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linux/sound/oss/sb_ess.c
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

1824 lines
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// SPDX-License-Identifier: GPL-2.0
#undef FKS_LOGGING
#undef FKS_TEST
/*
* tabs should be 4 spaces, in vi(m): set tabstop=4
*
* TODO: consistency speed calculations!!
* cleanup!
* ????: Did I break MIDI support?
*
* History:
*
* Rolf Fokkens (Dec 20 1998): ES188x recording level support on a per
* fokkensr@vertis.nl input basis.
* (Dec 24 1998): Recognition of ES1788, ES1887, ES1888,
* ES1868, ES1869 and ES1878. Could be used for
* specific handling in the future. All except
* ES1887 and ES1888 and ES688 are handled like
* ES1688.
* (Dec 27 1998): RECLEV for all (?) ES1688+ chips. ES188x now
* have the "Dec 20" support + RECLEV
* (Jan 2 1999): Preparation for Full Duplex. This means
* Audio 2 is now used for playback when dma16
* is specified. The next step would be to use
* Audio 1 and Audio 2 at the same time.
* (Jan 9 1999): Put all ESS stuff into sb_ess.[ch], this
* includes both the ESS stuff that has been in
* sb_*[ch] before I touched it and the ESS support
* I added later
* (Jan 23 1999): Full Duplex seems to work. I wrote a small
* test proggy which works OK. Haven't found
* any applications to test it though. So why did
* I bother to create it anyway?? :) Just for
* fun.
* (May 2 1999): I tried to be too smart by "introducing"
* ess_calc_best_speed (). The idea was that two
* dividers could be used to setup a samplerate,
* ess_calc_best_speed () would choose the best.
* This works for playback, but results in
* recording problems for high samplerates. I
* fixed this by removing ess_calc_best_speed ()
* and just doing what the documentation says.
* Andy Sloane (Jun 4 1999): Stole some code from ALSA to fix the playback
* andy@guildsoftware.com speed on ES1869, ES1879, ES1887, and ES1888.
* 1879's were previously ignored by this driver;
* added (untested) support for those.
* Cvetan Ivanov (Oct 27 1999): Fixed ess_dsp_init to call ess_set_dma_hw for
* zezo@inet.bg _ALL_ ESS models, not only ES1887
*
* This files contains ESS chip specifics. It's based on the existing ESS
* handling as it resided in sb_common.c, sb_mixer.c and sb_audio.c. This
* file adds features like:
* - Chip Identification (as shown in /proc/sound)
* - RECLEV support for ES1688 and later
* - 6 bits playback level support chips later than ES1688
* - Recording level support on a per-device basis for ES1887
* - Full-Duplex for ES1887
*
* Full duplex is enabled by specifying dma16. While the normal dma must
* be one of 0, 1 or 3, dma16 can be one of 0, 1, 3 or 5. DMA 5 is a 16 bit
* DMA channel, while the others are 8 bit..
*
* ESS detection isn't full proof (yet). If it fails an additional module
* parameter esstype can be specified to be one of the following:
* -1, 0, 688, 1688, 1868, 1869, 1788, 1887, 1888
* -1 means: mimic 2.0 behaviour,
* 0 means: auto detect.
* others: explicitly specify chip
* -1 is default, cause auto detect still doesn't work.
*/
/*
* About the documentation
*
* I don't know if the chips all are OK, but the documentation is buggy. 'cause
* I don't have all the cips myself, there's a lot I cannot verify. I'll try to
* keep track of my latest insights about his here. If you have additional info,
* please enlighten me (fokkensr@vertis.nl)!
*
* I had the impression that ES1688 also has 6 bit master volume control. The
* documentation about ES1888 (rev C, october '95) claims that ES1888 has
* the following features ES1688 doesn't have:
* - 6 bit master volume
* - Full Duplex
* So ES1688 apparently doesn't have 6 bit master volume control, but the
* ES1688 does have RECLEV control. Makes me wonder: does ES688 have it too?
* Without RECLEV ES688 won't be much fun I guess.
*
* From the ES1888 (rev C, october '95) documentation I got the impression
* that registers 0x68 to 0x6e don't exist which means: no recording volume
* controls. To my surprise the ES888 documentation (1/14/96) claims that
* ES888 does have these record mixer registers, but that ES1888 doesn't have
* 0x69 and 0x6b. So the rest should be there.
*
* I'm trying to get ES1887 Full Duplex. Audio 2 is playback only, while Audio 2
* is both record and playback. I think I should use Audio 2 for all playback.
*
* The documentation is an adventure: it's close but not fully accurate. I
* found out that after a reset some registers are *NOT* reset, though the
* docs say the would be. Interesting ones are 0x7f, 0x7d and 0x7a. They are
* related to the Audio 2 channel. I also was surprised about the consequences
* of writing 0x00 to 0x7f (which should be done by reset): The ES1887 moves
* into ES1888 mode. This means that it claims IRQ 11, which happens to be my
* ISDN adapter. Needless to say it no longer worked. I now understand why
* after rebooting 0x7f already was 0x05, the value of my choice: the BIOS
* did it.
*
* Oh, and this is another trap: in ES1887 docs mixer register 0x70 is
* described as if it's exactly the same as register 0xa1. This is *NOT* true.
* The description of 0x70 in ES1869 docs is accurate however.
* Well, the assumption about ES1869 was wrong: register 0x70 is very much
* like register 0xa1, except that bit 7 is always 1, whatever you want
* it to be.
*
* When using audio 2 mixer register 0x72 seems te be meaningless. Only 0xa2
* has effect.
*
* Software reset not being able to reset all registers is great! Especially
* the fact that register 0x78 isn't reset is great when you wanna change back
* to single dma operation (simplex): audio 2 is still operational, and uses
* the same dma as audio 1: your ess changes into a funny echo machine.
*
* Received the news that ES1688 is detected as a ES1788. Did some thinking:
* the ES1887 detection scheme suggests in step 2 to try if bit 3 of register
* 0x64 can be changed. This is inaccurate, first I inverted the * check: "If
* can be modified, it's a 1688", which lead to a correct detection
* of my ES1887. It resulted however in bad detection of 1688 (reported by mail)
* and 1868 (if no PnP detection first): they result in a 1788 being detected.
* I don't have docs on 1688, but I do have docs on 1868: The documentation is
* probably inaccurate in the fact that I should check bit 2, not bit 3. This
* is what I do now.
*/
/*
* About recognition of ESS chips
*
* The distinction of ES688, ES1688, ES1788, ES1887 and ES1888 is described in
* a (preliminary ??) datasheet on ES1887. Its aim is to identify ES1887, but
* during detection the text claims that "this chip may be ..." when a step
* fails. This scheme is used to distinct between the above chips.
* It appears however that some PnP chips like ES1868 are recognized as ES1788
* by the ES1887 detection scheme. These PnP chips can be detected in another
* way however: ES1868, ES1869 and ES1878 can be recognized (full proof I think)
* by repeatedly reading mixer register 0x40. This is done by ess_identify in
* sb_common.c.
* This results in the following detection steps:
* - distinct between ES688 and ES1688+ (as always done in this driver)
* if ES688 we're ready
* - try to detect ES1868, ES1869 or ES1878
* if successful we're ready
* - try to detect ES1888, ES1887 or ES1788
* if successful we're ready
* - Dunno. Must be 1688. Will do in general
*
* About RECLEV support:
*
* The existing ES1688 support didn't take care of the ES1688+ recording
* levels very well. Whenever a device was selected (recmask) for recording
* its recording level was loud, and it couldn't be changed. The fact that
* internal register 0xb4 could take care of RECLEV, didn't work meaning until
* its value was restored every time the chip was reset; this reset the
* value of 0xb4 too. I guess that's what 4front also had (have?) trouble with.
*
* About ES1887 support:
*
* The ES1887 has separate registers to control the recording levels, for all
* inputs. The ES1887 specific software makes these levels the same as their
* corresponding playback levels, unless recmask says they aren't recorded. In
* the latter case the recording volumes are 0.
* Now recording levels of inputs can be controlled, by changing the playback
* levels. Furthermore several devices can be recorded together (which is not
* possible with the ES1688).
* Besides the separate recording level control for each input, the common
* recording level can also be controlled by RECLEV as described above.
*
* Not only ES1887 have this recording mixer. I know the following from the
* documentation:
* ES688 no
* ES1688 no
* ES1868 no
* ES1869 yes
* ES1878 no
* ES1879 yes
* ES1888 no/yes Contradicting documentation; most recent: yes
* ES1946 yes This is a PCI chip; not handled by this driver
*/
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include "sound_config.h"
#include "sb_mixer.h"
#include "sb.h"
#include "sb_ess.h"
#define ESSTYPE_LIKE20 -1 /* Mimic 2.0 behaviour */
#define ESSTYPE_DETECT 0 /* Mimic 2.0 behaviour */
#define SUBMDL_ES1788 0x10 /* Subtype ES1788 for specific handling */
#define SUBMDL_ES1868 0x11 /* Subtype ES1868 for specific handling */
#define SUBMDL_ES1869 0x12 /* Subtype ES1869 for specific handling */
#define SUBMDL_ES1878 0x13 /* Subtype ES1878 for specific handling */
#define SUBMDL_ES1879 0x16 /* ES1879 was initially forgotten */
#define SUBMDL_ES1887 0x14 /* Subtype ES1887 for specific handling */
#define SUBMDL_ES1888 0x15 /* Subtype ES1888 for specific handling */
#define SB_CAP_ES18XX_RATE 0x100
#define ES1688_CLOCK1 795444 /* 128 - div */
#define ES1688_CLOCK2 397722 /* 256 - div */
#define ES18XX_CLOCK1 793800 /* 128 - div */
#define ES18XX_CLOCK2 768000 /* 256 - div */
#ifdef FKS_LOGGING
static void ess_show_mixerregs (sb_devc *devc);
#endif
static int ess_read (sb_devc * devc, unsigned char reg);
static int ess_write (sb_devc * devc, unsigned char reg, unsigned char data);
static void ess_chgmixer
(sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val);
/****************************************************************************
* *
* ESS audio *
* *
****************************************************************************/
struct ess_command {short cmd; short data;};
/*
* Commands for initializing Audio 1 for input (record)
*/
static struct ess_command ess_i08m[] = /* input 8 bit mono */
{ {0xb7, 0x51}, {0xb7, 0xd0}, {-1, 0} };
static struct ess_command ess_i16m[] = /* input 16 bit mono */
{ {0xb7, 0x71}, {0xb7, 0xf4}, {-1, 0} };
static struct ess_command ess_i08s[] = /* input 8 bit stereo */
{ {0xb7, 0x51}, {0xb7, 0x98}, {-1, 0} };
static struct ess_command ess_i16s[] = /* input 16 bit stereo */
{ {0xb7, 0x71}, {0xb7, 0xbc}, {-1, 0} };
static struct ess_command *ess_inp_cmds[] =
{ ess_i08m, ess_i16m, ess_i08s, ess_i16s };
/*
* Commands for initializing Audio 1 for output (playback)
*/
static struct ess_command ess_o08m[] = /* output 8 bit mono */
{ {0xb6, 0x80}, {0xb7, 0x51}, {0xb7, 0xd0}, {-1, 0} };
static struct ess_command ess_o16m[] = /* output 16 bit mono */
{ {0xb6, 0x00}, {0xb7, 0x71}, {0xb7, 0xf4}, {-1, 0} };
static struct ess_command ess_o08s[] = /* output 8 bit stereo */
{ {0xb6, 0x80}, {0xb7, 0x51}, {0xb7, 0x98}, {-1, 0} };
static struct ess_command ess_o16s[] = /* output 16 bit stereo */
{ {0xb6, 0x00}, {0xb7, 0x71}, {0xb7, 0xbc}, {-1, 0} };
static struct ess_command *ess_out_cmds[] =
{ ess_o08m, ess_o16m, ess_o08s, ess_o16s };
static void ess_exec_commands
(sb_devc *devc, struct ess_command *cmdtab[])
{
struct ess_command *cmd;
cmd = cmdtab [ ((devc->channels != 1) << 1) + (devc->bits != AFMT_U8) ];
while (cmd->cmd != -1) {
ess_write (devc, cmd->cmd, cmd->data);
cmd++;
}
}
static void ess_change
(sb_devc *devc, unsigned int reg, unsigned int mask, unsigned int val)
{
int value;
value = ess_read (devc, reg);
value = (value & ~mask) | (val & mask);
ess_write (devc, reg, value);
}
static void ess_set_output_parms
(int dev, unsigned long buf, int nr_bytes, int intrflag)
{
sb_devc *devc = audio_devs[dev]->devc;
if (devc->duplex) {
devc->trg_buf_16 = buf;
devc->trg_bytes_16 = nr_bytes;
devc->trg_intrflag_16 = intrflag;
devc->irq_mode_16 = IMODE_OUTPUT;
} else {
devc->trg_buf = buf;
devc->trg_bytes = nr_bytes;
devc->trg_intrflag = intrflag;
devc->irq_mode = IMODE_OUTPUT;
}
}
static void ess_set_input_parms
(int dev, unsigned long buf, int count, int intrflag)
{
sb_devc *devc = audio_devs[dev]->devc;
devc->trg_buf = buf;
devc->trg_bytes = count;
devc->trg_intrflag = intrflag;
devc->irq_mode = IMODE_INPUT;
}
static int ess_calc_div (int clock, int revert, int *speedp, int *diffp)
{
int divider;
int speed, diff;
int retval;
speed = *speedp;
divider = (clock + speed / 2) / speed;
retval = revert - divider;
if (retval > revert - 1) {
retval = revert - 1;
divider = revert - retval;
}
/* This line is suggested. Must be wrong I think
*speedp = (clock + divider / 2) / divider;
So I chose the next one */
*speedp = clock / divider;
diff = speed - *speedp;
if (diff < 0) diff =-diff;
*diffp = diff;
return retval;
}
static int ess_calc_best_speed
(int clock1, int rev1, int clock2, int rev2, int *divp, int *speedp)
{
int speed1 = *speedp, speed2 = *speedp;
int div1, div2;
int diff1, diff2;
int retval;
div1 = ess_calc_div (clock1, rev1, &speed1, &diff1);
div2 = ess_calc_div (clock2, rev2, &speed2, &diff2);
if (diff1 < diff2) {
*divp = div1;
*speedp = speed1;
retval = 1;
} else {
/* *divp = div2; */
*divp = 0x80 | div2;
*speedp = speed2;
retval = 2;
}
return retval;
}
/*
* Depending on the audiochannel ESS devices can
* have different clock settings. These are made consistent for duplex
* however.
* callers of ess_speed only do an audionum suggestion, which means
* input suggests 1, output suggests 2. This suggestion is only true
* however when doing duplex.
*/
static void ess_common_speed (sb_devc *devc, int *speedp, int *divp)
{
int diff = 0, div;
if (devc->duplex) {
/*
* The 0x80 is important for the first audio channel
*/
if (devc->submodel == SUBMDL_ES1888) {
div = 0x80 | ess_calc_div (795500, 256, speedp, &diff);
} else {
div = 0x80 | ess_calc_div (795500, 128, speedp, &diff);
}
} else if(devc->caps & SB_CAP_ES18XX_RATE) {
if (devc->submodel == SUBMDL_ES1888) {
ess_calc_best_speed(397700, 128, 795500, 256,
&div, speedp);
} else {
ess_calc_best_speed(ES18XX_CLOCK1, 128, ES18XX_CLOCK2, 256,
&div, speedp);
}
} else {
if (*speedp > 22000) {
div = 0x80 | ess_calc_div (ES1688_CLOCK1, 256, speedp, &diff);
} else {
div = 0x00 | ess_calc_div (ES1688_CLOCK2, 128, speedp, &diff);
}
}
*divp = div;
}
static void ess_speed (sb_devc *devc, int audionum)
{
int speed;
int div, div2;
ess_common_speed (devc, &(devc->speed), &div);
#ifdef FKS_REG_LOGGING
printk (KERN_INFO "FKS: ess_speed (%d) b speed = %d, div=%x\n", audionum, devc->speed, div);
#endif
/* Set filter roll-off to 90% of speed/2 */
speed = (devc->speed * 9) / 20;
div2 = 256 - 7160000 / (speed * 82);
if (!devc->duplex) audionum = 1;
if (audionum == 1) {
/* Change behaviour of register A1 *
sb_chg_mixer(devc, 0x71, 0x20, 0x20)
* For ES1869 only??? */
ess_write (devc, 0xa1, div);
ess_write (devc, 0xa2, div2);
} else {
ess_setmixer (devc, 0x70, div);
/*
* FKS: fascinating: 0x72 doesn't seem to work.
*/
ess_write (devc, 0xa2, div2);
ess_setmixer (devc, 0x72, div2);
}
}
static int ess_audio_prepare_for_input(int dev, int bsize, int bcount)
{
sb_devc *devc = audio_devs[dev]->devc;
ess_speed(devc, 1);
sb_dsp_command(devc, DSP_CMD_SPKOFF);
ess_write (devc, 0xb8, 0x0e); /* Auto init DMA mode */
ess_change (devc, 0xa8, 0x03, 3 - devc->channels); /* Mono/stereo */
ess_write (devc, 0xb9, 2); /* Demand mode (4 bytes/DMA request) */
ess_exec_commands (devc, ess_inp_cmds);
ess_change (devc, 0xb1, 0xf0, 0x50);
ess_change (devc, 0xb2, 0xf0, 0x50);
devc->trigger_bits = 0;
return 0;
}
static int ess_audio_prepare_for_output_audio1 (int dev, int bsize, int bcount)
{
sb_devc *devc = audio_devs[dev]->devc;
sb_dsp_reset(devc);
ess_speed(devc, 1);
ess_write (devc, 0xb8, 4); /* Auto init DMA mode */
ess_change (devc, 0xa8, 0x03, 3 - devc->channels); /* Mono/stereo */
ess_write (devc, 0xb9, 2); /* Demand mode (4 bytes/request) */
ess_exec_commands (devc, ess_out_cmds);
ess_change (devc, 0xb1, 0xf0, 0x50); /* Enable DMA */
ess_change (devc, 0xb2, 0xf0, 0x50); /* Enable IRQ */
sb_dsp_command(devc, DSP_CMD_SPKON); /* There be sound! */
devc->trigger_bits = 0;
return 0;
}
static int ess_audio_prepare_for_output_audio2 (int dev, int bsize, int bcount)
{
sb_devc *devc = audio_devs[dev]->devc;
unsigned char bits;
/* FKS: qqq
sb_dsp_reset(devc);
*/
/*
* Auto-Initialize:
* DMA mode + demand mode (8 bytes/request, yes I want it all!)
* But leave 16-bit DMA bit untouched!
*/
ess_chgmixer (devc, 0x78, 0xd0, 0xd0);
ess_speed(devc, 2);
/* bits 4:3 on ES1887 represent recording source. Keep them! */
bits = ess_getmixer (devc, 0x7a) & 0x18;
/* Set stereo/mono */
if (devc->channels != 1) bits |= 0x02;
/* Init DACs; UNSIGNED mode for 8 bit; SIGNED mode for 16 bit */
if (devc->bits != AFMT_U8) bits |= 0x05; /* 16 bit */
/* Enable DMA, IRQ will be shared (hopefully)*/
bits |= 0x60;
ess_setmixer (devc, 0x7a, bits);
ess_mixer_reload (devc, SOUND_MIXER_PCM); /* There be sound! */
devc->trigger_bits = 0;
return 0;
}
static int ess_audio_prepare_for_output(int dev, int bsize, int bcount)
{
sb_devc *devc = audio_devs[dev]->devc;
#ifdef FKS_REG_LOGGING
printk(KERN_INFO "ess_audio_prepare_for_output: dma_out=%d,dma_in=%d\n"
, audio_devs[dev]->dmap_out->dma, audio_devs[dev]->dmap_in->dma);
#endif
if (devc->duplex) {
return ess_audio_prepare_for_output_audio2 (dev, bsize, bcount);
} else {
return ess_audio_prepare_for_output_audio1 (dev, bsize, bcount);
}
}
static void ess_audio_halt_xfer(int dev)
{
unsigned long flags;
sb_devc *devc = audio_devs[dev]->devc;
spin_lock_irqsave(&devc->lock, flags);
sb_dsp_reset(devc);
spin_unlock_irqrestore(&devc->lock, flags);
/*
* Audio 2 may still be operational! Creates awful sounds!
*/
if (devc->duplex) ess_chgmixer(devc, 0x78, 0x03, 0x00);
}
static void ess_audio_start_input
(int dev, unsigned long buf, int nr_bytes, int intrflag)
{
int count = nr_bytes;
sb_devc *devc = audio_devs[dev]->devc;
short c = -nr_bytes;
/*
* Start a DMA input to the buffer pointed by dmaqtail
*/
if (audio_devs[dev]->dmap_in->dma > 3) count >>= 1;
count--;
devc->irq_mode = IMODE_INPUT;
ess_write (devc, 0xa4, (unsigned char) ((unsigned short) c & 0xff));
ess_write (devc, 0xa5, (unsigned char) (((unsigned short) c >> 8) & 0xff));
ess_change (devc, 0xb8, 0x0f, 0x0f); /* Go */
devc->intr_active = 1;
}
static void ess_audio_output_block_audio1
(int dev, unsigned long buf, int nr_bytes, int intrflag)
{
int count = nr_bytes;
sb_devc *devc = audio_devs[dev]->devc;
short c = -nr_bytes;
if (audio_devs[dev]->dmap_out->dma > 3)
count >>= 1;
count--;
devc->irq_mode = IMODE_OUTPUT;
ess_write (devc, 0xa4, (unsigned char) ((unsigned short) c & 0xff));
ess_write (devc, 0xa5, (unsigned char) (((unsigned short) c >> 8) & 0xff));
ess_change (devc, 0xb8, 0x05, 0x05); /* Go */
devc->intr_active = 1;
}
static void ess_audio_output_block_audio2
(int dev, unsigned long buf, int nr_bytes, int intrflag)
{
int count = nr_bytes;
sb_devc *devc = audio_devs[dev]->devc;
short c = -nr_bytes;
if (audio_devs[dev]->dmap_out->dma > 3) count >>= 1;
count--;
ess_setmixer (devc, 0x74, (unsigned char) ((unsigned short) c & 0xff));
ess_setmixer (devc, 0x76, (unsigned char) (((unsigned short) c >> 8) & 0xff));
ess_chgmixer (devc, 0x78, 0x03, 0x03); /* Go */
devc->irq_mode_16 = IMODE_OUTPUT;
devc->intr_active_16 = 1;
}
static void ess_audio_output_block
(int dev, unsigned long buf, int nr_bytes, int intrflag)
{
sb_devc *devc = audio_devs[dev]->devc;
if (devc->duplex) {
ess_audio_output_block_audio2 (dev, buf, nr_bytes, intrflag);
} else {
ess_audio_output_block_audio1 (dev, buf, nr_bytes, intrflag);
}
}
/*
* FKS: the if-statements for both bits and bits_16 are quite alike.
* Combine this...
*/
static void ess_audio_trigger(int dev, int bits)
{
sb_devc *devc = audio_devs[dev]->devc;
int bits_16 = bits & devc->irq_mode_16;
bits &= devc->irq_mode;
if (!bits && !bits_16) {
/* FKS oh oh.... wrong?? for dma 16? */
sb_dsp_command(devc, 0xd0); /* Halt DMA */
}
if (bits) {
switch (devc->irq_mode)
{
case IMODE_INPUT:
ess_audio_start_input(dev, devc->trg_buf, devc->trg_bytes,
devc->trg_intrflag);
break;
case IMODE_OUTPUT:
ess_audio_output_block(dev, devc->trg_buf, devc->trg_bytes,
devc->trg_intrflag);
break;
}
}
if (bits_16) {
switch (devc->irq_mode_16) {
case IMODE_INPUT:
ess_audio_start_input(dev, devc->trg_buf_16, devc->trg_bytes_16,
devc->trg_intrflag_16);
break;
case IMODE_OUTPUT:
ess_audio_output_block(dev, devc->trg_buf_16, devc->trg_bytes_16,
devc->trg_intrflag_16);
break;
}
}
devc->trigger_bits = bits | bits_16;
}
static int ess_audio_set_speed(int dev, int speed)
{
sb_devc *devc = audio_devs[dev]->devc;
int minspeed, maxspeed, dummydiv;
if (speed > 0) {
minspeed = (devc->duplex ? 6215 : 5000 );
maxspeed = (devc->duplex ? 44100 : 48000);
if (speed < minspeed) speed = minspeed;
if (speed > maxspeed) speed = maxspeed;
ess_common_speed (devc, &speed, &dummydiv);
devc->speed = speed;
}
return devc->speed;
}
/*
* FKS: This is a one-on-one copy of sb1_audio_set_bits
*/
static unsigned int ess_audio_set_bits(int dev, unsigned int bits)
{
sb_devc *devc = audio_devs[dev]->devc;
if (bits != 0) {
if (bits == AFMT_U8 || bits == AFMT_S16_LE) {
devc->bits = bits;
} else {
devc->bits = AFMT_U8;
}
}
return devc->bits;
}
/*
* FKS: This is a one-on-one copy of sbpro_audio_set_channels
* (*) Modified it!!
*/
static short ess_audio_set_channels(int dev, short channels)
{
sb_devc *devc = audio_devs[dev]->devc;
if (channels == 1 || channels == 2) devc->channels = channels;
return devc->channels;
}
static struct audio_driver ess_audio_driver = /* ESS ES688/1688 */
{
.owner = THIS_MODULE,
.open = sb_audio_open,
.close = sb_audio_close,
.output_block = ess_set_output_parms,
.start_input = ess_set_input_parms,
.prepare_for_input = ess_audio_prepare_for_input,
.prepare_for_output = ess_audio_prepare_for_output,
.halt_io = ess_audio_halt_xfer,
.trigger = ess_audio_trigger,
.set_speed = ess_audio_set_speed,
.set_bits = ess_audio_set_bits,
.set_channels = ess_audio_set_channels
};
/*
* ess_audio_init must be called from sb_audio_init
*/
struct audio_driver *ess_audio_init
(sb_devc *devc, int *audio_flags, int *format_mask)
{
*audio_flags = DMA_AUTOMODE;
*format_mask |= AFMT_S16_LE;
if (devc->duplex) {
int tmp_dma;
/*
* sb_audio_init thinks dma8 is for playback and
* dma16 is for record. Not now! So swap them.
*/
tmp_dma = devc->dma16;
devc->dma16 = devc->dma8;
devc->dma8 = tmp_dma;
*audio_flags |= DMA_DUPLEX;
}
return &ess_audio_driver;
}
/****************************************************************************
* *
* ESS common *
* *
****************************************************************************/
static void ess_handle_channel
(char *channel, int dev, int intr_active, unsigned char flag, int irq_mode)
{
if (!intr_active || !flag) return;
#ifdef FKS_REG_LOGGING
printk(KERN_INFO "FKS: ess_handle_channel %s irq_mode=%d\n", channel, irq_mode);
#endif
switch (irq_mode) {
case IMODE_OUTPUT:
DMAbuf_outputintr (dev, 1);
break;
case IMODE_INPUT:
DMAbuf_inputintr (dev);
break;
case IMODE_INIT:
break;
default:;
/* printk(KERN_WARNING "ESS: Unexpected interrupt\n"); */
}
}
/*
* FKS: TODO!!! Finish this!
*
* I think midi stuff uses uart401, without interrupts.
* So IMODE_MIDI isn't a value for devc->irq_mode.
*/
void ess_intr (sb_devc *devc)
{
int status;
unsigned char src;
if (devc->submodel == SUBMDL_ES1887) {
src = ess_getmixer (devc, 0x7f) >> 4;
} else {
src = 0xff;
}
#ifdef FKS_REG_LOGGING
printk(KERN_INFO "FKS: sbintr src=%x\n",(int)src);
#endif
ess_handle_channel
( "Audio 1"
, devc->dev, devc->intr_active , src & 0x01, devc->irq_mode );
ess_handle_channel
( "Audio 2"
, devc->dev, devc->intr_active_16, src & 0x02, devc->irq_mode_16);
/*
* Acknowledge interrupts
*/
if (devc->submodel == SUBMDL_ES1887 && (src & 0x02)) {
ess_chgmixer (devc, 0x7a, 0x80, 0x00);
}
if (src & 0x01) {
status = inb(DSP_DATA_AVAIL);
}
}
static void ess_extended (sb_devc * devc)
{
/* Enable extended mode */
sb_dsp_command(devc, 0xc6);
}
static int ess_write (sb_devc * devc, unsigned char reg, unsigned char data)
{
#ifdef FKS_REG_LOGGING
printk(KERN_INFO "FKS: write reg %x: %x\n", reg, data);
#endif
/* Write a byte to an extended mode register of ES1688 */
if (!sb_dsp_command(devc, reg))
return 0;
return sb_dsp_command(devc, data);
}
static int ess_read (sb_devc * devc, unsigned char reg)
{
/* Read a byte from an extended mode register of ES1688 */
/* Read register command */
if (!sb_dsp_command(devc, 0xc0)) return -1;
if (!sb_dsp_command(devc, reg )) return -1;
return sb_dsp_get_byte(devc);
}
int ess_dsp_reset(sb_devc * devc)
{
int loopc;
#ifdef FKS_REG_LOGGING
printk(KERN_INFO "FKS: ess_dsp_reset 1\n");
ess_show_mixerregs (devc);
#endif
outb(3, DSP_RESET); /* Reset FIFO too */
udelay(10);
outb(0, DSP_RESET);
udelay(30);
for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++);
if (inb(DSP_READ) != 0xAA) {
DDB(printk("sb: No response to RESET\n"));
return 0; /* Sorry */
}
ess_extended (devc);
#ifdef FKS_LOGGING
printk(KERN_INFO "FKS: dsp_reset 2\n");
ess_show_mixerregs (devc);
#endif
return 1;
}
static int ess_irq_bits (int irq)
{
switch (irq) {
case 2:
case 9:
return 0;
case 5:
return 1;
case 7:
return 2;
case 10:
return 3;
default:
printk(KERN_ERR "ESS1688: Invalid IRQ %d\n", irq);
return -1;
}
}
/*
* Set IRQ configuration register for all ESS models
*/
static int ess_common_set_irq_hw (sb_devc * devc)
{
int irq_bits;
if ((irq_bits = ess_irq_bits (devc->irq)) == -1) return 0;
if (!ess_write (devc, 0xb1, 0x50 | (irq_bits << 2))) {
printk(KERN_ERR "ES1688: Failed to write to IRQ config register\n");
return 0;
}
return 1;
}
/*
* I wanna use modern ES1887 mixer irq handling. Funny is the
* fact that my BIOS wants the same. But suppose someone's BIOS
* doesn't do this!
* This is independent of duplex. If there's a 1887 this will
* prevent it from going into 1888 mode.
*/
static void ess_es1887_set_irq_hw (sb_devc * devc)
{
int irq_bits;
if ((irq_bits = ess_irq_bits (devc->irq)) == -1) return;
ess_chgmixer (devc, 0x7f, 0x0f, 0x01 | ((irq_bits + 1) << 1));
}
static int ess_set_irq_hw (sb_devc * devc)
{
if (devc->submodel == SUBMDL_ES1887) ess_es1887_set_irq_hw (devc);
return ess_common_set_irq_hw (devc);
}
#ifdef FKS_TEST
/*
* FKS_test:
* for ES1887: 00, 18, non wr bits: 0001 1000
* for ES1868: 00, b8, non wr bits: 1011 1000
* for ES1888: 00, f8, non wr bits: 1111 1000
* for ES1688: 00, f8, non wr bits: 1111 1000
* + ES968
*/
static void FKS_test (sb_devc * devc)
{
int val1, val2;
val1 = ess_getmixer (devc, 0x64);
ess_setmixer (devc, 0x64, ~val1);
val2 = ess_getmixer (devc, 0x64) ^ ~val1;
ess_setmixer (devc, 0x64, val1);
val1 ^= ess_getmixer (devc, 0x64);
printk (KERN_INFO "FKS: FKS_test %02x, %02x\n", (val1 & 0x0ff), (val2 & 0x0ff));
};
#endif
static unsigned int ess_identify (sb_devc * devc)
{
unsigned int val;
unsigned long flags;
spin_lock_irqsave(&devc->lock, flags);
outb(((unsigned char) (0x40 & 0xff)), MIXER_ADDR);
udelay(20);
val = inb(MIXER_DATA) << 8;
udelay(20);
val |= inb(MIXER_DATA);
udelay(20);
spin_unlock_irqrestore(&devc->lock, flags);
return val;
}
/*
* ESS technology describes a detection scheme in their docs. It involves
* fiddling with the bits in certain mixer registers. ess_probe is supposed
* to help.
*
* FKS: tracing shows ess_probe writes wrong value to 0x64. Bit 3 reads 1, but
* should be written 0 only. Check this.
*/
static int ess_probe (sb_devc * devc, int reg, int xorval)
{
int val1, val2, val3;
val1 = ess_getmixer (devc, reg);
val2 = val1 ^ xorval;
ess_setmixer (devc, reg, val2);
val3 = ess_getmixer (devc, reg);
ess_setmixer (devc, reg, val1);
return (val2 == val3);
}
int ess_init(sb_devc * devc, struct address_info *hw_config)
{
unsigned char cfg;
int ess_major = 0, ess_minor = 0;
int i;
static char name[100], modelname[10];
/*
* Try to detect ESS chips.
*/
sb_dsp_command(devc, 0xe7); /* Return identification */
for (i = 1000; i; i--) {
if (inb(DSP_DATA_AVAIL) & 0x80) {
if (ess_major == 0) {
ess_major = inb(DSP_READ);
} else {
ess_minor = inb(DSP_READ);
break;
}
}
}
if (ess_major == 0) return 0;
if (ess_major == 0x48 && (ess_minor & 0xf0) == 0x80) {
sprintf(name, "ESS ES488 AudioDrive (rev %d)",
ess_minor & 0x0f);
hw_config->name = name;
devc->model = MDL_SBPRO;
return 1;
}
/*
* This the detection heuristic of ESS technology, though somewhat
* changed to actually make it work.
* This results in the following detection steps:
* - distinct between ES688 and ES1688+ (as always done in this driver)
* if ES688 we're ready
* - try to detect ES1868, ES1869 or ES1878 (ess_identify)
* if successful we're ready
* - try to detect ES1888, ES1887 or ES1788 (aim: detect ES1887)
* if successful we're ready
* - Dunno. Must be 1688. Will do in general
*
* This is the most BETA part of the software: Will the detection
* always work?
*/
devc->model = MDL_ESS;
devc->submodel = ess_minor & 0x0f;
if (ess_major == 0x68 && (ess_minor & 0xf0) == 0x80) {
char *chip = NULL;
int submodel = -1;
switch (devc->sbmo.esstype) {
case ESSTYPE_DETECT:
case ESSTYPE_LIKE20:
break;
case 688:
submodel = 0x00;
break;
case 1688:
submodel = 0x08;
break;
case 1868:
submodel = SUBMDL_ES1868;
break;
case 1869:
submodel = SUBMDL_ES1869;
break;
case 1788:
submodel = SUBMDL_ES1788;
break;
case 1878:
submodel = SUBMDL_ES1878;
break;
case 1879:
submodel = SUBMDL_ES1879;
break;
case 1887:
submodel = SUBMDL_ES1887;
break;
case 1888:
submodel = SUBMDL_ES1888;
break;
default:
printk (KERN_ERR "Invalid esstype=%d specified\n", devc->sbmo.esstype);
return 0;
}
if (submodel != -1) {
devc->submodel = submodel;
sprintf (modelname, "ES%d", devc->sbmo.esstype);
chip = modelname;
}
if (chip == NULL && (ess_minor & 0x0f) < 8) {
chip = "ES688";
}
#ifdef FKS_TEST
FKS_test (devc);
#endif
/*
* If Nothing detected yet, and we want 2.0 behaviour...
* Then let's assume it's ES1688.
*/
if (chip == NULL && devc->sbmo.esstype == ESSTYPE_LIKE20) {
chip = "ES1688";
}
if (chip == NULL) {
int type;
type = ess_identify (devc);
switch (type) {
case 0x1868:
chip = "ES1868";
devc->submodel = SUBMDL_ES1868;
break;
case 0x1869:
chip = "ES1869";
devc->submodel = SUBMDL_ES1869;
break;
case 0x1878:
chip = "ES1878";
devc->submodel = SUBMDL_ES1878;
break;
case 0x1879:
chip = "ES1879";
devc->submodel = SUBMDL_ES1879;
break;
default:
if ((type & 0x00ff) != ((type >> 8) & 0x00ff)) {
printk ("ess_init: Unrecognized %04x\n", type);
}
}
}
#if 0
/*
* this one failed:
* the probing of bit 4 is another thought: from ES1788 and up, all
* chips seem to have hardware volume control. Bit 4 is readonly to
* check if a hardware volume interrupt has fired.
* Cause ES688/ES1688 don't have this feature, bit 4 might be writeable
* for these chips.
*/
if (chip == NULL && !ess_probe(devc, 0x64, (1 << 4))) {
#endif
/*
* the probing of bit 2 is my idea. The ES1887 docs want me to probe
* bit 3. This results in ES1688 being detected as ES1788.
* Bit 2 is for "Enable HWV IRQE", but as ES(1)688 chips don't have
* HardWare Volume, I think they don't have this IRQE.
*/
if (chip == NULL && ess_probe(devc, 0x64, (1 << 2))) {
if (ess_probe (devc, 0x70, 0x7f)) {
if (ess_probe (devc, 0x64, (1 << 5))) {
chip = "ES1887";
devc->submodel = SUBMDL_ES1887;
} else {
chip = "ES1888";
devc->submodel = SUBMDL_ES1888;
}
} else {
chip = "ES1788";
devc->submodel = SUBMDL_ES1788;
}
}
if (chip == NULL) {
chip = "ES1688";
}
printk(KERN_INFO "ESS chip %s %s%s\n", chip,
(devc->sbmo.esstype == ESSTYPE_DETECT ||
devc->sbmo.esstype == ESSTYPE_LIKE20) ?
"detected" : "specified",
devc->sbmo.esstype == ESSTYPE_LIKE20 ?
" (kernel 2.0 compatible)" : "");
sprintf(name,"ESS %s AudioDrive (rev %d)", chip, ess_minor & 0x0f);
} else {
strcpy(name, "Jazz16");
}
/* AAS: info stolen from ALSA: these boards have different clocks */
switch(devc->submodel) {
/* APPARENTLY NOT 1869 AND 1887
case SUBMDL_ES1869:
case SUBMDL_ES1887:
*/
case SUBMDL_ES1888:
devc->caps |= SB_CAP_ES18XX_RATE;
break;
}
hw_config->name = name;
/* FKS: sb_dsp_reset to enable extended mode???? */
sb_dsp_reset(devc); /* Turn on extended mode */
/*
* Enable joystick and OPL3
*/
cfg = ess_getmixer (devc, 0x40);
ess_setmixer (devc, 0x40, cfg | 0x03);
if (devc->submodel >= 8) { /* ES1688 */
devc->caps |= SB_NO_MIDI; /* ES1688 uses MPU401 MIDI mode */
}
sb_dsp_reset (devc);
/*
* This is important! If it's not done, the IRQ probe in sb_dsp_init
* may fail.
*/
return ess_set_irq_hw (devc);
}
static int ess_set_dma_hw(sb_devc * devc)
{
unsigned char cfg, dma_bits = 0, dma16_bits;
int dma;
#ifdef FKS_LOGGING
printk(KERN_INFO "ess_set_dma_hw: dma8=%d,dma16=%d,dup=%d\n"
, devc->dma8, devc->dma16, devc->duplex);
#endif
/*
* FKS: It seems as if this duplex flag isn't set yet. Check it.
*/
dma = devc->dma8;
if (dma > 3 || dma < 0 || dma == 2) {
dma_bits = 0;
printk(KERN_ERR "ESS1688: Invalid DMA8 %d\n", dma);
return 0;
} else {
/* Extended mode DMA enable */
cfg = 0x50;
if (dma == 3) {
dma_bits = 3;
} else {
dma_bits = dma + 1;
}
}
if (!ess_write (devc, 0xb2, cfg | (dma_bits << 2))) {
printk(KERN_ERR "ESS1688: Failed to write to DMA config register\n");
return 0;
}
if (devc->duplex) {
dma = devc->dma16;
dma16_bits = 0;
if (dma >= 0) {
switch (dma) {
case 0:
dma_bits = 0x04;
break;
case 1:
dma_bits = 0x05;
break;
case 3:
dma_bits = 0x06;
break;
case 5:
dma_bits = 0x07;
dma16_bits = 0x20;
break;
default:
printk(KERN_ERR "ESS1887: Invalid DMA16 %d\n", dma);
return 0;
}
ess_chgmixer (devc, 0x78, 0x20, dma16_bits);
ess_chgmixer (devc, 0x7d, 0x07, dma_bits);
}
}
return 1;
}
/*
* This one is called from sb_dsp_init.
*
* Return values:
* 0: Failed
* 1: Succeeded or doesn't apply (not SUBMDL_ES1887)
*/
int ess_dsp_init (sb_devc *devc, struct address_info *hw_config)
{
/*
* Caller also checks this, but anyway
*/
if (devc->model != MDL_ESS) {
printk (KERN_INFO "ess_dsp_init for non ESS chip\n");
return 1;
}
/*
* This for ES1887 to run Full Duplex. Actually ES1888
* is allowed to do so too. I have no idea yet if this
* will work for ES1888 however.
*
* For SB16 having both dma8 and dma16 means enable
* Full Duplex. Let's try this for ES1887 too
*
*/
if (devc->submodel == SUBMDL_ES1887) {
if (hw_config->dma2 != -1) {
devc->dma16 = hw_config->dma2;
}
/*
* devc->duplex initialization is put here, cause
* ess_set_dma_hw needs it.
*/
if (devc->dma8 != devc->dma16 && devc->dma16 != -1) {
devc->duplex = 1;
}
}
if (!ess_set_dma_hw (devc)) {
free_irq(devc->irq, devc);
return 0;
}
return 1;
}
/****************************************************************************
* *
* ESS mixer *
* *
****************************************************************************/
#define ES688_RECORDING_DEVICES \
( SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD )
#define ES688_MIXER_DEVICES \
( SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE \
| SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME \
| SOUND_MASK_LINE2 | SOUND_MASK_SPEAKER )
#define ES1688_RECORDING_DEVICES \
( ES688_RECORDING_DEVICES )
#define ES1688_MIXER_DEVICES \
( ES688_MIXER_DEVICES | SOUND_MASK_RECLEV )
#define ES1887_RECORDING_DEVICES \
( ES1688_RECORDING_DEVICES | SOUND_MASK_LINE2 | SOUND_MASK_SYNTH)
#define ES1887_MIXER_DEVICES \
( ES1688_MIXER_DEVICES )
/*
* Mixer registers of ES1887
*
* These registers specifically take care of recording levels. To make the
* mapping from playback devices to recording devices every recording
* devices = playback device + ES_REC_MIXER_RECDIFF
*/
#define ES_REC_MIXER_RECBASE (SOUND_MIXER_LINE3 + 1)
#define ES_REC_MIXER_RECDIFF (ES_REC_MIXER_RECBASE - SOUND_MIXER_SYNTH)
#define ES_REC_MIXER_RECSYNTH (SOUND_MIXER_SYNTH + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECPCM (SOUND_MIXER_PCM + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECSPEAKER (SOUND_MIXER_SPEAKER + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECLINE (SOUND_MIXER_LINE + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECMIC (SOUND_MIXER_MIC + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECCD (SOUND_MIXER_CD + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECIMIX (SOUND_MIXER_IMIX + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECALTPCM (SOUND_MIXER_ALTPCM + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECRECLEV (SOUND_MIXER_RECLEV + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECIGAIN (SOUND_MIXER_IGAIN + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECOGAIN (SOUND_MIXER_OGAIN + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECLINE1 (SOUND_MIXER_LINE1 + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECLINE2 (SOUND_MIXER_LINE2 + ES_REC_MIXER_RECDIFF)
#define ES_REC_MIXER_RECLINE3 (SOUND_MIXER_LINE3 + ES_REC_MIXER_RECDIFF)
static mixer_tab es688_mix = {
MIX_ENT(SOUND_MIXER_VOLUME, 0x32, 7, 4, 0x32, 3, 4),
MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0)
};
/*
* The ES1688 specifics... hopefully correct...
* - 6 bit master volume
* I was wrong, ES1888 docs say ES1688 didn't have it.
* - RECLEV control
* These may apply to ES688 too. I have no idea.
*/
static mixer_tab es1688_mix = {
MIX_ENT(SOUND_MIXER_VOLUME, 0x32, 7, 4, 0x32, 3, 4),
MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0)
};
static mixer_tab es1688later_mix = {
MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6),
MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0)
};
/*
* This one is for all ESS chips with a record mixer.
* It's not used (yet) however
*/
static mixer_tab es_rec_mix = {
MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6),
MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4),
MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECSYNTH, 0x6b, 7, 4, 0x6b, 3, 4),
MIX_ENT(ES_REC_MIXER_RECPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECSPEAKER, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECLINE, 0x6e, 7, 4, 0x6e, 3, 4),
MIX_ENT(ES_REC_MIXER_RECMIC, 0x68, 7, 4, 0x68, 3, 4),
MIX_ENT(ES_REC_MIXER_RECCD, 0x6a, 7, 4, 0x6a, 3, 4),
MIX_ENT(ES_REC_MIXER_RECIMIX, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECALTPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECRECLEV, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECIGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECOGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECLINE1, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECLINE2, 0x6c, 7, 4, 0x6c, 3, 4),
MIX_ENT(ES_REC_MIXER_RECLINE3, 0x00, 0, 0, 0x00, 0, 0)
};
/*
* This one is for ES1887. It's little different from es_rec_mix: it
* has 0x7c for PCM playback level. This is because ES1887 uses
* Audio 2 for playback.
*/
static mixer_tab es1887_mix = {
MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6),
MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4),
MIX_ENT(SOUND_MIXER_PCM, 0x7c, 7, 4, 0x7c, 3, 4),
MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4),
MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4),
MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4),
MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4),
MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4),
MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECSYNTH, 0x6b, 7, 4, 0x6b, 3, 4),
MIX_ENT(ES_REC_MIXER_RECPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECSPEAKER, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECLINE, 0x6e, 7, 4, 0x6e, 3, 4),
MIX_ENT(ES_REC_MIXER_RECMIC, 0x68, 7, 4, 0x68, 3, 4),
MIX_ENT(ES_REC_MIXER_RECCD, 0x6a, 7, 4, 0x6a, 3, 4),
MIX_ENT(ES_REC_MIXER_RECIMIX, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECALTPCM, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECRECLEV, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECIGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECOGAIN, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECLINE1, 0x00, 0, 0, 0x00, 0, 0),
MIX_ENT(ES_REC_MIXER_RECLINE2, 0x6c, 7, 4, 0x6c, 3, 4),
MIX_ENT(ES_REC_MIXER_RECLINE3, 0x00, 0, 0, 0x00, 0, 0)
};
static int ess_has_rec_mixer (int submodel)
{
switch (submodel) {
case SUBMDL_ES1887:
return 1;
default:
return 0;
}
};
#ifdef FKS_LOGGING
static int ess_mixer_mon_regs[]
= { 0x70, 0x71, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7d, 0x7f
, 0xa1, 0xa2, 0xa4, 0xa5, 0xa8, 0xa9
, 0xb1, 0xb2, 0xb4, 0xb5, 0xb6, 0xb7, 0xb9
, 0x00};
static void ess_show_mixerregs (sb_devc *devc)
{
int *mp = ess_mixer_mon_regs;
return;
while (*mp != 0) {
printk (KERN_INFO "res (%x)=%x\n", *mp, (int)(ess_getmixer (devc, *mp)));
mp++;
}
}
#endif
void ess_setmixer (sb_devc * devc, unsigned int port, unsigned int value)
{
unsigned long flags;
#ifdef FKS_LOGGING
printk(KERN_INFO "FKS: write mixer %x: %x\n", port, value);
#endif
spin_lock_irqsave(&devc->lock, flags);
if (port >= 0xa0) {
ess_write (devc, port, value);
} else {
outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
udelay(20);
outb(((unsigned char) (value & 0xff)), MIXER_DATA);
udelay(20);
}
spin_unlock_irqrestore(&devc->lock, flags);
}
unsigned int ess_getmixer (sb_devc * devc, unsigned int port)
{
unsigned int val;
unsigned long flags;
spin_lock_irqsave(&devc->lock, flags);
if (port >= 0xa0) {
val = ess_read (devc, port);
} else {
outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
udelay(20);
val = inb(MIXER_DATA);
udelay(20);
}
spin_unlock_irqrestore(&devc->lock, flags);
return val;
}
static void ess_chgmixer
(sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val)
{
int value;
value = ess_getmixer (devc, reg);
value = (value & ~mask) | (val & mask);
ess_setmixer (devc, reg, value);
}
/*
* ess_mixer_init must be called from sb_mixer_init
*/
void ess_mixer_init (sb_devc * devc)
{
devc->mixer_caps = SOUND_CAP_EXCL_INPUT;
/*
* Take care of ES1887 specifics...
*/
switch (devc->submodel) {
case SUBMDL_ES1887:
devc->supported_devices = ES1887_MIXER_DEVICES;
devc->supported_rec_devices = ES1887_RECORDING_DEVICES;
#ifdef FKS_LOGGING
printk (KERN_INFO "FKS: ess_mixer_init dup = %d\n", devc->duplex);
#endif
if (devc->duplex) {
devc->iomap = &es1887_mix;
devc->iomap_sz = ARRAY_SIZE(es1887_mix);
} else {
devc->iomap = &es_rec_mix;
devc->iomap_sz = ARRAY_SIZE(es_rec_mix);
}
break;
default:
if (devc->submodel < 8) {
devc->supported_devices = ES688_MIXER_DEVICES;
devc->supported_rec_devices = ES688_RECORDING_DEVICES;
devc->iomap = &es688_mix;
devc->iomap_sz = ARRAY_SIZE(es688_mix);
} else {
/*
* es1688 has 4 bits master vol.
* later chips have 6 bits (?)
*/
devc->supported_devices = ES1688_MIXER_DEVICES;
devc->supported_rec_devices = ES1688_RECORDING_DEVICES;
if (devc->submodel < 0x10) {
devc->iomap = &es1688_mix;
devc->iomap_sz = ARRAY_SIZE(es688_mix);
} else {
devc->iomap = &es1688later_mix;
devc->iomap_sz = ARRAY_SIZE(es1688later_mix);
}
}
}
}
/*
* Changing playback levels at an ESS chip with record mixer means having to
* take care of recording levels of recorded inputs (devc->recmask) too!
*/
int ess_mixer_set(sb_devc *devc, int dev, int left, int right)
{
if (ess_has_rec_mixer (devc->submodel) && (devc->recmask & (1 << dev))) {
sb_common_mixer_set (devc, dev + ES_REC_MIXER_RECDIFF, left, right);
}
return sb_common_mixer_set (devc, dev, left, right);
}
/*
* After a sb_dsp_reset extended register 0xb4 (RECLEV) is reset too. After
* sb_dsp_reset RECLEV has to be restored. This is where ess_mixer_reload
* helps.
*/
void ess_mixer_reload (sb_devc *devc, int dev)
{
int left, right, value;
value = devc->levels[dev];
left = value & 0x000000ff;
right = (value & 0x0000ff00) >> 8;
sb_common_mixer_set(devc, dev, left, right);
}
static int es_rec_set_recmask(sb_devc * devc, int mask)
{
int i, i_mask, cur_mask, diff_mask;
int value, left, right;
#ifdef FKS_LOGGING
printk (KERN_INFO "FKS: es_rec_set_recmask mask = %x\n", mask);
#endif
/*
* Changing the recmask on an ESS chip with recording mixer means:
* (1) Find the differences
* (2) For "turned-on" inputs: make the recording level the playback level
* (3) For "turned-off" inputs: make the recording level zero
*/
cur_mask = devc->recmask;
diff_mask = (cur_mask ^ mask);
for (i = 0; i < 32; i++) {
i_mask = (1 << i);
if (diff_mask & i_mask) { /* Difference? (1) */
if (mask & i_mask) { /* Turn it on (2) */
value = devc->levels[i];
left = value & 0x000000ff;
right = (value & 0x0000ff00) >> 8;
} else { /* Turn it off (3) */
left = 0;
right = 0;
}
sb_common_mixer_set(devc, i + ES_REC_MIXER_RECDIFF, left, right);
}
}
return mask;
}
int ess_set_recmask(sb_devc * devc, int *mask)
{
/* This applies to ESS chips with record mixers only! */
if (ess_has_rec_mixer (devc->submodel)) {
*mask = es_rec_set_recmask (devc, *mask);
return 1; /* Applied */
} else {
return 0; /* Not applied */
}
}
/*
* ess_mixer_reset must be called from sb_mixer_reset
*/
int ess_mixer_reset (sb_devc * devc)
{
/*
* Separate actions for ESS chips with a record mixer:
*/
if (ess_has_rec_mixer (devc->submodel)) {
switch (devc->submodel) {
case SUBMDL_ES1887:
/*
* Separate actions for ES1887:
* Change registers 7a and 1c to make the record mixer the
* actual recording source.
*/
ess_chgmixer(devc, 0x7a, 0x18, 0x08);
ess_chgmixer(devc, 0x1c, 0x07, 0x07);
break;
}
/*
* Call set_recmask for proper initialization
*/
devc->recmask = devc->supported_rec_devices;
es_rec_set_recmask(devc, 0);
devc->recmask = 0;
return 1; /* We took care of recmask. */
} else {
return 0; /* We didn't take care; caller do it */
}
}
/****************************************************************************
* *
* ESS midi *
* *
****************************************************************************/
/*
* FKS: IRQ may be shared. Hm. And if so? Then What?
*/
int ess_midi_init(sb_devc * devc, struct address_info *hw_config)
{
unsigned char cfg, tmp;
cfg = ess_getmixer (devc, 0x40) & 0x03;
if (devc->submodel < 8) {
ess_setmixer (devc, 0x40, cfg | 0x03); /* Enable OPL3 & joystick */
return 0; /* ES688 doesn't support MPU401 mode */
}
tmp = (hw_config->io_base & 0x0f0) >> 4;
if (tmp > 3) {
ess_setmixer (devc, 0x40, cfg);
return 0;
}
cfg |= tmp << 3;
tmp = 1; /* MPU enabled without interrupts */
/* May be shared: if so the value is -ve */
switch (abs(hw_config->irq)) {
case 9:
tmp = 0x4;
break;
case 5:
tmp = 0x5;
break;
case 7:
tmp = 0x6;
break;
case 10:
tmp = 0x7;
break;
default:
return 0;
}
cfg |= tmp << 5;
ess_setmixer (devc, 0x40, cfg | 0x03);
return 1;
}
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