OMAP2 EAC module.
Not yet hooked up to any CODEC.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4886 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/hw/omap2.c b/hw/omap2.c
index de42a53..ce5955f 100644
--- a/hw/omap2.c
+++ b/hw/omap2.c
@@ -26,6 +26,7 @@
#include "qemu-timer.h"
#include "qemu-char.h"
#include "flash.h"
+#include "audio/audio.h"
/* GP timers */
struct omap_gp_timer_s {
@@ -1420,6 +1421,541 @@
s->ch[chipselect].opaque = opaque;
}
+/* Enhanced Audio Controller (CODEC only) */
+struct omap_eac_s {
+ target_phys_addr_t base;
+ qemu_irq irq;
+
+ uint16_t sysconfig;
+ uint8_t config[4];
+ uint8_t control;
+ uint8_t address;
+ uint16_t data;
+ uint8_t vtol;
+ uint8_t vtsl;
+ uint16_t mixer;
+ uint16_t gain[4];
+ uint8_t att;
+ uint16_t max[7];
+
+ struct {
+ qemu_irq txdrq;
+ qemu_irq rxdrq;
+ uint32_t (*txrx)(void *opaque, uint32_t, int);
+ void *opaque;
+
+#define EAC_BUF_LEN 1024
+ uint32_t rxbuf[EAC_BUF_LEN];
+ int rxlen;
+ int rxavail;
+ uint32_t txbuf[EAC_BUF_LEN];
+ int txlen;
+ int txavail;
+
+ int enable;
+ int rate;
+
+ uint16_t config[4];
+
+ /* These need to be moved to the actual codec */
+ QEMUSoundCard card;
+ SWVoiceIn *in_voice;
+ SWVoiceOut *out_voice;
+ int hw_enable;
+ } codec;
+
+ struct {
+ uint8_t control;
+ uint16_t config;
+ } modem, bt;
+};
+
+static inline void omap_eac_interrupt_update(struct omap_eac_s *s)
+{
+ qemu_set_irq(s->irq, (s->codec.config[1] >> 14) & 1); /* AURDI */
+}
+
+static inline void omap_eac_in_dmarequest_update(struct omap_eac_s *s)
+{
+ qemu_set_irq(s->codec.rxdrq, s->codec.rxavail + s->codec.rxlen &&
+ ((s->codec.config[1] >> 12) & 1)); /* DMAREN */
+}
+
+static inline void omap_eac_out_dmarequest_update(struct omap_eac_s *s)
+{
+ qemu_set_irq(s->codec.txdrq, s->codec.txlen < s->codec.txavail &&
+ ((s->codec.config[1] >> 11) & 1)); /* DMAWEN */
+}
+
+static inline void omap_eac_in_refill(struct omap_eac_s *s)
+{
+ int left, start = 0;
+
+ s->codec.rxlen = MIN(s->codec.rxavail, EAC_BUF_LEN);
+ s->codec.rxavail -= s->codec.rxlen;
+
+ for (left = s->codec.rxlen << 2; left; start = (EAC_BUF_LEN << 2) - left)
+ left -= AUD_read(s->codec.in_voice,
+ (uint8_t *) s->codec.rxbuf + start, left);
+}
+
+static inline void omap_eac_out_empty(struct omap_eac_s *s)
+{
+ int left, start = 0;
+
+ for (left = s->codec.txlen << 2; left; start = (s->codec.txlen << 2) - left)
+ left -= AUD_write(s->codec.out_voice,
+ (uint8_t *) s->codec.txbuf + start, left);
+
+ s->codec.txavail -= s->codec.txlen;
+ s->codec.txlen = 0;
+}
+
+static void omap_eac_in_cb(void *opaque, int avail_b)
+{
+ struct omap_eac_s *s = (struct omap_eac_s *) opaque;
+
+ s->codec.rxavail = avail_b >> 2;
+ omap_eac_in_dmarequest_update(s);
+ /* TODO: possibly discard current buffer if overrun */
+}
+
+static void omap_eac_out_cb(void *opaque, int free_b)
+{
+ struct omap_eac_s *s = (struct omap_eac_s *) opaque;
+
+ s->codec.txavail = free_b >> 2;
+ if (s->codec.txlen > s->codec.txavail)
+ s->codec.txlen = s->codec.txavail;
+ omap_eac_out_empty(s);
+ omap_eac_out_dmarequest_update(s);
+}
+
+static void omap_eac_enable_update(struct omap_eac_s *s)
+{
+ s->codec.enable = !(s->codec.config[1] & 1) && /* EACPWD */
+ (s->codec.config[1] & 2) && /* AUDEN */
+ s->codec.hw_enable;
+}
+
+static const int omap_eac_fsint[4] = {
+ 8000,
+ 11025,
+ 22050,
+ 44100,
+};
+
+static const int omap_eac_fsint2[8] = {
+ 8000,
+ 11025,
+ 22050,
+ 44100,
+ 48000,
+ 0, 0, 0,
+};
+
+static const int omap_eac_fsint3[16] = {
+ 8000,
+ 11025,
+ 16000,
+ 22050,
+ 24000,
+ 32000,
+ 44100,
+ 48000,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+static void omap_eac_rate_update(struct omap_eac_s *s)
+{
+ int fsint[3];
+
+ fsint[2] = (s->codec.config[3] >> 9) & 0xf;
+ fsint[1] = (s->codec.config[2] >> 0) & 0x7;
+ fsint[0] = (s->codec.config[0] >> 6) & 0x3;
+ if (fsint[2] < 0xf)
+ s->codec.rate = omap_eac_fsint3[fsint[2]];
+ else if (fsint[1] < 0x7)
+ s->codec.rate = omap_eac_fsint2[fsint[1]];
+ else
+ s->codec.rate = omap_eac_fsint[fsint[0]];
+}
+
+static void omap_eac_volume_update(struct omap_eac_s *s)
+{
+ /* TODO */
+}
+
+static void omap_eac_format_update(struct omap_eac_s *s)
+{
+ audsettings_t fmt;
+
+ omap_eac_out_empty(s);
+
+ if (s->codec.in_voice) {
+ AUD_set_active_in(s->codec.in_voice, 0);
+ AUD_close_in(&s->codec.card, s->codec.in_voice);
+ s->codec.in_voice = 0;
+ }
+ if (s->codec.out_voice) {
+ AUD_set_active_out(s->codec.out_voice, 0);
+ AUD_close_out(&s->codec.card, s->codec.out_voice);
+ s->codec.out_voice = 0;
+ }
+
+ omap_eac_enable_update(s);
+ if (!s->codec.enable)
+ return;
+
+ omap_eac_rate_update(s);
+ fmt.endianness = ((s->codec.config[0] >> 8) & 1); /* LI_BI */
+ fmt.nchannels = ((s->codec.config[0] >> 10) & 1) ? 2 : 1; /* MN_ST */
+ fmt.freq = s->codec.rate;
+ /* TODO: signedness possibly depends on the CODEC hardware - or
+ * does I2S specify it? */
+ /* All register writes are 16 bits so we we store 16-bit samples
+ * in the buffers regardless of AGCFR[B8_16] value. */
+ fmt.fmt = AUD_FMT_U16;
+
+ s->codec.in_voice = AUD_open_in(&s->codec.card, s->codec.in_voice,
+ "eac.codec.in", s, omap_eac_in_cb, &fmt);
+ s->codec.out_voice = AUD_open_out(&s->codec.card, s->codec.out_voice,
+ "eac.codec.out", s, omap_eac_out_cb, &fmt);
+
+ omap_eac_volume_update(s);
+
+ AUD_set_active_in(s->codec.in_voice, 1);
+ AUD_set_active_out(s->codec.out_voice, 1);
+}
+
+static void omap_eac_reset(struct omap_eac_s *s)
+{
+ s->sysconfig = 0;
+ s->config[0] = 0x0c;
+ s->config[1] = 0x09;
+ s->config[2] = 0xab;
+ s->config[3] = 0x03;
+ s->control = 0x00;
+ s->address = 0x00;
+ s->data = 0x0000;
+ s->vtol = 0x00;
+ s->vtsl = 0x00;
+ s->mixer = 0x0000;
+ s->gain[0] = 0xe7e7;
+ s->gain[1] = 0x6767;
+ s->gain[2] = 0x6767;
+ s->gain[3] = 0x6767;
+ s->att = 0xce;
+ s->max[0] = 0;
+ s->max[1] = 0;
+ s->max[2] = 0;
+ s->max[3] = 0;
+ s->max[4] = 0;
+ s->max[5] = 0;
+ s->max[6] = 0;
+
+ s->modem.control = 0x00;
+ s->modem.config = 0x0000;
+ s->bt.control = 0x00;
+ s->bt.config = 0x0000;
+ s->codec.config[0] = 0x0649;
+ s->codec.config[1] = 0x0000;
+ s->codec.config[2] = 0x0007;
+ s->codec.config[3] = 0x1ffc;
+ s->codec.rxlen = 0;
+ s->codec.txlen = 0;
+ s->codec.rxavail = 0;
+ s->codec.txavail = 0;
+
+ omap_eac_format_update(s);
+ omap_eac_interrupt_update(s);
+}
+
+static uint32_t omap_eac_read(void *opaque, target_phys_addr_t addr)
+{
+ struct omap_eac_s *s = (struct omap_eac_s *) opaque;
+ int offset = addr - s->base;
+
+ switch (offset) {
+ case 0x000: /* CPCFR1 */
+ return s->config[0];
+ case 0x004: /* CPCFR2 */
+ return s->config[1];
+ case 0x008: /* CPCFR3 */
+ return s->config[2];
+ case 0x00c: /* CPCFR4 */
+ return s->config[3];
+
+ case 0x010: /* CPTCTL */
+ return s->control | ((s->codec.rxavail + s->codec.rxlen > 0) << 7) |
+ ((s->codec.txlen < s->codec.txavail) << 5);
+
+ case 0x014: /* CPTTADR */
+ return s->address;
+ case 0x018: /* CPTDATL */
+ return s->data & 0xff;
+ case 0x01c: /* CPTDATH */
+ return s->data >> 8;
+ case 0x020: /* CPTVSLL */
+ return s->vtol;
+ case 0x024: /* CPTVSLH */
+ return s->vtsl | (3 << 5); /* CRDY1 | CRDY2 */
+ case 0x040: /* MPCTR */
+ return s->modem.control;
+ case 0x044: /* MPMCCFR */
+ return s->modem.config;
+ case 0x060: /* BPCTR */
+ return s->bt.control;
+ case 0x064: /* BPMCCFR */
+ return s->bt.config;
+ case 0x080: /* AMSCFR */
+ return s->mixer;
+ case 0x084: /* AMVCTR */
+ return s->gain[0];
+ case 0x088: /* AM1VCTR */
+ return s->gain[1];
+ case 0x08c: /* AM2VCTR */
+ return s->gain[2];
+ case 0x090: /* AM3VCTR */
+ return s->gain[3];
+ case 0x094: /* ASTCTR */
+ return s->att;
+ case 0x098: /* APD1LCR */
+ return s->max[0];
+ case 0x09c: /* APD1RCR */
+ return s->max[1];
+ case 0x0a0: /* APD2LCR */
+ return s->max[2];
+ case 0x0a4: /* APD2RCR */
+ return s->max[3];
+ case 0x0a8: /* APD3LCR */
+ return s->max[4];
+ case 0x0ac: /* APD3RCR */
+ return s->max[5];
+ case 0x0b0: /* APD4R */
+ return s->max[6];
+ case 0x0b4: /* ADWR */
+ /* This should be write-only? Docs list it as read-only. */
+ return 0x0000;
+ case 0x0b8: /* ADRDR */
+ if (likely(s->codec.rxlen > 1))
+ return s->codec.rxbuf[EAC_BUF_LEN - s->codec.rxlen --];
+ else if (s->codec.rxlen) {
+ if (s->codec.rxavail)
+ omap_eac_in_refill(s);
+ else {
+ s->codec.rxlen = 0;
+ omap_eac_in_dmarequest_update(s);
+ }
+ return s->codec.rxbuf[EAC_BUF_LEN - 1];
+ }
+ return 0x0000;
+ case 0x0bc: /* AGCFR */
+ return s->codec.config[0];
+ case 0x0c0: /* AGCTR */
+ return s->codec.config[1] | ((s->codec.config[1] & 2) << 14);
+ case 0x0c4: /* AGCFR2 */
+ return s->codec.config[2];
+ case 0x0c8: /* AGCFR3 */
+ return s->codec.config[3];
+ case 0x0cc: /* MBPDMACTR */
+ case 0x0d0: /* MPDDMARR */
+ case 0x0d8: /* MPUDMARR */
+ case 0x0e4: /* BPDDMARR */
+ case 0x0ec: /* BPUDMARR */
+ return 0x0000;
+
+ case 0x100: /* VERSION_NUMBER */
+ return 0x0010;
+
+ case 0x104: /* SYSCONFIG */
+ return s->sysconfig;
+
+ case 0x108: /* SYSSTATUS */
+ return 1 | 0xe; /* RESETDONE | stuff */
+ }
+
+ OMAP_BAD_REG(addr);
+ return 0;
+}
+
+static void omap_eac_write(void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ struct omap_eac_s *s = (struct omap_eac_s *) opaque;
+ int offset = addr - s->base;
+
+ switch (offset) {
+ case 0x098: /* APD1LCR */
+ case 0x09c: /* APD1RCR */
+ case 0x0a0: /* APD2LCR */
+ case 0x0a4: /* APD2RCR */
+ case 0x0a8: /* APD3LCR */
+ case 0x0ac: /* APD3RCR */
+ case 0x0b0: /* APD4R */
+ case 0x0b8: /* ADRDR */
+ case 0x0d0: /* MPDDMARR */
+ case 0x0d8: /* MPUDMARR */
+ case 0x0e4: /* BPDDMARR */
+ case 0x0ec: /* BPUDMARR */
+ case 0x100: /* VERSION_NUMBER */
+ case 0x108: /* SYSSTATUS */
+ OMAP_RO_REG(addr);
+ return;
+
+ case 0x000: /* CPCFR1 */
+ s->config[0] = value & 0xff;
+ omap_eac_format_update(s);
+ break;
+ case 0x004: /* CPCFR2 */
+ s->config[1] = value & 0xff;
+ omap_eac_format_update(s);
+ break;
+ case 0x008: /* CPCFR3 */
+ s->config[2] = value & 0xff;
+ omap_eac_format_update(s);
+ break;
+ case 0x00c: /* CPCFR4 */
+ s->config[3] = value & 0xff;
+ omap_eac_format_update(s);
+ break;
+
+ case 0x010: /* CPTCTL */
+ /* Assuming TXF and TXE bits are read-only... */
+ s->control = value & 0x5f;
+ omap_eac_interrupt_update(s);
+ break;
+
+ case 0x014: /* CPTTADR */
+ s->address = value & 0xff;
+ break;
+ case 0x018: /* CPTDATL */
+ s->data &= 0xff00;
+ s->data |= value & 0xff;
+ break;
+ case 0x01c: /* CPTDATH */
+ s->data &= 0x00ff;
+ s->data |= value << 8;
+ break;
+ case 0x020: /* CPTVSLL */
+ s->vtol = value & 0xf8;
+ break;
+ case 0x024: /* CPTVSLH */
+ s->vtsl = value & 0x9f;
+ break;
+ case 0x040: /* MPCTR */
+ s->modem.control = value & 0x8f;
+ break;
+ case 0x044: /* MPMCCFR */
+ s->modem.config = value & 0x7fff;
+ break;
+ case 0x060: /* BPCTR */
+ s->bt.control = value & 0x8f;
+ break;
+ case 0x064: /* BPMCCFR */
+ s->bt.config = value & 0x7fff;
+ break;
+ case 0x080: /* AMSCFR */
+ s->mixer = value & 0x0fff;
+ break;
+ case 0x084: /* AMVCTR */
+ s->gain[0] = value & 0xffff;
+ break;
+ case 0x088: /* AM1VCTR */
+ s->gain[1] = value & 0xff7f;
+ break;
+ case 0x08c: /* AM2VCTR */
+ s->gain[2] = value & 0xff7f;
+ break;
+ case 0x090: /* AM3VCTR */
+ s->gain[3] = value & 0xff7f;
+ break;
+ case 0x094: /* ASTCTR */
+ s->att = value & 0xff;
+ break;
+
+ case 0x0b4: /* ADWR */
+ s->codec.txbuf[s->codec.txlen ++] = value;
+ if (unlikely(s->codec.txlen == EAC_BUF_LEN ||
+ s->codec.txlen == s->codec.txavail)) {
+ if (s->codec.txavail)
+ omap_eac_out_empty(s);
+ else
+ s->codec.txlen = 0;
+ }
+ break;
+
+ case 0x0bc: /* AGCFR */
+ s->codec.config[0] = value & 0x07ff;
+ omap_eac_format_update(s);
+ break;
+ case 0x0c0: /* AGCTR */
+ s->codec.config[1] = value & 0x780f;
+ omap_eac_format_update(s);
+ break;
+ case 0x0c4: /* AGCFR2 */
+ s->codec.config[2] = value & 0x003f;
+ omap_eac_format_update(s);
+ break;
+ case 0x0c8: /* AGCFR3 */
+ s->codec.config[3] = value & 0xffff;
+ omap_eac_format_update(s);
+ break;
+ case 0x0cc: /* MBPDMACTR */
+ case 0x0d4: /* MPDDMAWR */
+ case 0x0e0: /* MPUDMAWR */
+ case 0x0e8: /* BPDDMAWR */
+ case 0x0f0: /* BPUDMAWR */
+ break;
+
+ case 0x104: /* SYSCONFIG */
+ if (value & (1 << 1)) /* SOFTRESET */
+ omap_eac_reset(s);
+ s->sysconfig = value & 0x31d;
+ break;
+
+ default:
+ OMAP_BAD_REG(addr);
+ return;
+ }
+}
+
+static CPUReadMemoryFunc *omap_eac_readfn[] = {
+ omap_badwidth_read16,
+ omap_eac_read,
+ omap_badwidth_read16,
+};
+
+static CPUWriteMemoryFunc *omap_eac_writefn[] = {
+ omap_badwidth_write16,
+ omap_eac_write,
+ omap_badwidth_write16,
+};
+
+struct omap_eac_s *omap_eac_init(struct omap_target_agent_s *ta,
+ qemu_irq irq, qemu_irq *drq, omap_clk fclk, omap_clk iclk)
+{
+ int iomemtype;
+ struct omap_eac_s *s = (struct omap_eac_s *)
+ qemu_mallocz(sizeof(struct omap_eac_s));
+
+ s->irq = irq;
+ s->codec.rxdrq = *drq ++;
+ s->codec.txdrq = *drq ++;
+ omap_eac_reset(s);
+
+#ifdef HAS_AUDIO
+ /* TODO: do AUD_init globally for machine */
+ AUD_register_card(AUD_init(), "OMAP EAC", &s->codec.card);
+
+ iomemtype = cpu_register_io_memory(0, omap_eac_readfn,
+ omap_eac_writefn, s);
+ s->base = omap_l4_attach(ta, 0, iomemtype);
+#endif
+
+ return s;
+}
+
/* STI/XTI (emulation interface) console - reverse engineered only */
struct omap_sti_s {
target_phys_addr_t base;
@@ -2566,6 +3102,7 @@
case 0x200: /* CM_FCLKEN1_CORE */
s->clken[0] = value & 0xbfffffff;
/* TODO update clocks */
+ /* The EN_EAC bit only gets/puts func_96m_clk. */
break;
case 0x204: /* CM_FCLKEN2_CORE */
s->clken[1] = value & 0x00000007;
@@ -2574,6 +3111,7 @@
case 0x210: /* CM_ICLKEN1_CORE */
s->clken[2] = value & 0xfffffff9;
/* TODO update clocks */
+ /* The EN_EAC bit only gets/puts core_l4_iclk. */
break;
case 0x214: /* CM_ICLKEN2_CORE */
s->clken[3] = value & 0x00000007;
@@ -3969,12 +4507,12 @@
omap_findclk(s, "mmc_fclk"), omap_findclk(s, "mmc_iclk"));
s->mcspi[0] = omap_mcspi_init(omap_l4ta(s->l4, 35), 4,
- s->irq[0][OMAP_INT_24XX_MCSPI1_IRQ],
+ s->irq[0][OMAP_INT_24XX_MCSPI1_IRQ],
&s->drq[OMAP24XX_DMA_SPI1_TX0],
omap_findclk(s, "spi1_fclk"),
omap_findclk(s, "spi1_iclk"));
s->mcspi[1] = omap_mcspi_init(omap_l4ta(s->l4, 36), 2,
- s->irq[0][OMAP_INT_24XX_MCSPI2_IRQ],
+ s->irq[0][OMAP_INT_24XX_MCSPI2_IRQ],
&s->drq[OMAP24XX_DMA_SPI2_TX0],
omap_findclk(s, "spi2_fclk"),
omap_findclk(s, "spi2_iclk"));
@@ -3992,6 +4530,13 @@
serial_hds[0] && serial_hds[1] && serial_hds[2] ?
serial_hds[3] : 0);
+ s->eac = omap_eac_init(omap_l4ta(s->l4, 32),
+ s->irq[0][OMAP_INT_24XX_EAC_IRQ],
+ /* Ten consecutive lines */
+ &s->drq[OMAP24XX_DMA_EAC_AC_RD],
+ omap_findclk(s, "func_96m_clk"),
+ omap_findclk(s, "core_l4_iclk"));
+
/* All register mappings (includin those not currenlty implemented):
* SystemControlMod 48000000 - 48000fff
* SystemControlL4 48001000 - 48001fff
