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qemu/hw/audio/es1370.c
Volker Rümelin c19fd37eb3 hw/audio/es1370: reset current sample counter 
Reset the current sample counter when writing the Channel Sample
Count Register. The Linux ens1370 driver and the AROS sb128
driver expect the current sample counter counts down from sample
count to 0 after a write to the Channel Sample Count Register.
Currently the current sample counter starts from 0 after a reset
or the last count when the counter was stopped.

The current sample counter is used to raise an interrupt whenever
a complete buffer was transferred. When the counter starts with a
value lower than the reload value, the interrupt triggeres before
the buffer was completly transferred. This may lead to corrupted
audio streams.

Tested-by: Rene Engel <ReneEngel80@emailn.de>
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20230917065813.6692-1-vr_qemu@t-online.de>
(cherry picked from commit 00e3b29d06)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-10-21 14:05:14 +03:00

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/*
* QEMU ES1370 emulation
*
* Copyright (c) 2005 Vassili Karpov (malc)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/* #define DEBUG_ES1370 */
/* #define VERBOSE_ES1370 */
#define SILENT_ES1370
#include "qemu/osdep.h"
#include "hw/audio/soundhw.h"
#include "audio/audio.h"
#include "hw/pci/pci.h"
#include "migration/vmstate.h"
#include "qemu/module.h"
#include "sysemu/dma.h"
#include "qom/object.h"
/* Missing stuff:
SCTRL_P[12](END|ST)INC
SCTRL_P1SCTRLD
SCTRL_P2DACSEN
CTRL_DAC_SYNC
MIDI
non looped mode
surely more
*/
/*
Following macros and samplerate array were copied verbatim from
Linux kernel 2.4.30: drivers/sound/es1370.c
Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
*/
/* Start blatant GPL violation */
#define ES1370_REG_CONTROL 0x00
#define ES1370_REG_STATUS 0x04
#define ES1370_REG_UART_DATA 0x08
#define ES1370_REG_UART_STATUS 0x09
#define ES1370_REG_UART_CONTROL 0x09
#define ES1370_REG_UART_TEST 0x0a
#define ES1370_REG_MEMPAGE 0x0c
#define ES1370_REG_CODEC 0x10
#define ES1370_REG_SERIAL_CONTROL 0x20
#define ES1370_REG_DAC1_SCOUNT 0x24
#define ES1370_REG_DAC2_SCOUNT 0x28
#define ES1370_REG_ADC_SCOUNT 0x2c
#define ES1370_REG_DAC1_FRAMEADR 0xc30
#define ES1370_REG_DAC1_FRAMECNT 0xc34
#define ES1370_REG_DAC2_FRAMEADR 0xc38
#define ES1370_REG_DAC2_FRAMECNT 0xc3c
#define ES1370_REG_ADC_FRAMEADR 0xd30
#define ES1370_REG_ADC_FRAMECNT 0xd34
#define ES1370_REG_PHANTOM_FRAMEADR 0xd38
#define ES1370_REG_PHANTOM_FRAMECNT 0xd3c
static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
#define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
#define DAC2_DIVTOSR(x) (1411200/((x)+2))
#define CTRL_ADC_STOP 0x80000000 /* 1 = ADC stopped */
#define CTRL_XCTL1 0x40000000 /* electret mic bias */
#define CTRL_OPEN 0x20000000 /* no function, can be read and written */
#define CTRL_PCLKDIV 0x1fff0000 /* ADC/DAC2 clock divider */
#define CTRL_SH_PCLKDIV 16
#define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
#define CTRL_M_SBB 0x00004000 /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
#define CTRL_WTSRSEL 0x00003000 /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
#define CTRL_SH_WTSRSEL 12
#define CTRL_DAC_SYNC 0x00000800 /* 1 = DAC2 runs off DAC1 clock */
#define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
#define CTRL_M_CB 0x00000200 /* recording source: 0 = ADC, 1 = MPEG */
#define CTRL_XCTL0 0x00000100 /* 0 = Line in, 1 = Line out */
#define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
#define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
#define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
#define CTRL_ADC_EN 0x00000010 /* enable ADC */
#define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
#define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port (presumably at address 0x200) */
#define CTRL_CDC_EN 0x00000002 /* enable serial (CODEC) interface */
#define CTRL_SERR_DIS 0x00000001 /* 1 = disable PCI SERR signal */
#define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
#define STAT_CSTAT 0x00000400 /* 1 = codec busy or codec write in progress */
#define STAT_CBUSY 0x00000200 /* 1 = codec busy */
#define STAT_CWRIP 0x00000100 /* 1 = codec write in progress */
#define STAT_VC 0x00000060 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
#define STAT_SH_VC 5
#define STAT_MCCB 0x00000010 /* CCB int pending */
#define STAT_UART 0x00000008 /* UART int pending */
#define STAT_DAC1 0x00000004 /* DAC1 int pending */
#define STAT_DAC2 0x00000002 /* DAC2 int pending */
#define STAT_ADC 0x00000001 /* ADC int pending */
#define USTAT_RXINT 0x80 /* UART rx int pending */
#define USTAT_TXINT 0x04 /* UART tx int pending */
#define USTAT_TXRDY 0x02 /* UART tx ready */
#define USTAT_RXRDY 0x01 /* UART rx ready */
#define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
#define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
#define UCTRL_ENA_TXINT 0x20 /* enable TX int */
#define UCTRL_CNTRL 0x03 /* control field */
#define UCTRL_CNTRL_SWR 0x03 /* software reset command */
#define SCTRL_P2ENDINC 0x00380000 /* */
#define SCTRL_SH_P2ENDINC 19
#define SCTRL_P2STINC 0x00070000 /* */
#define SCTRL_SH_P2STINC 16
#define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
#define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
#define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
#define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
#define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
#define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
#define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
#define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
#define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
#define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
#define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
#define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
#define SCTRL_R1FMT 0x00000030 /* format mask */
#define SCTRL_SH_R1FMT 4
#define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
#define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
#define SCTRL_P2FMT 0x0000000c /* format mask */
#define SCTRL_SH_P2FMT 2
#define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
#define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
#define SCTRL_P1FMT 0x00000003 /* format mask */
#define SCTRL_SH_P1FMT 0
/* End blatant GPL violation */
#define NB_CHANNELS 3
#define DAC1_CHANNEL 0
#define DAC2_CHANNEL 1
#define ADC_CHANNEL 2
static void es1370_dac1_callback (void *opaque, int free);
static void es1370_dac2_callback (void *opaque, int free);
static void es1370_adc_callback (void *opaque, int avail);
#ifdef DEBUG_ES1370
#define ldebug(...) AUD_log ("es1370", __VA_ARGS__)
static void print_ctl (uint32_t val)
{
char buf[1024];
buf[0] = '\0';
#define a(n) if (val & CTRL_##n) strcat (buf, " "#n)
a (ADC_STOP);
a (XCTL1);
a (OPEN);
a (MSFMTSEL);
a (M_SBB);
a (DAC_SYNC);
a (CCB_INTRM);
a (M_CB);
a (XCTL0);
a (BREQ);
a (DAC1_EN);
a (DAC2_EN);
a (ADC_EN);
a (UART_EN);
a (JYSTK_EN);
a (CDC_EN);
a (SERR_DIS);
#undef a
AUD_log ("es1370", "ctl - PCLKDIV %d(DAC2 freq %d), freq %d,%s\n",
(val & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV,
DAC2_DIVTOSR ((val & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
dac1_samplerate[(val & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
buf);
}
static void print_sctl (uint32_t val)
{
static const char *fmt_names[] = {"8M", "8S", "16M", "16S"};
char buf[1024];
buf[0] = '\0';
#define a(n) if (val & SCTRL_##n) strcat (buf, " "#n)
#define b(n) if (!(val & SCTRL_##n)) strcat (buf, " "#n)
b (R1LOOPSEL);
b (P2LOOPSEL);
b (P1LOOPSEL);
a (P2PAUSE);
a (P1PAUSE);
a (R1INTEN);
a (P2INTEN);
a (P1INTEN);
a (P1SCTRLD);
a (P2DACSEN);
if (buf[0]) {
strcat (buf, "\n ");
}
else {
buf[0] = ' ';
buf[1] = '\0';
}
#undef b
#undef a
AUD_log ("es1370",
"%s"
"p2_end_inc %d, p2_st_inc %d, r1_fmt %s, p2_fmt %s, p1_fmt %s\n",
buf,
(val & SCTRL_P2ENDINC) >> SCTRL_SH_P2ENDINC,
(val & SCTRL_P2STINC) >> SCTRL_SH_P2STINC,
fmt_names [(val >> SCTRL_SH_R1FMT) & 3],
fmt_names [(val >> SCTRL_SH_P2FMT) & 3],
fmt_names [(val >> SCTRL_SH_P1FMT) & 3]
);
}
#else
#define ldebug(...)
#define print_ctl(...)
#define print_sctl(...)
#endif
#ifdef VERBOSE_ES1370
#define dolog(...) AUD_log ("es1370", __VA_ARGS__)
#else
#define dolog(...)
#endif
#ifndef SILENT_ES1370
#define lwarn(...) AUD_log ("es1370: warning", __VA_ARGS__)
#else
#define lwarn(...)
#endif
struct chan {
uint32_t shift;
uint32_t leftover;
uint32_t scount;
uint32_t frame_addr;
uint32_t frame_cnt;
};
struct ES1370State {
PCIDevice dev;
QEMUSoundCard card;
MemoryRegion io;
struct chan chan[NB_CHANNELS];
SWVoiceOut *dac_voice[2];
SWVoiceIn *adc_voice;
uint32_t ctl;
uint32_t status;
uint32_t mempage;
uint32_t codec;
uint32_t sctl;
};
typedef struct ES1370State ES1370State;
struct chan_bits {
uint32_t ctl_en;
uint32_t stat_int;
uint32_t sctl_pause;
uint32_t sctl_inten;
uint32_t sctl_fmt;
uint32_t sctl_sh_fmt;
uint32_t sctl_loopsel;
void (*calc_freq) (ES1370State *s, uint32_t ctl,
uint32_t *old_freq, uint32_t *new_freq);
};
#define TYPE_ES1370 "ES1370"
OBJECT_DECLARE_SIMPLE_TYPE(ES1370State, ES1370)
static void es1370_dac1_calc_freq (ES1370State *s, uint32_t ctl,
uint32_t *old_freq, uint32_t *new_freq);
static void es1370_dac2_and_adc_calc_freq (ES1370State *s, uint32_t ctl,
uint32_t *old_freq,
uint32_t *new_freq);
static const struct chan_bits es1370_chan_bits[] = {
{CTRL_DAC1_EN, STAT_DAC1, SCTRL_P1PAUSE, SCTRL_P1INTEN,
SCTRL_P1FMT, SCTRL_SH_P1FMT, SCTRL_P1LOOPSEL,
es1370_dac1_calc_freq},
{CTRL_DAC2_EN, STAT_DAC2, SCTRL_P2PAUSE, SCTRL_P2INTEN,
SCTRL_P2FMT, SCTRL_SH_P2FMT, SCTRL_P2LOOPSEL,
es1370_dac2_and_adc_calc_freq},
{CTRL_ADC_EN, STAT_ADC, 0, SCTRL_R1INTEN,
SCTRL_R1FMT, SCTRL_SH_R1FMT, SCTRL_R1LOOPSEL,
es1370_dac2_and_adc_calc_freq}
};
static void es1370_update_status (ES1370State *s, uint32_t new_status)
{
uint32_t level = new_status & (STAT_DAC1 | STAT_DAC2 | STAT_ADC);
if (level) {
s->status = new_status | STAT_INTR;
}
else {
s->status = new_status & ~STAT_INTR;
}
pci_set_irq(&s->dev, !!level);
}
static void es1370_reset (ES1370State *s)
{
size_t i;
s->ctl = 1;
s->status = 0x60;
s->mempage = 0;
s->codec = 0;
s->sctl = 0;
for (i = 0; i < NB_CHANNELS; ++i) {
struct chan *d = &s->chan[i];
d->scount = 0;
d->leftover = 0;
if (i == ADC_CHANNEL) {
AUD_close_in (&s->card, s->adc_voice);
s->adc_voice = NULL;
}
else {
AUD_close_out (&s->card, s->dac_voice[i]);
s->dac_voice[i] = NULL;
}
}
pci_irq_deassert(&s->dev);
}
static void es1370_maybe_lower_irq (ES1370State *s, uint32_t sctl)
{
uint32_t new_status = s->status;
if (!(sctl & SCTRL_P1INTEN) && (s->sctl & SCTRL_P1INTEN)) {
new_status &= ~STAT_DAC1;
}
if (!(sctl & SCTRL_P2INTEN) && (s->sctl & SCTRL_P2INTEN)) {
new_status &= ~STAT_DAC2;
}
if (!(sctl & SCTRL_R1INTEN) && (s->sctl & SCTRL_R1INTEN)) {
new_status &= ~STAT_ADC;
}
if (new_status != s->status) {
es1370_update_status (s, new_status);
}
}
static void es1370_dac1_calc_freq (ES1370State *s, uint32_t ctl,
uint32_t *old_freq, uint32_t *new_freq)
{
*old_freq = dac1_samplerate[(s->ctl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
*new_freq = dac1_samplerate[(ctl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
}
static void es1370_dac2_and_adc_calc_freq (ES1370State *s, uint32_t ctl,
uint32_t *old_freq,
uint32_t *new_freq)
{
uint32_t old_pclkdiv, new_pclkdiv;
new_pclkdiv = (ctl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV;
old_pclkdiv = (s->ctl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV;
*new_freq = DAC2_DIVTOSR (new_pclkdiv);
*old_freq = DAC2_DIVTOSR (old_pclkdiv);
}
static void es1370_update_voices (ES1370State *s, uint32_t ctl, uint32_t sctl)
{
size_t i;
uint32_t old_freq, new_freq, old_fmt, new_fmt;
for (i = 0; i < NB_CHANNELS; ++i) {
struct chan *d = &s->chan[i];
const struct chan_bits *b = &es1370_chan_bits[i];
new_fmt = (sctl & b->sctl_fmt) >> b->sctl_sh_fmt;
old_fmt = (s->sctl & b->sctl_fmt) >> b->sctl_sh_fmt;
b->calc_freq (s, ctl, &old_freq, &new_freq);
if ((old_fmt != new_fmt) || (old_freq != new_freq)) {
d->shift = (new_fmt & 1) + (new_fmt >> 1);
ldebug ("channel %zu, freq = %d, nchannels %d, fmt %d, shift %d\n",
i,
new_freq,
1 << (new_fmt & 1),
(new_fmt & 2) ? AUDIO_FORMAT_S16 : AUDIO_FORMAT_U8,
d->shift);
if (new_freq) {
struct audsettings as;
as.freq = new_freq;
as.nchannels = 1 << (new_fmt & 1);
as.fmt = (new_fmt & 2) ? AUDIO_FORMAT_S16 : AUDIO_FORMAT_U8;
as.endianness = 0;
if (i == ADC_CHANNEL) {
s->adc_voice =
AUD_open_in (
&s->card,
s->adc_voice,
"es1370.adc",
s,
es1370_adc_callback,
&as
);
}
else {
s->dac_voice[i] =
AUD_open_out (
&s->card,
s->dac_voice[i],
i ? "es1370.dac2" : "es1370.dac1",
s,
i ? es1370_dac2_callback : es1370_dac1_callback,
&as
);
}
}
}
if (((ctl ^ s->ctl) & b->ctl_en)
|| ((sctl ^ s->sctl) & b->sctl_pause)) {
int on = (ctl & b->ctl_en) && !(sctl & b->sctl_pause);
if (i == ADC_CHANNEL) {
AUD_set_active_in (s->adc_voice, on);
}
else {
AUD_set_active_out (s->dac_voice[i], on);
}
}
}
s->ctl = ctl;
s->sctl = sctl;
}
static inline uint32_t es1370_fixup (ES1370State *s, uint32_t addr)
{
addr &= 0xff;
if (addr >= 0x30 && addr <= 0x3f)
addr |= s->mempage << 8;
return addr;
}
static void es1370_write(void *opaque, hwaddr addr, uint64_t val, unsigned size)
{
ES1370State *s = opaque;
struct chan *d = &s->chan[0];
addr = es1370_fixup (s, addr);
switch (addr) {
case ES1370_REG_CONTROL:
es1370_update_voices (s, val, s->sctl);
print_ctl (val);
break;
case ES1370_REG_MEMPAGE:
s->mempage = val & 0xf;
break;
case ES1370_REG_SERIAL_CONTROL:
es1370_maybe_lower_irq (s, val);
es1370_update_voices (s, s->ctl, val);
print_sctl (val);
break;
case ES1370_REG_DAC1_SCOUNT:
case ES1370_REG_DAC2_SCOUNT:
case ES1370_REG_ADC_SCOUNT:
d += (addr - ES1370_REG_DAC1_SCOUNT) >> 2;
d->scount = (val & 0xffff) << 16 | (val & 0xffff);
ldebug ("chan %td CURR_SAMP_CT %d, SAMP_CT %d\n",
d - &s->chan[0], val >> 16, (val & 0xffff));
break;
case ES1370_REG_ADC_FRAMEADR:
d += 2;
goto frameadr;
case ES1370_REG_DAC1_FRAMEADR:
case ES1370_REG_DAC2_FRAMEADR:
d += (addr - ES1370_REG_DAC1_FRAMEADR) >> 3;
frameadr:
d->frame_addr = val;
ldebug ("chan %td frame address %#x\n", d - &s->chan[0], val);
break;
case ES1370_REG_PHANTOM_FRAMECNT:
lwarn ("writing to phantom frame count %#x\n", val);
break;
case ES1370_REG_PHANTOM_FRAMEADR:
lwarn ("writing to phantom frame address %#x\n", val);
break;
case ES1370_REG_ADC_FRAMECNT:
d += 2;
goto framecnt;
case ES1370_REG_DAC1_FRAMECNT:
case ES1370_REG_DAC2_FRAMECNT:
d += (addr - ES1370_REG_DAC1_FRAMECNT) >> 3;
framecnt:
d->frame_cnt = val;
d->leftover = 0;
ldebug ("chan %td frame count %d, buffer size %d\n",
d - &s->chan[0], val >> 16, val & 0xffff);
break;
default:
lwarn ("writel %#x <- %#x\n", addr, val);
break;
}
}
static uint64_t es1370_read(void *opaque, hwaddr addr, unsigned size)
{
ES1370State *s = opaque;
uint32_t val;
struct chan *d = &s->chan[0];
addr = es1370_fixup (s, addr);
switch (addr) {
case ES1370_REG_CONTROL:
val = s->ctl;
break;
case ES1370_REG_STATUS:
val = s->status;
break;
case ES1370_REG_MEMPAGE:
val = s->mempage;
break;
case ES1370_REG_CODEC:
val = s->codec;
break;
case ES1370_REG_SERIAL_CONTROL:
val = s->sctl;
break;
case ES1370_REG_DAC1_SCOUNT:
case ES1370_REG_DAC2_SCOUNT:
case ES1370_REG_ADC_SCOUNT:
d += (addr - ES1370_REG_DAC1_SCOUNT) >> 2;
val = d->scount;
#ifdef DEBUG_ES1370
{
uint32_t curr_count = d->scount >> 16;
uint32_t count = d->scount & 0xffff;
curr_count <<= d->shift;
count <<= d->shift;
dolog ("read scount curr %d, total %d\n", curr_count, count);
}
#endif
break;
case ES1370_REG_ADC_FRAMECNT:
d += 2;
goto framecnt;
case ES1370_REG_DAC1_FRAMECNT:
case ES1370_REG_DAC2_FRAMECNT:
d += (addr - ES1370_REG_DAC1_FRAMECNT) >> 3;
framecnt:
val = d->frame_cnt;
#ifdef DEBUG_ES1370
{
uint32_t size = ((d->frame_cnt & 0xffff) + 1) << 2;
uint32_t curr = ((d->frame_cnt >> 16) + 1) << 2;
if (curr > size) {
dolog ("read framecnt curr %d, size %d %d\n", curr, size,
curr > size);
}
}
#endif
break;
case ES1370_REG_ADC_FRAMEADR:
d += 2;
goto frameadr;
case ES1370_REG_DAC1_FRAMEADR:
case ES1370_REG_DAC2_FRAMEADR:
d += (addr - ES1370_REG_DAC1_FRAMEADR) >> 3;
frameadr:
val = d->frame_addr;
break;
case ES1370_REG_PHANTOM_FRAMECNT:
val = ~0U;
lwarn ("reading from phantom frame count\n");
break;
case ES1370_REG_PHANTOM_FRAMEADR:
val = ~0U;
lwarn ("reading from phantom frame address\n");
break;
default:
val = ~0U;
lwarn ("readl %#x -> %#x\n", addr, val);
break;
}
return val;
}
static void es1370_transfer_audio (ES1370State *s, struct chan *d, int loop_sel,
int max, int *irq)
{
uint8_t tmpbuf[4096];
uint32_t addr = d->frame_addr;
int sc = d->scount & 0xffff;
int csc = d->scount >> 16;
int csc_bytes = (csc + 1) << d->shift;
int cnt = d->frame_cnt >> 16;
int size = d->frame_cnt & 0xffff;
if (size < cnt) {
return;
}
int left = ((size - cnt + 1) << 2) + d->leftover;
int transferred = 0;
int temp = MIN (max, MIN (left, csc_bytes));
int index = d - &s->chan[0];
addr += (cnt << 2) + d->leftover;
if (index == ADC_CHANNEL) {
while (temp > 0) {
int acquired, to_copy;
to_copy = MIN ((size_t) temp, sizeof (tmpbuf));
acquired = AUD_read (s->adc_voice, tmpbuf, to_copy);
if (!acquired)
break;
pci_dma_write (&s->dev, addr, tmpbuf, acquired);
temp -= acquired;
addr += acquired;
transferred += acquired;
}
}
else {
SWVoiceOut *voice = s->dac_voice[index];
while (temp > 0) {
int copied, to_copy;
to_copy = MIN ((size_t) temp, sizeof (tmpbuf));
pci_dma_read (&s->dev, addr, tmpbuf, to_copy);
copied = AUD_write (voice, tmpbuf, to_copy);
if (!copied)
break;
temp -= copied;
addr += copied;
transferred += copied;
}
}
if (csc_bytes == transferred) {
*irq = 1;
d->scount = sc | (sc << 16);
ldebug ("sc = %d, rate = %f\n",
(sc + 1) << d->shift,
(sc + 1) / (double) 44100);
}
else {
*irq = 0;
d->scount = sc | (((csc_bytes - transferred - 1) >> d->shift) << 16);
}
cnt += (transferred + d->leftover) >> 2;
if (s->sctl & loop_sel) {
/* Bah, how stupid is that having a 0 represent true value?
i just spent few hours on this shit */
AUD_log ("es1370: warning", "non looping mode\n");
}
else {
d->frame_cnt = size;
if ((uint32_t) cnt <= d->frame_cnt)
d->frame_cnt |= cnt << 16;
}
d->leftover = (transferred + d->leftover) & 3;
}
static void es1370_run_channel (ES1370State *s, size_t chan, int free_or_avail)
{
uint32_t new_status = s->status;
int max_bytes, irq;
struct chan *d = &s->chan[chan];
const struct chan_bits *b = &es1370_chan_bits[chan];
if (!(s->ctl & b->ctl_en) || (s->sctl & b->sctl_pause)) {
return;
}
max_bytes = free_or_avail;
max_bytes &= ~((1 << d->shift) - 1);
if (!max_bytes) {
return;
}
es1370_transfer_audio (s, d, b->sctl_loopsel, max_bytes, &irq);
if (irq) {
if (s->sctl & b->sctl_inten) {
new_status |= b->stat_int;
}
}
if (new_status != s->status) {
es1370_update_status (s, new_status);
}
}
static void es1370_dac1_callback (void *opaque, int free)
{
ES1370State *s = opaque;
es1370_run_channel (s, DAC1_CHANNEL, free);
}
static void es1370_dac2_callback (void *opaque, int free)
{
ES1370State *s = opaque;
es1370_run_channel (s, DAC2_CHANNEL, free);
}
static void es1370_adc_callback (void *opaque, int avail)
{
ES1370State *s = opaque;
es1370_run_channel (s, ADC_CHANNEL, avail);
}
static const MemoryRegionOps es1370_io_ops = {
.read = es1370_read,
.write = es1370_write,
.valid = {
.min_access_size = 1,
.max_access_size = 4,
},
.impl = {
.min_access_size = 4,
.max_access_size = 4,
},
.endianness = DEVICE_LITTLE_ENDIAN,
};
static const VMStateDescription vmstate_es1370_channel = {
.name = "es1370_channel",
.version_id = 2,
.minimum_version_id = 2,
.fields = (VMStateField[]) {
VMSTATE_UINT32 (shift, struct chan),
VMSTATE_UINT32 (leftover, struct chan),
VMSTATE_UINT32 (scount, struct chan),
VMSTATE_UINT32 (frame_addr, struct chan),
VMSTATE_UINT32 (frame_cnt, struct chan),
VMSTATE_END_OF_LIST ()
}
};
static int es1370_post_load (void *opaque, int version_id)
{
uint32_t ctl, sctl;
ES1370State *s = opaque;
size_t i;
for (i = 0; i < NB_CHANNELS; ++i) {
if (i == ADC_CHANNEL) {
if (s->adc_voice) {
AUD_close_in (&s->card, s->adc_voice);
s->adc_voice = NULL;
}
}
else {
if (s->dac_voice[i]) {
AUD_close_out (&s->card, s->dac_voice[i]);
s->dac_voice[i] = NULL;
}
}
}
ctl = s->ctl;
sctl = s->sctl;
s->ctl = 0;
s->sctl = 0;
es1370_update_voices (s, ctl, sctl);
return 0;
}
static const VMStateDescription vmstate_es1370 = {
.name = "es1370",
.version_id = 2,
.minimum_version_id = 2,
.post_load = es1370_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE (dev, ES1370State),
VMSTATE_STRUCT_ARRAY (chan, ES1370State, NB_CHANNELS, 2,
vmstate_es1370_channel, struct chan),
VMSTATE_UINT32 (ctl, ES1370State),
VMSTATE_UINT32 (status, ES1370State),
VMSTATE_UINT32 (mempage, ES1370State),
VMSTATE_UINT32 (codec, ES1370State),
VMSTATE_UINT32 (sctl, ES1370State),
VMSTATE_END_OF_LIST ()
}
};
static void es1370_on_reset(DeviceState *dev)
{
ES1370State *s = container_of(dev, ES1370State, dev.qdev);
es1370_reset (s);
}
static void es1370_realize(PCIDevice *dev, Error **errp)
{
ES1370State *s = ES1370(dev);
uint8_t *c = s->dev.config;
c[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_SLOW >> 8;
#if 0
c[PCI_CAPABILITY_LIST] = 0xdc;
c[PCI_INTERRUPT_LINE] = 10;
c[0xdc] = 0x00;
#endif
c[PCI_INTERRUPT_PIN] = 1;
c[PCI_MIN_GNT] = 0x0c;
c[PCI_MAX_LAT] = 0x80;
memory_region_init_io (&s->io, OBJECT(s), &es1370_io_ops, s, "es1370", 256);
pci_register_bar (&s->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io);
AUD_register_card ("es1370", &s->card);
es1370_reset (s);
}
static void es1370_exit(PCIDevice *dev)
{
ES1370State *s = ES1370(dev);
int i;
for (i = 0; i < 2; ++i) {
AUD_close_out(&s->card, s->dac_voice[i]);
}
AUD_close_in(&s->card, s->adc_voice);
AUD_remove_card(&s->card);
}
static Property es1370_properties[] = {
DEFINE_AUDIO_PROPERTIES(ES1370State, card),
DEFINE_PROP_END_OF_LIST(),
};
static void es1370_class_init (ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS (klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS (klass);
k->realize = es1370_realize;
k->exit = es1370_exit;
k->vendor_id = PCI_VENDOR_ID_ENSONIQ;
k->device_id = PCI_DEVICE_ID_ENSONIQ_ES1370;
k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
k->subsystem_vendor_id = 0x4942;
k->subsystem_id = 0x4c4c;
set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
dc->desc = "ENSONIQ AudioPCI ES1370";
dc->vmsd = &vmstate_es1370;
dc->reset = es1370_on_reset;
device_class_set_props(dc, es1370_properties);
}
static const TypeInfo es1370_info = {
.name = TYPE_ES1370,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof (ES1370State),
.class_init = es1370_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ },
},
};
static void es1370_register_types (void)
{
type_register_static (&es1370_info);
deprecated_register_soundhw("es1370", "ENSONIQ AudioPCI ES1370",
0, TYPE_ES1370);
}
type_init (es1370_register_types)
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