000_SMALW_WRITE(emu, EMU8000_DRAM_OFFSET + (size>>1)); + EMU8000_SMLD_WRITE(emu, UNIQUE_ID2); + snd_emu8000_write_wait(emu); + + /* + * read the data on the just written DRAM address + * if not the same then we have reached the end of ram. + */ + /*snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_READ);*/ + EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET + (size>>1)); + /*snd_emu8000_read_wait(emu);*/ + EMU8000_SMLD_READ(emu); /* discard stale data */ + if (EMU8000_SMLD_READ(emu) != UNIQUE_ID2) + break; /* no memory at this address */ + snd_emu8000_read_wait(emu); + + /* + * If it is the same it could be that the address just + * wraps back to the beginning; so check to see if the + * initial value has been overwritten. + */ + EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET); + EMU8000_SMLD_READ(emu); /* discard stale data */ + if (EMU8000_SMLD_READ(emu) != UNIQUE_ID1) + break; /* we must have wrapped around */ + snd_emu8000_read_wait(emu); + + /* Otherwise, it's valid memory. */ + } + +skip_detect: + /* wait until FULL bit in SMAxW register is false */ + for (i = 0; i < 10000; i++) { + if ((EMU8000_SMALW_READ(emu) & 0x80000000) == 0) + break; + schedule_timeout_interruptible(1); + if (signal_pending(current)) + break; + } + snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_CLOSE); + snd_emu8000_dma_chan(emu, 1, EMU8000_RAM_CLOSE); + + pr_info("EMU8000 [0x%lx]: %d KiB on-board DRAM detected\n", + emu->port1, size/1024); + + emu->mem_size = size; + emu->dram_checked = 1; +} + + +/* + * Initiailise the FM section. You have to do this to use sample RAM + * and therefore lose 2 voices. + */ +/*exported*/ void +snd_emu8000_init_fm(struct snd_emu8000 *emu) +{ + unsigned long flags; + + /* Initialize the last two channels for DRAM refresh and producing + the reverb and chorus effects for Yamaha OPL-3 synthesizer */ + + /* 31: FM left channel, 0xffffe0-0xffffe8 */ + EMU8000_DCYSUSV_WRITE(emu, 30, 0x80); + EMU8000_PSST_WRITE(emu, 30, 0xFFFFFFE0); /* full left */ + EMU8000_CSL_WRITE(emu, 30, 0x00FFFFE8 | (emu->fm_chorus_depth << 24)); + EMU8000_PTRX_WRITE(emu, 30, (emu->fm_reverb_depth << 8)); + EMU8000_CPF_WRITE(emu, 30, 0); + EMU8000_CCCA_WRITE(emu, 30, 0x00FFFFE3); + + /* 32: FM right channel, 0xfffff0-0xfffff8 */ + EMU8000_DCYSUSV_WRITE(emu, 31, 0x80); + EMU8000_PSST_WRITE(emu, 31, 0x00FFFFF0); /* full right */ + EMU8000_CSL_WRITE(emu, 31, 0x00FFFFF8 | (emu->fm_chorus_depth << 24)); + EMU8000_PTRX_WRITE(emu, 31, (emu->fm_reverb_depth << 8)); + EMU8000_CPF_WRITE(emu, 31, 0x8000); + EMU8000_CCCA_WRITE(emu, 31, 0x00FFFFF3); + + snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0); + + spin_lock_irqsave(&emu->reg_lock, flags); + while (!(inw(EMU8000_PTR(emu)) & 0x1000)) + ; + while ((inw(EMU8000_PTR(emu)) & 0x1000)) + ; + spin_unlock_irqrestore(&emu->reg_lock, flags); + snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0x4828); + /* this is really odd part.. */ + outb(0x3C, EMU8000_PTR(emu)); + outb(0, EMU8000_DATA1(emu)); + + /* skew volume & cutoff */ + EMU8000_VTFT_WRITE(emu, 30, 0x8000FFFF); + EMU8000_VTFT_WRITE(emu, 31, 0x8000FFFF); +} + + +/* + * The main initialization routine. + */ +static void +snd_emu8000_init_hw(struct snd_emu8000 *emu) +{ + int i; + + emu->last_reg = 0xffff; /* reset the last register index */ + + /* initialize hardware configuration */ + EMU8000_HWCF1_WRITE(emu, 0x0059); + EMU8000_HWCF2_WRITE(emu, 0x0020); + + /* disable audio; this seems to reduce a clicking noise a bit.. */ + EMU8000_HWCF3_WRITE(emu, 0); + + /* initialize audio channels */ + init_audio(emu); + + /* initialize DMA */ + init_dma(emu); + + /* initialize init arrays */ + init_arrays(emu); + + /* + * Initialize the FM section of the AWE32, this is needed + * for DRAM refresh as well + */ + snd_emu8000_init_fm(emu); + + /* terminate all voices */ + for (i = 0; i < EMU8000_DRAM_VOICES; i++) + EMU8000_DCYSUSV_WRITE(emu, 0, 0x807F); + + /* check DRAM memory size */ + size_dram(emu); + + /* enable audio */ + EMU8000_HWCF3_WRITE(emu, 0x4); + + /* set equzlier, chorus and reverb modes */ + snd_emu8000_update_equalizer(emu); + snd_emu8000_update_chorus_mode(emu); + snd_emu8000_update_reverb_mode(emu); +} + + +/*---------------------------------------------------------------- + * Bass/Treble Equalizer + *----------------------------------------------------------------*/ + +static const unsigned short bass_parm[12][3] = { + {0xD26A, 0xD36A, 0x0000}, /* -12 dB */ + {0xD25B, 0xD35B, 0x0000}, /* -8 */ + {0xD24C, 0xD34C, 0x0000}, /* -6 */ + {0xD23D, 0xD33D, 0x0000}, /* -4 */ + {0xD21F, 0xD31F, 0x0000}, /* -2 */ + {0xC208, 0xC308, 0x0001}, /* 0 (HW default) */ + {0xC219, 0xC319, 0x0001}, /* +2 */ + {0xC22A, 0xC32A, 0x0001}, /* +4 */ + {0xC24C, 0xC34C, 0x0001}, /* +6 */ + {0xC26E, 0xC36E, 0x0001}, /* +8 */ + {0xC248, 0xC384, 0x0002}, /* +10 */ + {0xC26A, 0xC36A, 0x0002}, /* +12 dB */ +}; + +static const unsigned short treble_parm[12][9] = { + {0x821E, 0xC26A, 0x031E, 0xC36A, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, /* -12 dB */ + {0x821E, 0xC25B, 0x031E, 0xC35B, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xC24C, 0x031E, 0xC34C, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xC23D, 0x031E, 0xC33D, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xC21F, 0x031E, 0xC31F, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021E, 0xD208, 0x831E, 0xD308, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021D, 0xD219, 0x831D, 0xD319, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021C, 0xD22A, 0x831C, 0xD32A, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021A, 0xD24C, 0x831A, 0xD34C, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, /* +8 (HW default) */ + {0x821D, 0xD219, 0x031D, 0xD319, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, + {0x821C, 0xD22A, 0x031C, 0xD32A, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002} /* +12 dB */ +}; + + +/* + * set Emu8000 digital equalizer; from 0 to 11 [-12dB - 12dB] + */ +/*exported*/ void +snd_emu8000_update_equalizer(struct snd_emu8000 *emu) +{ + unsigned short w; + int bass = emu->bass_level; + int treble = emu->treble_level; + + if (bass < 0 || bass > 11 || treble < 0 || treble > 11) + return; + EMU8000_INIT4_WRITE(emu, 0x01, bass_parm[bass][0]); + EMU8000_INIT4_WRITE(emu, 0x11, bass_parm[bass][1]); + EMU8000_INIT3_WRITE(emu, 0x11, treble_parm[treble][0]); + EMU8000_INIT3_WRITE(emu, 0x13, treble_parm[treble][1]); + EMU8000_INIT3_WRITE(emu, 0x1b, treble_parm[treble][2]); + EMU8000_INIT4_WRITE(emu, 0x07, treble_parm[treble][3]); + EMU8000_INIT4_WRITE(emu, 0x0b, treble_parm[treble][4]); + EMU8000_INIT4_WRITE(emu, 0x0d, treble_parm[treble][5]); + EMU8000_INIT4_WRITE(emu, 0x17, treble_parm[treble][6]); + EMU8000_INIT4_WRITE(emu, 0x19, treble_parm[treble][7]); + w = bass_parm[bass][2] + treble_parm[treble][8]; + EMU8000_INIT4_WRITE(emu, 0x15, (unsigned short)(w + 0x0262)); + EMU8000_INIT4_WRITE(emu, 0x1d, (unsigned short)(w + 0x8362)); +} + + +/*---------------------------------------------------------------- + * Chorus mode control + *----------------------------------------------------------------*/ + +/* + * chorus mode parameters + */ +#define SNDRV_EMU8000_CHORUS_1 0 +#define SNDRV_EMU8000_CHORUS_2 1 +#define SNDRV_EMU8000_CHORUS_3 2 +#define SNDRV_EMU8000_CHORUS_4 3 +#define SNDRV_EMU8000_CHORUS_FEEDBACK 4 +#define SNDRV_EMU8000_CHORUS_FLANGER 5 +#define SNDRV_EMU8000_CHORUS_SHORTDELAY 6 +#define SNDRV_EMU8000_CHORUS_SHORTDELAY2 7 +#define SNDRV_EMU8000_CHORUS_PREDEFINED 8 +/* user can define chorus modes up to 32 */ +#define SNDRV_EMU8000_CHORUS_NUMBERS 32 + +struct soundfont_chorus_fx { + unsigned short feedback; /* feedback level (0xE600-0xE6FF) */ + unsigned short delay_offset; /* delay (0-0x0DA3) [1/44100 sec] */ + unsigned short lfo_depth; /* LFO depth (0xBC00-0xBCFF) */ + unsigned int delay; /* right delay (0-0xFFFFFFFF) [1/256/44100 sec] */ + unsigned int lfo_freq; /* LFO freq LFO freq (0-0xFFFFFFFF) */ +}; + +/* 5 parameters for each chorus mode; 3 x 16bit, 2 x 32bit */ +static char chorus_defined[SNDRV_EMU8000_CHORUS_NUMBERS]; +static struct soundfont_chorus_fx chorus_parm[SNDRV_EMU8000_CHORUS_NUMBERS] = { + {0xE600, 0x03F6, 0xBC2C ,0x00000000, 0x0000006D}, /* chorus 1 */ + {0xE608, 0x031A, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 2 */ + {0xE610, 0x031A, 0xBC84, 0x00000000, 0x00000083}, /* chorus 3 */ + {0xE620, 0x0269, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 4 */ + {0xE680, 0x04D3, 0xBCA6, 0x00000000, 0x0000005B}, /* feedback */ + {0xE6E0, 0x044E, 0xBC37, 0x00000000, 0x00000026}, /* flanger */ + {0xE600, 0x0B06, 0xBC00, 0x0006E000, 0x00000083}, /* short delay */ + {0xE6C0, 0x0B06, 0xBC00, 0x0006E000, 0x00000083}, /* short delay + feedback */ +}; + +/*exported*/ int +snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len) +{ + struct soundfont_chorus_fx rec; + if (mode < SNDRV_EMU8000_CHORUS_PREDEFINED || mode >= SNDRV_EMU8000_CHORUS_NUMBERS) { + snd_printk(KERN_WARNING "invalid chorus mode %d for uploading\n", mode); + return -EINVAL; + } + if (len < (long)sizeof(rec) || copy_from_user(&rec, buf, sizeof(rec))) + return -EFAULT; + chorus_parm[mode] = rec; + chorus_defined[mode] = 1; + return 0; +} + +/*exported*/ void +snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu) +{ + int effect = emu->chorus_mode; + if (effect < 0 || effect >= SNDRV_EMU8000_CHORUS_NUMBERS || + (effect >= SNDRV_EMU8000_CHORUS_PREDEFINED && !chorus_defined[effect])) + return; + EMU8000_INIT3_WRITE(emu, 0x09, chorus_parm[effect].feedback); + EMU8000_INIT3_WRITE(emu, 0x0c, chorus_parm[effect].delay_offset); + EMU8000_INIT4_WRITE(emu, 0x03, chorus_parm[effect].lfo_depth); + EMU8000_HWCF4_WRITE(emu, chorus_parm[effect].delay); + EMU8000_HWCF5_WRITE(emu, chorus_parm[effect].lfo_freq); + EMU8000_HWCF6_WRITE(emu, 0x8000); + EMU8000_HWCF7_WRITE(emu, 0x0000); +} + +/*---------------------------------------------------------------- + * Reverb mode control + *----------------------------------------------------------------*/ + +/* + * reverb mode parameters + */ +#define SNDRV_EMU8000_REVERB_ROOM1 0 +#define SNDRV_EMU8000_REVERB_ROOM2 1 +#define SNDRV_EMU8000_REVERB_ROOM3 2 +#define SNDRV_EMU8000_REVERB_HALL1 3 +#define SNDRV_EMU8000_REVERB_HALL2 4 +#define SNDRV_EMU8000_REVERB_PLATE 5 +#define SNDRV_EMU8000_REVERB_DELAY 6 +#define SNDRV_EMU8000_REVERB_PANNINGDELAY 7 +#define SNDRV_EMU8000_REVERB_PREDEFINED 8 +/* user can define reverb modes up to 32 */ +#define SNDRV_EMU8000_REVERB_NUMBERS 32 + +struct soundfont_reverb_fx { + unsigned short parms[28]; +}; + +/* reverb mode settings; write the following 28 data of 16 bit length + * on the corresponding ports in the reverb_cmds array + */ +static char reverb_defined[SNDRV_EMU8000_CHORUS_NUMBERS]; +static struct soundfont_reverb_fx reverb_parm[SNDRV_EMU8000_REVERB_NUMBERS] = { +{{ /* room 1 */ + 0xB488, 0xA450, 0x9550, 0x84B5, 0x383A, 0x3EB5, 0x72F4, + 0x72A4, 0x7254, 0x7204, 0x7204, 0x7204, 0x4416, 0x4516, + 0xA490, 0xA590, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* room 2 */ + 0xB488, 0xA458, 0x9558, 0x84B5, 0x383A, 0x3EB5, 0x7284, + 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548, + 0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* room 3 */ + 0xB488, 0xA460, 0x9560, 0x84B5, 0x383A, 0x3EB5, 0x7284, + 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4416, 0x4516, + 0xA490, 0xA590, 0x842C, 0x852C, 0x842C, 0x852C, 0x842B, + 0x852B, 0x842B, 0x852B, 0x842A, 0x852A, 0x842A, 0x852A, +}}, +{{ /* hall 1 */ + 0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7284, + 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548, + 0xA440, 0xA540, 0x842B, 0x852B, 0x842B, 0x852B, 0x842A, + 0x852A, 0x842A, 0x852A, 0x8429, 0x8529, 0x8429, 0x8529, +}}, +{{ /* hall 2 */ + 0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7254, + 0x7234, 0x7224, 0x7254, 0x7264, 0x7294, 0x44C3, 0x45C3, + 0xA404, 0xA504, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* plate */ + 0xB4FF, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7234, + 0x7234, 0x7234, 0x7234, 0x7234, 0x7234, 0x4448, 0x4548, + 0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* delay */ + 0xB4FF, 0xA470, 0x9500, 0x84B5, 0x333A, 0x39B5, 0x7204, + 0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500, + 0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, + 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, +}}, +{{ /* panning delay */ + 0xB4FF, 0xA490, 0x9590, 0x8474, 0x333A, 0x39B5, 0x7204, + 0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500, + 0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, + 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, +}}, +}; + +enum { DATA1, DATA2 }; +#define AWE_INIT1(c) EMU8000_CMD(2,c), DATA1 +#define AWE_INIT2(c) EMU8000_CMD(2,c), DATA2 +#define AWE_INIT3(c) EMU8000_CMD(3,c), DATA1 +#define AWE_INIT4(c) EMU8000_CMD(3,c), DATA2 + +static struct reverb_cmd_pair { + unsigned short cmd, port; +} reverb_cmds[28] = { + {AWE_INIT1(0x03)}, {AWE_INIT1(0x05)}, {AWE_INIT4(0x1F)}, {AWE_INIT1(0x07)}, + {AWE_INIT2(0x14)}, {AWE_INIT2(0x16)}, {AWE_INIT1(0x0F)}, {AWE_INIT1(0x17)}, + {AWE_INIT1(0x1F)}, {AWE_INIT2(0x07)}, {AWE_INIT2(0x0F)}, {AWE_INIT2(0x17)}, + {AWE_INIT2(0x1D)}, {AWE_INIT2(0x1F)}, {AWE_INIT3(0x01)}, {AWE_INIT3(0x03)}, + {AWE_INIT1(0x09)}, {AWE_INIT1(0x0B)}, {AWE_INIT1(0x11)}, {AWE_INIT1(0x13)}, + {AWE_INIT1(0x19)}, {AWE_INIT1(0x1B)}, {AWE_INIT2(0x01)}, {AWE_INIT2(0x03)}, + {AWE_INIT2(0x09)}, {AWE_INIT2(0x0B)}, {AWE_INIT2(0x11)}, {AWE_INIT2(0x13)}, +}; + +/*exported*/ int +snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len) +{ + struct soundfont_reverb_fx rec; + + if (mode < SNDRV_EMU8000_REVERB_PREDEFINED || mode >= SNDRV_EMU8000_REVERB_NUMBERS) { + snd_printk(KERN_WARNING "invalid reverb mode %d for uploading\n", mode); + return -EINVAL; + } + if (len < (long)sizeof(rec) || copy_from_user(&rec, buf, sizeof(rec))) + return -EFAULT; + reverb_parm[mode] = rec; + reverb_defined[mode] = 1; + return 0; +} + +/*exported*/ void +snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu) +{ + int effect = emu->reverb_mode; + int i; + + if (effect < 0 || effect >= SNDRV_EMU8000_REVERB_NUMBERS || + (effect >= SNDRV_EMU8000_REVERB_PREDEFINED && !reverb_defined[effect])) + return; + for (i = 0; i < 28; i++) { + int port; + if (reverb_cmds[i].port == DATA1) + port = EMU8000_DATA1(emu); + else + port = EMU8000_DATA2(emu); + snd_emu8000_poke(emu, port, reverb_cmds[i].cmd, reverb_parm[effect].parms[i]); + } +} + + +/*---------------------------------------------------------------- + * mixer interface + *----------------------------------------------------------------*/ + +/* + * bass/treble + */ +static int mixer_bass_treble_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 11; + return 0; +} + +static int mixer_bass_treble_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->treble_level : emu->bass_level; + return 0; +} + +static int mixer_bass_treble_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol); + unsigned long flags; + int change; + unsigned short val1; + + val1 = ucontrol->value.integer.value[0] % 12; + spin_lock_irqsave(&emu->control_lock, flags); + if (kcontrol->private_value) { + change = val1 != emu->treble_level; + emu->treble_level = val1; + } else { + change = val1 != emu->bass_level; + emu->bass_level = val1; + } + spin_unlock_irqrestore(&emu->control_lock, flags); + snd_emu8000_update_equalizer(emu); + return change; +} + +static const struct snd_kcontrol_new mixer_bass_control = +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Synth Tone Control - Bass", + .info = mixer_bass_treble_info, + .get = mixer_bass_treble_get, + .put = mixer_bass_treble_put, + .private_value = 0, +}; + +static const struct snd_kcontrol_new mixer_treble_control = +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Synth Tone Control - Treble", + .info = mixer_bass_treble_info, + .get = mixer_bass_treble_get, + .put = mixer_bass_treble_put, + .private_value = 1, +}; + +/* + * chorus/reverb mode + */ +static int mixer_chorus_reverb_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = kcontrol->private_value ? (SNDRV_EMU8000_CHORUS_NUMBERS-1) : (SNDRV_EMU8000_REVERB_NUMBERS-1); + return 0; +} + +static int mixer_chorus_reverb_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->chorus_mode : emu->reverb_mode; + return 0; +} + +static int mixer_chorus_reverb_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol); + unsigned long flags; + int change; + unsigned short val1; + + spin_lock_irqsave(&emu->control_lock, flags); + if (kcontrol->private_value) { + val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_CHORUS_NUMBERS; + change = val1 != emu->chorus_mode; + emu->chorus_mode = val1; + } else { + val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_REVERB_NUMBERS; + change = val1 != emu->reverb_mode; + emu->reverb_mode = val1; + } + spin_unlock_irqrestore(&emu->control_lock, flags); + if (change) { + if (kcontrol->private_value) + snd_emu8000_update_chorus_mode(emu); + else + snd_emu8000_update_reverb_mode(emu); + } + return change; +} + +static const struct snd_kcontrol_new mixer_chorus_mode_control = +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Chorus Mode", + .info = mixer_chorus_reverb_info, + .get = mixer_chorus_reverb_get, + .put = mixer_chorus_reverb_put, + .private_value = 1, +}; + +static const struct snd_kcontrol_new mixer_reverb_mode_control = +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Reverb Mode", + .info = mixer_chorus_reverb_info, + .get = mixer_chorus_reverb_get, + .put = mixer_chorus_reverb_put, + .private_value = 0, +}; + +/* + * FM OPL3 chorus/reverb depth + */ +static int mixer_fm_depth_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 255; + return 0; +} + +static int mixer_fm_depth_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->fm_chorus_depth : emu->fm_reverb_depth; + return 0; +} + +static int mixer_fm_depth_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol); + unsigned long flags; + int change; + unsigned short val1; + + val1 = ucontrol->value.integer.value[0] % 256; + spin_lock_irqsave(&emu->control_lock, flags); + if (kcontrol->private_value) { + change = val1 != emu->fm_chorus_depth; + emu->fm_chorus_depth = val1; + } else { + change = val1 != emu->fm_reverb_depth; + emu->fm_reverb_depth = val1; + } + spin_unlock_irqrestore(&emu->control_lock, flags); + if (change) + snd_emu8000_init_fm(emu); + return change; +} + +static const struct snd_kcontrol_new mixer_fm_chorus_depth_control = +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "FM Chorus Depth", + .info = mixer_fm_depth_info, + .get = mixer_fm_depth_get, + .put = mixer_fm_depth_put, + .private_value = 1, +}; + +static const struct snd_kcontrol_new mixer_fm_reverb_depth_control = +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "FM Reverb Depth", + .info = mixer_fm_depth_info, + .get = mixer_fm_depth_get, + .put = mixer_fm_depth_put, + .private_value = 0, +}; + + +static const struct snd_kcontrol_new *mixer_defs[EMU8000_NUM_CONTROLS] = { + &mixer_bass_control, + &mixer_treble_control, + &mixer_chorus_mode_control, + &mixer_reverb_mode_control, + &mixer_fm_chorus_depth_control, + &mixer_fm_reverb_depth_control, +}; + +/* + * create and attach mixer elements for WaveTable treble/bass controls + */ +static int +snd_emu8000_create_mixer(struct snd_card *card, struct snd_emu8000 *emu) +{ + int i, err = 0; + + if (snd_BUG_ON(!emu || !card)) + return -EINVAL; + + spin_lock_init(&emu->control_lock); + + memset(emu->controls, 0, sizeof(emu->controls)); + for (i = 0; i < EMU8000_NUM_CONTROLS; i++) { + if ((err = snd_ctl_add(card, emu->controls[i] = snd_ctl_new1(mixer_defs[i], emu))) < 0) { + emu->controls[i] = NULL; + goto __error; + } + } + return 0; + +__error: + for (i = 0; i < EMU8000_NUM_CONTROLS; i++) { + down_write(&card->controls_rwsem); + if (emu->controls[i]) + snd_ctl_remove(card, emu->controls[i]); + up_write(&card->controls_rwsem); + } + return err; +} + + +/* + * free resources + */ +static int snd_emu8000_free(struct snd_emu8000 *hw) +{ + release_and_free_resource(hw->res_port1); + release_and_free_resource(hw->res_port2); + release_and_free_resource(hw->res_port3); + kfree(hw); + return 0; +} + +/* + */ +static int snd_emu8000_dev_free(struct snd_device *device) +{ + struct snd_emu8000 *hw = device->device_data; + return snd_emu8000_free(hw); +} + +/* + * initialize and register emu8000 synth device. + */ +int +snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports, + struct snd_seq_device **awe_ret) +{ + struct snd_seq_device *awe; + struct snd_emu8000 *hw; + int err; + static const struct snd_device_ops ops = { + .dev_free = snd_emu8000_dev_free, + }; + + if (awe_ret) + *awe_ret = NULL; + + if (seq_ports <= 0) + return 0; + + hw = kzalloc(sizeof(*hw), GFP_KERNEL); + if (hw == NULL) + return -ENOMEM; + spin_lock_init(&hw->reg_lock); + hw->index = index; + hw->port1 = port; + hw->port2 = port + 0x400; + hw->port3 = port + 0x800; + if (!(hw->res_port1 = request_region(hw->port1, 4, "Emu8000-1")) || + !(hw->res_port2 = request_region(hw->port2, 4, "Emu8000-2")) || + !(hw->res_port3 = request_region(hw->port3, 4, "Emu8000-3"))) { + snd_printk(KERN_ERR "sbawe: can't grab ports 0x%lx, 0x%lx, 0x%lx\n", hw->port1, hw->port2, hw->port3); + snd_emu8000_free(hw); + return -EBUSY; + } + hw->mem_size = 0; + hw->card = card; + hw->seq_ports = seq_ports; + hw->bass_level = 5; + hw->treble_level = 9; + hw->chorus_mode = 2; + hw->reverb_mode = 4; + hw->fm_chorus_depth = 0; + hw->fm_reverb_depth = 0; + + if (snd_emu8000_detect(hw) < 0) { + snd_emu8000_free(hw); + return -ENODEV; + } + + snd_emu8000_init_hw(hw); + if ((err = snd_emu8000_create_mixer(card, hw)) < 0) { + snd_emu8000_free(hw); + return err; + } + + if ((err = snd_device_new(card, SNDRV_DEV_CODEC, hw, &ops)) < 0) { + snd_emu8000_free(hw); + return err; + } +#if IS_ENABLED(CONFIG_SND_SEQUENCER) + if (snd_seq_device_new(card, index, SNDRV_SEQ_DEV_ID_EMU8000, + sizeof(struct snd_emu8000*), &awe) >= 0) { + strcpy(awe->name, "EMU-8000"); + *(struct snd_emu8000 **)SNDRV_SEQ_DEVICE_ARGPTR(awe) = hw; + } +#else + awe = NULL; +#endif + if (awe_ret) + *awe_ret = awe; + + return 0; +} + + +/* + * exported stuff + */ + +EXPORT_SYMBOL(snd_emu8000_poke); +EXPORT_SYMBOL(snd_emu8000_peek); +EXPORT_SYMBOL(snd_emu8000_poke_dw); +EXPORT_SYMBOL(snd_emu8000_peek_dw); +EXPORT_SYMBOL(snd_emu8000_dma_chan); +EXPORT_SYMBOL(snd_emu8000_init_fm); +EXPORT_SYMBOL(snd_emu8000_load_chorus_fx); +EXPORT_SYMBOL(snd_emu8000_load_reverb_fx); +EXPORT_SYMBOL(snd_emu8000_update_chorus_mode); +EXPORT_SYMBOL(snd_emu8000_update_reverb_mode); +EXPORT_SYMBOL(snd_emu8000_update_equalizer); |