/* $NetBSD: cs4280.c,v 1.77 2024/02/08 20:51:24 andvar Exp $ */
/*
* Copyright (c) 1999, 2000 Tatoku Ogaito. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Tatoku Ogaito
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Cirrus Logic CS4280 (and maybe CS461x) driver.
* Data sheets can be found
*
http://www.cirrus.com/ftp/pubs/4280.pdf
*
http://www.cirrus.com/ftp/pubs/4297.pdf
*
ftp://ftp.alsa-project.org/pub/manuals/cirrus/embedded_audio_spec.pdf
*
ftp://ftp.alsa-project.org/pub/manuals/cirrus/embedded_audio_spec.doc
*
* Note: CS4610/CS4611 + CS423x ISA codec should be worked with
* wss* at pnpbios?
* or
* sb* at pnpbios?
* Since I could not find any documents on handling ISA codec,
* clcs does not support those chips.
*/
/*
* TODO
* Joystick support
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cs4280.c,v 1.77 2024/02/08 20:51:24 andvar Exp $");
#include "midi.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/fcntl.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/audioio.h>
#include <sys/bus.h>
#include <sys/bswap.h>
#include <dev/audio/audio_if.h>
#include <dev/midi_if.h>
#include <dev/ic/ac97reg.h>
#include <dev/ic/ac97var.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/cs4280reg.h>
#include <dev/pci/cs4280_image.h>
#include <dev/pci/cs428xreg.h>
#include <dev/pci/cs428x.h>
#define BA1READ4(sc, r) bus_space_read_4((sc)->ba1t, (sc)->ba1h, (r))
#define BA1WRITE4(sc, r, x) bus_space_write_4((sc)->ba1t, (sc)->ba1h, (r), (x))
/* IF functions for audio driver */
static int cs4280_match(device_t, cfdata_t, void *);
static void cs4280_attach(device_t, device_t, void *);
static int cs4280_intr(void *);
static int cs4280_query_format(void *, audio_format_query_t *);
static int cs4280_set_format(void *, int,
const audio_params_t *, const audio_params_t *,
audio_filter_reg_t *, audio_filter_reg_t *);
static int cs4280_halt_output(void *);
static int cs4280_halt_input(void *);
static int cs4280_getdev(void *, struct audio_device *);
static int cs4280_trigger_output(void *, void *, void *, int, void (*)(void *),
void *, const audio_params_t *);
static int cs4280_trigger_input(void *, void *, void *, int, void (*)(void *),
void *, const audio_params_t *);
static int cs4280_read_codec(void *, u_int8_t, u_int16_t *);
static int cs4280_write_codec(void *, u_int8_t, u_int16_t);
#if 0
static int cs4280_reset_codec(void *);
#endif
static enum ac97_host_flags cs4280_flags_codec(void *);
static bool cs4280_resume(device_t, const pmf_qual_t *);
static bool cs4280_suspend(device_t, const pmf_qual_t *);
/* Internal functions */
static const struct cs4280_card_t * cs4280_identify_card(
const struct pci_attach_args *);
static int cs4280_piix4_match(const struct pci_attach_args *);
static void cs4280_clkrun_hack(struct cs428x_softc *, int);
static void cs4280_clkrun_hack_init(struct cs428x_softc *);
static void cs4280_set_adc_rate(struct cs428x_softc *, int );
static void cs4280_set_dac_rate(struct cs428x_softc *, int );
static int cs4280_download(struct cs428x_softc *, const uint32_t *, uint32_t,
uint32_t);
static int cs4280_download_image(struct cs428x_softc *);
static void cs4280_reset(void *);
static int cs4280_init(struct cs428x_softc *, int);
static void cs4280_clear_fifos(struct cs428x_softc *);
#if CS4280_DEBUG > 10
/* Thease two function is only for checking image loading is succeeded or not. */
static int cs4280_check_images(struct cs428x_softc *);
static int cs4280_checkimage(struct cs428x_softc *, uint32_t *, uint32_t,
uint32_t);
#endif
/* Special cards */
struct cs4280_card_t
{
pcireg_t id;
enum cs428x_flags flags;
};
#define _card(vend, prod, flags) \
{PCI_ID_CODE(vend, prod), flags}
static const struct cs4280_card_t cs4280_cards[] = {
#if 0 /* untested, from ALSA driver */
_card(PCI_VENDOR_MITAC, PCI_PRODUCT_MITAC_MI6020,
CS428X_FLAG_INVAC97EAMP),
#endif
_card(PCI_VENDOR_TURTLE_BEACH, PCI_PRODUCT_TURTLE_BEACH_SANTA_CRUZ,
CS428X_FLAG_INVAC97EAMP),
_card(PCI_VENDOR_IBM, PCI_PRODUCT_IBM_TPAUDIO,
CS428X_FLAG_CLKRUNHACK)
};
#undef _card
#define CS4280_CARDS_SIZE (sizeof(cs4280_cards)/sizeof(cs4280_cards[0]))
static const struct audio_hw_if cs4280_hw_if = {
.query_format = cs4280_query_format,
.set_format = cs4280_set_format,
.round_blocksize = cs428x_round_blocksize,
.halt_output = cs4280_halt_output,
.halt_input = cs4280_halt_input,
.getdev = cs4280_getdev,
.set_port = cs428x_mixer_set_port,
.get_port = cs428x_mixer_get_port,
.query_devinfo = cs428x_query_devinfo,
.allocm = cs428x_malloc,
.freem = cs428x_free,
.round_buffersize = cs428x_round_buffersize,
.get_props = cs428x_get_props,
.trigger_output = cs4280_trigger_output,
.trigger_input = cs4280_trigger_input,
.get_locks = cs428x_get_locks,
};
#if NMIDI > 0
/* Midi Interface */
static int cs4280_midi_open(void *, int, void (*)(void *, int),
void (*)(void *), void *);
static void cs4280_midi_close(void*);
static int cs4280_midi_output(void *, int);
static void cs4280_midi_getinfo(void *, struct midi_info *);
static const struct midi_hw_if cs4280_midi_hw_if = {
cs4280_midi_open,
cs4280_midi_close,
cs4280_midi_output,
cs4280_midi_getinfo,
0,
cs428x_get_locks,
};
#endif
CFATTACH_DECL_NEW(clcs, sizeof(struct cs428x_softc),
cs4280_match, cs4280_attach, NULL, NULL);
static struct audio_device cs4280_device = {
"CS4280",
"",
"cs4280"
};
/*
* XXX recording must be 16bit stereo and sample rate range from
* 11025Hz to 48000Hz. However, it looks like to work with 8000Hz,
* although data sheets say lower limit is 11025Hz.
* XXX The combination of available formats is complicated, so I use
* a common format only. Please fix it if not suitable.
*/
static const struct audio_format cs4280_formats[] = {
{
.mode = AUMODE_PLAY | AUMODE_RECORD,
.encoding = AUDIO_ENCODING_SLINEAR_LE,
.validbits = 16,
.precision = 16,
.channels = 2,
.channel_mask = AUFMT_STEREO,
.frequency_type = 0,
.frequency = { 8000, 48000 },
}
};
#define CS4280_NFORMATS __arraycount(cs4280_formats)
static int
cs4280_match(device_t parent, cfdata_t match, void *aux)
{
struct pci_attach_args *pa;
pa = (struct pci_attach_args *)aux;
if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_CIRRUS)
return 0;
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CS4280
#if 0 /* I can't confirm */
|| PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CS4610
#endif
)
return 1;
return 0;
}
static void
cs4280_attach(device_t parent, device_t self, void *aux)
{
struct cs428x_softc *sc;
struct pci_attach_args *pa;
pci_chipset_tag_t pc;
const struct cs4280_card_t *cs_card;
char const *intrstr;
pcireg_t reg;
uint32_t mem;
int error;
char vendor[PCI_VENDORSTR_LEN];
char product[PCI_PRODUCTSTR_LEN];
char intrbuf[PCI_INTRSTR_LEN];
sc = device_private(self);
sc->sc_dev = self;
pa = (struct pci_attach_args *)aux;
pc = pa->pa_pc;
pci_aprint_devinfo(pa, "Audio controller");
cs_card = cs4280_identify_card(pa);
if (cs_card != NULL) {
pci_findvendor(vendor, sizeof(vendor), PCI_VENDOR(cs_card->id));
pci_findproduct(product, sizeof(product),
PCI_VENDOR(cs_card->id), PCI_PRODUCT(cs_card->id));
aprint_normal_dev(sc->sc_dev, "%s %s\n", vendor, product);
sc->sc_flags = cs_card->flags;
} else {
sc->sc_flags = CS428X_FLAG_NONE;
}
sc->sc_pc = pa->pa_pc;
sc->sc_pt = pa->pa_tag;
/* Map I/O register */
if (pci_mapreg_map(pa, PCI_BA0,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->ba0t, &sc->ba0h, NULL, NULL)) {
aprint_error_dev(sc->sc_dev, "can't map BA0 space\n");
return;
}
if (pci_mapreg_map(pa, PCI_BA1,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->ba1t, &sc->ba1h, NULL, NULL)) {
aprint_error_dev(sc->sc_dev, "can't map BA1 space\n");
return;
}
sc->sc_dmatag = pa->pa_dmat;
/* power up chip */
if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self,
pci_activate_null)) && error != EOPNOTSUPP) {
aprint_error_dev(sc->sc_dev, "cannot activate %d\n", error);
return;
}
/* Enable the device (set bus master flag) */
reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
reg | PCI_COMMAND_MASTER_ENABLE);
/* LATENCY_TIMER setting */
mem = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);
if ( PCI_LATTIMER(mem) < 32 ) {
mem &= 0xffff00ff;
mem |= 0x00002000;
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, mem);
}
/* CLKRUN hack initialization */
cs4280_clkrun_hack_init(sc);
/* Map and establish the interrupt. */
if (pci_intr_map(pa, &sc->intrh)) {
aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n");
return;
}
intrstr = pci_intr_string(pc, sc->intrh, intrbuf, sizeof(intrbuf));
mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO);
sc->sc_ih = pci_intr_establish_xname(sc->sc_pc, sc->intrh, IPL_AUDIO,
cs4280_intr, sc, device_xname(self));
if (sc->sc_ih == NULL) {
aprint_error_dev(sc->sc_dev, "couldn't establish interrupt");
if (intrstr != NULL)
aprint_error(" at %s", intrstr);
aprint_error("\n");
mutex_destroy(&sc->sc_lock);
mutex_destroy(&sc->sc_intr_lock);
return;
}
aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr);
/* Initialization */
if(cs4280_init(sc, 1) != 0) {
mutex_destroy(&sc->sc_lock);
mutex_destroy(&sc->sc_intr_lock);
return;
}
sc->type = TYPE_CS4280;
/* setup buffer related parameters */
sc->dma_size = CS4280_DCHUNK;
sc->dma_align = CS4280_DALIGN;
sc->hw_blocksize = CS4280_ICHUNK;
/* AC 97 attachment */
sc->host_if.arg = sc;
sc->host_if.attach = cs428x_attach_codec;
sc->host_if.read = cs4280_read_codec;
sc->host_if.write = cs4280_write_codec;
#if 0
sc->host_if.reset = cs4280_reset_codec;
#else
sc->host_if.reset = NULL;
#endif
sc->host_if.flags = cs4280_flags_codec;
if (ac97_attach(&sc->host_if, self, &sc->sc_lock) != 0) {
aprint_error_dev(sc->sc_dev, "ac97_attach failed\n");
return;
}
audio_attach_mi(&cs4280_hw_if, sc, sc->sc_dev);
#if NMIDI > 0
midi_attach_mi(&cs4280_midi_hw_if, sc, sc->sc_dev);
#endif
if (!pmf_device_register(self, cs4280_suspend, cs4280_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
}
/* Interrupt handling function */
static int
cs4280_intr(void *p)
{
/*
* XXX
*
* Since CS4280 has only 4kB DMA buffer and
* interrupt occurs every 2kB block, I create dummy buffer
* which returns to audio driver and actual DMA buffer
* using in DMA transfer.
*
*
* ring buffer in audio.c is pointed by BUFADDR
* <------ ring buffer size == 64kB ------>
* <-----> blksize == 2048*(sc->sc_[pr]count) kB
* |= = = =|= = = =|= = = =|= = = =|= = = =|
* | | | | | | <- call audio_intp every
* sc->sc_[pr]_count time.
*
* actual DMA buffer is pointed by KERNADDR
* <-> DMA buffer size = 4kB
* |= =|
*
*
*/
struct cs428x_softc *sc;
uint32_t intr, mem;
char * empty_dma;
int handled;
sc = p;
handled = 0;
mutex_spin_enter(&sc->sc_intr_lock);
/* grab interrupt register then clear it */
intr = BA0READ4(sc, CS4280_HISR);
BA0WRITE4(sc, CS4280_HICR, HICR_CHGM | HICR_IEV);
/* not for us ? */
if ((intr & HISR_INTENA) == 0) {
mutex_spin_exit(&sc->sc_intr_lock);
return 0;
}
/* Playback Interrupt */
if (intr & HISR_PINT) {
handled = 1;
mem = BA1READ4(sc, CS4280_PFIE);
BA1WRITE4(sc, CS4280_PFIE, (mem & ~PFIE_PI_MASK) | PFIE_PI_DISABLE);
if (sc->sc_prun) {
if ((sc->sc_pi%sc->sc_pcount) == 0)
sc->sc_pintr(sc->sc_parg);
/* copy buffer */
++sc->sc_pi;
empty_dma = sc->sc_pdma->addr;
if (sc->sc_pi&1)
empty_dma += sc->hw_blocksize;
memcpy(empty_dma, sc->sc_pn, sc->hw_blocksize);
sc->sc_pn += sc->hw_blocksize;
if (sc->sc_pn >= sc->sc_pe)
sc->sc_pn = sc->sc_ps;
} else {
aprint_error_dev(sc->sc_dev, "unexpected play intr\n");
}
BA1WRITE4(sc, CS4280_PFIE, mem);
}
/* Capture Interrupt */
if (intr & HISR_CINT) {
handled = 1;
mem = BA1READ4(sc, CS4280_CIE);
BA1WRITE4(sc, CS4280_CIE, (mem & ~CIE_CI_MASK) | CIE_CI_DISABLE);
if (sc->sc_rrun) {
++sc->sc_ri;
empty_dma = sc->sc_rdma->addr;
if ((sc->sc_ri&1) == 0)
empty_dma += sc->hw_blocksize;
/* just copy it */
memcpy(sc->sc_rn, empty_dma, sc->hw_blocksize);
sc->sc_rn += sc->hw_blocksize;
if (sc->sc_rn >= sc->sc_re)
sc->sc_rn = sc->sc_rs;
}
BA1WRITE4(sc, CS4280_CIE, mem);
if (sc->sc_rrun) {
if ((sc->sc_ri%(sc->sc_rcount)) == 0)
sc->sc_rintr(sc->sc_rarg);
} else {
aprint_error_dev(sc->sc_dev,
"unexpected record intr\n");
}
}
#if NMIDI > 0
/* Midi port Interrupt */
if (intr & HISR_MIDI) {
int data;
handled = 1;
DPRINTF(("i: %d: ",
BA0READ4(sc, CS4280_MIDSR)));
/* Read the received data */
while ((sc->sc_iintr != NULL) &&
((BA0READ4(sc, CS4280_MIDSR) & MIDSR_RBE) == 0)) {
data = BA0READ4(sc, CS4280_MIDRP) & MIDRP_MASK;
DPRINTF(("r:%x\n",data));
sc->sc_iintr(sc->sc_arg, data);
}
/* Write the data */
#if 1
/* XXX:
* It seems "Transmit Buffer Full" never activate until EOI
* is deliverd. Shall I throw EOI top of this routine ?
*/
if ((BA0READ4(sc, CS4280_MIDSR) & MIDSR_TBF) == 0) {
DPRINTF(("w: "));
if (sc->sc_ointr != NULL)
sc->sc_ointr(sc->sc_arg);
}
#else
while ((sc->sc_ointr != NULL) &&
((BA0READ4(sc, CS4280_MIDSR) & MIDSR_TBF) == 0)) {
DPRINTF(("w: "));
sc->sc_ointr(sc->sc_arg);
}
#endif
DPRINTF(("\n"));
}
#endif
mutex_spin_exit(&sc->sc_intr_lock);
return handled;
}
static int
cs4280_query_format(void *addr, audio_format_query_t *afp)
{
return audio_query_format(cs4280_formats, CS4280_NFORMATS, afp);
}
static int
cs4280_set_format(void *addr, int setmode,
const audio_params_t *play, const audio_params_t *rec,
audio_filter_reg_t *pfil, audio_filter_reg_t *rfil)
{
struct cs428x_softc *sc;
sc = addr;
/* set sample rate */
cs4280_set_dac_rate(sc, play->sample_rate);
cs4280_set_adc_rate(sc, rec->sample_rate);
return 0;
}
static int
cs4280_halt_output(void *addr)
{
struct cs428x_softc *sc;
uint32_t mem;
sc = addr;
mem = BA1READ4(sc, CS4280_PCTL);
BA1WRITE4(sc, CS4280_PCTL, mem & ~PCTL_MASK);
sc->sc_prun = 0;
cs4280_clkrun_hack(sc, -1);
return 0;
}
static int
cs4280_halt_input(void *addr)
{
struct cs428x_softc *sc;
uint32_t mem;
sc = addr;
mem = BA1READ4(sc, CS4280_CCTL);
BA1WRITE4(sc, CS4280_CCTL, mem & ~CCTL_MASK);
sc->sc_rrun = 0;
cs4280_clkrun_hack(sc, -1);
return 0;
}
static int
cs4280_getdev(void *addr, struct audio_device *retp)
{
*retp = cs4280_device;
return 0;
}
static int
cs4280_trigger_output(void *addr, void *start, void *end, int blksize,
void (*intr)(void *), void *arg,
const audio_params_t *param)
{
struct cs428x_softc *sc;
uint32_t pfie, pctl, pdtc;
struct cs428x_dma *p;
sc = addr;
#ifdef DIAGNOSTIC
if (sc->sc_prun)
printf("cs4280_trigger_output: already running\n");
#endif
sc->sc_prun = 1;
cs4280_clkrun_hack(sc, 1);
DPRINTF(("cs4280_trigger_output: sc=%p start=%p end=%p "
"blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
sc->sc_pintr = intr;
sc->sc_parg = arg;
/* stop playback DMA */
BA1WRITE4(sc, CS4280_PCTL, BA1READ4(sc, CS4280_PCTL) & ~PCTL_MASK);
/* setup PDTC */
pdtc = BA1READ4(sc, CS4280_PDTC);
pdtc &= ~PDTC_MASK;
pdtc |= CS4280_MK_PDTC(param->precision * param->channels);
BA1WRITE4(sc, CS4280_PDTC, pdtc);
DPRINTF(("param: precision=%d channels=%d encoding=%d\n",
param->precision, param->channels, param->encoding));
for (p = sc->sc_dmas; p != NULL && BUFADDR(p) != start; p = p->next)
continue;
if (p == NULL) {
printf("cs4280_trigger_output: bad addr %p\n", start);
return EINVAL;
}
if (DMAADDR(p) % sc->dma_align != 0 ) {
printf("cs4280_trigger_output: DMAADDR(p)=0x%lx does not start"
"4kB align\n", (ulong)DMAADDR(p));
return EINVAL;
}
sc->sc_pcount = blksize / sc->hw_blocksize; /* sc->hw_blocksize is fixed hardware blksize*/
sc->sc_ps = (char *)start;
sc->sc_pe = (char *)end;
sc->sc_pdma = p;
sc->sc_pbuf = KERNADDR(p);
sc->sc_pi = 0;
sc->sc_pn = sc->sc_ps;
if (blksize >= sc->dma_size) {
sc->sc_pn = sc->sc_ps + sc->dma_size;
memcpy(sc->sc_pbuf, start, sc->dma_size);
++sc->sc_pi;
} else {
sc->sc_pn = sc->sc_ps + sc->hw_blocksize;
memcpy(sc->sc_pbuf, start, sc->hw_blocksize);
}
/* initiate playback DMA */
BA1WRITE4(sc, CS4280_PBA, DMAADDR(p));
/* set PFIE */
pfie = BA1READ4(sc, CS4280_PFIE) & ~PFIE_MASK;
if (param->encoding == AUDIO_ENCODING_SLINEAR_BE)
pfie |= PFIE_SWAPPED;
BA1WRITE4(sc, CS4280_PFIE, pfie | PFIE_PI_ENABLE);
sc->sc_prate = param->sample_rate;
cs4280_set_dac_rate(sc, param->sample_rate);
pctl = BA1READ4(sc, CS4280_PCTL) & ~PCTL_MASK;
pctl |= sc->pctl;
BA1WRITE4(sc, CS4280_PCTL, pctl);
return 0;
}
static int
cs4280_trigger_input(void *addr, void *start, void *end, int blksize,
void (*intr)(void *), void *arg,
const audio_params_t *param)
{
struct cs428x_softc *sc;
uint32_t cctl, cie;
struct cs428x_dma *p;
sc = addr;
#ifdef DIAGNOSTIC
if (sc->sc_rrun)
printf("cs4280_trigger_input: already running\n");
#endif
sc->sc_rrun = 1;
cs4280_clkrun_hack(sc, 1);
DPRINTF(("cs4280_trigger_input: sc=%p start=%p end=%p "
"blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg));
sc->sc_rintr = intr;
sc->sc_rarg = arg;
/* stop capture DMA */
BA1WRITE4(sc, CS4280_CCTL, BA1READ4(sc, CS4280_CCTL) & ~CCTL_MASK);
for (p = sc->sc_dmas; p && BUFADDR(p) != start; p = p->next)
continue;
if (p == NULL) {
printf("cs4280_trigger_input: bad addr %p\n", start);
return EINVAL;
}
if (DMAADDR(p) % sc->dma_align != 0) {
printf("cs4280_trigger_input: DMAADDR(p)=0x%lx does not start"
"4kB align\n", (ulong)DMAADDR(p));
return EINVAL;
}
sc->sc_rcount = blksize / sc->hw_blocksize; /* sc->hw_blocksize is fixed hardware blksize*/
sc->sc_rs = (char *)start;
sc->sc_re = (char *)end;
sc->sc_rdma = p;
sc->sc_rbuf = KERNADDR(p);
sc->sc_ri = 0;
sc->sc_rn = sc->sc_rs;
/* initiate capture DMA */
BA1WRITE4(sc, CS4280_CBA, DMAADDR(p));
/* set CIE */
cie = BA1READ4(sc, CS4280_CIE) & ~CIE_CI_MASK;
BA1WRITE4(sc, CS4280_CIE, cie | CIE_CI_ENABLE);
sc->sc_rrate = param->sample_rate;
cs4280_set_adc_rate(sc, param->sample_rate);
cctl = BA1READ4(sc, CS4280_CCTL) & ~CCTL_MASK;
cctl |= sc->cctl;
BA1WRITE4(sc, CS4280_CCTL, cctl);
return 0;
}
static bool
cs4280_suspend(device_t dv, const pmf_qual_t *qual)
{
struct cs428x_softc *sc = device_private(dv);
mutex_exit(&sc->sc_lock);
mutex_spin_enter(&sc->sc_intr_lock);
if (sc->sc_prun) {
sc->sc_suspend_state.cs4280.pctl = BA1READ4(sc, CS4280_PCTL);
sc->sc_suspend_state.cs4280.pfie = BA1READ4(sc, CS4280_PFIE);
sc->sc_suspend_state.cs4280.pba = BA1READ4(sc, CS4280_PBA);
sc->sc_suspend_state.cs4280.pdtc = BA1READ4(sc, CS4280_PDTC);
DPRINTF(("pctl=0x%08x pfie=0x%08x pba=0x%08x pdtc=0x%08x\n",
sc->sc_suspend_state.cs4280.pctl,
sc->sc_suspend_state.cs4280.pfie,
sc->sc_suspend_state.cs4280.pba,
sc->sc_suspend_state.cs4280.pdtc));
}
/* save current capture status */
if (sc->sc_rrun) {
sc->sc_suspend_state.cs4280.cctl = BA1READ4(sc, CS4280_CCTL);
sc->sc_suspend_state.cs4280.cie = BA1READ4(sc, CS4280_CIE);
sc->sc_suspend_state.cs4280.cba = BA1READ4(sc, CS4280_CBA);
DPRINTF(("cctl=0x%08x cie=0x%08x cba=0x%08x\n",
sc->sc_suspend_state.cs4280.cctl,
sc->sc_suspend_state.cs4280.cie,
sc->sc_suspend_state.cs4280.cba));
}
/* Stop DMA */
BA1WRITE4(sc, CS4280_PCTL, sc->sc_suspend_state.cs4280.pctl & ~PCTL_MASK);
BA1WRITE4(sc, CS4280_CCTL, BA1READ4(sc, CS4280_CCTL) & ~CCTL_MASK);
mutex_spin_exit(&sc->sc_intr_lock);
mutex_exit(&sc->sc_lock);
return true;
}
static bool
cs4280_resume(device_t dv, const pmf_qual_t *qual)
{
struct cs428x_softc *sc = device_private(dv);
mutex_exit(&sc->sc_lock);
mutex_spin_enter(&sc->sc_intr_lock);
cs4280_init(sc, 0);
#if 0
cs4280_reset_codec(sc);
#endif
/* restore DMA related status */
if(sc->sc_prun) {
DPRINTF(("pctl=0x%08x pfie=0x%08x pba=0x%08x pdtc=0x%08x\n",
sc->sc_suspend_state.cs4280.pctl,
sc->sc_suspend_state.cs4280.pfie,
sc->sc_suspend_state.cs4280.pba,
sc->sc_suspend_state.cs4280.pdtc));
cs4280_set_dac_rate(sc, sc->sc_prate);
BA1WRITE4(sc, CS4280_PDTC, sc->sc_suspend_state.cs4280.pdtc);
BA1WRITE4(sc, CS4280_PBA, sc->sc_suspend_state.cs4280.pba);
BA1WRITE4(sc, CS4280_PFIE, sc->sc_suspend_state.cs4280.pfie);
BA1WRITE4(sc, CS4280_PCTL, sc->sc_suspend_state.cs4280.pctl);
}
if (sc->sc_rrun) {
DPRINTF(("cctl=0x%08x cie=0x%08x cba=0x%08x\n",
sc->sc_suspend_state.cs4280.cctl,
sc->sc_suspend_state.cs4280.cie,
sc->sc_suspend_state.cs4280.cba));
cs4280_set_adc_rate(sc, sc->sc_rrate);
BA1WRITE4(sc, CS4280_CBA, sc->sc_suspend_state.cs4280.cba);
BA1WRITE4(sc, CS4280_CIE, sc->sc_suspend_state.cs4280.cie);
BA1WRITE4(sc, CS4280_CCTL, sc->sc_suspend_state.cs4280.cctl);
}
mutex_spin_exit(&sc->sc_intr_lock);
/* restore ac97 registers */
(*sc->codec_if->vtbl->restore_ports)(sc->codec_if);
mutex_exit(&sc->sc_lock);
return true;
}
static int
cs4280_read_codec(void *addr, u_int8_t reg, u_int16_t *result)
{
struct cs428x_softc *sc = addr;
int rv;
cs4280_clkrun_hack(sc, 1);
rv = cs428x_read_codec(addr, reg, result);
cs4280_clkrun_hack(sc, -1);
return rv;
}
static int
cs4280_write_codec(void *addr, u_int8_t reg, u_int16_t data)
{
struct cs428x_softc *sc = addr;
int rv;
cs4280_clkrun_hack(sc, 1);
rv = cs428x_write_codec(addr, reg, data);
cs4280_clkrun_hack(sc, -1);
return rv;
}
#if 0 /* XXX buggy and not required */
/* control AC97 codec */
static int
cs4280_reset_codec(void *addr)
{
struct cs428x_softc *sc;
int n;
sc = addr;
/* Reset codec */
BA0WRITE4(sc, CS428X_ACCTL, 0);
delay(100); /* delay 100us */
BA0WRITE4(sc, CS428X_ACCTL, ACCTL_RSTN);
/*
* It looks like we do the following procedure, too
*/
/* Enable AC-link sync generation */
BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
delay(50*1000); /* XXX delay 50ms */
/* Assert valid frame signal */
BA0WRITE4(sc, CS428X_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
/* Wait for valid AC97 input slot */
n = 0;
while ((BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) !=
(ACISV_ISV3 | ACISV_ISV4)) {
delay(1000);
if (++n > 1000) {
printf("reset_codec: AC97 inputs slot ready timeout\n");
return ETIMEDOUT;
}
}
return 0;
}
#endif
static enum ac97_host_flags
cs4280_flags_codec(void *addr)
{
struct cs428x_softc *sc;
sc = addr;
if (sc->sc_flags & CS428X_FLAG_INVAC97EAMP)
return AC97_HOST_INVERTED_EAMP;
return 0;
}
/* Internal functions */
static const struct cs4280_card_t *
cs4280_identify_card(const struct pci_attach_args *pa)
{
pcireg_t idreg;
u_int16_t i;
idreg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
for (i = 0; i < CS4280_CARDS_SIZE; i++) {
if (idreg == cs4280_cards[i].id)
return &cs4280_cards[i];
}
return NULL;
}
static int
cs4280_piix4_match(const struct pci_attach_args *pa)
{
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_82371AB_PMC) {
return 1;
}
return 0;
}
static void
cs4280_clkrun_hack(struct cs428x_softc *sc, int change)
{
uint16_t control, val;
if (!(sc->sc_flags & CS428X_FLAG_CLKRUNHACK))
return;
sc->sc_active += change;
val = control = bus_space_read_2(sc->sc_pm_iot, sc->sc_pm_ioh, 0x10);
if (!sc->sc_active)
val |= 0x2000;
else
val &= ~0x2000;
if (val != control)
bus_space_write_2(sc->sc_pm_iot, sc->sc_pm_ioh, 0x10, val);
}
static void
cs4280_clkrun_hack_init(struct cs428x_softc *sc)
{
struct pci_attach_args smbuspa;
uint16_t reg;
pcireg_t port;
if (!(sc->sc_flags & CS428X_FLAG_CLKRUNHACK))
return;
if (pci_find_device(&smbuspa, cs4280_piix4_match)) {
sc->sc_active = 0;
aprint_normal_dev(sc->sc_dev, "enabling CLKRUN hack\n");
reg = pci_conf_read(smbuspa.pa_pc, smbuspa.pa_tag, 0x40);
port = reg & 0xffc0;
aprint_normal_dev(sc->sc_dev, "power management port 0x%x\n",
port);
sc->sc_pm_iot = smbuspa.pa_iot;
if (bus_space_map(sc->sc_pm_iot, port, 0x20 /* XXX */, 0,
&sc->sc_pm_ioh) == 0)
return;
}
/* handle error */
sc->sc_flags &= ~CS428X_FLAG_CLKRUNHACK;
aprint_normal_dev(sc->sc_dev, "disabling CLKRUN hack\n");
}
static void
cs4280_set_adc_rate(struct cs428x_softc *sc, int rate)
{
/* calculate capture rate:
*
* capture_coefficient_increment = -round(rate*128*65536/48000;
* capture_phase_increment = floor(48000*65536*1024/rate);
* cx = round(48000*65536*1024 - capture_phase_increment*rate);
* cy = floor(cx/200);
* capture_sample_rate_correction = cx - 200*cy;
* capture_delay = ceil(24*48000/rate);
* capture_num_triplets = floor(65536*rate/24000);
* capture_group_length = 24000/GCD(rate, 24000);
* where GCD means "Greatest Common Divisor".
*
* capture_coefficient_increment, capture_phase_increment and
* capture_num_triplets are 32-bit signed quantities.
* capture_sample_rate_correction and capture_group_length are
* 16-bit signed quantities.
* capture_delay is a 14-bit unsigned quantity.
*/
uint32_t cci, cpi, cnt, cx, cy, tmp1;
uint16_t csrc, cgl, cdlay;
/* XXX
* Even though, embedded_audio_spec says capture rate range 11025 to
* 48000, dhwiface.cpp says,
*
* "We can only decimate by up to a factor of 1/9th the hardware rate.
* Return an error if an attempt is made to stray outside that limit."
*
* so assume range as 48000/9 to 48000
*/
if (rate < 8000)
rate = 8000;
if (rate > 48000)
rate = 48000;
cx = rate << 16;
cci = cx / 48000;
cx -= cci * 48000;
cx <<= 7;
cci <<= 7;
cci += cx / 48000;
cci = - cci;
cx = 48000 << 16;
cpi = cx / rate;
cx -= cpi * rate;
cx <<= 10;
cpi <<= 10;
cy = cx / rate;
cpi += cy;
cx -= cy * rate;
cy = cx / 200;
csrc = cx - 200*cy;
cdlay = ((48000 * 24) + rate - 1) / rate;
#if 0
cdlay &= 0x3fff; /* make sure cdlay is 14-bit */
#endif
cnt = rate << 16;
cnt /= 24000;
cgl = 1;
for (tmp1 = 2; tmp1 <= 64; tmp1 *= 2) {
if (((rate / tmp1) * tmp1) != rate)
cgl *= 2;
}
if (((rate / 3) * 3) != rate)
cgl *= 3;
for (tmp1 = 5; tmp1 <= 125; tmp1 *= 5) {
if (((rate / tmp1) * tmp1) != rate)
cgl *= 5;
}
#if 0
/* XXX what manual says */
tmp1 = BA1READ4(sc, CS4280_CSRC) & ~CSRC_MASK;
tmp1 |= csrc<<16;
BA1WRITE4(sc, CS4280_CSRC, tmp1);
#else
/* suggested by cs461x.c (ALSA driver) */
BA1WRITE4(sc, CS4280_CSRC, CS4280_MK_CSRC(csrc, cy));
#endif
#if 0
/* I am confused. The sample rate calculation section says
* cci *is* 32-bit signed quantity but in the parameter description
* section, CCI only assigned 16bit.
* I believe size of the variable.
*/
tmp1 = BA1READ4(sc, CS4280_CCI) & ~CCI_MASK;
tmp1 |= cci<<16;
BA1WRITE4(sc, CS4280_CCI, tmp1);
#else
BA1WRITE4(sc, CS4280_CCI, cci);
#endif
tmp1 = BA1READ4(sc, CS4280_CD) & ~CD_MASK;
tmp1 |= cdlay <<18;
BA1WRITE4(sc, CS4280_CD, tmp1);
BA1WRITE4(sc, CS4280_CPI, cpi);
tmp1 = BA1READ4(sc, CS4280_CGL) & ~CGL_MASK;
tmp1 |= cgl;
BA1WRITE4(sc, CS4280_CGL, tmp1);
BA1WRITE4(sc, CS4280_CNT, cnt);
tmp1 = BA1READ4(sc, CS4280_CGC) & ~CGC_MASK;
tmp1 |= cgl;
BA1WRITE4(sc, CS4280_CGC, tmp1);
}
static void
cs4280_set_dac_rate(struct cs428x_softc *sc, int rate)
{
/*
* playback rate may range from 8000Hz to 48000Hz
*
* play_phase_increment = floor(rate*65536*1024/48000)
* px = round(rate*65536*1024 - play_phase_increment*48000)
* py=floor(px/200)
* play_sample_rate_correction = px - 200*py
*
* play_phase_increment is a 32bit signed quantity.
* play_sample_rate_correction is a 16bit signed quantity.
*/
int32_t ppi;
int16_t psrc;
uint32_t px, py;
if (rate < 8000)
rate = 8000;
if (rate > 48000)
rate = 48000;
px = rate << 16;
ppi = px/48000;
px -= ppi*48000;
ppi <<= 10;
px <<= 10;
py = px / 48000;
ppi += py;
px -= py*48000;
py = px/200;
px -= py*200;
psrc = px;
#if 0
/* what manual says */
px = BA1READ4(sc, CS4280_PSRC) & ~PSRC_MASK;
BA1WRITE4(sc, CS4280_PSRC,
( ((psrc<<16) & PSRC_MASK) | px ));
#else
/* suggested by cs461x.c (ALSA driver) */
BA1WRITE4(sc, CS4280_PSRC, CS4280_MK_PSRC(psrc,py));
#endif
BA1WRITE4(sc, CS4280_PPI, ppi);
}
/* Download Processor Code and Data image */
static int
cs4280_download(struct cs428x_softc *sc, const uint32_t *src,
uint32_t offset, uint32_t len)
{
uint32_t ctr;
#if CS4280_DEBUG > 10
uint32_t con, data;
uint8_t c0, c1, c2, c3;
#endif
if ((offset & 3) || (len & 3))
return -1;
len /= sizeof(uint32_t);
for (ctr = 0; ctr < len; ctr++) {
/* XXX:
* I cannot confirm this is the right thing or not
* on BIG-ENDIAN machines.
*/
BA1WRITE4(sc, offset+ctr*4, htole32(*(src+ctr)));
#if CS4280_DEBUG > 10
data = htole32(*(src+ctr));
c0 = bus_space_read_1(sc->ba1t, sc->ba1h, offset+ctr*4+0);
c1 = bus_space_read_1(sc->ba1t, sc->ba1h, offset+ctr*4+1);
c2 = bus_space_read_1(sc->ba1t, sc->ba1h, offset+ctr*4+2);
c3 = bus_space_read_1(sc->ba1t, sc->ba1h, offset+ctr*4+3);
con = (c3 << 24) | (c2 << 16) | (c1 << 8) | c0;
if (data != con ) {
printf("0x%06x: write=0x%08x read=0x%08x\n",
offset+ctr*4, data, con);
return -1;
}
#endif
}
return 0;
}
static int
cs4280_download_image(struct cs428x_softc *sc)
{
int idx, err;
uint32_t offset = 0;
err = 0;
for (idx = 0; idx < BA1_MEMORY_COUNT; ++idx) {
err = cs4280_download(sc, &BA1Struct.map[offset],
BA1Struct.memory[idx].offset,
BA1Struct.memory[idx].size);
if (err != 0) {
aprint_error_dev(sc->sc_dev,
"load_image failed at %d\n", idx);
return -1;
}
offset += BA1Struct.memory[idx].size / sizeof(uint32_t);
}
return err;
}
/* Processor Soft Reset */
static void
cs4280_reset(void *sc_)
{
struct cs428x_softc *sc;
sc = sc_;
/* Set RSTSP bit in SPCR (also clear RUN, RUNFR, and DRQEN) */
BA1WRITE4(sc, CS4280_SPCR, SPCR_RSTSP);
delay(100);
/* Clear RSTSP bit in SPCR */
BA1WRITE4(sc, CS4280_SPCR, 0);
/* enable DMA request */
BA1WRITE4(sc, CS4280_SPCR, SPCR_DRQEN);
}
static int
cs4280_init(struct cs428x_softc *sc, int init)
{
int n;
uint32_t mem;
int rv;
rv = 1;
cs4280_clkrun_hack(sc, 1);
/* Start PLL out in known state */
BA0WRITE4(sc, CS4280_CLKCR1, 0);
/* Start serial ports out in known state */
BA0WRITE4(sc, CS4280_SERMC1, 0);
/* Specify type of CODEC */
/* XXX should not be here */
#define SERACC_CODEC_TYPE_1_03
#ifdef SERACC_CODEC_TYPE_1_03
BA0WRITE4(sc, CS4280_SERACC, SERACC_HSP | SERACC_CTYPE_1_03); /* AC 97 1.03 */
#else
BA0WRITE4(sc, CS4280_SERACC, SERACC_HSP | SERACC_CTYPE_2_0); /* AC 97 2.0 */
#endif
/* Reset codec */
BA0WRITE4(sc, CS428X_ACCTL, 0);
delay(100); /* delay 100us */
BA0WRITE4(sc, CS428X_ACCTL, ACCTL_RSTN);
/* Enable AC-link sync generation */
BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
delay(50*1000); /* delay 50ms */
/* Set the serial port timing configuration */
BA0WRITE4(sc, CS4280_SERMC1, SERMC1_PTC_AC97);
/* Setup clock control */
BA0WRITE4(sc, CS4280_PLLCC, PLLCC_CDR_STATE|PLLCC_LPF_STATE);
BA0WRITE4(sc, CS4280_PLLM, PLLM_STATE);
BA0WRITE4(sc, CS4280_CLKCR2, CLKCR2_PDIVS_8);
/* Power up the PLL */
BA0WRITE4(sc, CS4280_CLKCR1, CLKCR1_PLLP);
delay(50*1000); /* delay 50ms */
/* Turn on clock */
mem = BA0READ4(sc, CS4280_CLKCR1) | CLKCR1_SWCE;
BA0WRITE4(sc, CS4280_CLKCR1, mem);
/* Set the serial port FIFO pointer to the
* first sample in FIFO. (not documented) */
cs4280_clear_fifos(sc);
#if 0
/* Set the serial port FIFO pointer to the first sample in the FIFO */
BA0WRITE4(sc, CS4280_SERBSP, 0);
#endif
/* Configure the serial port */
BA0WRITE4(sc, CS4280_SERC1, SERC1_SO1EN | SERC1_SO1F_AC97);
BA0WRITE4(sc, CS4280_SERC2, SERC2_SI1EN | SERC2_SI1F_AC97);
BA0WRITE4(sc, CS4280_SERMC1, SERMC1_MSPE | SERMC1_PTC_AC97);
/* Wait for CODEC ready */
n = 0;
while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY) == 0) {
delay(125);
if (++n > 1000) {
aprint_error_dev(sc->sc_dev, "codec ready timeout\n");
goto exit;
}
}
/* Assert valid frame signal */
BA0WRITE4(sc, CS428X_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
/* Wait for valid AC97 input slot */
n = 0;
while ((BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) !=
(ACISV_ISV3 | ACISV_ISV4)) {
delay(1000);
if (++n > 1000) {
printf("AC97 inputs slot ready timeout\n");
goto exit;
}
}
/* Set AC97 output slot valid signals */
BA0WRITE4(sc, CS428X_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
/* reset the processor */
cs4280_reset(sc);
/* Download the image to the processor */
if (cs4280_download_image(sc) != 0) {
aprint_error_dev(sc->sc_dev, "image download error\n");
goto exit;
}
/* Save playback parameter and then write zero.
* this ensures that DMA doesn't immediately occur upon
* starting the processor core
*/
mem = BA1READ4(sc, CS4280_PCTL);
sc->pctl = mem & PCTL_MASK; /* save startup value */
BA1WRITE4(sc, CS4280_PCTL, mem & ~PCTL_MASK);
if (init != 0)
sc->sc_prun = 0;
/* Save capture parameter and then write zero.
* this ensures that DMA doesn't immediately occur upon
* starting the processor core
*/
mem = BA1READ4(sc, CS4280_CCTL);
sc->cctl = mem & CCTL_MASK; /* save startup value */
BA1WRITE4(sc, CS4280_CCTL, mem & ~CCTL_MASK);
if (init != 0)
sc->sc_rrun = 0;
/* Processor Startup Procedure */
BA1WRITE4(sc, CS4280_FRMT, FRMT_FTV);
BA1WRITE4(sc, CS4280_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
/* Monitor RUNFR bit in SPCR for 1 to 0 transition */
n = 0;
while (BA1READ4(sc, CS4280_SPCR) & SPCR_RUNFR) {
delay(10);
if (++n > 1000) {
printf("SPCR 1->0 transition timeout\n");
goto exit;
}
}
n = 0;
while (!(BA1READ4(sc, CS4280_SPCS) & SPCS_SPRUN)) {
delay(10);
if (++n > 1000) {
printf("SPCS 0->1 transition timeout\n");
goto exit;
}
}
/* Processor is now running !!! */
/* Setup volume */
BA1WRITE4(sc, CS4280_PVOL, 0x80008000);
BA1WRITE4(sc, CS4280_CVOL, 0x80008000);
/* Interrupt enable */
BA0WRITE4(sc, CS4280_HICR, HICR_IEV|HICR_CHGM);
/* playback interrupt enable */
mem = BA1READ4(sc, CS4280_PFIE) & ~PFIE_PI_MASK;
mem |= PFIE_PI_ENABLE;
BA1WRITE4(sc, CS4280_PFIE, mem);
/* capture interrupt enable */
mem = BA1READ4(sc, CS4280_CIE) & ~CIE_CI_MASK;
mem |= CIE_CI_ENABLE;
BA1WRITE4(sc, CS4280_CIE, mem);
#if NMIDI > 0
/* Reset midi port */
mem = BA0READ4(sc, CS4280_MIDCR) & ~MIDCR_MASK;
BA0WRITE4(sc, CS4280_MIDCR, mem | MIDCR_MRST);
DPRINTF(("midi reset: 0x%x\n", BA0READ4(sc, CS4280_MIDCR)));
/* midi interrupt enable */
mem |= MIDCR_TXE | MIDCR_RXE | MIDCR_RIE | MIDCR_TIE;
BA0WRITE4(sc, CS4280_MIDCR, mem);
#endif
rv = 0;
exit:
cs4280_clkrun_hack(sc, -1);
return rv;
}
static void
cs4280_clear_fifos(struct cs428x_softc *sc)
{
int pd, cnt, n;
uint32_t mem;
pd = 0;
/*
* If device power down, power up the device and keep power down
* state.
*/
mem = BA0READ4(sc, CS4280_CLKCR1);
if (!(mem & CLKCR1_SWCE)) {
printf("cs4280_clear_fifo: power down found.\n");
BA0WRITE4(sc, CS4280_CLKCR1, mem | CLKCR1_SWCE);
pd = 1;
}
BA0WRITE4(sc, CS4280_SERBWP, 0);
for (cnt = 0; cnt < 256; cnt++) {
n = 0;
while (BA0READ4(sc, CS4280_SERBST) & SERBST_WBSY) {
delay(1000);
if (++n > 1000) {
printf("clear_fifo: first timeout cnt=%d\n", cnt);
break;
}
}
BA0WRITE4(sc, CS4280_SERBAD, cnt);
BA0WRITE4(sc, CS4280_SERBCM, SERBCM_WRC);
}
if (pd)
BA0WRITE4(sc, CS4280_CLKCR1, mem);
}
#if NMIDI > 0
static int
cs4280_midi_open(void *addr, int flags, void (*iintr)(void *, int),
void (*ointr)(void *), void *arg)
{
struct cs428x_softc *sc;
uint32_t mem;
DPRINTF(("midi_open\n"));
sc = addr;
sc->sc_iintr = iintr;
sc->sc_ointr = ointr;
sc->sc_arg = arg;
/* midi interrupt enable */
mem = BA0READ4(sc, CS4280_MIDCR) & ~MIDCR_MASK;
mem |= MIDCR_TXE | MIDCR_RXE | MIDCR_RIE | MIDCR_TIE | MIDCR_MLB;
BA0WRITE4(sc, CS4280_MIDCR, mem);
#ifdef CS4280_DEBUG
if (mem != BA0READ4(sc, CS4280_MIDCR)) {
DPRINTF(("midi_open: MIDCR=%d\n", BA0READ4(sc, CS4280_MIDCR)));
return(EINVAL);
}
DPRINTF(("MIDCR=0x%x\n", BA0READ4(sc, CS4280_MIDCR)));
#endif
return 0;
}
static void
cs4280_midi_close(void *addr)
{
struct cs428x_softc *sc;
uint32_t mem;
DPRINTF(("midi_close\n"));
sc = addr;
/* give uart a chance to drain */
kpause("cs0clm", false, hz/10, &sc->sc_intr_lock);
mem = BA0READ4(sc, CS4280_MIDCR);
mem &= ~MIDCR_MASK;
BA0WRITE4(sc, CS4280_MIDCR, mem);
sc->sc_iintr = 0;
sc->sc_ointr = 0;
}
static int
cs4280_midi_output(void *addr, int d)
{
struct cs428x_softc *sc;
uint32_t mem;
int x;
sc = addr;
for (x = 0; x != MIDI_BUSY_WAIT; x++) {
if ((BA0READ4(sc, CS4280_MIDSR) & MIDSR_TBF) == 0) {
mem = BA0READ4(sc, CS4280_MIDWP) & ~MIDWP_MASK;
mem |= d & MIDWP_MASK;
DPRINTFN(5,("midi_output d=0x%08x",d));
BA0WRITE4(sc, CS4280_MIDWP, mem);
#ifdef DIAGNOSTIC
if (mem != BA0READ4(sc, CS4280_MIDWP)) {
DPRINTF(("Bad write data: %d %d",
mem, BA0READ4(sc, CS4280_MIDWP)));
return EIO;
}
#endif
return 0;
}
delay(MIDI_BUSY_DELAY);
}
return EIO;
}
static void
cs4280_midi_getinfo(void *addr, struct midi_info *mi)
{
mi->name = "CS4280 MIDI UART";
mi->props = MIDI_PROP_CAN_INPUT | MIDI_PROP_OUT_INTR;
}
#endif /* NMIDI */
/* DEBUG functions */
#if CS4280_DEBUG > 10
static int
cs4280_checkimage(struct cs428x_softc *sc, uint32_t *src,
uint32_t offset, uint32_t len)
{
uint32_t ctr, data;
int err;
if ((offset & 3) || (len & 3))
return -1;
err = 0;
len /= sizeof(uint32_t);
for (ctr = 0; ctr < len; ctr++) {
/* I cannot confirm this is the right thing
* on BIG-ENDIAN machines
*/
data = BA1READ4(sc, offset+ctr*4);
if (data != htole32(*(src+ctr))) {
printf("0x%06x: 0x%08x(0x%08x)\n",
offset+ctr*4, data, *(src+ctr));
*(src+ctr) = data;
++err;
}
}
return err;
}
static int
cs4280_check_images(struct cs428x_softc *sc)
{
int idx, err;
uint32_t offset;
offset = 0;
err = 0;
/*for (idx=0; idx < BA1_MEMORY_COUNT; ++idx)*/
for (idx = 0; idx < 1; ++idx) {
err = cs4280_checkimage(sc, &BA1Struct.map[offset],
BA1Struct.memory[idx].offset,
BA1Struct.memory[idx].size);
if (err != 0) {
aprint_error_dev(sc->sc_dev,
"check_image failed at %d\n", idx);
}
offset += BA1Struct.memory[idx].size / sizeof(uint32_t);
}
return err;
}
#endif /* CS4280_DEBUG */
