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linux/sound/oss/aedsp16.c
David Howells 232b0b0829 Annotate hardware config module parameters in sound/oss/ 
When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image.  Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.

To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify.  The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.

Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.

This patch annotates drivers in sound/oss/.

Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jaroslav Kysela <perex@perex.cz>
cc: Takashi Iwai <tiwai@suse.com>
cc: Andrew Veliath <andrewtv@usa.net>
cc: alsa-devel@alsa-project.org
2017-04-20 12:02:32 +01:00

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/*
sound/oss/aedsp16.c
Audio Excel DSP 16 software configuration routines
Copyright (C) 1995,1996,1997,1998 Riccardo Facchetti (fizban@tin.it)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Include the main OSS Lite header file. It include all the os, OSS Lite, etc
* headers needed by this source.
*/
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/init.h>
#include "sound_config.h"
/*
READ THIS
This module started to configure the Audio Excel DSP 16 Sound Card.
Now works with the SC-6000 (old aedsp16) and new SC-6600 based cards.
NOTE: I have NO idea about Audio Excel DSP 16 III. If someone owns this
audio card and want to see the kernel support for it, please contact me.
Audio Excel DSP 16 is an SB pro II, Microsoft Sound System and MPU-401
compatible card.
It is software-only configurable (no jumpers to hard-set irq/dma/mpu-irq),
so before this module, the only way to configure the DSP under linux was
boot the MS-DOS loading the sound.sys device driver (this driver soft-
configure the sound board hardware by massaging someone of its registers),
and then ctrl-alt-del to boot linux with the DSP configured by the DOS
driver.
This module works configuring your Audio Excel DSP 16's irq, dma and
mpu-401-irq. The OSS Lite routines rely on the fact that if the
hardware is there, they can detect it. The problem with AEDSP16 is
that no hardware can be found by the probe routines if the sound card
is not configured properly. Sometimes the kernel probe routines can find
an SBPRO even when the card is not configured (this is the standard setup
of the card), but the SBPRO emulation don't work well if the card is not
properly initialized. For this reason
aedsp16_init_board()
routine is called before the OSS Lite probe routines try to detect the
hardware.
NOTE (READ THE NOTE TOO, IT CONTAIN USEFUL INFORMATIONS)
NOTE: Now it works with SC-6000 and SC-6600 based audio cards. The new cards
have no jumper switch at all. No more WSS or MPU-401 I/O port switches. They
have to be configured by software.
NOTE: The driver is merged with the new OSS Lite sound driver. It works
as a lowlevel driver.
The Audio Excel DSP 16 Sound Card emulates both SBPRO and MSS;
the OSS Lite sound driver can be configured for SBPRO and MSS cards
at the same time, but the aedsp16 can't be two cards!!
When we configure it, we have to choose the SBPRO or the MSS emulation
for AEDSP16. We also can install a *REAL* card of the other type (see [1]).
NOTE: If someone can test the combination AEDSP16+MSS or AEDSP16+SBPRO
please let me know if it works.
The MPU-401 support can be compiled in together with one of the other
two operating modes.
NOTE: This is something like plug-and-play: we have only to plug
the AEDSP16 board in the socket, and then configure and compile
a kernel that uses the AEDSP16 software configuration capability.
No jumper setting is needed!
For example, if you want AEDSP16 to be an SBPro, on irq 10, dma 3
you have just to make config the OSS Lite package, configuring
the AEDSP16 sound card, then activating the SBPro emulation mode
and at last configuring IRQ and DMA.
Compile the kernel and run it.
NOTE: This means for SC-6000 cards that you can choose irq and dma,
but not the I/O addresses. To change I/O addresses you have to set
them with jumpers. For SC-6600 cards you have no jumpers so you have
to set up your full card configuration in the make config.
You can change the irq/dma/mirq settings WITHOUT THE NEED to open
your computer and massage the jumpers (there are no irq/dma/mirq
jumpers to be configured anyway, only I/O BASE values have to be
configured with jumpers)
For some ununderstandable reason, the card default of irq 7, dma 1,
don't work for me. Seems to be an IRQ or DMA conflict. Under heavy
HDD work, the kernel start to erupt out a lot of messages like:
'Sound: DMA timed out - IRQ/DRQ config error?'
For what I can say, I have NOT any conflict at irq 7 (under linux I'm
using the lp polling driver), and dma line 1 is unused as stated by
/proc/dma. I can suppose this is a bug of AEDSP16. I know my hardware so
I'm pretty sure I have not any conflict, but may be I'm wrong. Who knows!
Anyway a setting of irq 10, dma 3 works really fine.
NOTE: if someone can use AEDSP16 with irq 7, dma 1, please let me know
the emulation mode, all the installed hardware and the hardware
configuration (irq and dma settings of all the hardware).
This init module should work with SBPRO+MSS, when one of the two is
the AEDSP16 emulation and the other the real card. (see [1])
For example:
AEDSP16 (0x220) in SBPRO emu (0x220) + real MSS + other
AEDSP16 (0x220) in MSS emu + real SBPRO (0x240) + other
MPU401 should work. (see [2])
[1]
---
Date: Mon, 29 Jul 1997 08:35:40 +0100
From: Mr S J Greenaway <sjg95@unixfe.rl.ac.uk>
[...]
Just to let you know got my Audio Excel (emulating a MSS) working
with my original SB16, thanks for the driver!
[...]
---
[2] Not tested by me for lack of hardware.
TODO, WISHES AND TECH
- About I/O ports allocation -
Request the 2x0h region (port base) in any case if we are using this card.
NOTE: the "aedsp16 (base)" string with which we are requesting the aedsp16
port base region (see code) does not mean necessarily that we are emulating
sbpro. Even if this region is the sbpro I/O ports region, we use this
region to access the control registers of the card, and if emulating
sbpro, I/O sbpro registers too. If we are emulating MSS, the sbpro
registers are not used, in no way, to emulate an sbpro: they are
used only for configuration purposes.
Started Fri Mar 17 16:13:18 MET 1995
v0.1 (ALPHA, was a user-level program called AudioExcelDSP16.c)
- Initial code.
v0.2 (ALPHA)
- Cleanups.
- Integrated with Linux voxware v 2.90-2 kernel sound driver.
- SoundBlaster Pro mode configuration.
- Microsoft Sound System mode configuration.
- MPU-401 mode configuration.
v0.3 (ALPHA)
- Cleanups.
- Rearranged the code to let aedsp16_init_board be more general.
- Erased the REALLY_SLOW_IO. We don't need it. Erased the linux/io.h
inclusion too. We rely on os.h
- Used the to get a variable
len string (we are not sure about the len of Copyright string).
This works with any SB and compatible.
- Added the code to request_region at device init (should go in
the main body of voxware).
v0.4 (BETA)
- Better configure.c patch for aedsp16 configuration (better
logic of inclusion of AEDSP16 support)
- Modified the conditional compilation to better support more than
one sound card of the emulated type (read the NOTES above)
- Moved the sb init routine from the attach to the very first
probe in sb_card.c
- Rearrangements and cleanups
- Wiped out some unnecessary code and variables: this is kernel
code so it is better save some TEXT and DATA
- Fixed the request_region code. We must allocate the aedsp16 (sbpro)
I/O ports in any case because they are used to access the DSP
configuration registers and we can not allow anyone to get them.
v0.5
- cleanups on comments
- prep for diffs against v3.0-proto-950402
v0.6
- removed the request_region()s when compiling the MODULE sound.o
because we are not allowed (by the actual voxware structure) to
release_region()
v0.7 (pre ALPHA, not distributed)
- started porting this module to kernel 1.3.84. Dummy probe/attach
routines.
v0.8 (ALPHA)
- attached all the init routines.
v0.9 (BETA)
- Integrated with linux-pre2.0.7
- Integrated with configuration scripts.
- Cleaned up and beautyfied the code.
v0.9.9 (BETA)
- Thanks to Piercarlo Grandi: corrected the conditonal compilation code.
Now only the code configured is compiled in, with some memory saving.
v0.9.10
- Integration into the sound/lowlevel/ section of the sound driver.
- Re-organized the code.
v0.9.11 (not distributed)
- Rewritten the init interface-routines to initialize the AEDSP16 in
one shot.
- More cosmetics.
- SC-6600 support.
- More soft/hard configuration.
v0.9.12
- Refined the v0.9.11 code with conditional compilation to distinguish
between SC-6000 and SC-6600 code.
v1.0.0
- Prep for merging with OSS Lite and Linux kernel 2.1.13
- Corrected a bug in request/check/release region calls (thanks to the
new kernel exception handling).
v1.1
- Revamped for integration with new modularized sound drivers: to enhance
the flexibility of modular version, I have removed all the conditional
compilation for SBPRO, MPU and MSS code. Now it is all managed with
the ae_config structure.
v1.2
- Module informations added.
- Removed aedsp16_delay_10msec(), now using mdelay(10)
- All data and funcs moved to .*.init section.
v1.3
Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 2000/09/27
- got rid of check_region
Known Problems:
- Audio Excel DSP 16 III don't work with this driver.
Credits:
Many thanks to Gerald Britton <gbritton@CapAccess.org>. He helped me a
lot in testing the 0.9.11 and 0.9.12 versions of this driver.
*/
#define VERSION "1.3" /* Version of Audio Excel DSP 16 driver */
#undef AEDSP16_DEBUG /* Define this to 1 to enable debug code */
#undef AEDSP16_DEBUG_MORE /* Define this to 1 to enable more debug */
#undef AEDSP16_INFO /* Define this to 1 to enable info code */
#if defined(AEDSP16_DEBUG)
# define DBG(x) printk x
# if defined(AEDSP16_DEBUG_MORE)
# define DBG1(x) printk x
# else
# define DBG1(x)
# endif
#else
# define DBG(x)
# define DBG1(x)
#endif
/*
* Misc definitions
*/
#define TRUE 1
#define FALSE 0
/*
* Region Size for request/check/release region.
*/
#define IOBASE_REGION_SIZE 0x10
/*
* Hardware related defaults
*/
#define DEF_AEDSP16_IOB 0x220 /* 0x220(default) 0x240 */
#define DEF_AEDSP16_IRQ 7 /* 5 7(default) 9 10 11 */
#define DEF_AEDSP16_MRQ 0 /* 5 7 9 10 0(default), 0 means disable */
#define DEF_AEDSP16_DMA 1 /* 0 1(default) 3 */
/*
* Commands of AEDSP16's DSP (SBPRO+special).
* Some of them are COMMAND_xx, in the future they may change.
*/
#define WRITE_MDIRQ_CFG 0x50 /* Set M&I&DRQ mask (the real config) */
#define COMMAND_52 0x52 /* */
#define READ_HARD_CFG 0x58 /* Read Hardware Config (I/O base etc) */
#define COMMAND_5C 0x5c /* */
#define COMMAND_60 0x60 /* */
#define COMMAND_66 0x66 /* */
#define COMMAND_6C 0x6c /* */
#define COMMAND_6E 0x6e /* */
#define COMMAND_88 0x88 /* */
#define DSP_INIT_MSS 0x8c /* Enable Microsoft Sound System mode */
#define COMMAND_C5 0xc5 /* */
#define GET_DSP_VERSION 0xe1 /* Get DSP Version */
#define GET_DSP_COPYRIGHT 0xe3 /* Get DSP Copyright */
/*
* Offsets of AEDSP16 DSP I/O ports. The offset is added to base I/O port
* to have the actual I/O port.
* Register permissions are:
* (wo) == Write Only
* (ro) == Read Only
* (w-) == Write
* (r-) == Read
*/
#define DSP_RESET 0x06 /* offset of DSP RESET (wo) */
#define DSP_READ 0x0a /* offset of DSP READ (ro) */
#define DSP_WRITE 0x0c /* offset of DSP WRITE (w-) */
#define DSP_COMMAND 0x0c /* offset of DSP COMMAND (w-) */
#define DSP_STATUS 0x0c /* offset of DSP STATUS (r-) */
#define DSP_DATAVAIL 0x0e /* offset of DSP DATA AVAILABLE (ro) */
#define RETRY 10 /* Various retry values on I/O opera- */
#define STATUSRETRY 1000 /* tions. Sometimes we have to */
#define HARDRETRY 500000 /* wait for previous cmd to complete */
/*
* Size of character arrays that store name and version of sound card
*/
#define CARDNAMELEN 15 /* Size of the card's name in chars */
#define CARDVERLEN 10 /* Size of the card's version in chars */
#define CARDVERDIGITS 2 /* Number of digits in the version */
#if defined(CONFIG_SC6600)
/*
* Bitmapped flags of hard configuration
*/
/*
* Decode macros (xl == low byte, xh = high byte)
*/
#define IOBASE(xl) ((xl & 0x01)?0x240:0x220)
#define JOY(xl) (xl & 0x02)
#define MPUADDR(xl) ( \
(xl & 0x0C)?0x330: \
(xl & 0x08)?0x320: \
(xl & 0x04)?0x310: \
0x300)
#define WSSADDR(xl) ((xl & 0x10)?0xE80:0x530)
#define CDROM(xh) (xh & 0x20)
#define CDROMADDR(xh) (((xh & 0x1F) << 4) + 0x200)
/*
* Encode macros
*/
#define BLDIOBASE(xl, val) { \
xl &= ~0x01; \
if (val == 0x240) \
xl |= 0x01; \
}
#define BLDJOY(xl, val) { \
xl &= ~0x02; \
if (val == 1) \
xl |= 0x02; \
}
#define BLDMPUADDR(xl, val) { \
xl &= ~0x0C; \
switch (val) { \
case 0x330: \
xl |= 0x0C; \
break; \
case 0x320: \
xl |= 0x08; \
break; \
case 0x310: \
xl |= 0x04; \
break; \
case 0x300: \
xl |= 0x00; \
break; \
default: \
xl |= 0x00; \
break; \
} \
}
#define BLDWSSADDR(xl, val) { \
xl &= ~0x10; \
if (val == 0xE80) \
xl |= 0x10; \
}
#define BLDCDROM(xh, val) { \
xh &= ~0x20; \
if (val == 1) \
xh |= 0x20; \
}
#define BLDCDROMADDR(xh, val) { \
int tmp = val; \
tmp -= 0x200; \
tmp >>= 4; \
tmp &= 0x1F; \
xh |= tmp; \
xh &= 0x7F; \
xh |= 0x40; \
}
#endif /* CONFIG_SC6600 */
/*
* Bit mapped flags for calling aedsp16_init_board(), and saving the current
* emulation mode.
*/
#define INIT_NONE (0 )
#define INIT_SBPRO (1<<0)
#define INIT_MSS (1<<1)
#define INIT_MPU401 (1<<2)
static int soft_cfg __initdata = 0; /* bitmapped config */
static int soft_cfg_mss __initdata = 0; /* bitmapped mss config */
static int ver[CARDVERDIGITS] __initdata = {0, 0}; /* DSP Ver:
hi->ver[0] lo->ver[1] */
#if defined(CONFIG_SC6600)
static int hard_cfg[2] /* lo<-hard_cfg[0] hi<-hard_cfg[1] */
__initdata = { 0, 0};
#endif /* CONFIG_SC6600 */
#if defined(CONFIG_SC6600)
/* Decoded hard configuration */
struct d_hcfg {
int iobase;
int joystick;
int mpubase;
int wssbase;
int cdrom;
int cdrombase;
};
static struct d_hcfg decoded_hcfg __initdata = {0, };
#endif /* CONFIG_SC6600 */
/* orVals contain the values to be or'ed */
struct orVals {
int val; /* irq|mirq|dma */
int or; /* soft_cfg |= TheStruct.or */
};
/* aedsp16_info contain the audio card configuration */
struct aedsp16_info {
int base_io; /* base I/O address for accessing card */
int irq; /* irq value for DSP I/O */
int mpu_irq; /* irq for mpu401 interface I/O */
int dma; /* dma value for DSP I/O */
int mss_base; /* base I/O for Microsoft Sound System */
int mpu_base; /* base I/O for MPU-401 emulation */
int init; /* Initialization status of the card */
};
/*
* Magic values that the DSP will eat when configuring irq/mirq/dma
*/
/* DSP IRQ conversion array */
static struct orVals orIRQ[] __initdata = {
{0x05, 0x28},
{0x07, 0x08},
{0x09, 0x10},
{0x0a, 0x18},
{0x0b, 0x20},
{0x00, 0x00}
};
/* MPU-401 IRQ conversion array */
static struct orVals orMIRQ[] __initdata = {
{0x05, 0x04},
{0x07, 0x44},
{0x09, 0x84},
{0x0a, 0xc4},
{0x00, 0x00}
};
/* DMA Channels conversion array */
static struct orVals orDMA[] __initdata = {
{0x00, 0x01},
{0x01, 0x02},
{0x03, 0x03},
{0x00, 0x00}
};
static struct aedsp16_info ae_config = {
.base_io = DEF_AEDSP16_IOB,
.irq = DEF_AEDSP16_IRQ,
.mpu_irq = DEF_AEDSP16_MRQ,
.dma = DEF_AEDSP16_DMA,
.mss_base = -1,
.mpu_base = -1,
.init = INIT_NONE
};
/*
* Buffers to store audio card informations
*/
static char DSPCopyright[CARDNAMELEN + 1] __initdata = {0, };
static char DSPVersion[CARDVERLEN + 1] __initdata = {0, };
static int __init aedsp16_wait_data(int port)
{
int loop = STATUSRETRY;
unsigned char ret = 0;
DBG1(("aedsp16_wait_data (0x%x): ", port));
do {
ret = inb(port + DSP_DATAVAIL);
/*
* Wait for data available (bit 7 of ret == 1)
*/
} while (!(ret & 0x80) && loop--);
if (ret & 0x80) {
DBG1(("success.\n"));
return TRUE;
}
DBG1(("failure.\n"));
return FALSE;
}
static int __init aedsp16_read(int port)
{
int inbyte;
DBG((" Read DSP Byte (0x%x): ", port));
if (aedsp16_wait_data(port) == FALSE) {
DBG(("failure.\n"));
return -1;
}
inbyte = inb(port + DSP_READ);
DBG(("read [0x%x]/{%c}.\n", inbyte, inbyte));
return inbyte;
}
static int __init aedsp16_test_dsp(int port)
{
return ((aedsp16_read(port) == 0xaa) ? TRUE : FALSE);
}
static int __init aedsp16_dsp_reset(int port)
{
/*
* Reset DSP
*/
DBG(("Reset DSP:\n"));
outb(1, (port + DSP_RESET));
udelay(10);
outb(0, (port + DSP_RESET));
udelay(10);
udelay(10);
if (aedsp16_test_dsp(port) == TRUE) {
DBG(("success.\n"));
return TRUE;
} else
DBG(("failure.\n"));
return FALSE;
}
static int __init aedsp16_write(int port, int cmd)
{
unsigned char ret;
int loop = HARDRETRY;
DBG((" Write DSP Byte (0x%x) [0x%x]: ", port, cmd));
do {
ret = inb(port + DSP_STATUS);
/*
* DSP ready to receive data if bit 7 of ret == 0
*/
if (!(ret & 0x80)) {
outb(cmd, port + DSP_COMMAND);
DBG(("success.\n"));
return 0;
}
} while (loop--);
DBG(("timeout.\n"));
printk("[AEDSP16] DSP Command (0x%x) timeout.\n", cmd);
return -1;
}
#if defined(CONFIG_SC6600)
#if defined(AEDSP16_INFO) || defined(AEDSP16_DEBUG)
void __init aedsp16_pinfo(void) {
DBG(("\n Base address: %x\n", decoded_hcfg.iobase));
DBG((" Joystick : %s present\n", decoded_hcfg.joystick?"":" not"));
DBG((" WSS addr : %x\n", decoded_hcfg.wssbase));
DBG((" MPU-401 addr: %x\n", decoded_hcfg.mpubase));
DBG((" CDROM : %s present\n", (decoded_hcfg.cdrom!=4)?"":" not"));
DBG((" CDROMADDR : %x\n\n", decoded_hcfg.cdrombase));
}
#endif
static void __init aedsp16_hard_decode(void) {
DBG((" aedsp16_hard_decode: 0x%x, 0x%x\n", hard_cfg[0], hard_cfg[1]));
/*
* Decode Cfg Bytes.
*/
decoded_hcfg.iobase = IOBASE(hard_cfg[0]);
decoded_hcfg.joystick = JOY(hard_cfg[0]);
decoded_hcfg.wssbase = WSSADDR(hard_cfg[0]);
decoded_hcfg.mpubase = MPUADDR(hard_cfg[0]);
decoded_hcfg.cdrom = CDROM(hard_cfg[1]);
decoded_hcfg.cdrombase = CDROMADDR(hard_cfg[1]);
#if defined(AEDSP16_INFO) || defined(AEDSP16_DEBUG)
printk(" Original sound card configuration:\n");
aedsp16_pinfo();
#endif
/*
* Now set up the real kernel configuration.
*/
decoded_hcfg.iobase = ae_config.base_io;
decoded_hcfg.wssbase = ae_config.mss_base;
decoded_hcfg.mpubase = ae_config.mpu_base;
#if defined(CONFIG_SC6600_JOY)
decoded_hcfg.joystick = CONFIG_SC6600_JOY; /* Enable */
#endif
#if defined(CONFIG_SC6600_CDROM)
decoded_hcfg.cdrom = CONFIG_SC6600_CDROM; /* 4:N-3:I-2:G-1:P-0:S */
#endif
#if defined(CONFIG_SC6600_CDROMBASE)
decoded_hcfg.cdrombase = CONFIG_SC6600_CDROMBASE; /* 0 Disable */
#endif
#if defined(AEDSP16_DEBUG)
DBG((" New Values:\n"));
aedsp16_pinfo();
#endif
DBG(("success.\n"));
}
static void __init aedsp16_hard_encode(void) {
DBG((" aedsp16_hard_encode: 0x%x, 0x%x\n", hard_cfg[0], hard_cfg[1]));
hard_cfg[0] = 0;
hard_cfg[1] = 0;
hard_cfg[0] |= 0x20;
BLDIOBASE (hard_cfg[0], decoded_hcfg.iobase);
BLDWSSADDR(hard_cfg[0], decoded_hcfg.wssbase);
BLDMPUADDR(hard_cfg[0], decoded_hcfg.mpubase);
BLDJOY(hard_cfg[0], decoded_hcfg.joystick);
BLDCDROM(hard_cfg[1], decoded_hcfg.cdrom);
BLDCDROMADDR(hard_cfg[1], decoded_hcfg.cdrombase);
#if defined(AEDSP16_DEBUG)
aedsp16_pinfo();
#endif
DBG((" aedsp16_hard_encode: 0x%x, 0x%x\n", hard_cfg[0], hard_cfg[1]));
DBG(("success.\n"));
}
static int __init aedsp16_hard_write(int port) {
DBG(("aedsp16_hard_write:\n"));
if (aedsp16_write(port, COMMAND_6C)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_6C);
DBG(("failure.\n"));
return FALSE;
}
if (aedsp16_write(port, COMMAND_5C)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_5C);
DBG(("failure.\n"));
return FALSE;
}
if (aedsp16_write(port, hard_cfg[0])) {
printk("[AEDSP16] DATA 0x%x: failed!\n", hard_cfg[0]);
DBG(("failure.\n"));
return FALSE;
}
if (aedsp16_write(port, hard_cfg[1])) {
printk("[AEDSP16] DATA 0x%x: failed!\n", hard_cfg[1]);
DBG(("failure.\n"));
return FALSE;
}
if (aedsp16_write(port, COMMAND_C5)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_C5);
DBG(("failure.\n"));
return FALSE;
}
DBG(("success.\n"));
return TRUE;
}
static int __init aedsp16_hard_read(int port) {
DBG(("aedsp16_hard_read:\n"));
if (aedsp16_write(port, READ_HARD_CFG)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", READ_HARD_CFG);
DBG(("failure.\n"));
return FALSE;
}
if ((hard_cfg[0] = aedsp16_read(port)) == -1) {
printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n",
READ_HARD_CFG);
DBG(("failure.\n"));
return FALSE;
}
if ((hard_cfg[1] = aedsp16_read(port)) == -1) {
printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n",
READ_HARD_CFG);
DBG(("failure.\n"));
return FALSE;
}
if (aedsp16_read(port) == -1) {
printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n",
READ_HARD_CFG);
DBG(("failure.\n"));
return FALSE;
}
DBG(("success.\n"));
return TRUE;
}
static int __init aedsp16_ext_cfg_write(int port) {
int extcfg, val;
if (aedsp16_write(port, COMMAND_66)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_66);
return FALSE;
}
extcfg = 7;
if (decoded_hcfg.cdrom != 2)
extcfg = 0x0F;
if ((decoded_hcfg.cdrom == 4) ||
(decoded_hcfg.cdrom == 3))
extcfg &= ~2;
if (decoded_hcfg.cdrombase == 0)
extcfg &= ~2;
if (decoded_hcfg.mpubase == 0)
extcfg &= ~1;
if (aedsp16_write(port, extcfg)) {
printk("[AEDSP16] Write extcfg: failed!\n");
return FALSE;
}
if (aedsp16_write(port, 0)) {
printk("[AEDSP16] Write extcfg: failed!\n");
return FALSE;
}
if (decoded_hcfg.cdrom == 3) {
if (aedsp16_write(port, COMMAND_52)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_52);
return FALSE;
}
if ((val = aedsp16_read(port)) == -1) {
printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n"
, COMMAND_52);
return FALSE;
}
val &= 0x7F;
if (aedsp16_write(port, COMMAND_60)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_60);
return FALSE;
}
if (aedsp16_write(port, val)) {
printk("[AEDSP16] Write val: failed!\n");
return FALSE;
}
}
return TRUE;
}
#endif /* CONFIG_SC6600 */
static int __init aedsp16_cfg_write(int port) {
if (aedsp16_write(port, WRITE_MDIRQ_CFG)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
return FALSE;
}
if (aedsp16_write(port, soft_cfg)) {
printk("[AEDSP16] Initialization of (M)IRQ and DMA: failed!\n");
return FALSE;
}
return TRUE;
}
static int __init aedsp16_init_mss(int port)
{
DBG(("aedsp16_init_mss:\n"));
mdelay(10);
if (aedsp16_write(port, DSP_INIT_MSS)) {
printk("[AEDSP16] aedsp16_init_mss [0x%x]: failed!\n",
DSP_INIT_MSS);
DBG(("failure.\n"));
return FALSE;
}
mdelay(10);
if (aedsp16_cfg_write(port) == FALSE)
return FALSE;
outb(soft_cfg_mss, ae_config.mss_base);
DBG(("success.\n"));
return TRUE;
}
static int __init aedsp16_setup_board(int port) {
int loop = RETRY;
#if defined(CONFIG_SC6600)
int val = 0;
if (aedsp16_hard_read(port) == FALSE) {
printk("[AEDSP16] aedsp16_hard_read: failed!\n");
return FALSE;
}
if (aedsp16_write(port, COMMAND_52)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_52);
return FALSE;
}
if ((val = aedsp16_read(port)) == -1) {
printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n",
COMMAND_52);
return FALSE;
}
#endif
do {
if (aedsp16_write(port, COMMAND_88)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_88);
return FALSE;
}
mdelay(10);
} while ((aedsp16_wait_data(port) == FALSE) && loop--);
if (aedsp16_read(port) == -1) {
printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n",
COMMAND_88);
return FALSE;
}
#if !defined(CONFIG_SC6600)
if (aedsp16_write(port, COMMAND_5C)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_5C);
return FALSE;
}
#endif
if (aedsp16_cfg_write(port) == FALSE)
return FALSE;
#if defined(CONFIG_SC6600)
if (aedsp16_write(port, COMMAND_60)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_60);
return FALSE;
}
if (aedsp16_write(port, val)) {
printk("[AEDSP16] DATA 0x%x: failed!\n", val);
return FALSE;
}
if (aedsp16_write(port, COMMAND_6E)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_6E);
return FALSE;
}
if (aedsp16_write(port, ver[0])) {
printk("[AEDSP16] DATA 0x%x: failed!\n", ver[0]);
return FALSE;
}
if (aedsp16_write(port, ver[1])) {
printk("[AEDSP16] DATA 0x%x: failed!\n", ver[1]);
return FALSE;
}
if (aedsp16_hard_write(port) == FALSE) {
printk("[AEDSP16] aedsp16_hard_write: failed!\n");
return FALSE;
}
if (aedsp16_write(port, COMMAND_5C)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_5C);
return FALSE;
}
#if defined(THIS_IS_A_THING_I_HAVE_NOT_TESTED_YET)
if (aedsp16_cfg_write(port) == FALSE)
return FALSE;
#endif
#endif
return TRUE;
}
static int __init aedsp16_stdcfg(int port) {
if (aedsp16_write(port, WRITE_MDIRQ_CFG)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
return FALSE;
}
/*
* 0x0A == (IRQ 7, DMA 1, MIRQ 0)
*/
if (aedsp16_write(port, 0x0A)) {
printk("[AEDSP16] aedsp16_stdcfg: failed!\n");
return FALSE;
}
return TRUE;
}
static int __init aedsp16_dsp_version(int port)
{
int len = 0;
int ret;
DBG(("Get DSP Version:\n"));
if (aedsp16_write(ae_config.base_io, GET_DSP_VERSION)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", GET_DSP_VERSION);
DBG(("failed.\n"));
return FALSE;
}
do {
if ((ret = aedsp16_read(port)) == -1) {
DBG(("failed.\n"));
return FALSE;
}
/*
* We already know how many int are stored (2), so we know when the
* string is finished.
*/
ver[len++] = ret;
} while (len < CARDVERDIGITS);
sprintf(DSPVersion, "%d.%d", ver[0], ver[1]);
DBG(("success.\n"));
return TRUE;
}
static int __init aedsp16_dsp_copyright(int port)
{
int len = 0;
int ret;
DBG(("Get DSP Copyright:\n"));
if (aedsp16_write(ae_config.base_io, GET_DSP_COPYRIGHT)) {
printk("[AEDSP16] CMD 0x%x: failed!\n", GET_DSP_COPYRIGHT);
DBG(("failed.\n"));
return FALSE;
}
do {
if ((ret = aedsp16_read(port)) == -1) {
/*
* If no more data available, return to the caller, no error if len>0.
* We have no other way to know when the string is finished.
*/
if (len)
break;
else {
DBG(("failed.\n"));
return FALSE;
}
}
DSPCopyright[len++] = ret;
} while (len < CARDNAMELEN);
DBG(("success.\n"));
return TRUE;
}
static void __init aedsp16_init_tables(void)
{
int i = 0;
memset(DSPCopyright, 0, CARDNAMELEN + 1);
memset(DSPVersion, 0, CARDVERLEN + 1);
for (i = 0; orIRQ[i].or; i++)
if (orIRQ[i].val == ae_config.irq) {
soft_cfg |= orIRQ[i].or;
soft_cfg_mss |= orIRQ[i].or;
}
for (i = 0; orMIRQ[i].or; i++)
if (orMIRQ[i].or == ae_config.mpu_irq)
soft_cfg |= orMIRQ[i].or;
for (i = 0; orDMA[i].or; i++)
if (orDMA[i].val == ae_config.dma) {
soft_cfg |= orDMA[i].or;
soft_cfg_mss |= orDMA[i].or;
}
}
static int __init aedsp16_init_board(void)
{
aedsp16_init_tables();
if (aedsp16_dsp_reset(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_dsp_reset: failed!\n");
return FALSE;
}
if (aedsp16_dsp_copyright(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_dsp_copyright: failed!\n");
return FALSE;
}
/*
* My AEDSP16 card return SC-6000 in DSPCopyright, so
* if we have something different, we have to be warned.
*/
if (strcmp("SC-6000", DSPCopyright))
printk("[AEDSP16] Warning: non SC-6000 audio card!\n");
if (aedsp16_dsp_version(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_dsp_version: failed!\n");
return FALSE;
}
if (aedsp16_stdcfg(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_stdcfg: failed!\n");
return FALSE;
}
#if defined(CONFIG_SC6600)
if (aedsp16_hard_read(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_hard_read: failed!\n");
return FALSE;
}
aedsp16_hard_decode();
aedsp16_hard_encode();
if (aedsp16_hard_write(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_hard_write: failed!\n");
return FALSE;
}
if (aedsp16_ext_cfg_write(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_ext_cfg_write: failed!\n");
return FALSE;
}
#endif /* CONFIG_SC6600 */
if (aedsp16_setup_board(ae_config.base_io) == FALSE) {
printk("[AEDSP16] aedsp16_setup_board: failed!\n");
return FALSE;
}
if (ae_config.mss_base != -1) {
if (ae_config.init & INIT_MSS) {
if (aedsp16_init_mss(ae_config.base_io) == FALSE) {
printk("[AEDSP16] Can not initialize"
"Microsoft Sound System mode.\n");
return FALSE;
}
}
}
#if !defined(MODULE) || defined(AEDSP16_INFO) || defined(AEDSP16_DEBUG)
printk("Audio Excel DSP 16 init v%s (%s %s) [",
VERSION, DSPCopyright,
DSPVersion);
if (ae_config.mpu_base != -1) {
if (ae_config.init & INIT_MPU401) {
printk("MPU401");
if ((ae_config.init & INIT_MSS) ||
(ae_config.init & INIT_SBPRO))
printk(" ");
}
}
if (ae_config.mss_base == -1) {
if (ae_config.init & INIT_SBPRO) {
printk("SBPro");
if (ae_config.init & INIT_MSS)
printk(" ");
}
}
if (ae_config.mss_base != -1)
if (ae_config.init & INIT_MSS)
printk("MSS");
printk("]\n");
#endif /* MODULE || AEDSP16_INFO || AEDSP16_DEBUG */
mdelay(10);
return TRUE;
}
static int __init init_aedsp16_sb(void)
{
DBG(("init_aedsp16_sb: "));
/*
* If the card is already init'ed MSS, we can not init it to SBPRO too
* because the board can not emulate simultaneously MSS and SBPRO.
*/
if (ae_config.init & INIT_MSS)
return FALSE;
if (ae_config.init & INIT_SBPRO)
return FALSE;
ae_config.init |= INIT_SBPRO;
DBG(("done.\n"));
return TRUE;
}
static void uninit_aedsp16_sb(void)
{
DBG(("uninit_aedsp16_sb: "));
ae_config.init &= ~INIT_SBPRO;
DBG(("done.\n"));
}
static int __init init_aedsp16_mss(void)
{
DBG(("init_aedsp16_mss: "));
/*
* If the card is already init'ed SBPRO, we can not init it to MSS too
* because the board can not emulate simultaneously MSS and SBPRO.
*/
if (ae_config.init & INIT_SBPRO)
return FALSE;
if (ae_config.init & INIT_MSS)
return FALSE;
/*
* We must allocate the CONFIG_AEDSP16_BASE region too because these are the
* I/O ports to access card's control registers.
*/
if (!(ae_config.init & INIT_MPU401)) {
if (!request_region(ae_config.base_io, IOBASE_REGION_SIZE,
"aedsp16 (base)")) {
printk(
"AEDSP16 BASE I/O port region is already in use.\n");
return FALSE;
}
}
ae_config.init |= INIT_MSS;
DBG(("done.\n"));
return TRUE;
}
static void uninit_aedsp16_mss(void)
{
DBG(("uninit_aedsp16_mss: "));
if ((!(ae_config.init & INIT_MPU401)) &&
(ae_config.init & INIT_MSS)) {
release_region(ae_config.base_io, IOBASE_REGION_SIZE);
DBG(("AEDSP16 base region released.\n"));
}
ae_config.init &= ~INIT_MSS;
DBG(("done.\n"));
}
static int __init init_aedsp16_mpu(void)
{
DBG(("init_aedsp16_mpu: "));
if (ae_config.init & INIT_MPU401)
return FALSE;
/*
* We must request the CONFIG_AEDSP16_BASE region too because these are the I/O
* ports to access card's control registers.
*/
if (!(ae_config.init & (INIT_MSS | INIT_SBPRO))) {
if (!request_region(ae_config.base_io, IOBASE_REGION_SIZE,
"aedsp16 (base)")) {
printk(
"AEDSP16 BASE I/O port region is already in use.\n");
return FALSE;
}
}
ae_config.init |= INIT_MPU401;
DBG(("done.\n"));
return TRUE;
}
static void uninit_aedsp16_mpu(void)
{
DBG(("uninit_aedsp16_mpu: "));
if ((!(ae_config.init & (INIT_MSS | INIT_SBPRO))) &&
(ae_config.init & INIT_MPU401)) {
release_region(ae_config.base_io, IOBASE_REGION_SIZE);
DBG(("AEDSP16 base region released.\n"));
}
ae_config.init &= ~INIT_MPU401;
DBG(("done.\n"));
}
static int __init init_aedsp16(void)
{
int initialized = FALSE;
DBG(("Initializing BASE[0x%x] IRQ[%d] DMA[%d] MIRQ[%d]\n",
ae_config.base_io,ae_config.irq,ae_config.dma,ae_config.mpu_irq));
if (ae_config.mss_base == -1) {
if (init_aedsp16_sb() == FALSE) {
uninit_aedsp16_sb();
} else {
initialized = TRUE;
}
}
if (ae_config.mpu_base != -1) {
if (init_aedsp16_mpu() == FALSE) {
uninit_aedsp16_mpu();
} else {
initialized = TRUE;
}
}
/*
* In the sequence of init routines, the MSS init MUST be the last!
* This because of the special register programming the MSS mode needs.
* A board reset would disable the MSS mode restoring the default SBPRO
* mode.
*/
if (ae_config.mss_base != -1) {
if (init_aedsp16_mss() == FALSE) {
uninit_aedsp16_mss();
} else {
initialized = TRUE;
}
}
if (initialized)
initialized = aedsp16_init_board();
return initialized;
}
static void __exit uninit_aedsp16(void)
{
if (ae_config.mss_base != -1)
uninit_aedsp16_mss();
else
uninit_aedsp16_sb();
if (ae_config.mpu_base != -1)
uninit_aedsp16_mpu();
}
static int __initdata io = -1;
static int __initdata irq = -1;
static int __initdata dma = -1;
static int __initdata mpu_irq = -1;
static int __initdata mss_base = -1;
static int __initdata mpu_base = -1;
module_param_hw(io, int, ioport, 0);
MODULE_PARM_DESC(io, "I/O base address (0x220 0x240)");
module_param_hw(irq, int, irq, 0);
MODULE_PARM_DESC(irq, "IRQ line (5 7 9 10 11)");
module_param_hw(dma, int, dma, 0);
MODULE_PARM_DESC(dma, "dma line (0 1 3)");
module_param_hw(mpu_irq, int, irq, 0);
MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ line (5 7 9 10 0)");
module_param_hw(mss_base, int, ioport, 0);
MODULE_PARM_DESC(mss_base, "MSS emulation I/O base address (0x530 0xE80)");
module_param_hw(mpu_base, int, ioport, 0);
MODULE_PARM_DESC(mpu_base,"MPU-401 I/O base address (0x300 0x310 0x320 0x330)");
MODULE_AUTHOR("Riccardo Facchetti <fizban@tin.it>");
MODULE_DESCRIPTION("Audio Excel DSP 16 Driver Version " VERSION);
MODULE_LICENSE("GPL");
static int __init do_init_aedsp16(void) {
printk("Audio Excel DSP 16 init driver Copyright (C) Riccardo Facchetti 1995-98\n");
if (io == -1 || dma == -1 || irq == -1) {
printk(KERN_INFO "aedsp16: I/O, IRQ and DMA are mandatory\n");
return -EINVAL;
}
ae_config.base_io = io;
ae_config.irq = irq;
ae_config.dma = dma;
ae_config.mss_base = mss_base;
ae_config.mpu_base = mpu_base;
ae_config.mpu_irq = mpu_irq;
if (init_aedsp16() == FALSE) {
printk(KERN_ERR "aedsp16: initialization failed\n");
/*
* XXX
* What error should we return here ?
*/
return -EINVAL;
}
return 0;
}
static void __exit cleanup_aedsp16(void) {
uninit_aedsp16();
}
module_init(do_init_aedsp16);
module_exit(cleanup_aedsp16);
#ifndef MODULE
static int __init setup_aedsp16(char *str)
{
/* io, irq, dma, mss_io, mpu_io, mpu_irq */
int ints[7];
str = get_options(str, ARRAY_SIZE(ints), ints);
io = ints[1];
irq = ints[2];
dma = ints[3];
mss_base = ints[4];
mpu_base = ints[5];
mpu_irq = ints[6];
return 1;
}
__setup("aedsp16=", setup_aedsp16);
#endif
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