diff options
Diffstat (limited to 'hw/cs4231a.c')
| -rw-r--r-- | hw/cs4231a.c | 697 |
1 files changed, 0 insertions, 697 deletions
diff --git a/hw/cs4231a.c b/hw/cs4231a.c deleted file mode 100644 index f005f25899..0000000000 --- a/hw/cs4231a.c +++ /dev/null @@ -1,697 +0,0 @@ -/* - * QEMU Crystal CS4231 audio chip emulation - * - * Copyright (c) 2006 Fabrice Bellard - * - * 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. - */ -#include "hw/hw.h" -#include "hw/audiodev.h" -#include "audio/audio.h" -#include "hw/isa.h" -#include "hw/qdev.h" -#include "qemu/timer.h" - -/* - Missing features: - ADC - Loopback - Timer - ADPCM - More... -*/ - -/* #define DEBUG */ -/* #define DEBUG_XLAW */ - -static struct { - int aci_counter; -} conf = {1}; - -#ifdef DEBUG -#define dolog(...) AUD_log ("cs4231a", __VA_ARGS__) -#else -#define dolog(...) -#endif - -#define lwarn(...) AUD_log ("cs4231a", "warning: " __VA_ARGS__) -#define lerr(...) AUD_log ("cs4231a", "error: " __VA_ARGS__) - -#define CS_REGS 16 -#define CS_DREGS 32 - -typedef struct CSState { - ISADevice dev; - QEMUSoundCard card; - MemoryRegion ioports; - qemu_irq pic; - uint32_t regs[CS_REGS]; - uint8_t dregs[CS_DREGS]; - uint32_t irq; - uint32_t dma; - uint32_t port; - int shift; - int dma_running; - int audio_free; - int transferred; - int aci_counter; - SWVoiceOut *voice; - int16_t *tab; -} CSState; - -#define MODE2 (1 << 6) -#define MCE (1 << 6) -#define PMCE (1 << 4) -#define CMCE (1 << 5) -#define TE (1 << 6) -#define PEN (1 << 0) -#define INT (1 << 0) -#define IEN (1 << 1) -#define PPIO (1 << 6) -#define PI (1 << 4) -#define CI (1 << 5) -#define TI (1 << 6) - -enum { - Index_Address, - Index_Data, - Status, - PIO_Data -}; - -enum { - Left_ADC_Input_Control, - Right_ADC_Input_Control, - Left_AUX1_Input_Control, - Right_AUX1_Input_Control, - Left_AUX2_Input_Control, - Right_AUX2_Input_Control, - Left_DAC_Output_Control, - Right_DAC_Output_Control, - FS_And_Playback_Data_Format, - Interface_Configuration, - Pin_Control, - Error_Status_And_Initialization, - MODE_And_ID, - Loopback_Control, - Playback_Upper_Base_Count, - Playback_Lower_Base_Count, - Alternate_Feature_Enable_I, - Alternate_Feature_Enable_II, - Left_Line_Input_Control, - Right_Line_Input_Control, - Timer_Low_Base, - Timer_High_Base, - RESERVED, - Alternate_Feature_Enable_III, - Alternate_Feature_Status, - Version_Chip_ID, - Mono_Input_And_Output_Control, - RESERVED_2, - Capture_Data_Format, - RESERVED_3, - Capture_Upper_Base_Count, - Capture_Lower_Base_Count -}; - -static int freqs[2][8] = { - { 8000, 16000, 27420, 32000, -1, -1, 48000, 9000 }, - { 5510, 11025, 18900, 22050, 37800, 44100, 33075, 6620 } -}; - -/* Tables courtesy http://hazelware.luggle.com/tutorials/mulawcompression.html */ -static int16_t MuLawDecompressTable[256] = -{ - -32124,-31100,-30076,-29052,-28028,-27004,-25980,-24956, - -23932,-22908,-21884,-20860,-19836,-18812,-17788,-16764, - -15996,-15484,-14972,-14460,-13948,-13436,-12924,-12412, - -11900,-11388,-10876,-10364, -9852, -9340, -8828, -8316, - -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140, - -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092, - -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004, - -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980, - -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436, - -1372, -1308, -1244, -1180, -1116, -1052, -988, -924, - -876, -844, -812, -780, -748, -716, -684, -652, - -620, -588, -556, -524, -492, -460, -428, -396, - -372, -356, -340, -324, -308, -292, -276, -260, - -244, -228, -212, -196, -180, -164, -148, -132, - -120, -112, -104, -96, -88, -80, -72, -64, - -56, -48, -40, -32, -24, -16, -8, 0, - 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956, - 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764, - 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412, - 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316, - 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140, - 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092, - 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004, - 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980, - 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436, - 1372, 1308, 1244, 1180, 1116, 1052, 988, 924, - 876, 844, 812, 780, 748, 716, 684, 652, - 620, 588, 556, 524, 492, 460, 428, 396, - 372, 356, 340, 324, 308, 292, 276, 260, - 244, 228, 212, 196, 180, 164, 148, 132, - 120, 112, 104, 96, 88, 80, 72, 64, - 56, 48, 40, 32, 24, 16, 8, 0 -}; - -static int16_t ALawDecompressTable[256] = -{ - -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736, - -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784, - -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368, - -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392, - -22016,-20992,-24064,-23040,-17920,-16896,-19968,-18944, - -30208,-29184,-32256,-31232,-26112,-25088,-28160,-27136, - -11008,-10496,-12032,-11520,-8960, -8448, -9984, -9472, - -15104,-14592,-16128,-15616,-13056,-12544,-14080,-13568, - -344, -328, -376, -360, -280, -264, -312, -296, - -472, -456, -504, -488, -408, -392, -440, -424, - -88, -72, -120, -104, -24, -8, -56, -40, - -216, -200, -248, -232, -152, -136, -184, -168, - -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184, - -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696, - -688, -656, -752, -720, -560, -528, -624, -592, - -944, -912, -1008, -976, -816, -784, -880, -848, - 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736, - 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784, - 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368, - 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392, - 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944, - 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136, - 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472, - 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568, - 344, 328, 376, 360, 280, 264, 312, 296, - 472, 456, 504, 488, 408, 392, 440, 424, - 88, 72, 120, 104, 24, 8, 56, 40, - 216, 200, 248, 232, 152, 136, 184, 168, - 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184, - 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696, - 688, 656, 752, 720, 560, 528, 624, 592, - 944, 912, 1008, 976, 816, 784, 880, 848 -}; - -static void cs_reset (void *opaque) -{ - CSState *s = opaque; - - s->regs[Index_Address] = 0x40; - s->regs[Index_Data] = 0x00; - s->regs[Status] = 0x00; - s->regs[PIO_Data] = 0x00; - - s->dregs[Left_ADC_Input_Control] = 0x00; - s->dregs[Right_ADC_Input_Control] = 0x00; - s->dregs[Left_AUX1_Input_Control] = 0x88; - s->dregs[Right_AUX1_Input_Control] = 0x88; - s->dregs[Left_AUX2_Input_Control] = 0x88; - s->dregs[Right_AUX2_Input_Control] = 0x88; - s->dregs[Left_DAC_Output_Control] = 0x80; - s->dregs[Right_DAC_Output_Control] = 0x80; - s->dregs[FS_And_Playback_Data_Format] = 0x00; - s->dregs[Interface_Configuration] = 0x08; - s->dregs[Pin_Control] = 0x00; - s->dregs[Error_Status_And_Initialization] = 0x00; - s->dregs[MODE_And_ID] = 0x8a; - s->dregs[Loopback_Control] = 0x00; - s->dregs[Playback_Upper_Base_Count] = 0x00; - s->dregs[Playback_Lower_Base_Count] = 0x00; - s->dregs[Alternate_Feature_Enable_I] = 0x00; - s->dregs[Alternate_Feature_Enable_II] = 0x00; - s->dregs[Left_Line_Input_Control] = 0x88; - s->dregs[Right_Line_Input_Control] = 0x88; - s->dregs[Timer_Low_Base] = 0x00; - s->dregs[Timer_High_Base] = 0x00; - s->dregs[RESERVED] = 0x00; - s->dregs[Alternate_Feature_Enable_III] = 0x00; - s->dregs[Alternate_Feature_Status] = 0x00; - s->dregs[Version_Chip_ID] = 0xa0; - s->dregs[Mono_Input_And_Output_Control] = 0xa0; - s->dregs[RESERVED_2] = 0x00; - s->dregs[Capture_Data_Format] = 0x00; - s->dregs[RESERVED_3] = 0x00; - s->dregs[Capture_Upper_Base_Count] = 0x00; - s->dregs[Capture_Lower_Base_Count] = 0x00; -} - -static void cs_audio_callback (void *opaque, int free) -{ - CSState *s = opaque; - s->audio_free = free; -} - -static void cs_reset_voices (CSState *s, uint32_t val) -{ - int xtal; - struct audsettings as; - -#ifdef DEBUG_XLAW - if (val == 0 || val == 32) - val = (1 << 4) | (1 << 5); -#endif - - xtal = val & 1; - as.freq = freqs[xtal][(val >> 1) & 7]; - - if (as.freq == -1) { - lerr ("unsupported frequency (val=%#x)\n", val); - goto error; - } - - as.nchannels = (val & (1 << 4)) ? 2 : 1; - as.endianness = 0; - s->tab = NULL; - - switch ((val >> 5) & ((s->dregs[MODE_And_ID] & MODE2) ? 7 : 3)) { - case 0: - as.fmt = AUD_FMT_U8; - s->shift = as.nchannels == 2; - break; - - case 1: - s->tab = MuLawDecompressTable; - goto x_law; - case 3: - s->tab = ALawDecompressTable; - x_law: - as.fmt = AUD_FMT_S16; - as.endianness = AUDIO_HOST_ENDIANNESS; - s->shift = as.nchannels == 2; - break; - - case 6: - as.endianness = 1; - case 2: - as.fmt = AUD_FMT_S16; - s->shift = as.nchannels; - break; - - case 7: - case 4: - lerr ("attempt to use reserved format value (%#x)\n", val); - goto error; - - case 5: - lerr ("ADPCM 4 bit IMA compatible format is not supported\n"); - goto error; - } - - s->voice = AUD_open_out ( - &s->card, - s->voice, - "cs4231a", - s, - cs_audio_callback, - &as - ); - - if (s->dregs[Interface_Configuration] & PEN) { - if (!s->dma_running) { - DMA_hold_DREQ (s->dma); - AUD_set_active_out (s->voice, 1); - s->transferred = 0; - } - s->dma_running = 1; - } - else { - if (s->dma_running) { - DMA_release_DREQ (s->dma); - AUD_set_active_out (s->voice, 0); - } - s->dma_running = 0; - } - return; - - error: - if (s->dma_running) { - DMA_release_DREQ (s->dma); - AUD_set_active_out (s->voice, 0); - } -} - -static uint64_t cs_read (void *opaque, hwaddr addr, unsigned size) -{ - CSState *s = opaque; - uint32_t saddr, iaddr, ret; - - saddr = addr; - iaddr = ~0U; - - switch (saddr) { - case Index_Address: - ret = s->regs[saddr] & ~0x80; - break; - - case Index_Data: - if (!(s->dregs[MODE_And_ID] & MODE2)) - iaddr = s->regs[Index_Address] & 0x0f; - else - iaddr = s->regs[Index_Address] & 0x1f; - - ret = s->dregs[iaddr]; - if (iaddr == Error_Status_And_Initialization) { - /* keep SEAL happy */ - if (s->aci_counter) { - ret |= 1 << 5; - s->aci_counter -= 1; - } - } - break; - - default: - ret = s->regs[saddr]; - break; - } - dolog ("read %d:%d -> %d\n", saddr, iaddr, ret); - return ret; -} - -static void cs_write (void *opaque, hwaddr addr, - uint64_t val64, unsigned size) -{ - CSState *s = opaque; - uint32_t saddr, iaddr, val; - - saddr = addr; - val = val64; - - switch (saddr) { - case Index_Address: - if (!(s->regs[Index_Address] & MCE) && (val & MCE) - && (s->dregs[Interface_Configuration] & (3 << 3))) - s->aci_counter = conf.aci_counter; - - s->regs[Index_Address] = val & ~(1 << 7); - break; - - case Index_Data: - if (!(s->dregs[MODE_And_ID] & MODE2)) - iaddr = s->regs[Index_Address] & 0x0f; - else - iaddr = s->regs[Index_Address] & 0x1f; - - switch (iaddr) { - case RESERVED: - case RESERVED_2: - case RESERVED_3: - lwarn ("attempt to write %#x to reserved indirect register %d\n", - val, iaddr); - break; - - case FS_And_Playback_Data_Format: - if (s->regs[Index_Address] & MCE) { - cs_reset_voices (s, val); - } - else { - if (s->dregs[Alternate_Feature_Status] & PMCE) { - val = (val & ~0x0f) | (s->dregs[iaddr] & 0x0f); - cs_reset_voices (s, val); - } - else { - lwarn ("[P]MCE(%#x, %#x) is not set, val=%#x\n", - s->regs[Index_Address], - s->dregs[Alternate_Feature_Status], - val); - break; - } - } - s->dregs[iaddr] = val; - break; - - case Interface_Configuration: - val &= ~(1 << 5); /* D5 is reserved */ - s->dregs[iaddr] = val; - if (val & PPIO) { - lwarn ("PIO is not supported (%#x)\n", val); - break; - } - if (val & PEN) { - if (!s->dma_running) { - cs_reset_voices (s, s->dregs[FS_And_Playback_Data_Format]); - } - } - else { - if (s->dma_running) { - DMA_release_DREQ (s->dma); - AUD_set_active_out (s->voice, 0); - s->dma_running = 0; - } - } - break; - - case Error_Status_And_Initialization: - lwarn ("attempt to write to read only register %d\n", iaddr); - break; - - case MODE_And_ID: - dolog ("val=%#x\n", val); - if (val & MODE2) - s->dregs[iaddr] |= MODE2; - else - s->dregs[iaddr] &= ~MODE2; - break; - - case Alternate_Feature_Enable_I: - if (val & TE) - lerr ("timer is not yet supported\n"); - s->dregs[iaddr] = val; - break; - - case Alternate_Feature_Status: - if ((s->dregs[iaddr] & PI) && !(val & PI)) { - /* XXX: TI CI */ - qemu_irq_lower (s->pic); - s->regs[Status] &= ~INT; - } - s->dregs[iaddr] = val; - break; - - case Version_Chip_ID: - lwarn ("write to Version_Chip_ID register %#x\n", val); - s->dregs[iaddr] = val; - break; - - default: - s->dregs[iaddr] = val; - break; - } - dolog ("written value %#x to indirect register %d\n", val, iaddr); - break; - - case Status: - if (s->regs[Status] & INT) { - qemu_irq_lower (s->pic); - } - s->regs[Status] &= ~INT; - s->dregs[Alternate_Feature_Status] &= ~(PI | CI | TI); - break; - - case PIO_Data: - lwarn ("attempt to write value %#x to PIO register\n", val); - break; - } -} - -static int cs_write_audio (CSState *s, int nchan, int dma_pos, - int dma_len, int len) -{ - int temp, net; - uint8_t tmpbuf[4096]; - - temp = len; - net = 0; - - while (temp) { - int left = dma_len - dma_pos; - int copied; - size_t to_copy; - - to_copy = audio_MIN (temp, left); - if (to_copy > sizeof (tmpbuf)) { - to_copy = sizeof (tmpbuf); - } - - copied = DMA_read_memory (nchan, tmpbuf, dma_pos, to_copy); - if (s->tab) { - int i; - int16_t linbuf[4096]; - - for (i = 0; i < copied; ++i) - linbuf[i] = s->tab[tmpbuf[i]]; - copied = AUD_write (s->voice, linbuf, copied << 1); - copied >>= 1; - } - else { - copied = AUD_write (s->voice, tmpbuf, copied); - } - - temp -= copied; - dma_pos = (dma_pos + copied) % dma_len; - net += copied; - - if (!copied) { - break; - } - } - - return net; -} - -static int cs_dma_read (void *opaque, int nchan, int dma_pos, int dma_len) -{ - CSState *s = opaque; - int copy, written; - int till = -1; - - copy = s->voice ? (s->audio_free >> (s->tab != NULL)) : dma_len; - - if (s->dregs[Pin_Control] & IEN) { - till = (s->dregs[Playback_Lower_Base_Count] - | (s->dregs[Playback_Upper_Base_Count] << 8)) << s->shift; - till -= s->transferred; - copy = audio_MIN (till, copy); - } - - if ((copy <= 0) || (dma_len <= 0)) { - return dma_pos; - } - - written = cs_write_audio (s, nchan, dma_pos, dma_len, copy); - - dma_pos = (dma_pos + written) % dma_len; - s->audio_free -= (written << (s->tab != NULL)); - - if (written == till) { - s->regs[Status] |= INT; - s->dregs[Alternate_Feature_Status] |= PI; - s->transferred = 0; - qemu_irq_raise (s->pic); - } - else { - s->transferred += written; - } - - return dma_pos; -} - -static int cs4231a_pre_load (void *opaque) -{ - CSState *s = opaque; - - if (s->dma_running) { - DMA_release_DREQ (s->dma); - AUD_set_active_out (s->voice, 0); - } - s->dma_running = 0; - return 0; -} - -static int cs4231a_post_load (void *opaque, int version_id) -{ - CSState *s = opaque; - - if (s->dma_running && (s->dregs[Interface_Configuration] & PEN)) { - s->dma_running = 0; - cs_reset_voices (s, s->dregs[FS_And_Playback_Data_Format]); - } - return 0; -} - -static const VMStateDescription vmstate_cs4231a = { - .name = "cs4231a", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, - .pre_load = cs4231a_pre_load, - .post_load = cs4231a_post_load, - .fields = (VMStateField []) { - VMSTATE_UINT32_ARRAY (regs, CSState, CS_REGS), - VMSTATE_BUFFER (dregs, CSState), - VMSTATE_INT32 (dma_running, CSState), - VMSTATE_INT32 (audio_free, CSState), - VMSTATE_INT32 (transferred, CSState), - VMSTATE_INT32 (aci_counter, CSState), - VMSTATE_END_OF_LIST () - } -}; - -static const MemoryRegionOps cs_ioport_ops = { - .read = cs_read, - .write = cs_write, - .impl = { - .min_access_size = 1, - .max_access_size = 1, - } -}; - -static int cs4231a_initfn (ISADevice *dev) -{ - CSState *s = DO_UPCAST (CSState, dev, dev); - - isa_init_irq (dev, &s->pic, s->irq); - - memory_region_init_io (&s->ioports, &cs_ioport_ops, s, "cs4231a", 4); - isa_register_ioport (dev, &s->ioports, s->port); - - DMA_register_channel (s->dma, cs_dma_read, s); - - qemu_register_reset (cs_reset, s); - cs_reset (s); - - AUD_register_card ("cs4231a", &s->card); - return 0; -} - -int cs4231a_init (ISABus *bus) -{ - isa_create_simple (bus, "cs4231a"); - return 0; -} - -static Property cs4231a_properties[] = { - DEFINE_PROP_HEX32 ("iobase", CSState, port, 0x534), - DEFINE_PROP_UINT32 ("irq", CSState, irq, 9), - DEFINE_PROP_UINT32 ("dma", CSState, dma, 3), - DEFINE_PROP_END_OF_LIST (), -}; - -static void cs4231a_class_initfn (ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS (klass); - ISADeviceClass *ic = ISA_DEVICE_CLASS (klass); - ic->init = cs4231a_initfn; - dc->desc = "Crystal Semiconductor CS4231A"; - dc->vmsd = &vmstate_cs4231a; - dc->props = cs4231a_properties; -} - -static const TypeInfo cs4231a_info = { - .name = "cs4231a", - .parent = TYPE_ISA_DEVICE, - .instance_size = sizeof (CSState), - .class_init = cs4231a_class_initfn, -}; - -static void cs4231a_register_types (void) -{ - type_register_static (&cs4231a_info); -} - -type_init (cs4231a_register_types) |