hw/musicpal.c

   1 /*
   2  * Marvell MV88W8618 / Freecom MusicPal emulation.
   3  *
   4  * Copyright (c) 2008 Jan Kiszka
   5  *
   6  * This code is licenced under the GNU GPL v2.
   7  */
   8
   9 #include "hw.h"
  10 #include "arm-misc.h"
  11 #include "devices.h"
  12 #include "net.h"
  13 #include "sysemu.h"
  14 #include "boards.h"
  15 #include "pc.h"
  16 #include "qemu-timer.h"
  17 #include "block.h"
  18 #include "flash.h"
  19 #include "console.h"
  20 #include "audio/audio.h"
  21 #include "i2c.h"
  22
  23 #define MP_MISC_BASE            0x80002000
  24 #define MP_MISC_SIZE            0x00001000
  25
  26 #define MP_ETH_BASE             0x80008000
  27 #define MP_ETH_SIZE             0x00001000
  28
  29 #define MP_WLAN_BASE            0x8000C000
  30 #define MP_WLAN_SIZE            0x00000800
  31
  32 #define MP_UART1_BASE           0x8000C840
  33 #define MP_UART2_BASE           0x8000C940
  34
  35 #define MP_GPIO_BASE            0x8000D000
  36 #define MP_GPIO_SIZE            0x00001000
  37
  38 #define MP_FLASHCFG_BASE        0x90006000
  39 #define MP_FLASHCFG_SIZE        0x00001000
  40
  41 #define MP_AUDIO_BASE           0x90007000
  42 #define MP_AUDIO_SIZE           0x00001000
  43
  44 #define MP_PIC_BASE             0x90008000
  45 #define MP_PIC_SIZE             0x00001000
  46
  47 #define MP_PIT_BASE             0x90009000
  48 #define MP_PIT_SIZE             0x00001000
  49
  50 #define MP_LCD_BASE             0x9000c000
  51 #define MP_LCD_SIZE             0x00001000
  52
  53 #define MP_SRAM_BASE            0xC0000000
  54 #define MP_SRAM_SIZE            0x00020000
  55
  56 #define MP_RAM_DEFAULT_SIZE     32*1024*1024
  57 #define MP_FLASH_SIZE_MAX       32*1024*1024
  58
  59 #define MP_TIMER1_IRQ           4
  60 /* ... */
  61 #define MP_TIMER4_IRQ           7
  62 #define MP_EHCI_IRQ             8
  63 #define MP_ETH_IRQ              9
  64 #define MP_UART1_IRQ            11
  65 #define MP_UART2_IRQ            11
  66 #define MP_GPIO_IRQ             12
  67 #define MP_RTC_IRQ              28
  68 #define MP_AUDIO_IRQ            30
  69
  70 static uint32_t gpio_in_state = 0xffffffff;
  71 static uint32_t gpio_isr;
  72 static uint32_t gpio_out_state;
  73 static ram_addr_t sram_off;
  74
  75 /* Address conversion helpers */
  76 static void *target2host_addr(uint32_t addr)
  77 {
  78     if (addr < MP_SRAM_BASE) {
  79         if (addr >= MP_RAM_DEFAULT_SIZE)
  80             return NULL;
  81         return (void *)(phys_ram_base + addr);
  82     } else {
  83         if (addr >= MP_SRAM_BASE + MP_SRAM_SIZE)
  84             return NULL;
  85         return (void *)(phys_ram_base + sram_off + addr - MP_SRAM_BASE);
  86     }
  87 }
  88
  89 static uint32_t host2target_addr(void *addr)
  90 {
  91     if (addr < ((void *)phys_ram_base) + sram_off)
  92         return (unsigned long)addr - (unsigned long)phys_ram_base;
  93     else
  94         return (unsigned long)addr - (unsigned long)phys_ram_base -
  95             sram_off + MP_SRAM_BASE;
  96 }
  97
  98
  99 typedef enum i2c_state {
 100     STOPPED = 0,
 101     INITIALIZING,
 102     SENDING_BIT7,
 103     SENDING_BIT6,
 104     SENDING_BIT5,
 105     SENDING_BIT4,
 106     SENDING_BIT3,
 107     SENDING_BIT2,
 108     SENDING_BIT1,
 109     SENDING_BIT0,
 110     WAITING_FOR_ACK,
 111     RECEIVING_BIT7,
 112     RECEIVING_BIT6,
 113     RECEIVING_BIT5,
 114     RECEIVING_BIT4,
 115     RECEIVING_BIT3,
 116     RECEIVING_BIT2,
 117     RECEIVING_BIT1,
 118     RECEIVING_BIT0,
 119     SENDING_ACK
 120 } i2c_state;
 121
 122 typedef struct i2c_interface {
 123     i2c_bus *bus;
 124     i2c_state state;
 125     int last_data;
 126     int last_clock;
 127     uint8_t buffer;
 128     int current_addr;
 129 } i2c_interface;
 130
 131 static void i2c_enter_stop(i2c_interface *i2c)
 132 {
 133     if (i2c->current_addr >= 0)
 134         i2c_end_transfer(i2c->bus);
 135     i2c->current_addr = -1;
 136     i2c->state = STOPPED;
 137 }
 138
 139 static void i2c_state_update(i2c_interface *i2c, int data, int clock)
 140 {
 141     if (!i2c)
 142         return;
 143
 144     switch (i2c->state) {
 145     case STOPPED:
 146         if (data == 0 && i2c->last_data == 1 && clock == 1)
 147             i2c->state = INITIALIZING;
 148         break;
 149
 150     case INITIALIZING:
 151         if (clock == 0 && i2c->last_clock == 1 && data == 0)
 152             i2c->state = SENDING_BIT7;
 153         else
 154             i2c_enter_stop(i2c);
 155         break;
 156
 157     case SENDING_BIT7 ... SENDING_BIT0:
 158         if (clock == 0 && i2c->last_clock == 1) {
 159             i2c->buffer = (i2c->buffer << 1) | data;
 160             i2c->state++; /* will end up in WAITING_FOR_ACK */
 161         } else if (data == 1 && i2c->last_data == 0 && clock == 1)
 162             i2c_enter_stop(i2c);
 163         break;
 164
 165     case WAITING_FOR_ACK:
 166         if (clock == 0 && i2c->last_clock == 1) {
 167             if (i2c->current_addr < 0) {
 168                 i2c->current_addr = i2c->buffer;
 169                 i2c_start_transfer(i2c->bus, i2c->current_addr & 0xfe,
 170                                    i2c->buffer & 1);
 171             } else
 172                 i2c_send(i2c->bus, i2c->buffer);
 173             if (i2c->current_addr & 1) {
 174                 i2c->state = RECEIVING_BIT7;
 175                 i2c->buffer = i2c_recv(i2c->bus);
 176             } else
 177                 i2c->state = SENDING_BIT7;
 178         } else if (data == 1 && i2c->last_data == 0 && clock == 1)
 179             i2c_enter_stop(i2c);
 180         break;
 181
 182     case RECEIVING_BIT7 ... RECEIVING_BIT0:
 183         if (clock == 0 && i2c->last_clock == 1) {
 184             i2c->state++; /* will end up in SENDING_ACK */
 185             i2c->buffer <<= 1;
 186         } else if (data == 1 && i2c->last_data == 0 && clock == 1)
 187             i2c_enter_stop(i2c);
 188         break;
 189
 190     case SENDING_ACK:
 191         if (clock == 0 && i2c->last_clock == 1) {
 192             i2c->state = RECEIVING_BIT7;
 193             if (data == 0)
 194                 i2c->buffer = i2c_recv(i2c->bus);
 195             else
 196                 i2c_nack(i2c->bus);
 197         } else if (data == 1 && i2c->last_data == 0 && clock == 1)
 198             i2c_enter_stop(i2c);
 199         break;
 200     }
 201
 202     i2c->last_data = data;
 203     i2c->last_clock = clock;
 204 }
 205
 206 static int i2c_get_data(i2c_interface *i2c)
 207 {
 208     if (!i2c)
 209         return 0;
 210
 211     switch (i2c->state) {
 212     case RECEIVING_BIT7 ... RECEIVING_BIT0:
 213         return (i2c->buffer >> 7);
 214
 215     case WAITING_FOR_ACK:
 216     default:
 217         return 0;
 218     }
 219 }
 220
 221 static i2c_interface *mixer_i2c;
 222
 223 #ifdef HAS_AUDIO
 224
 225 /* Audio register offsets */
 226 #define MP_AUDIO_PLAYBACK_MODE  0x00
 227 #define MP_AUDIO_CLOCK_DIV      0x18
 228 #define MP_AUDIO_IRQ_STATUS     0x20
 229 #define MP_AUDIO_IRQ_ENABLE     0x24
 230 #define MP_AUDIO_TX_START_LO    0x28
 231 #define MP_AUDIO_TX_THRESHOLD   0x2C
 232 #define MP_AUDIO_TX_STATUS      0x38
 233 #define MP_AUDIO_TX_START_HI    0x40
 234
 235 /* Status register and IRQ enable bits */
 236 #define MP_AUDIO_TX_HALF        (1 << 6)
 237 #define MP_AUDIO_TX_FULL        (1 << 7)
 238
 239 /* Playback mode bits */
 240 #define MP_AUDIO_16BIT_SAMPLE   (1 << 0)
 241 #define MP_AUDIO_PLAYBACK_EN    (1 << 7)
 242 #define MP_AUDIO_CLOCK_24MHZ    (1 << 9)
 243 #define MP_AUDIO_MONO           (1 << 14)
 244
 245 /* Wolfson 8750 I2C address */
 246 #define MP_WM_ADDR              0x34
 247
 248 static const char audio_name[] = "mv88w8618";
 249
 250 typedef struct musicpal_audio_state {
 251     qemu_irq irq;
 252     uint32_t playback_mode;
 253     uint32_t status;
 254     uint32_t irq_enable;
 255     unsigned long phys_buf;
 256     int8_t *target_buffer;
 257     unsigned int threshold;
 258     unsigned int play_pos;
 259     unsigned int last_free;
 260     uint32_t clock_div;
 261     i2c_slave *wm;
 262 } musicpal_audio_state;
 263
 264 static void audio_callback(void *opaque, int free_out, int free_in)
 265 {
 266     musicpal_audio_state *s = opaque;
 267     int16_t *codec_buffer;
 268     int8_t *mem_buffer;
 269     int pos, block_size;
 270
 271     if (!(s->playback_mode & MP_AUDIO_PLAYBACK_EN))
 272         return;
 273
 274     if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE)
 275         free_out <<= 1;
 276
 277     if (!(s->playback_mode & MP_AUDIO_MONO))
 278         free_out <<= 1;
 279
 280     block_size = s->threshold/2;
 281     if (free_out - s->last_free < block_size)
 282         return;
 283
 284     mem_buffer = s->target_buffer + s->play_pos;
 285     if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
 286         if (s->playback_mode & MP_AUDIO_MONO) {
 287             codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
 288             for (pos = 0; pos < block_size; pos += 2) {
 289                 *codec_buffer++ = *(int16_t *)mem_buffer;
 290                 *codec_buffer++ = *(int16_t *)mem_buffer;
 291                 mem_buffer += 2;
 292             }
 293         } else
 294             memcpy(wm8750_dac_buffer(s->wm, block_size >> 2),
 295                    (uint32_t *)mem_buffer, block_size);
 296     } else {
 297         if (s->playback_mode & MP_AUDIO_MONO) {
 298             codec_buffer = wm8750_dac_buffer(s->wm, block_size);
 299             for (pos = 0; pos < block_size; pos++) {
 300                 *codec_buffer++ = cpu_to_le16(256 * *mem_buffer);
 301                 *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
 302             }
 303         } else {
 304             codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
 305             for (pos = 0; pos < block_size; pos += 2) {
 306                 *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
 307                 *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
 308             }
 309         }
 310     }
 311     wm8750_dac_commit(s->wm);
 312
 313     s->last_free = free_out - block_size;
 314
 315     if (s->play_pos == 0) {
 316         s->status |= MP_AUDIO_TX_HALF;
 317         s->play_pos = block_size;
 318     } else {
 319         s->status |= MP_AUDIO_TX_FULL;
 320         s->play_pos = 0;
 321     }
 322
 323     if (s->status & s->irq_enable)
 324         qemu_irq_raise(s->irq);
 325 }
 326
 327 static void musicpal_audio_clock_update(musicpal_audio_state *s)
 328 {
 329     int rate;
 330
 331     if (s->playback_mode & MP_AUDIO_CLOCK_24MHZ)
 332         rate = 24576000 / 64; /* 24.576MHz */
 333     else
 334         rate = 11289600 / 64; /* 11.2896MHz */
 335
 336     rate /= ((s->clock_div >> 8) & 0xff) + 1;
 337
 338     wm8750_set_bclk_in(s->wm, rate);
 339 }
 340
 341 static uint32_t musicpal_audio_read(void *opaque, target_phys_addr_t offset)
 342 {
 343     musicpal_audio_state *s = opaque;
 344
 345     switch (offset) {
 346     case MP_AUDIO_PLAYBACK_MODE:
 347         return s->playback_mode;
 348
 349     case MP_AUDIO_CLOCK_DIV:
 350         return s->clock_div;
 351
 352     case MP_AUDIO_IRQ_STATUS:
 353         return s->status;
 354
 355     case MP_AUDIO_IRQ_ENABLE:
 356         return s->irq_enable;
 357
 358     case MP_AUDIO_TX_STATUS:
 359         return s->play_pos >> 2;
 360
 361     default:
 362         return 0;
 363     }
 364 }
 365
 366 static void musicpal_audio_write(void *opaque, target_phys_addr_t offset,
 367                                  uint32_t value)
 368 {
 369     musicpal_audio_state *s = opaque;
 370
 371     switch (offset) {
 372     case MP_AUDIO_PLAYBACK_MODE:
 373         if (value & MP_AUDIO_PLAYBACK_EN &&
 374             !(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
 375             s->status = 0;
 376             s->last_free = 0;
 377             s->play_pos = 0;
 378         }
 379         s->playback_mode = value;
 380         musicpal_audio_clock_update(s);
 381         break;
 382
 383     case MP_AUDIO_CLOCK_DIV:
 384         s->clock_div = value;
 385         s->last_free = 0;
 386         s->play_pos = 0;
 387         musicpal_audio_clock_update(s);
 388         break;
 389
 390     case MP_AUDIO_IRQ_STATUS:
 391         s->status &= ~value;
 392         break;
 393
 394     case MP_AUDIO_IRQ_ENABLE:
 395         s->irq_enable = value;
 396         if (s->status & s->irq_enable)
 397             qemu_irq_raise(s->irq);
 398         break;
 399
 400     case MP_AUDIO_TX_START_LO:
 401         s->phys_buf = (s->phys_buf & 0xFFFF0000) | (value & 0xFFFF);
 402         s->target_buffer = target2host_addr(s->phys_buf);
 403         s->play_pos = 0;
 404         s->last_free = 0;
 405         break;
 406
 407     case MP_AUDIO_TX_THRESHOLD:
 408         s->threshold = (value + 1) * 4;
 409         break;
 410
 411     case MP_AUDIO_TX_START_HI:
 412         s->phys_buf = (s->phys_buf & 0xFFFF) | (value << 16);
 413         s->target_buffer = target2host_addr(s->phys_buf);
 414         s->play_pos = 0;
 415         s->last_free = 0;
 416         break;
 417     }
 418 }
 419
 420 static void musicpal_audio_reset(void *opaque)
 421 {
 422     musicpal_audio_state *s = opaque;
 423
 424     s->playback_mode = 0;
 425     s->status = 0;
 426     s->irq_enable = 0;
 427 }
 428
 429 static CPUReadMemoryFunc *musicpal_audio_readfn[] = {
 430     musicpal_audio_read,
 431     musicpal_audio_read,
 432     musicpal_audio_read
 433 };
 434
 435 static CPUWriteMemoryFunc *musicpal_audio_writefn[] = {
 436     musicpal_audio_write,
 437     musicpal_audio_write,
 438     musicpal_audio_write
 439 };
 440
 441 static i2c_interface *musicpal_audio_init(qemu_irq irq)
 442 {
 443     AudioState *audio;
 444     musicpal_audio_state *s;
 445     i2c_interface *i2c;
 446     int iomemtype;
 447
 448     audio = AUD_init();
 449     if (!audio) {
 450         AUD_log(audio_name, "No audio state\n");
 451         return NULL;
 452     }
 453
 454     s = qemu_mallocz(sizeof(musicpal_audio_state));
 455     s->irq = irq;
 456
 457     i2c = qemu_mallocz(sizeof(i2c_interface));
 458     i2c->bus = i2c_init_bus();
 459     i2c->current_addr = -1;
 460
 461     s->wm = wm8750_init(i2c->bus, audio);
 462     if (!s->wm)
 463         return NULL;
 464     i2c_set_slave_address(s->wm, MP_WM_ADDR);
 465     wm8750_data_req_set(s->wm, audio_callback, s);
 466
 467     iomemtype = cpu_register_io_memory(0, musicpal_audio_readfn,
 468                        musicpal_audio_writefn, s);
 469     cpu_register_physical_memory(MP_AUDIO_BASE, MP_AUDIO_SIZE, iomemtype);
 470
 471     qemu_register_reset(musicpal_audio_reset, s);
 472
 473     return i2c;
 474 }
 475 #else  /* !HAS_AUDIO */
 476 static i2c_interface *musicpal_audio_init(qemu_irq irq)
 477 {
 478     return NULL;
 479 }
 480 #endif /* !HAS_AUDIO */
 481
 482 /* Ethernet register offsets */
 483 #define MP_ETH_SMIR             0x010
 484 #define MP_ETH_PCXR             0x408
 485 #define MP_ETH_SDCMR            0x448
 486 #define MP_ETH_ICR              0x450
 487 #define MP_ETH_IMR              0x458
 488 #define MP_ETH_FRDP0            0x480
 489 #define MP_ETH_FRDP1            0x484
 490 #define MP_ETH_FRDP2            0x488
 491 #define MP_ETH_FRDP3            0x48C
 492 #define MP_ETH_CRDP0            0x4A0
 493 #define MP_ETH_CRDP1            0x4A4
 494 #define MP_ETH_CRDP2            0x4A8
 495 #define MP_ETH_CRDP3            0x4AC
 496 #define MP_ETH_CTDP0            0x4E0
 497 #define MP_ETH_CTDP1            0x4E4
 498 #define MP_ETH_CTDP2            0x4E8
 499 #define MP_ETH_CTDP3            0x4EC
 500
 501 /* MII PHY access */
 502 #define MP_ETH_SMIR_DATA        0x0000FFFF
 503 #define MP_ETH_SMIR_ADDR        0x03FF0000
 504 #define MP_ETH_SMIR_OPCODE      (1 << 26) /* Read value */
 505 #define MP_ETH_SMIR_RDVALID     (1 << 27)
 506
 507 /* PHY registers */
 508 #define MP_ETH_PHY1_BMSR        0x00210000
 509 #define MP_ETH_PHY1_PHYSID1     0x00410000
 510 #define MP_ETH_PHY1_PHYSID2     0x00610000
 511
 512 #define MP_PHY_BMSR_LINK        0x0004
 513 #define MP_PHY_BMSR_AUTONEG     0x0008
 514
 515 #define MP_PHY_88E3015          0x01410E20
 516
 517 /* TX descriptor status */
 518 #define MP_ETH_TX_OWN           (1 << 31)
 519
 520 /* RX descriptor status */
 521 #define MP_ETH_RX_OWN           (1 << 31)
 522
 523 /* Interrupt cause/mask bits */
 524 #define MP_ETH_IRQ_RX_BIT       0
 525 #define MP_ETH_IRQ_RX           (1 << MP_ETH_IRQ_RX_BIT)
 526 #define MP_ETH_IRQ_TXHI_BIT     2
 527 #define MP_ETH_IRQ_TXLO_BIT     3
 528
 529 /* Port config bits */
 530 #define MP_ETH_PCXR_2BSM_BIT    28 /* 2-byte incoming suffix */
 531
 532 /* SDMA command bits */
 533 #define MP_ETH_CMD_TXHI         (1 << 23)
 534 #define MP_ETH_CMD_TXLO         (1 << 22)
 535
 536 typedef struct mv88w8618_tx_desc {
 537     uint32_t cmdstat;
 538     uint16_t res;
 539     uint16_t bytes;
 540     uint32_t buffer;
 541     uint32_t next;
 542 } mv88w8618_tx_desc;
 543
 544 typedef struct mv88w8618_rx_desc {
 545     uint32_t cmdstat;
 546     uint16_t bytes;
 547     uint16_t buffer_size;
 548     uint32_t buffer;
 549     uint32_t next;
 550 } mv88w8618_rx_desc;
 551
 552 typedef struct mv88w8618_eth_state {
 553     qemu_irq irq;
 554     uint32_t smir;
 555     uint32_t icr;
 556     uint32_t imr;
 557     int vlan_header;
 558     mv88w8618_tx_desc *tx_queue[2];
 559     mv88w8618_rx_desc *rx_queue[4];
 560     mv88w8618_rx_desc *frx_queue[4];
 561     mv88w8618_rx_desc *cur_rx[4];
 562     VLANClientState *vc;
 563 } mv88w8618_eth_state;
 564
 565 static int eth_can_receive(void *opaque)
 566 {
 567     return 1;
 568 }
 569
 570 static void eth_receive(void *opaque, const uint8_t *buf, int size)
 571 {
 572     mv88w8618_eth_state *s = opaque;
 573     mv88w8618_rx_desc *desc;
 574     int i;
 575
 576     for (i = 0; i < 4; i++) {
 577         desc = s->cur_rx[i];
 578         if (!desc)
 579             continue;
 580         do {
 581             if (le32_to_cpu(desc->cmdstat) & MP_ETH_RX_OWN &&
 582                 le16_to_cpu(desc->buffer_size) >= size) {
 583                 memcpy(target2host_addr(le32_to_cpu(desc->buffer) +
 584                                         s->vlan_header),
 585                        buf, size);
 586                 desc->bytes = cpu_to_le16(size + s->vlan_header);
 587                 desc->cmdstat &= cpu_to_le32(~MP_ETH_RX_OWN);
 588                 s->cur_rx[i] = target2host_addr(le32_to_cpu(desc->next));
 589
 590                 s->icr |= MP_ETH_IRQ_RX;
 591                 if (s->icr & s->imr)
 592                     qemu_irq_raise(s->irq);
 593                 return;
 594             }
 595             desc = target2host_addr(le32_to_cpu(desc->next));
 596         } while (desc != s->rx_queue[i]);
 597     }
 598 }
 599
 600 static void eth_send(mv88w8618_eth_state *s, int queue_index)
 601 {
 602     mv88w8618_tx_desc *desc = s->tx_queue[queue_index];
 603
 604     do {
 605         if (le32_to_cpu(desc->cmdstat) & MP_ETH_TX_OWN) {
 606             qemu_send_packet(s->vc,
 607                              target2host_addr(le32_to_cpu(desc->buffer)),
 608                              le16_to_cpu(desc->bytes));
 609             desc->cmdstat &= cpu_to_le32(~MP_ETH_TX_OWN);
 610             s->icr |= 1 << (MP_ETH_IRQ_TXLO_BIT - queue_index);
 611         }
 612         desc = target2host_addr(le32_to_cpu(desc->next));
 613     } while (desc != s->tx_queue[queue_index]);
 614 }
 615
 616 static uint32_t mv88w8618_eth_read(void *opaque, target_phys_addr_t offset)
 617 {
 618     mv88w8618_eth_state *s = opaque;
 619
 620     switch (offset) {
 621     case MP_ETH_SMIR:
 622         if (s->smir & MP_ETH_SMIR_OPCODE) {
 623             switch (s->smir & MP_ETH_SMIR_ADDR) {
 624             case MP_ETH_PHY1_BMSR:
 625                 return MP_PHY_BMSR_LINK | MP_PHY_BMSR_AUTONEG |
 626                        MP_ETH_SMIR_RDVALID;
 627             case MP_ETH_PHY1_PHYSID1:
 628                 return (MP_PHY_88E3015 >> 16) | MP_ETH_SMIR_RDVALID;
 629             case MP_ETH_PHY1_PHYSID2:
 630                 return (MP_PHY_88E3015 & 0xFFFF) | MP_ETH_SMIR_RDVALID;
 631             default:
 632                 return MP_ETH_SMIR_RDVALID;
 633             }
 634         }
 635         return 0;
 636
 637     case MP_ETH_ICR:
 638         return s->icr;
 639
 640     case MP_ETH_IMR:
 641         return s->imr;
 642
 643     case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 644         return host2target_addr(s->frx_queue[(offset - MP_ETH_FRDP0)/4]);
 645
 646     case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 647         return host2target_addr(s->rx_queue[(offset - MP_ETH_CRDP0)/4]);
 648
 649     case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
 650         return host2target_addr(s->tx_queue[(offset - MP_ETH_CTDP0)/4]);
 651
 652     default:
 653         return 0;
 654     }
 655 }
 656
 657 static void mv88w8618_eth_write(void *opaque, target_phys_addr_t offset,
 658                                 uint32_t value)
 659 {
 660     mv88w8618_eth_state *s = opaque;
 661
 662     switch (offset) {
 663     case MP_ETH_SMIR:
 664         s->smir = value;
 665         break;
 666
 667     case MP_ETH_PCXR:
 668         s->vlan_header = ((value >> MP_ETH_PCXR_2BSM_BIT) & 1) * 2;
 669         break;
 670
 671     case MP_ETH_SDCMR:
 672         if (value & MP_ETH_CMD_TXHI)
 673             eth_send(s, 1);
 674         if (value & MP_ETH_CMD_TXLO)
 675             eth_send(s, 0);
 676         if (value & (MP_ETH_CMD_TXHI | MP_ETH_CMD_TXLO) && s->icr & s->imr)
 677             qemu_irq_raise(s->irq);
 678         break;
 679
 680     case MP_ETH_ICR:
 681         s->icr &= value;
 682         break;
 683
 684     case MP_ETH_IMR:
 685         s->imr = value;
 686         if (s->icr & s->imr)
 687             qemu_irq_raise(s->irq);
 688         break;
 689
 690     case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
 691         s->frx_queue[(offset - MP_ETH_FRDP0)/4] = target2host_addr(value);
 692         break;
 693
 694     case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
 695         s->rx_queue[(offset - MP_ETH_CRDP0)/4] =
 696             s->cur_rx[(offset - MP_ETH_CRDP0)/4] = target2host_addr(value);
 697         break;
 698
 699     case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
 700         s->tx_queue[(offset - MP_ETH_CTDP0)/4] = target2host_addr(value);
 701         break;
 702     }
 703 }
 704
 705 static CPUReadMemoryFunc *mv88w8618_eth_readfn[] = {
 706     mv88w8618_eth_read,
 707     mv88w8618_eth_read,
 708     mv88w8618_eth_read
 709 };
 710
 711 static CPUWriteMemoryFunc *mv88w8618_eth_writefn[] = {
 712     mv88w8618_eth_write,
 713     mv88w8618_eth_write,
 714     mv88w8618_eth_write
 715 };
 716
 717 static void mv88w8618_eth_init(NICInfo *nd, uint32_t base, qemu_irq irq)
 718 {
 719     mv88w8618_eth_state *s;
 720     int iomemtype;
 721
 722     qemu_check_nic_model(nd, "mv88w8618");
 723
 724     s = qemu_mallocz(sizeof(mv88w8618_eth_state));
 725     s->irq = irq;
 726     s->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name,
 727                                  eth_receive, eth_can_receive, s);
 728     iomemtype = cpu_register_io_memory(0, mv88w8618_eth_readfn,
 729                                        mv88w8618_eth_writefn, s);
 730     cpu_register_physical_memory(base, MP_ETH_SIZE, iomemtype);
 731 }
 732
 733 /* LCD register offsets */
 734 #define MP_LCD_IRQCTRL          0x180
 735 #define MP_LCD_IRQSTAT          0x184
 736 #define MP_LCD_SPICTRL          0x1ac
 737 #define MP_LCD_INST             0x1bc
 738 #define MP_LCD_DATA             0x1c0
 739
 740 /* Mode magics */
 741 #define MP_LCD_SPI_DATA         0x00100011
 742 #define MP_LCD_SPI_CMD          0x00104011
 743 #define MP_LCD_SPI_INVALID      0x00000000
 744
 745 /* Commmands */
 746 #define MP_LCD_INST_SETPAGE0    0xB0
 747 /* ... */
 748 #define MP_LCD_INST_SETPAGE7    0xB7
 749
 750 #define MP_LCD_TEXTCOLOR        0xe0e0ff /* RRGGBB */
 751
 752 typedef struct musicpal_lcd_state {
 753     uint32_t mode;
 754     uint32_t irqctrl;
 755     int page;
 756     int page_off;
 757     DisplayState *ds;
 758     uint8_t video_ram[128*64/8];
 759 } musicpal_lcd_state;
 760
 761 static uint32_t lcd_brightness;
 762
 763 static uint8_t scale_lcd_color(uint8_t col)
 764 {
 765     int tmp = col;
 766
 767     switch (lcd_brightness) {
 768     case 0x00000007: /* 0 */
 769         return 0;
 770
 771     case 0x00020000: /* 1 */
 772         return (tmp * 1) / 7;
 773
 774     case 0x00020001: /* 2 */
 775         return (tmp * 2) / 7;
 776
 777     case 0x00040000: /* 3 */
 778         return (tmp * 3) / 7;
 779
 780     case 0x00010006: /* 4 */
 781         return (tmp * 4) / 7;
 782
 783     case 0x00020005: /* 5 */
 784         return (tmp * 5) / 7;
 785
 786     case 0x00040003: /* 6 */
 787         return (tmp * 6) / 7;
 788
 789     case 0x00030004: /* 7 */
 790     default:
 791         return col;
 792     }
 793 }
 794
 795 #define SET_LCD_PIXEL(depth, type) \
 796 static inline void glue(set_lcd_pixel, depth) \
 797         (musicpal_lcd_state *s, int x, int y, type col) \
 798 { \
 799     int dx, dy; \
 800     type *pixel = &((type *) ds_get_data(s->ds))[(y * 128 * 3 + x) * 3]; \
 801 \
 802     for (dy = 0; dy < 3; dy++, pixel += 127 * 3) \
 803         for (dx = 0; dx < 3; dx++, pixel++) \
 804             *pixel = col; \
 805 }
 806 SET_LCD_PIXEL(8, uint8_t)
 807 SET_LCD_PIXEL(16, uint16_t)
 808 SET_LCD_PIXEL(32, uint32_t)
 809
 810 #include "pixel_ops.h"
 811
 812 static void lcd_refresh(void *opaque)
 813 {
 814     musicpal_lcd_state *s = opaque;
 815     int x, y, col;
 816
 817     switch (ds_get_bits_per_pixel(s->ds)) {
 818     case 0:
 819         return;
 820 #define LCD_REFRESH(depth, func) \
 821     case depth: \
 822         col = func(scale_lcd_color((MP_LCD_TEXTCOLOR >> 16) & 0xff), \
 823                    scale_lcd_color((MP_LCD_TEXTCOLOR >> 8) & 0xff), \
 824                    scale_lcd_color(MP_LCD_TEXTCOLOR & 0xff)); \
 825         for (x = 0; x < 128; x++) \
 826             for (y = 0; y < 64; y++) \
 827                 if (s->video_ram[x + (y/8)*128] & (1 << (y % 8))) \
 828                     glue(set_lcd_pixel, depth)(s, x, y, col); \
 829                 else \
 830                     glue(set_lcd_pixel, depth)(s, x, y, 0); \
 831         break;
 832     LCD_REFRESH(8, rgb_to_pixel8)
 833     LCD_REFRESH(16, rgb_to_pixel16)
 834     LCD_REFRESH(32, rgb_to_pixel32)
 835     default:
 836         cpu_abort(cpu_single_env, "unsupported colour depth %i\n",
 837                   ds_get_bits_per_pixel(s->ds));
 838     }
 839
 840     dpy_update(s->ds, 0, 0, 128*3, 64*3);
 841 }
 842
 843 static void lcd_invalidate(void *opaque)
 844 {
 845 }
 846
 847 static uint32_t musicpal_lcd_read(void *opaque, target_phys_addr_t offset)
 848 {
 849     musicpal_lcd_state *s = opaque;
 850
 851     switch (offset) {
 852     case MP_LCD_IRQCTRL:
 853         return s->irqctrl;
 854
 855     default:
 856         return 0;
 857     }
 858 }
 859
 860 static void musicpal_lcd_write(void *opaque, target_phys_addr_t offset,
 861                                uint32_t value)
 862 {
 863     musicpal_lcd_state *s = opaque;
 864
 865     switch (offset) {
 866     case MP_LCD_IRQCTRL:
 867         s->irqctrl = value;
 868         break;
 869
 870     case MP_LCD_SPICTRL:
 871         if (value == MP_LCD_SPI_DATA || value == MP_LCD_SPI_CMD)
 872             s->mode = value;
 873         else
 874             s->mode = MP_LCD_SPI_INVALID;
 875         break;
 876
 877     case MP_LCD_INST:
 878         if (value >= MP_LCD_INST_SETPAGE0 && value <= MP_LCD_INST_SETPAGE7) {
 879             s->page = value - MP_LCD_INST_SETPAGE0;
 880             s->page_off = 0;
 881         }
 882         break;
 883
 884     case MP_LCD_DATA:
 885         if (s->mode == MP_LCD_SPI_CMD) {
 886             if (value >= MP_LCD_INST_SETPAGE0 &&
 887                 value <= MP_LCD_INST_SETPAGE7) {
 888                 s->page = value - MP_LCD_INST_SETPAGE0;
 889                 s->page_off = 0;
 890             }
 891         } else if (s->mode == MP_LCD_SPI_DATA) {
 892             s->video_ram[s->page*128 + s->page_off] = value;
 893             s->page_off = (s->page_off + 1) & 127;
 894         }
 895         break;
 896     }
 897 }
 898
 899 static CPUReadMemoryFunc *musicpal_lcd_readfn[] = {
 900     musicpal_lcd_read,
 901     musicpal_lcd_read,
 902     musicpal_lcd_read
 903 };
 904
 905 static CPUWriteMemoryFunc *musicpal_lcd_writefn[] = {
 906     musicpal_lcd_write,
 907     musicpal_lcd_write,
 908     musicpal_lcd_write
 909 };
 910
 911 static void musicpal_lcd_init(void)
 912 {
 913     musicpal_lcd_state *s;
 914     int iomemtype;
 915
 916     s = qemu_mallocz(sizeof(musicpal_lcd_state));
 917     iomemtype = cpu_register_io_memory(0, musicpal_lcd_readfn,
 918                                        musicpal_lcd_writefn, s);
 919     cpu_register_physical_memory(MP_LCD_BASE, MP_LCD_SIZE, iomemtype);
 920
 921     s->ds = graphic_console_init(lcd_refresh, lcd_invalidate,
 922                                  NULL, NULL, s);
 923     qemu_console_resize(s->ds, 128*3, 64*3);
 924 }
 925
 926 /* PIC register offsets */
 927 #define MP_PIC_STATUS           0x00
 928 #define MP_PIC_ENABLE_SET       0x08
 929 #define MP_PIC_ENABLE_CLR       0x0C
 930
 931 typedef struct mv88w8618_pic_state
 932 {
 933     uint32_t level;
 934     uint32_t enabled;
 935     qemu_irq parent_irq;
 936 } mv88w8618_pic_state;
 937
 938 static void mv88w8618_pic_update(mv88w8618_pic_state *s)
 939 {
 940     qemu_set_irq(s->parent_irq, (s->level & s->enabled));
 941 }
 942
 943 static void mv88w8618_pic_set_irq(void *opaque, int irq, int level)
 944 {
 945     mv88w8618_pic_state *s = opaque;
 946
 947     if (level)
 948         s->level |= 1 << irq;
 949     else
 950         s->level &= ~(1 << irq);
 951     mv88w8618_pic_update(s);
 952 }
 953
 954 static uint32_t mv88w8618_pic_read(void *opaque, target_phys_addr_t offset)
 955 {
 956     mv88w8618_pic_state *s = opaque;
 957
 958     switch (offset) {
 959     case MP_PIC_STATUS:
 960         return s->level & s->enabled;
 961
 962     default:
 963         return 0;
 964     }
 965 }
 966
 967 static void mv88w8618_pic_write(void *opaque, target_phys_addr_t offset,
 968                                 uint32_t value)
 969 {
 970     mv88w8618_pic_state *s = opaque;
 971
 972     switch (offset) {
 973     case MP_PIC_ENABLE_SET:
 974         s->enabled |= value;
 975         break;
 976
 977     case MP_PIC_ENABLE_CLR:
 978         s->enabled &= ~value;
 979         s->level &= ~value;
 980         break;
 981     }
 982     mv88w8618_pic_update(s);
 983 }
 984
 985 static void mv88w8618_pic_reset(void *opaque)
 986 {
 987     mv88w8618_pic_state *s = opaque;
 988
 989     s->level = 0;
 990     s->enabled = 0;
 991 }
 992
 993 static CPUReadMemoryFunc *mv88w8618_pic_readfn[] = {
 994     mv88w8618_pic_read,
 995     mv88w8618_pic_read,
 996     mv88w8618_pic_read
 997 };
 998
 999 static CPUWriteMemoryFunc *mv88w8618_pic_writefn[] = {
1000     mv88w8618_pic_write,
1001     mv88w8618_pic_write,
1002     mv88w8618_pic_write
1003 };
1004
1005 static qemu_irq *mv88w8618_pic_init(uint32_t base, qemu_irq parent_irq)
1006 {
1007     mv88w8618_pic_state *s;
1008     int iomemtype;
1009     qemu_irq *qi;
1010
1011     s = qemu_mallocz(sizeof(mv88w8618_pic_state));
1012     qi = qemu_allocate_irqs(mv88w8618_pic_set_irq, s, 32);
1013     s->parent_irq = parent_irq;
1014     iomemtype = cpu_register_io_memory(0, mv88w8618_pic_readfn,
1015                                        mv88w8618_pic_writefn, s);
1016     cpu_register_physical_memory(base, MP_PIC_SIZE, iomemtype);
1017
1018     qemu_register_reset(mv88w8618_pic_reset, s);
1019
1020     return qi;
1021 }
1022
1023 /* PIT register offsets */
1024 #define MP_PIT_TIMER1_LENGTH    0x00
1025 /* ... */
1026 #define MP_PIT_TIMER4_LENGTH    0x0C
1027 #define MP_PIT_CONTROL          0x10
1028 #define MP_PIT_TIMER1_VALUE     0x14
1029 /* ... */
1030 #define MP_PIT_TIMER4_VALUE     0x20
1031 #define MP_BOARD_RESET          0x34
1032
1033 /* Magic board reset value (probably some watchdog behind it) */
1034 #define MP_BOARD_RESET_MAGIC    0x10000
1035
1036 typedef struct mv88w8618_timer_state {
1037     ptimer_state *timer;
1038     uint32_t limit;
1039     int freq;
1040     qemu_irq irq;
1041 } mv88w8618_timer_state;
1042
1043 typedef struct mv88w8618_pit_state {
1044     void *timer[4];
1045     uint32_t control;
1046 } mv88w8618_pit_state;
1047
1048 static void mv88w8618_timer_tick(void *opaque)
1049 {
1050     mv88w8618_timer_state *s = opaque;
1051
1052     qemu_irq_raise(s->irq);
1053 }
1054
1055 static void *mv88w8618_timer_init(uint32_t freq, qemu_irq irq)
1056 {
1057     mv88w8618_timer_state *s;
1058     QEMUBH *bh;
1059
1060     s = qemu_mallocz(sizeof(mv88w8618_timer_state));
1061     s->irq = irq;
1062     s->freq = freq;
1063
1064     bh = qemu_bh_new(mv88w8618_timer_tick, s);
1065     s->timer = ptimer_init(bh);
1066
1067     return s;
1068 }
1069
1070 static uint32_t mv88w8618_pit_read(void *opaque, target_phys_addr_t offset)
1071 {
1072     mv88w8618_pit_state *s = opaque;
1073     mv88w8618_timer_state *t;
1074
1075     switch (offset) {
1076     case MP_PIT_TIMER1_VALUE ... MP_PIT_TIMER4_VALUE:
1077         t = s->timer[(offset-MP_PIT_TIMER1_VALUE) >> 2];
1078         return ptimer_get_count(t->timer);
1079
1080     default:
1081         return 0;
1082     }
1083 }
1084
1085 static void mv88w8618_pit_write(void *opaque, target_phys_addr_t offset,
1086                                 uint32_t value)
1087 {
1088     mv88w8618_pit_state *s = opaque;
1089     mv88w8618_timer_state *t;
1090     int i;
1091
1092     switch (offset) {
1093     case MP_PIT_TIMER1_LENGTH ... MP_PIT_TIMER4_LENGTH:
1094         t = s->timer[offset >> 2];
1095         t->limit = value;
1096         ptimer_set_limit(t->timer, t->limit, 1);
1097         break;
1098
1099     case MP_PIT_CONTROL:
1100         for (i = 0; i < 4; i++) {
1101             if (value & 0xf) {
1102                 t = s->timer[i];
1103                 ptimer_set_limit(t->timer, t->limit, 0);
1104                 ptimer_set_freq(t->timer, t->freq);
1105                 ptimer_run(t->timer, 0);
1106             }
1107             value >>= 4;
1108         }
1109         break;
1110
1111     case MP_BOARD_RESET:
1112         if (value == MP_BOARD_RESET_MAGIC)
1113             qemu_system_reset_request();
1114         break;
1115     }
1116 }
1117
1118 static CPUReadMemoryFunc *mv88w8618_pit_readfn[] = {
1119     mv88w8618_pit_read,
1120     mv88w8618_pit_read,
1121     mv88w8618_pit_read
1122 };
1123
1124 static CPUWriteMemoryFunc *mv88w8618_pit_writefn[] = {
1125     mv88w8618_pit_write,
1126     mv88w8618_pit_write,
1127     mv88w8618_pit_write
1128 };
1129
1130 static void mv88w8618_pit_init(uint32_t base, qemu_irq *pic, int irq)
1131 {
1132     int iomemtype;
1133     mv88w8618_pit_state *s;
1134
1135     s = qemu_mallocz(sizeof(mv88w8618_pit_state));
1136
1137     /* Letting them all run at 1 MHz is likely just a pragmatic
1138      * simplification. */
1139     s->timer[0] = mv88w8618_timer_init(1000000, pic[irq]);
1140     s->timer[1] = mv88w8618_timer_init(1000000, pic[irq + 1]);
1141     s->timer[2] = mv88w8618_timer_init(1000000, pic[irq + 2]);
1142     s->timer[3] = mv88w8618_timer_init(1000000, pic[irq + 3]);
1143
1144     iomemtype = cpu_register_io_memory(0, mv88w8618_pit_readfn,
1145                                        mv88w8618_pit_writefn, s);
1146     cpu_register_physical_memory(base, MP_PIT_SIZE, iomemtype);
1147 }
1148
1149 /* Flash config register offsets */
1150 #define MP_FLASHCFG_CFGR0    0x04
1151
1152 typedef struct mv88w8618_flashcfg_state {
1153     uint32_t cfgr0;
1154 } mv88w8618_flashcfg_state;
1155
1156 static uint32_t mv88w8618_flashcfg_read(void *opaque,
1157                                         target_phys_addr_t offset)
1158 {
1159     mv88w8618_flashcfg_state *s = opaque;
1160
1161     switch (offset) {
1162     case MP_FLASHCFG_CFGR0:
1163         return s->cfgr0;
1164
1165     default:
1166         return 0;
1167     }
1168 }
1169
1170 static void mv88w8618_flashcfg_write(void *opaque, target_phys_addr_t offset,
1171                                      uint32_t value)
1172 {
1173     mv88w8618_flashcfg_state *s = opaque;
1174
1175     switch (offset) {
1176     case MP_FLASHCFG_CFGR0:
1177         s->cfgr0 = value;
1178         break;
1179     }
1180 }
1181
1182 static CPUReadMemoryFunc *mv88w8618_flashcfg_readfn[] = {
1183     mv88w8618_flashcfg_read,
1184     mv88w8618_flashcfg_read,
1185     mv88w8618_flashcfg_read
1186 };
1187
1188 static CPUWriteMemoryFunc *mv88w8618_flashcfg_writefn[] = {
1189     mv88w8618_flashcfg_write,
1190     mv88w8618_flashcfg_write,
1191     mv88w8618_flashcfg_write
1192 };
1193
1194 static void mv88w8618_flashcfg_init(uint32_t base)
1195 {
1196     int iomemtype;
1197     mv88w8618_flashcfg_state *s;
1198
1199     s = qemu_mallocz(sizeof(mv88w8618_flashcfg_state));
1200
1201     s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
1202     iomemtype = cpu_register_io_memory(0, mv88w8618_flashcfg_readfn,
1203                        mv88w8618_flashcfg_writefn, s);
1204     cpu_register_physical_memory(base, MP_FLASHCFG_SIZE, iomemtype);
1205 }
1206
1207 /* Misc register offsets */
1208 #define MP_MISC_BOARD_REVISION  0x18
1209
1210 #define MP_BOARD_REVISION       0x31
1211
1212 static uint32_t musicpal_misc_read(void *opaque, target_phys_addr_t offset)
1213 {
1214     switch (offset) {
1215     case MP_MISC_BOARD_REVISION:
1216         return MP_BOARD_REVISION;
1217
1218     default:
1219         return 0;
1220     }
1221 }
1222
1223 static void musicpal_misc_write(void *opaque, target_phys_addr_t offset,
1224                                 uint32_t value)
1225 {
1226 }
1227
1228 static CPUReadMemoryFunc *musicpal_misc_readfn[] = {
1229     musicpal_misc_read,
1230     musicpal_misc_read,
1231     musicpal_misc_read,
1232 };
1233
1234 static CPUWriteMemoryFunc *musicpal_misc_writefn[] = {
1235     musicpal_misc_write,
1236     musicpal_misc_write,
1237     musicpal_misc_write,
1238 };
1239
1240 static void musicpal_misc_init(void)
1241 {
1242     int iomemtype;
1243
1244     iomemtype = cpu_register_io_memory(0, musicpal_misc_readfn,
1245                                        musicpal_misc_writefn, NULL);
1246     cpu_register_physical_memory(MP_MISC_BASE, MP_MISC_SIZE, iomemtype);
1247 }
1248
1249 /* WLAN register offsets */
1250 #define MP_WLAN_MAGIC1          0x11c
1251 #define MP_WLAN_MAGIC2          0x124
1252
1253 static uint32_t mv88w8618_wlan_read(void *opaque, target_phys_addr_t offset)
1254 {
1255     switch (offset) {
1256     /* Workaround to allow loading the binary-only wlandrv.ko crap
1257      * from the original Freecom firmware. */
1258     case MP_WLAN_MAGIC1:
1259         return ~3;
1260     case MP_WLAN_MAGIC2:
1261         return -1;
1262
1263     default:
1264         return 0;
1265     }
1266 }
1267
1268 static void mv88w8618_wlan_write(void *opaque, target_phys_addr_t offset,
1269                                  uint32_t value)
1270 {
1271 }
1272
1273 static CPUReadMemoryFunc *mv88w8618_wlan_readfn[] = {
1274     mv88w8618_wlan_read,
1275     mv88w8618_wlan_read,
1276     mv88w8618_wlan_read,
1277 };
1278
1279 static CPUWriteMemoryFunc *mv88w8618_wlan_writefn[] = {
1280     mv88w8618_wlan_write,
1281     mv88w8618_wlan_write,
1282     mv88w8618_wlan_write,
1283 };
1284
1285 static void mv88w8618_wlan_init(uint32_t base)
1286 {
1287     int iomemtype;
1288
1289     iomemtype = cpu_register_io_memory(0, mv88w8618_wlan_readfn,
1290                                        mv88w8618_wlan_writefn, NULL);
1291     cpu_register_physical_memory(base, MP_WLAN_SIZE, iomemtype);
1292 }
1293
1294 /* GPIO register offsets */
1295 #define MP_GPIO_OE_LO           0x008
1296 #define MP_GPIO_OUT_LO          0x00c
1297 #define MP_GPIO_IN_LO           0x010
1298 #define MP_GPIO_ISR_LO          0x020
1299 #define MP_GPIO_OE_HI           0x508
1300 #define MP_GPIO_OUT_HI          0x50c
1301 #define MP_GPIO_IN_HI           0x510
1302 #define MP_GPIO_ISR_HI          0x520
1303
1304 /* GPIO bits & masks */
1305 #define MP_GPIO_WHEEL_VOL       (1 << 8)
1306 #define MP_GPIO_WHEEL_VOL_INV   (1 << 9)
1307 #define MP_GPIO_WHEEL_NAV       (1 << 10)
1308 #define MP_GPIO_WHEEL_NAV_INV   (1 << 11)
1309 #define MP_GPIO_LCD_BRIGHTNESS  0x00070000
1310 #define MP_GPIO_BTN_FAVORITS    (1 << 19)
1311 #define MP_GPIO_BTN_MENU        (1 << 20)
1312 #define MP_GPIO_BTN_VOLUME      (1 << 21)
1313 #define MP_GPIO_BTN_NAVIGATION  (1 << 22)
1314 #define MP_GPIO_I2C_DATA_BIT    29
1315 #define MP_GPIO_I2C_DATA        (1 << MP_GPIO_I2C_DATA_BIT)
1316 #define MP_GPIO_I2C_CLOCK_BIT   30
1317
1318 /* LCD brightness bits in GPIO_OE_HI */
1319 #define MP_OE_LCD_BRIGHTNESS    0x0007
1320
1321 static uint32_t musicpal_gpio_read(void *opaque, target_phys_addr_t offset)
1322 {
1323     switch (offset) {
1324     case MP_GPIO_OE_HI: /* used for LCD brightness control */
1325         return lcd_brightness & MP_OE_LCD_BRIGHTNESS;
1326
1327     case MP_GPIO_OUT_LO:
1328         return gpio_out_state & 0xFFFF;
1329     case MP_GPIO_OUT_HI:
1330         return gpio_out_state >> 16;
1331
1332     case MP_GPIO_IN_LO:
1333         return gpio_in_state & 0xFFFF;
1334     case MP_GPIO_IN_HI:
1335         /* Update received I2C data */
1336         gpio_in_state = (gpio_in_state & ~MP_GPIO_I2C_DATA) |
1337                         (i2c_get_data(mixer_i2c) << MP_GPIO_I2C_DATA_BIT);
1338         return gpio_in_state >> 16;
1339
1340     case MP_GPIO_ISR_LO:
1341         return gpio_isr & 0xFFFF;
1342     case MP_GPIO_ISR_HI:
1343         return gpio_isr >> 16;
1344
1345     default:
1346         return 0;
1347     }
1348 }
1349
1350 static void musicpal_gpio_write(void *opaque, target_phys_addr_t offset,
1351                                 uint32_t value)
1352 {
1353     switch (offset) {
1354     case MP_GPIO_OE_HI: /* used for LCD brightness control */
1355         lcd_brightness = (lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
1356                          (value & MP_OE_LCD_BRIGHTNESS);
1357         break;
1358
1359     case MP_GPIO_OUT_LO:
1360         gpio_out_state = (gpio_out_state & 0xFFFF0000) | (value & 0xFFFF);
1361         break;
1362     case MP_GPIO_OUT_HI:
1363         gpio_out_state = (gpio_out_state & 0xFFFF) | (value << 16);
1364         lcd_brightness = (lcd_brightness & 0xFFFF) |
1365                          (gpio_out_state & MP_GPIO_LCD_BRIGHTNESS);
1366         i2c_state_update(mixer_i2c,
1367                          (gpio_out_state >> MP_GPIO_I2C_DATA_BIT) & 1,
1368                          (gpio_out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
1369         break;
1370
1371     }
1372 }
1373
1374 static CPUReadMemoryFunc *musicpal_gpio_readfn[] = {
1375     musicpal_gpio_read,
1376     musicpal_gpio_read,
1377     musicpal_gpio_read,
1378 };
1379
1380 static CPUWriteMemoryFunc *musicpal_gpio_writefn[] = {
1381     musicpal_gpio_write,
1382     musicpal_gpio_write,
1383     musicpal_gpio_write,
1384 };
1385
1386 static void musicpal_gpio_init(void)
1387 {
1388     int iomemtype;
1389
1390     iomemtype = cpu_register_io_memory(0, musicpal_gpio_readfn,
1391                                        musicpal_gpio_writefn, NULL);
1392     cpu_register_physical_memory(MP_GPIO_BASE, MP_GPIO_SIZE, iomemtype);
1393 }
1394
1395 /* Keyboard codes & masks */
1396 #define KEY_RELEASED            0x80
1397 #define KEY_CODE                0x7f
1398
1399 #define KEYCODE_TAB             0x0f
1400 #define KEYCODE_ENTER           0x1c
1401 #define KEYCODE_F               0x21
1402 #define KEYCODE_M               0x32
1403
1404 #define KEYCODE_EXTENDED        0xe0
1405 #define KEYCODE_UP              0x48
1406 #define KEYCODE_DOWN            0x50
1407 #define KEYCODE_LEFT            0x4b
1408 #define KEYCODE_RIGHT           0x4d
1409
1410 static void musicpal_key_event(void *opaque, int keycode)
1411 {
1412     qemu_irq irq = opaque;
1413     uint32_t event = 0;
1414     static int kbd_extended;
1415
1416     if (keycode == KEYCODE_EXTENDED) {
1417         kbd_extended = 1;
1418         return;
1419     }
1420
1421     if (kbd_extended)
1422         switch (keycode & KEY_CODE) {
1423         case KEYCODE_UP:
1424             event = MP_GPIO_WHEEL_NAV | MP_GPIO_WHEEL_NAV_INV;
1425             break;
1426
1427         case KEYCODE_DOWN:
1428             event = MP_GPIO_WHEEL_NAV;
1429             break;
1430
1431         case KEYCODE_LEFT:
1432             event = MP_GPIO_WHEEL_VOL | MP_GPIO_WHEEL_VOL_INV;
1433             break;
1434
1435         case KEYCODE_RIGHT:
1436             event = MP_GPIO_WHEEL_VOL;
1437             break;
1438         }
1439     else {
1440         switch (keycode & KEY_CODE) {
1441         case KEYCODE_F:
1442             event = MP_GPIO_BTN_FAVORITS;
1443             break;
1444
1445         case KEYCODE_TAB:
1446             event = MP_GPIO_BTN_VOLUME;
1447             break;
1448
1449         case KEYCODE_ENTER:
1450             event = MP_GPIO_BTN_NAVIGATION;
1451             break;
1452
1453         case KEYCODE_M:
1454             event = MP_GPIO_BTN_MENU;
1455             break;
1456         }
1457         /* Do not repeat already pressed buttons */
1458         if (!(keycode & KEY_RELEASED) && !(gpio_in_state & event))
1459             event = 0;
1460     }
1461
1462     if (event) {
1463         if (keycode & KEY_RELEASED) {
1464             gpio_in_state |= event;
1465         } else {
1466             gpio_in_state &= ~event;
1467             gpio_isr = event;
1468             qemu_irq_raise(irq);
1469         }
1470     }
1471
1472     kbd_extended = 0;
1473 }
1474
1475 static struct arm_boot_info musicpal_binfo = {
1476     .loader_start = 0x0,
1477     .board_id = 0x20e,
1478 };
1479
1480 static void musicpal_init(ram_addr_t ram_size, int vga_ram_size,
1481                const char *boot_device,
1482                const char *kernel_filename, const char *kernel_cmdline,
1483                const char *initrd_filename, const char *cpu_model)
1484 {
1485     CPUState *env;
1486     qemu_irq *pic;
1487     int index;
1488     unsigned long flash_size;
1489
1490     if (!cpu_model)
1491         cpu_model = "arm926";
1492
1493     env = cpu_init(cpu_model);
1494     if (!env) {
1495         fprintf(stderr, "Unable to find CPU definition\n");
1496         exit(1);
1497     }
1498     pic = arm_pic_init_cpu(env);
1499
1500     /* For now we use a fixed - the original - RAM size */
1501     cpu_register_physical_memory(0, MP_RAM_DEFAULT_SIZE,
1502                                  qemu_ram_alloc(MP_RAM_DEFAULT_SIZE));
1503
1504     sram_off = qemu_ram_alloc(MP_SRAM_SIZE);
1505     cpu_register_physical_memory(MP_SRAM_BASE, MP_SRAM_SIZE, sram_off);
1506
1507     pic = mv88w8618_pic_init(MP_PIC_BASE, pic[ARM_PIC_CPU_IRQ]);
1508     mv88w8618_pit_init(MP_PIT_BASE, pic, MP_TIMER1_IRQ);
1509
1510     if (serial_hds[0])
1511         serial_mm_init(MP_UART1_BASE, 2, pic[MP_UART1_IRQ], 1825000,
1512                    serial_hds[0], 1);
1513     if (serial_hds[1])
1514         serial_mm_init(MP_UART2_BASE, 2, pic[MP_UART2_IRQ], 1825000,
1515                    serial_hds[1], 1);
1516
1517     /* Register flash */
1518     index = drive_get_index(IF_PFLASH, 0, 0);
1519     if (index != -1) {
1520         flash_size = bdrv_getlength(drives_table[index].bdrv);
1521         if (flash_size != 8*1024*1024 && flash_size != 16*1024*1024 &&
1522             flash_size != 32*1024*1024) {
1523             fprintf(stderr, "Invalid flash image size\n");
1524             exit(1);
1525         }
1526
1527         /*
1528          * The original U-Boot accesses the flash at 0xFE000000 instead of
1529          * 0xFF800000 (if there is 8 MB flash). So remap flash access if the
1530          * image is smaller than 32 MB.
1531          */
1532         pflash_cfi02_register(0-MP_FLASH_SIZE_MAX, qemu_ram_alloc(flash_size),
1533                               drives_table[index].bdrv, 0x10000,
1534                               (flash_size + 0xffff) >> 16,
1535                               MP_FLASH_SIZE_MAX / flash_size,
1536                               2, 0x00BF, 0x236D, 0x0000, 0x0000,
1537                               0x5555, 0x2AAA);
1538     }
1539     mv88w8618_flashcfg_init(MP_FLASHCFG_BASE);
1540
1541     musicpal_lcd_init();
1542
1543     qemu_add_kbd_event_handler(musicpal_key_event, pic[MP_GPIO_IRQ]);
1544
1545     mv88w8618_eth_init(&nd_table[0], MP_ETH_BASE, pic[MP_ETH_IRQ]);
1546
1547     mixer_i2c = musicpal_audio_init(pic[MP_AUDIO_IRQ]);
1548
1549     mv88w8618_wlan_init(MP_WLAN_BASE);
1550
1551     musicpal_misc_init();
1552     musicpal_gpio_init();
1553
1554     musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
1555     musicpal_binfo.kernel_filename = kernel_filename;
1556     musicpal_binfo.kernel_cmdline = kernel_cmdline;
1557     musicpal_binfo.initrd_filename = initrd_filename;
1558     arm_load_kernel(env, &musicpal_binfo);
1559 }
1560
1561 QEMUMachine musicpal_machine = {
1562     .name = "musicpal",
1563     .desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)",
1564     .init = musicpal_init,
1565     .ram_require = MP_RAM_DEFAULT_SIZE + MP_SRAM_SIZE +
1566             MP_FLASH_SIZE_MAX + RAMSIZE_FIXED,
1567 };