2
* Marvell MV88W8618 / Freecom MusicPal emulation.
4
* Copyright (c) 2008 Jan Kiszka
6
* This code is licenced under the GNU GPL v2.
16
#include "qemu-timer.h"
20
#include "audio/audio.h"
23
#define MP_ETH_BASE 0x80008000
24
#define MP_ETH_SIZE 0x00001000
26
#define MP_UART1_BASE 0x8000C840
27
#define MP_UART2_BASE 0x8000C940
29
#define MP_FLASHCFG_BASE 0x90006000
30
#define MP_FLASHCFG_SIZE 0x00001000
32
#define MP_AUDIO_BASE 0x90007000
33
#define MP_AUDIO_SIZE 0x00001000
35
#define MP_PIC_BASE 0x90008000
36
#define MP_PIC_SIZE 0x00001000
38
#define MP_PIT_BASE 0x90009000
39
#define MP_PIT_SIZE 0x00001000
41
#define MP_LCD_BASE 0x9000c000
42
#define MP_LCD_SIZE 0x00001000
44
#define MP_SRAM_BASE 0xC0000000
45
#define MP_SRAM_SIZE 0x00020000
47
#define MP_RAM_DEFAULT_SIZE 32*1024*1024
48
#define MP_FLASH_SIZE_MAX 32*1024*1024
50
#define MP_TIMER1_IRQ 4
52
#define MP_TIMER4_IRQ 7
55
#define MP_UART1_IRQ 11
56
#define MP_UART2_IRQ 11
57
#define MP_GPIO_IRQ 12
59
#define MP_AUDIO_IRQ 30
61
static uint32_t gpio_in_state = 0xffffffff;
62
static uint32_t gpio_isr;
63
static uint32_t gpio_out_state;
64
static ram_addr_t sram_off;
66
/* Address conversion helpers */
67
static void *target2host_addr(uint32_t addr)
69
if (addr < MP_SRAM_BASE) {
70
if (addr >= MP_RAM_DEFAULT_SIZE)
72
return (void *)(phys_ram_base + addr);
74
if (addr >= MP_SRAM_BASE + MP_SRAM_SIZE)
76
return (void *)(phys_ram_base + sram_off + addr - MP_SRAM_BASE);
80
static uint32_t host2target_addr(void *addr)
82
if (addr < ((void *)phys_ram_base) + sram_off)
83
return (unsigned long)addr - (unsigned long)phys_ram_base;
85
return (unsigned long)addr - (unsigned long)phys_ram_base -
86
sram_off + MP_SRAM_BASE;
90
typedef enum i2c_state {
113
typedef struct i2c_interface {
122
static void i2c_enter_stop(i2c_interface *i2c)
124
if (i2c->current_addr >= 0)
125
i2c_end_transfer(i2c->bus);
126
i2c->current_addr = -1;
127
i2c->state = STOPPED;
130
static void i2c_state_update(i2c_interface *i2c, int data, int clock)
135
switch (i2c->state) {
137
if (data == 0 && i2c->last_data == 1 && clock == 1)
138
i2c->state = INITIALIZING;
142
if (clock == 0 && i2c->last_clock == 1 && data == 0)
143
i2c->state = SENDING_BIT7;
148
case SENDING_BIT7 ... SENDING_BIT0:
149
if (clock == 0 && i2c->last_clock == 1) {
150
i2c->buffer = (i2c->buffer << 1) | data;
151
i2c->state++; /* will end up in WAITING_FOR_ACK */
152
} else if (data == 1 && i2c->last_data == 0 && clock == 1)
156
case WAITING_FOR_ACK:
157
if (clock == 0 && i2c->last_clock == 1) {
158
if (i2c->current_addr < 0) {
159
i2c->current_addr = i2c->buffer;
160
i2c_start_transfer(i2c->bus, i2c->current_addr & 0xfe,
163
i2c_send(i2c->bus, i2c->buffer);
164
if (i2c->current_addr & 1) {
165
i2c->state = RECEIVING_BIT7;
166
i2c->buffer = i2c_recv(i2c->bus);
168
i2c->state = SENDING_BIT7;
169
} else if (data == 1 && i2c->last_data == 0 && clock == 1)
173
case RECEIVING_BIT7 ... RECEIVING_BIT0:
174
if (clock == 0 && i2c->last_clock == 1) {
175
i2c->state++; /* will end up in SENDING_ACK */
177
} else if (data == 1 && i2c->last_data == 0 && clock == 1)
182
if (clock == 0 && i2c->last_clock == 1) {
183
i2c->state = RECEIVING_BIT7;
185
i2c->buffer = i2c_recv(i2c->bus);
188
} else if (data == 1 && i2c->last_data == 0 && clock == 1)
193
i2c->last_data = data;
194
i2c->last_clock = clock;
197
static int i2c_get_data(i2c_interface *i2c)
202
switch (i2c->state) {
203
case RECEIVING_BIT7 ... RECEIVING_BIT0:
204
return (i2c->buffer >> 7);
206
case WAITING_FOR_ACK:
212
static i2c_interface *mixer_i2c;
216
/* Audio register offsets */
217
#define MP_AUDIO_PLAYBACK_MODE 0x00
218
#define MP_AUDIO_CLOCK_DIV 0x18
219
#define MP_AUDIO_IRQ_STATUS 0x20
220
#define MP_AUDIO_IRQ_ENABLE 0x24
221
#define MP_AUDIO_TX_START_LO 0x28
222
#define MP_AUDIO_TX_THRESHOLD 0x2C
223
#define MP_AUDIO_TX_STATUS 0x38
224
#define MP_AUDIO_TX_START_HI 0x40
226
/* Status register and IRQ enable bits */
227
#define MP_AUDIO_TX_HALF (1 << 6)
228
#define MP_AUDIO_TX_FULL (1 << 7)
230
/* Playback mode bits */
231
#define MP_AUDIO_16BIT_SAMPLE (1 << 0)
232
#define MP_AUDIO_PLAYBACK_EN (1 << 7)
233
#define MP_AUDIO_CLOCK_24MHZ (1 << 9)
234
#define MP_AUDIO_MONO (1 << 14)
236
/* Wolfson 8750 I2C address */
237
#define MP_WM_ADDR 0x34
239
static const char audio_name[] = "mv88w8618";
241
typedef struct musicpal_audio_state {
243
uint32_t playback_mode;
246
unsigned long phys_buf;
247
int8_t *target_buffer;
248
unsigned int threshold;
249
unsigned int play_pos;
250
unsigned int last_free;
253
} musicpal_audio_state;
255
static void audio_callback(void *opaque, int free_out, int free_in)
257
musicpal_audio_state *s = opaque;
258
int16_t *codec_buffer;
262
if (!(s->playback_mode & MP_AUDIO_PLAYBACK_EN))
265
if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE)
268
if (!(s->playback_mode & MP_AUDIO_MONO))
271
block_size = s->threshold/2;
272
if (free_out - s->last_free < block_size)
275
mem_buffer = s->target_buffer + s->play_pos;
276
if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
277
if (s->playback_mode & MP_AUDIO_MONO) {
278
codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
279
for (pos = 0; pos < block_size; pos += 2) {
280
*codec_buffer++ = *(int16_t *)mem_buffer;
281
*codec_buffer++ = *(int16_t *)mem_buffer;
285
memcpy(wm8750_dac_buffer(s->wm, block_size >> 2),
286
(uint32_t *)mem_buffer, block_size);
288
if (s->playback_mode & MP_AUDIO_MONO) {
289
codec_buffer = wm8750_dac_buffer(s->wm, block_size);
290
for (pos = 0; pos < block_size; pos++) {
291
*codec_buffer++ = cpu_to_le16(256 * *mem_buffer);
292
*codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
295
codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
296
for (pos = 0; pos < block_size; pos += 2) {
297
*codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
298
*codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
302
wm8750_dac_commit(s->wm);
304
s->last_free = free_out - block_size;
306
if (s->play_pos == 0) {
307
s->status |= MP_AUDIO_TX_HALF;
308
s->play_pos = block_size;
310
s->status |= MP_AUDIO_TX_FULL;
314
if (s->status & s->irq_enable)
315
qemu_irq_raise(s->irq);
318
static void musicpal_audio_clock_update(musicpal_audio_state *s)
322
if (s->playback_mode & MP_AUDIO_CLOCK_24MHZ)
323
rate = 24576000 / 64; /* 24.576MHz */
325
rate = 11289600 / 64; /* 11.2896MHz */
327
rate /= ((s->clock_div >> 8) & 0xff) + 1;
329
wm8750_set_bclk_in(s->wm, rate);
332
static uint32_t musicpal_audio_read(void *opaque, target_phys_addr_t offset)
334
musicpal_audio_state *s = opaque;
337
case MP_AUDIO_PLAYBACK_MODE:
338
return s->playback_mode;
340
case MP_AUDIO_CLOCK_DIV:
343
case MP_AUDIO_IRQ_STATUS:
346
case MP_AUDIO_IRQ_ENABLE:
347
return s->irq_enable;
349
case MP_AUDIO_TX_STATUS:
350
return s->play_pos >> 2;
357
static void musicpal_audio_write(void *opaque, target_phys_addr_t offset,
360
musicpal_audio_state *s = opaque;
363
case MP_AUDIO_PLAYBACK_MODE:
364
if (value & MP_AUDIO_PLAYBACK_EN &&
365
!(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
370
s->playback_mode = value;
371
musicpal_audio_clock_update(s);
374
case MP_AUDIO_CLOCK_DIV:
375
s->clock_div = value;
378
musicpal_audio_clock_update(s);
381
case MP_AUDIO_IRQ_STATUS:
385
case MP_AUDIO_IRQ_ENABLE:
386
s->irq_enable = value;
387
if (s->status & s->irq_enable)
388
qemu_irq_raise(s->irq);
391
case MP_AUDIO_TX_START_LO:
392
s->phys_buf = (s->phys_buf & 0xFFFF0000) | (value & 0xFFFF);
393
s->target_buffer = target2host_addr(s->phys_buf);
398
case MP_AUDIO_TX_THRESHOLD:
399
s->threshold = (value + 1) * 4;
402
case MP_AUDIO_TX_START_HI:
403
s->phys_buf = (s->phys_buf & 0xFFFF) | (value << 16);
404
s->target_buffer = target2host_addr(s->phys_buf);
411
static void musicpal_audio_reset(void *opaque)
413
musicpal_audio_state *s = opaque;
415
s->playback_mode = 0;
420
static CPUReadMemoryFunc *musicpal_audio_readfn[] = {
426
static CPUWriteMemoryFunc *musicpal_audio_writefn[] = {
427
musicpal_audio_write,
428
musicpal_audio_write,
432
static i2c_interface *musicpal_audio_init(uint32_t base, qemu_irq irq)
435
musicpal_audio_state *s;
441
AUD_log(audio_name, "No audio state\n");
445
s = qemu_mallocz(sizeof(musicpal_audio_state));
448
i2c = qemu_mallocz(sizeof(i2c_interface));
449
i2c->bus = i2c_init_bus();
450
i2c->current_addr = -1;
452
s->wm = wm8750_init(i2c->bus, audio);
455
i2c_set_slave_address(s->wm, MP_WM_ADDR);
456
wm8750_data_req_set(s->wm, audio_callback, s);
458
iomemtype = cpu_register_io_memory(0, musicpal_audio_readfn,
459
musicpal_audio_writefn, s);
460
cpu_register_physical_memory(base, MP_AUDIO_SIZE, iomemtype);
462
qemu_register_reset(musicpal_audio_reset, s);
466
#else /* !HAS_AUDIO */
467
static i2c_interface *musicpal_audio_init(uint32_t base, qemu_irq irq)
471
#endif /* !HAS_AUDIO */
473
/* Ethernet register offsets */
474
#define MP_ETH_SMIR 0x010
475
#define MP_ETH_PCXR 0x408
476
#define MP_ETH_SDCMR 0x448
477
#define MP_ETH_ICR 0x450
478
#define MP_ETH_IMR 0x458
479
#define MP_ETH_FRDP0 0x480
480
#define MP_ETH_FRDP1 0x484
481
#define MP_ETH_FRDP2 0x488
482
#define MP_ETH_FRDP3 0x48C
483
#define MP_ETH_CRDP0 0x4A0
484
#define MP_ETH_CRDP1 0x4A4
485
#define MP_ETH_CRDP2 0x4A8
486
#define MP_ETH_CRDP3 0x4AC
487
#define MP_ETH_CTDP0 0x4E0
488
#define MP_ETH_CTDP1 0x4E4
489
#define MP_ETH_CTDP2 0x4E8
490
#define MP_ETH_CTDP3 0x4EC
493
#define MP_ETH_SMIR_DATA 0x0000FFFF
494
#define MP_ETH_SMIR_ADDR 0x03FF0000
495
#define MP_ETH_SMIR_OPCODE (1 << 26) /* Read value */
496
#define MP_ETH_SMIR_RDVALID (1 << 27)
499
#define MP_ETH_PHY1_BMSR 0x00210000
500
#define MP_ETH_PHY1_PHYSID1 0x00410000
501
#define MP_ETH_PHY1_PHYSID2 0x00610000
503
#define MP_PHY_BMSR_LINK 0x0004
504
#define MP_PHY_BMSR_AUTONEG 0x0008
506
#define MP_PHY_88E3015 0x01410E20
508
/* TX descriptor status */
509
#define MP_ETH_TX_OWN (1 << 31)
511
/* RX descriptor status */
512
#define MP_ETH_RX_OWN (1 << 31)
514
/* Interrupt cause/mask bits */
515
#define MP_ETH_IRQ_RX_BIT 0
516
#define MP_ETH_IRQ_RX (1 << MP_ETH_IRQ_RX_BIT)
517
#define MP_ETH_IRQ_TXHI_BIT 2
518
#define MP_ETH_IRQ_TXLO_BIT 3
520
/* Port config bits */
521
#define MP_ETH_PCXR_2BSM_BIT 28 /* 2-byte incoming suffix */
523
/* SDMA command bits */
524
#define MP_ETH_CMD_TXHI (1 << 23)
525
#define MP_ETH_CMD_TXLO (1 << 22)
527
typedef struct mv88w8618_tx_desc {
535
typedef struct mv88w8618_rx_desc {
538
uint16_t buffer_size;
543
typedef struct mv88w8618_eth_state {
549
mv88w8618_tx_desc *tx_queue[2];
550
mv88w8618_rx_desc *rx_queue[4];
551
mv88w8618_rx_desc *frx_queue[4];
552
mv88w8618_rx_desc *cur_rx[4];
554
} mv88w8618_eth_state;
556
static int eth_can_receive(void *opaque)
561
static void eth_receive(void *opaque, const uint8_t *buf, int size)
563
mv88w8618_eth_state *s = opaque;
564
mv88w8618_rx_desc *desc;
567
for (i = 0; i < 4; i++) {
572
if (le32_to_cpu(desc->cmdstat) & MP_ETH_RX_OWN &&
573
le16_to_cpu(desc->buffer_size) >= size) {
574
memcpy(target2host_addr(le32_to_cpu(desc->buffer) +
577
desc->bytes = cpu_to_le16(size + s->vlan_header);
578
desc->cmdstat &= cpu_to_le32(~MP_ETH_RX_OWN);
579
s->cur_rx[i] = target2host_addr(le32_to_cpu(desc->next));
581
s->icr |= MP_ETH_IRQ_RX;
583
qemu_irq_raise(s->irq);
586
desc = target2host_addr(le32_to_cpu(desc->next));
587
} while (desc != s->rx_queue[i]);
591
static void eth_send(mv88w8618_eth_state *s, int queue_index)
593
mv88w8618_tx_desc *desc = s->tx_queue[queue_index];
596
if (le32_to_cpu(desc->cmdstat) & MP_ETH_TX_OWN) {
597
qemu_send_packet(s->vc,
598
target2host_addr(le32_to_cpu(desc->buffer)),
599
le16_to_cpu(desc->bytes));
600
desc->cmdstat &= cpu_to_le32(~MP_ETH_TX_OWN);
601
s->icr |= 1 << (MP_ETH_IRQ_TXLO_BIT - queue_index);
603
desc = target2host_addr(le32_to_cpu(desc->next));
604
} while (desc != s->tx_queue[queue_index]);
607
static uint32_t mv88w8618_eth_read(void *opaque, target_phys_addr_t offset)
609
mv88w8618_eth_state *s = opaque;
613
if (s->smir & MP_ETH_SMIR_OPCODE) {
614
switch (s->smir & MP_ETH_SMIR_ADDR) {
615
case MP_ETH_PHY1_BMSR:
616
return MP_PHY_BMSR_LINK | MP_PHY_BMSR_AUTONEG |
618
case MP_ETH_PHY1_PHYSID1:
619
return (MP_PHY_88E3015 >> 16) | MP_ETH_SMIR_RDVALID;
620
case MP_ETH_PHY1_PHYSID2:
621
return (MP_PHY_88E3015 & 0xFFFF) | MP_ETH_SMIR_RDVALID;
623
return MP_ETH_SMIR_RDVALID;
634
case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
635
return host2target_addr(s->frx_queue[(offset - MP_ETH_FRDP0)/4]);
637
case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
638
return host2target_addr(s->rx_queue[(offset - MP_ETH_CRDP0)/4]);
640
case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
641
return host2target_addr(s->tx_queue[(offset - MP_ETH_CTDP0)/4]);
648
static void mv88w8618_eth_write(void *opaque, target_phys_addr_t offset,
651
mv88w8618_eth_state *s = opaque;
659
s->vlan_header = ((value >> MP_ETH_PCXR_2BSM_BIT) & 1) * 2;
663
if (value & MP_ETH_CMD_TXHI)
665
if (value & MP_ETH_CMD_TXLO)
667
if (value & (MP_ETH_CMD_TXHI | MP_ETH_CMD_TXLO) && s->icr & s->imr)
668
qemu_irq_raise(s->irq);
678
qemu_irq_raise(s->irq);
681
case MP_ETH_FRDP0 ... MP_ETH_FRDP3:
682
s->frx_queue[(offset - MP_ETH_FRDP0)/4] = target2host_addr(value);
685
case MP_ETH_CRDP0 ... MP_ETH_CRDP3:
686
s->rx_queue[(offset - MP_ETH_CRDP0)/4] =
687
s->cur_rx[(offset - MP_ETH_CRDP0)/4] = target2host_addr(value);
690
case MP_ETH_CTDP0 ... MP_ETH_CTDP3:
691
s->tx_queue[(offset - MP_ETH_CTDP0)/4] = target2host_addr(value);
696
static CPUReadMemoryFunc *mv88w8618_eth_readfn[] = {
702
static CPUWriteMemoryFunc *mv88w8618_eth_writefn[] = {
708
static void mv88w8618_eth_init(NICInfo *nd, uint32_t base, qemu_irq irq)
710
mv88w8618_eth_state *s;
713
qemu_check_nic_model(nd, "mv88w8618");
715
s = qemu_mallocz(sizeof(mv88w8618_eth_state));
717
s->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name,
718
eth_receive, eth_can_receive, s);
719
iomemtype = cpu_register_io_memory(0, mv88w8618_eth_readfn,
720
mv88w8618_eth_writefn, s);
721
cpu_register_physical_memory(base, MP_ETH_SIZE, iomemtype);
724
/* LCD register offsets */
725
#define MP_LCD_IRQCTRL 0x180
726
#define MP_LCD_IRQSTAT 0x184
727
#define MP_LCD_SPICTRL 0x1ac
728
#define MP_LCD_INST 0x1bc
729
#define MP_LCD_DATA 0x1c0
732
#define MP_LCD_SPI_DATA 0x00100011
733
#define MP_LCD_SPI_CMD 0x00104011
734
#define MP_LCD_SPI_INVALID 0x00000000
737
#define MP_LCD_INST_SETPAGE0 0xB0
739
#define MP_LCD_INST_SETPAGE7 0xB7
741
#define MP_LCD_TEXTCOLOR 0xe0e0ff /* RRGGBB */
743
typedef struct musicpal_lcd_state {
749
uint8_t video_ram[128*64/8];
750
} musicpal_lcd_state;
752
static uint32_t lcd_brightness;
754
static uint8_t scale_lcd_color(uint8_t col)
758
switch (lcd_brightness) {
759
case 0x00000007: /* 0 */
762
case 0x00020000: /* 1 */
763
return (tmp * 1) / 7;
765
case 0x00020001: /* 2 */
766
return (tmp * 2) / 7;
768
case 0x00040000: /* 3 */
769
return (tmp * 3) / 7;
771
case 0x00010006: /* 4 */
772
return (tmp * 4) / 7;
774
case 0x00020005: /* 5 */
775
return (tmp * 5) / 7;
777
case 0x00040003: /* 6 */
778
return (tmp * 6) / 7;
780
case 0x00030004: /* 7 */
786
#define SET_LCD_PIXEL(depth, type) \
787
static inline void glue(set_lcd_pixel, depth) \
788
(musicpal_lcd_state *s, int x, int y, type col) \
791
type *pixel = &((type *) ds_get_data(s->ds))[(y * 128 * 3 + x) * 3]; \
793
for (dy = 0; dy < 3; dy++, pixel += 127 * 3) \
794
for (dx = 0; dx < 3; dx++, pixel++) \
797
SET_LCD_PIXEL(8, uint8_t)
798
SET_LCD_PIXEL(16, uint16_t)
799
SET_LCD_PIXEL(32, uint32_t)
801
#include "pixel_ops.h"
803
static void lcd_refresh(void *opaque)
805
musicpal_lcd_state *s = opaque;
808
switch (ds_get_bits_per_pixel(s->ds)) {
811
#define LCD_REFRESH(depth, func) \
813
col = func(scale_lcd_color((MP_LCD_TEXTCOLOR >> 16) & 0xff), \
814
scale_lcd_color((MP_LCD_TEXTCOLOR >> 8) & 0xff), \
815
scale_lcd_color(MP_LCD_TEXTCOLOR & 0xff)); \
816
for (x = 0; x < 128; x++) \
817
for (y = 0; y < 64; y++) \
818
if (s->video_ram[x + (y/8)*128] & (1 << (y % 8))) \
819
glue(set_lcd_pixel, depth)(s, x, y, col); \
821
glue(set_lcd_pixel, depth)(s, x, y, 0); \
823
LCD_REFRESH(8, rgb_to_pixel8)
824
LCD_REFRESH(16, rgb_to_pixel16)
825
LCD_REFRESH(32, rgb_to_pixel32)
827
cpu_abort(cpu_single_env, "unsupported colour depth %i\n",
828
ds_get_bits_per_pixel(s->ds));
831
dpy_update(s->ds, 0, 0, 128*3, 64*3);
834
static void lcd_invalidate(void *opaque)
838
static uint32_t musicpal_lcd_read(void *opaque, target_phys_addr_t offset)
840
musicpal_lcd_state *s = opaque;
851
static void musicpal_lcd_write(void *opaque, target_phys_addr_t offset,
854
musicpal_lcd_state *s = opaque;
862
if (value == MP_LCD_SPI_DATA || value == MP_LCD_SPI_CMD)
865
s->mode = MP_LCD_SPI_INVALID;
869
if (value >= MP_LCD_INST_SETPAGE0 && value <= MP_LCD_INST_SETPAGE7) {
870
s->page = value - MP_LCD_INST_SETPAGE0;
876
if (s->mode == MP_LCD_SPI_CMD) {
877
if (value >= MP_LCD_INST_SETPAGE0 &&
878
value <= MP_LCD_INST_SETPAGE7) {
879
s->page = value - MP_LCD_INST_SETPAGE0;
882
} else if (s->mode == MP_LCD_SPI_DATA) {
883
s->video_ram[s->page*128 + s->page_off] = value;
884
s->page_off = (s->page_off + 1) & 127;
890
static CPUReadMemoryFunc *musicpal_lcd_readfn[] = {
896
static CPUWriteMemoryFunc *musicpal_lcd_writefn[] = {
902
static void musicpal_lcd_init(uint32_t base)
904
musicpal_lcd_state *s;
907
s = qemu_mallocz(sizeof(musicpal_lcd_state));
908
iomemtype = cpu_register_io_memory(0, musicpal_lcd_readfn,
909
musicpal_lcd_writefn, s);
910
cpu_register_physical_memory(base, MP_LCD_SIZE, iomemtype);
912
s->ds = graphic_console_init(lcd_refresh, lcd_invalidate,
914
qemu_console_resize(s->ds, 128*3, 64*3);
917
/* PIC register offsets */
918
#define MP_PIC_STATUS 0x00
919
#define MP_PIC_ENABLE_SET 0x08
920
#define MP_PIC_ENABLE_CLR 0x0C
922
typedef struct mv88w8618_pic_state
927
} mv88w8618_pic_state;
929
static void mv88w8618_pic_update(mv88w8618_pic_state *s)
931
qemu_set_irq(s->parent_irq, (s->level & s->enabled));
934
static void mv88w8618_pic_set_irq(void *opaque, int irq, int level)
936
mv88w8618_pic_state *s = opaque;
939
s->level |= 1 << irq;
941
s->level &= ~(1 << irq);
942
mv88w8618_pic_update(s);
945
static uint32_t mv88w8618_pic_read(void *opaque, target_phys_addr_t offset)
947
mv88w8618_pic_state *s = opaque;
951
return s->level & s->enabled;
958
static void mv88w8618_pic_write(void *opaque, target_phys_addr_t offset,
961
mv88w8618_pic_state *s = opaque;
964
case MP_PIC_ENABLE_SET:
968
case MP_PIC_ENABLE_CLR:
969
s->enabled &= ~value;
973
mv88w8618_pic_update(s);
976
static void mv88w8618_pic_reset(void *opaque)
978
mv88w8618_pic_state *s = opaque;
984
static CPUReadMemoryFunc *mv88w8618_pic_readfn[] = {
990
static CPUWriteMemoryFunc *mv88w8618_pic_writefn[] = {
996
static qemu_irq *mv88w8618_pic_init(uint32_t base, qemu_irq parent_irq)
998
mv88w8618_pic_state *s;
1002
s = qemu_mallocz(sizeof(mv88w8618_pic_state));
1003
qi = qemu_allocate_irqs(mv88w8618_pic_set_irq, s, 32);
1004
s->parent_irq = parent_irq;
1005
iomemtype = cpu_register_io_memory(0, mv88w8618_pic_readfn,
1006
mv88w8618_pic_writefn, s);
1007
cpu_register_physical_memory(base, MP_PIC_SIZE, iomemtype);
1009
qemu_register_reset(mv88w8618_pic_reset, s);
1014
/* PIT register offsets */
1015
#define MP_PIT_TIMER1_LENGTH 0x00
1017
#define MP_PIT_TIMER4_LENGTH 0x0C
1018
#define MP_PIT_CONTROL 0x10
1019
#define MP_PIT_TIMER1_VALUE 0x14
1021
#define MP_PIT_TIMER4_VALUE 0x20
1022
#define MP_BOARD_RESET 0x34
1024
/* Magic board reset value (probably some watchdog behind it) */
1025
#define MP_BOARD_RESET_MAGIC 0x10000
1027
typedef struct mv88w8618_timer_state {
1028
ptimer_state *timer;
1032
} mv88w8618_timer_state;
1034
typedef struct mv88w8618_pit_state {
1037
} mv88w8618_pit_state;
1039
static void mv88w8618_timer_tick(void *opaque)
1041
mv88w8618_timer_state *s = opaque;
1043
qemu_irq_raise(s->irq);
1046
static void *mv88w8618_timer_init(uint32_t freq, qemu_irq irq)
1048
mv88w8618_timer_state *s;
1051
s = qemu_mallocz(sizeof(mv88w8618_timer_state));
1055
bh = qemu_bh_new(mv88w8618_timer_tick, s);
1056
s->timer = ptimer_init(bh);
1061
static uint32_t mv88w8618_pit_read(void *opaque, target_phys_addr_t offset)
1063
mv88w8618_pit_state *s = opaque;
1064
mv88w8618_timer_state *t;
1067
case MP_PIT_TIMER1_VALUE ... MP_PIT_TIMER4_VALUE:
1068
t = s->timer[(offset-MP_PIT_TIMER1_VALUE) >> 2];
1069
return ptimer_get_count(t->timer);
1076
static void mv88w8618_pit_write(void *opaque, target_phys_addr_t offset,
1079
mv88w8618_pit_state *s = opaque;
1080
mv88w8618_timer_state *t;
1084
case MP_PIT_TIMER1_LENGTH ... MP_PIT_TIMER4_LENGTH:
1085
t = s->timer[offset >> 2];
1087
ptimer_set_limit(t->timer, t->limit, 1);
1090
case MP_PIT_CONTROL:
1091
for (i = 0; i < 4; i++) {
1094
ptimer_set_limit(t->timer, t->limit, 0);
1095
ptimer_set_freq(t->timer, t->freq);
1096
ptimer_run(t->timer, 0);
1102
case MP_BOARD_RESET:
1103
if (value == MP_BOARD_RESET_MAGIC)
1104
qemu_system_reset_request();
1109
static CPUReadMemoryFunc *mv88w8618_pit_readfn[] = {
1115
static CPUWriteMemoryFunc *mv88w8618_pit_writefn[] = {
1116
mv88w8618_pit_write,
1117
mv88w8618_pit_write,
1121
static void mv88w8618_pit_init(uint32_t base, qemu_irq *pic, int irq)
1124
mv88w8618_pit_state *s;
1126
s = qemu_mallocz(sizeof(mv88w8618_pit_state));
1128
/* Letting them all run at 1 MHz is likely just a pragmatic
1129
* simplification. */
1130
s->timer[0] = mv88w8618_timer_init(1000000, pic[irq]);
1131
s->timer[1] = mv88w8618_timer_init(1000000, pic[irq + 1]);
1132
s->timer[2] = mv88w8618_timer_init(1000000, pic[irq + 2]);
1133
s->timer[3] = mv88w8618_timer_init(1000000, pic[irq + 3]);
1135
iomemtype = cpu_register_io_memory(0, mv88w8618_pit_readfn,
1136
mv88w8618_pit_writefn, s);
1137
cpu_register_physical_memory(base, MP_PIT_SIZE, iomemtype);
1140
/* Flash config register offsets */
1141
#define MP_FLASHCFG_CFGR0 0x04
1143
typedef struct mv88w8618_flashcfg_state {
1145
} mv88w8618_flashcfg_state;
1147
static uint32_t mv88w8618_flashcfg_read(void *opaque,
1148
target_phys_addr_t offset)
1150
mv88w8618_flashcfg_state *s = opaque;
1153
case MP_FLASHCFG_CFGR0:
1161
static void mv88w8618_flashcfg_write(void *opaque, target_phys_addr_t offset,
1164
mv88w8618_flashcfg_state *s = opaque;
1167
case MP_FLASHCFG_CFGR0:
1173
static CPUReadMemoryFunc *mv88w8618_flashcfg_readfn[] = {
1174
mv88w8618_flashcfg_read,
1175
mv88w8618_flashcfg_read,
1176
mv88w8618_flashcfg_read
1179
static CPUWriteMemoryFunc *mv88w8618_flashcfg_writefn[] = {
1180
mv88w8618_flashcfg_write,
1181
mv88w8618_flashcfg_write,
1182
mv88w8618_flashcfg_write
1185
static void mv88w8618_flashcfg_init(uint32_t base)
1188
mv88w8618_flashcfg_state *s;
1190
s = qemu_mallocz(sizeof(mv88w8618_flashcfg_state));
1192
s->cfgr0 = 0xfffe4285; /* Default as set by U-Boot for 8 MB flash */
1193
iomemtype = cpu_register_io_memory(0, mv88w8618_flashcfg_readfn,
1194
mv88w8618_flashcfg_writefn, s);
1195
cpu_register_physical_memory(base, MP_FLASHCFG_SIZE, iomemtype);
1198
/* Various registers in the 0x80000000 domain */
1199
#define MP_BOARD_REVISION 0x2018
1201
#define MP_WLAN_MAGIC1 0xc11c
1202
#define MP_WLAN_MAGIC2 0xc124
1204
#define MP_GPIO_OE_LO 0xd008
1205
#define MP_GPIO_OUT_LO 0xd00c
1206
#define MP_GPIO_IN_LO 0xd010
1207
#define MP_GPIO_ISR_LO 0xd020
1208
#define MP_GPIO_OE_HI 0xd508
1209
#define MP_GPIO_OUT_HI 0xd50c
1210
#define MP_GPIO_IN_HI 0xd510
1211
#define MP_GPIO_ISR_HI 0xd520
1213
/* GPIO bits & masks */
1214
#define MP_GPIO_WHEEL_VOL (1 << 8)
1215
#define MP_GPIO_WHEEL_VOL_INV (1 << 9)
1216
#define MP_GPIO_WHEEL_NAV (1 << 10)
1217
#define MP_GPIO_WHEEL_NAV_INV (1 << 11)
1218
#define MP_GPIO_LCD_BRIGHTNESS 0x00070000
1219
#define MP_GPIO_BTN_FAVORITS (1 << 19)
1220
#define MP_GPIO_BTN_MENU (1 << 20)
1221
#define MP_GPIO_BTN_VOLUME (1 << 21)
1222
#define MP_GPIO_BTN_NAVIGATION (1 << 22)
1223
#define MP_GPIO_I2C_DATA_BIT 29
1224
#define MP_GPIO_I2C_DATA (1 << MP_GPIO_I2C_DATA_BIT)
1225
#define MP_GPIO_I2C_CLOCK_BIT 30
1227
/* LCD brightness bits in GPIO_OE_HI */
1228
#define MP_OE_LCD_BRIGHTNESS 0x0007
1230
static uint32_t musicpal_read(void *opaque, target_phys_addr_t offset)
1233
case MP_BOARD_REVISION:
1236
case MP_GPIO_OE_HI: /* used for LCD brightness control */
1237
return lcd_brightness & MP_OE_LCD_BRIGHTNESS;
1239
case MP_GPIO_OUT_LO:
1240
return gpio_out_state & 0xFFFF;
1241
case MP_GPIO_OUT_HI:
1242
return gpio_out_state >> 16;
1245
return gpio_in_state & 0xFFFF;
1247
/* Update received I2C data */
1248
gpio_in_state = (gpio_in_state & ~MP_GPIO_I2C_DATA) |
1249
(i2c_get_data(mixer_i2c) << MP_GPIO_I2C_DATA_BIT);
1250
return gpio_in_state >> 16;
1252
case MP_GPIO_ISR_LO:
1253
return gpio_isr & 0xFFFF;
1254
case MP_GPIO_ISR_HI:
1255
return gpio_isr >> 16;
1257
/* Workaround to allow loading the binary-only wlandrv.ko crap
1258
* from the original Freecom firmware. */
1259
case MP_WLAN_MAGIC1:
1261
case MP_WLAN_MAGIC2:
1269
static void musicpal_write(void *opaque, target_phys_addr_t offset,
1273
case MP_GPIO_OE_HI: /* used for LCD brightness control */
1274
lcd_brightness = (lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
1275
(value & MP_OE_LCD_BRIGHTNESS);
1278
case MP_GPIO_OUT_LO:
1279
gpio_out_state = (gpio_out_state & 0xFFFF0000) | (value & 0xFFFF);
1281
case MP_GPIO_OUT_HI:
1282
gpio_out_state = (gpio_out_state & 0xFFFF) | (value << 16);
1283
lcd_brightness = (lcd_brightness & 0xFFFF) |
1284
(gpio_out_state & MP_GPIO_LCD_BRIGHTNESS);
1285
i2c_state_update(mixer_i2c,
1286
(gpio_out_state >> MP_GPIO_I2C_DATA_BIT) & 1,
1287
(gpio_out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
1293
/* Keyboard codes & masks */
1294
#define KEY_RELEASED 0x80
1295
#define KEY_CODE 0x7f
1297
#define KEYCODE_TAB 0x0f
1298
#define KEYCODE_ENTER 0x1c
1299
#define KEYCODE_F 0x21
1300
#define KEYCODE_M 0x32
1302
#define KEYCODE_EXTENDED 0xe0
1303
#define KEYCODE_UP 0x48
1304
#define KEYCODE_DOWN 0x50
1305
#define KEYCODE_LEFT 0x4b
1306
#define KEYCODE_RIGHT 0x4d
1308
static void musicpal_key_event(void *opaque, int keycode)
1310
qemu_irq irq = opaque;
1312
static int kbd_extended;
1314
if (keycode == KEYCODE_EXTENDED) {
1320
switch (keycode & KEY_CODE) {
1322
event = MP_GPIO_WHEEL_NAV | MP_GPIO_WHEEL_NAV_INV;
1326
event = MP_GPIO_WHEEL_NAV;
1330
event = MP_GPIO_WHEEL_VOL | MP_GPIO_WHEEL_VOL_INV;
1334
event = MP_GPIO_WHEEL_VOL;
1338
switch (keycode & KEY_CODE) {
1340
event = MP_GPIO_BTN_FAVORITS;
1344
event = MP_GPIO_BTN_VOLUME;
1348
event = MP_GPIO_BTN_NAVIGATION;
1352
event = MP_GPIO_BTN_MENU;
1355
/* Do not repeat already pressed buttons */
1356
if (!(keycode & KEY_RELEASED) && !(gpio_in_state & event))
1361
if (keycode & KEY_RELEASED) {
1362
gpio_in_state |= event;
1364
gpio_in_state &= ~event;
1366
qemu_irq_raise(irq);
1373
static CPUReadMemoryFunc *musicpal_readfn[] = {
1379
static CPUWriteMemoryFunc *musicpal_writefn[] = {
1385
static struct arm_boot_info musicpal_binfo = {
1386
.loader_start = 0x0,
1390
static void musicpal_init(ram_addr_t ram_size, int vga_ram_size,
1391
const char *boot_device,
1392
const char *kernel_filename, const char *kernel_cmdline,
1393
const char *initrd_filename, const char *cpu_model)
1399
unsigned long flash_size;
1402
cpu_model = "arm926";
1404
env = cpu_init(cpu_model);
1406
fprintf(stderr, "Unable to find CPU definition\n");
1409
pic = arm_pic_init_cpu(env);
1411
/* For now we use a fixed - the original - RAM size */
1412
cpu_register_physical_memory(0, MP_RAM_DEFAULT_SIZE,
1413
qemu_ram_alloc(MP_RAM_DEFAULT_SIZE));
1415
sram_off = qemu_ram_alloc(MP_SRAM_SIZE);
1416
cpu_register_physical_memory(MP_SRAM_BASE, MP_SRAM_SIZE, sram_off);
1418
/* Catch various stuff not handled by separate subsystems */
1419
iomemtype = cpu_register_io_memory(0, musicpal_readfn,
1420
musicpal_writefn, env);
1421
cpu_register_physical_memory(0x80000000, 0x10000, iomemtype);
1423
pic = mv88w8618_pic_init(MP_PIC_BASE, pic[ARM_PIC_CPU_IRQ]);
1424
mv88w8618_pit_init(MP_PIT_BASE, pic, MP_TIMER1_IRQ);
1427
serial_mm_init(MP_UART1_BASE, 2, pic[MP_UART1_IRQ], 1825000,
1430
serial_mm_init(MP_UART2_BASE, 2, pic[MP_UART2_IRQ], 1825000,
1433
/* Register flash */
1434
index = drive_get_index(IF_PFLASH, 0, 0);
1436
flash_size = bdrv_getlength(drives_table[index].bdrv);
1437
if (flash_size != 8*1024*1024 && flash_size != 16*1024*1024 &&
1438
flash_size != 32*1024*1024) {
1439
fprintf(stderr, "Invalid flash image size\n");
1444
* The original U-Boot accesses the flash at 0xFE000000 instead of
1445
* 0xFF800000 (if there is 8 MB flash). So remap flash access if the
1446
* image is smaller than 32 MB.
1448
pflash_cfi02_register(0-MP_FLASH_SIZE_MAX, qemu_ram_alloc(flash_size),
1449
drives_table[index].bdrv, 0x10000,
1450
(flash_size + 0xffff) >> 16,
1451
MP_FLASH_SIZE_MAX / flash_size,
1452
2, 0x00BF, 0x236D, 0x0000, 0x0000,
1455
mv88w8618_flashcfg_init(MP_FLASHCFG_BASE);
1457
musicpal_lcd_init(MP_LCD_BASE);
1459
qemu_add_kbd_event_handler(musicpal_key_event, pic[MP_GPIO_IRQ]);
1461
mv88w8618_eth_init(&nd_table[0], MP_ETH_BASE, pic[MP_ETH_IRQ]);
1463
mixer_i2c = musicpal_audio_init(MP_AUDIO_BASE, pic[MP_AUDIO_IRQ]);
1465
musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
1466
musicpal_binfo.kernel_filename = kernel_filename;
1467
musicpal_binfo.kernel_cmdline = kernel_cmdline;
1468
musicpal_binfo.initrd_filename = initrd_filename;
1469
arm_load_kernel(env, &musicpal_binfo);
1472
QEMUMachine musicpal_machine = {
1474
.desc = "Marvell 88w8618 / MusicPal (ARM926EJ-S)",
1475
.init = musicpal_init,
1476
.ram_require = MP_RAM_DEFAULT_SIZE + MP_SRAM_SIZE +
1477
MP_FLASH_SIZE_MAX + RAMSIZE_FIXED,