--- /dev/null
+/*
+ * Marvell 88w8618 audio emulation extracted from
+ * Marvell MV88w8618 / Freecom MusicPal emulation.
+ *
+ * Copyright (c) 2008 Jan Kiszka
+ *
+ * This code is licenced under the GNU GPL v2.
+ */
+#include "sysbus.h"
+#include "hw.h"
+#include "i2c.h"
+#include "sysbus.h"
+#include "audio/audio.h"
+
+#define MP_AUDIO_SIZE 0x00001000
+
+/* Audio register offsets */
+#define MP_AUDIO_PLAYBACK_MODE 0x00
+#define MP_AUDIO_CLOCK_DIV 0x18
+#define MP_AUDIO_IRQ_STATUS 0x20
+#define MP_AUDIO_IRQ_ENABLE 0x24
+#define MP_AUDIO_TX_START_LO 0x28
+#define MP_AUDIO_TX_THRESHOLD 0x2C
+#define MP_AUDIO_TX_STATUS 0x38
+#define MP_AUDIO_TX_START_HI 0x40
+
+/* Status register and IRQ enable bits */
+#define MP_AUDIO_TX_HALF (1 << 6)
+#define MP_AUDIO_TX_FULL (1 << 7)
+
+/* Playback mode bits */
+#define MP_AUDIO_16BIT_SAMPLE (1 << 0)
+#define MP_AUDIO_PLAYBACK_EN (1 << 7)
+#define MP_AUDIO_CLOCK_24MHZ (1 << 9)
+#define MP_AUDIO_MONO (1 << 14)
+
+#ifdef HAS_AUDIO
+typedef struct mv88w8618_audio_state {
+ SysBusDevice busdev;
+ qemu_irq irq;
+ uint32_t playback_mode;
+ uint32_t status;
+ uint32_t irq_enable;
+ unsigned long phys_buf;
+ uint32_t target_buffer;
+ unsigned int threshold;
+ unsigned int play_pos;
+ unsigned int last_free;
+ uint32_t clock_div;
+ DeviceState *wm;
+} mv88w8618_audio_state;
+
+static void mv88w8618_audio_callback(void *opaque, int free_out, int free_in)
+{
+ mv88w8618_audio_state *s = opaque;
+ int16_t *codec_buffer;
+ int8_t buf[4096];
+ int8_t *mem_buffer;
+ int pos, block_size;
+
+ if (!(s->playback_mode & MP_AUDIO_PLAYBACK_EN))
+ return;
+
+ if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE)
+ free_out <<= 1;
+
+ if (!(s->playback_mode & MP_AUDIO_MONO))
+ free_out <<= 1;
+
+ block_size = s->threshold / 2;
+ if (free_out - s->last_free < block_size)
+ return;
+
+ if (block_size > 4096)
+ return;
+
+ cpu_physical_memory_read(s->target_buffer + s->play_pos, (void *)buf,
+ block_size);
+ mem_buffer = buf;
+ if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
+ if (s->playback_mode & MP_AUDIO_MONO) {
+ codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
+ for (pos = 0; pos < block_size; pos += 2) {
+ *codec_buffer++ = *(int16_t *)mem_buffer;
+ *codec_buffer++ = *(int16_t *)mem_buffer;
+ mem_buffer += 2;
+ }
+ } else
+ memcpy(wm8750_dac_buffer(s->wm, block_size >> 2),
+ (uint32_t *)mem_buffer, block_size);
+ } else {
+ if (s->playback_mode & MP_AUDIO_MONO) {
+ codec_buffer = wm8750_dac_buffer(s->wm, block_size);
+ for (pos = 0; pos < block_size; pos++) {
+ *codec_buffer++ = cpu_to_le16(256 * *mem_buffer);
+ *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
+ }
+ } else {
+ codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
+ for (pos = 0; pos < block_size; pos += 2) {
+ *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
+ *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
+ }
+ }
+ }
+ wm8750_dac_commit(s->wm);
+
+ s->last_free = free_out - block_size;
+
+ if (s->play_pos == 0) {
+ s->status |= MP_AUDIO_TX_HALF;
+ s->play_pos = block_size;
+ } else {
+ s->status |= MP_AUDIO_TX_FULL;
+ s->play_pos = 0;
+ }
+
+ if (s->status & s->irq_enable)
+ qemu_irq_raise(s->irq);
+}
+
+static void mv88w8618_audio_clock_update(mv88w8618_audio_state *s)
+{
+ int rate;
+
+ if (s->playback_mode & MP_AUDIO_CLOCK_24MHZ)
+ rate = 24576000 / 64; /* 24.576MHz */
+ else
+ rate = 11289600 / 64; /* 11.2896MHz */
+
+ rate /= ((s->clock_div >> 8) & 0xff) + 1;
+
+ wm8750_set_bclk_in(s->wm, rate);
+}
+
+static uint32_t mv88w8618_audio_read(void *opaque, target_phys_addr_t offset)
+{
+ mv88w8618_audio_state *s = opaque;
+
+ switch (offset) {
+ case MP_AUDIO_PLAYBACK_MODE:
+ return s->playback_mode;
+
+ case MP_AUDIO_CLOCK_DIV:
+ return s->clock_div;
+
+ case MP_AUDIO_IRQ_STATUS:
+ return s->status;
+
+ case MP_AUDIO_IRQ_ENABLE:
+ return s->irq_enable;
+
+ case MP_AUDIO_TX_STATUS:
+ return s->play_pos >> 2;
+
+ default:
+ return 0;
+ }
+}
+
+static void mv88w8618_audio_write(void *opaque, target_phys_addr_t offset,
+ uint32_t value)
+{
+ mv88w8618_audio_state *s = opaque;
+
+ switch (offset) {
+ case MP_AUDIO_PLAYBACK_MODE:
+ if (value & MP_AUDIO_PLAYBACK_EN &&
+ !(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
+ s->status = 0;
+ s->last_free = 0;
+ s->play_pos = 0;
+ }
+ s->playback_mode = value;
+ mv88w8618_audio_clock_update(s);
+ break;
+
+ case MP_AUDIO_CLOCK_DIV:
+ s->clock_div = value;
+ s->last_free = 0;
+ s->play_pos = 0;
+ mv88w8618_audio_clock_update(s);
+ break;
+
+ case MP_AUDIO_IRQ_STATUS:
+ s->status &= ~value;
+ break;
+
+ case MP_AUDIO_IRQ_ENABLE:
+ s->irq_enable = value;
+ if (s->status & s->irq_enable)
+ qemu_irq_raise(s->irq);
+ break;
+
+ case MP_AUDIO_TX_START_LO:
+ s->phys_buf = (s->phys_buf & 0xFFFF0000) | (value & 0xFFFF);
+ s->target_buffer = s->phys_buf;
+ s->play_pos = 0;
+ s->last_free = 0;
+ break;
+
+ case MP_AUDIO_TX_THRESHOLD:
+ s->threshold = (value + 1) * 4;
+ break;
+
+ case MP_AUDIO_TX_START_HI:
+ s->phys_buf = (s->phys_buf & 0xFFFF) | (value << 16);
+ s->target_buffer = s->phys_buf;
+ s->play_pos = 0;
+ s->last_free = 0;
+ break;
+ }
+}
+
+static void mv88w8618_audio_reset(void *opaque)
+{
+ mv88w8618_audio_state *s = opaque;
+
+ s->playback_mode = 0;
+ s->status = 0;
+ s->irq_enable = 0;
+}
+
+static CPUReadMemoryFunc *mv88w8618_audio_readfn[] = {
+ mv88w8618_audio_read,
+ mv88w8618_audio_read,
+ mv88w8618_audio_read
+};
+
+static CPUWriteMemoryFunc *mv88w8618_audio_writefn[] = {
+ mv88w8618_audio_write,
+ mv88w8618_audio_write,
+ mv88w8618_audio_write
+};
+
+static void mv88w8618_audio_init(SysBusDevice *dev)
+{
+ mv88w8618_audio_state *s = FROM_SYSBUS(mv88w8618_audio_state, dev);
+ int iomemtype;
+
+ sysbus_init_irq(dev, &s->irq);
+
+ wm8750_data_req_set(s->wm, mv88w8618_audio_callback, s);
+
+ iomemtype = cpu_register_io_memory(mv88w8618_audio_readfn,
+ mv88w8618_audio_writefn, s);
+ sysbus_init_mmio(dev, MP_AUDIO_SIZE, iomemtype);
+
+ qemu_register_reset(mv88w8618_audio_reset, s);
+}
+
+static SysBusDeviceInfo mv88w8618_audio_info = {
+ .init = mv88w8618_audio_init,
+ .qdev.name = "mv88w8618_audio",
+ .qdev.size = sizeof(mv88w8618_audio_state),
+ .qdev.props = (Property[]) {
+ {
+ .name = "wm8750",
+ .info = &qdev_prop_ptr,
+ .offset = offsetof(mv88w8618_audio_state, wm),
+ },
+ {/* end of list */}
+ }
+};
+#endif
+
+static void mv88w8618_register_devices(void)
+{
+#ifdef HAS_AUDIO
+ sysbus_register_withprop(&mv88w8618_audio_info);
+#endif
+}
+
+device_init(mv88w8618_register_devices)
#include "block.h"
#include "flash.h"
#include "console.h"
-#include "audio/audio.h"
#include "i2c.h"
#define MP_MISC_BASE 0x80002000
#define MP_FLASHCFG_SIZE 0x00001000
#define MP_AUDIO_BASE 0x90007000
-#define MP_AUDIO_SIZE 0x00001000
#define MP_PIC_BASE 0x90008000
#define MP_PIC_SIZE 0x00001000
#define MP_RTC_IRQ 28
#define MP_AUDIO_IRQ 30
-static uint32_t gpio_in_state = 0xffffffff;
-static uint32_t gpio_isr;
-static uint32_t gpio_out_state;
static ram_addr_t sram_off;
-typedef enum i2c_state {
- STOPPED = 0,
- INITIALIZING,
- SENDING_BIT7,
- SENDING_BIT6,
- SENDING_BIT5,
- SENDING_BIT4,
- SENDING_BIT3,
- SENDING_BIT2,
- SENDING_BIT1,
- SENDING_BIT0,
- WAITING_FOR_ACK,
- RECEIVING_BIT7,
- RECEIVING_BIT6,
- RECEIVING_BIT5,
- RECEIVING_BIT4,
- RECEIVING_BIT3,
- RECEIVING_BIT2,
- RECEIVING_BIT1,
- RECEIVING_BIT0,
- SENDING_ACK
-} i2c_state;
-
-typedef struct i2c_interface {
- i2c_bus *bus;
- i2c_state state;
- int last_data;
- int last_clock;
- uint8_t buffer;
- int current_addr;
-} i2c_interface;
-
-static void i2c_enter_stop(i2c_interface *i2c)
-{
- if (i2c->current_addr >= 0)
- i2c_end_transfer(i2c->bus);
- i2c->current_addr = -1;
- i2c->state = STOPPED;
-}
-
-static void i2c_state_update(i2c_interface *i2c, int data, int clock)
-{
- if (!i2c)
- return;
-
- switch (i2c->state) {
- case STOPPED:
- if (data == 0 && i2c->last_data == 1 && clock == 1)
- i2c->state = INITIALIZING;
- break;
-
- case INITIALIZING:
- if (clock == 0 && i2c->last_clock == 1 && data == 0)
- i2c->state = SENDING_BIT7;
- else
- i2c_enter_stop(i2c);
- break;
-
- case SENDING_BIT7 ... SENDING_BIT0:
- if (clock == 0 && i2c->last_clock == 1) {
- i2c->buffer = (i2c->buffer << 1) | data;
- i2c->state++; /* will end up in WAITING_FOR_ACK */
- } else if (data == 1 && i2c->last_data == 0 && clock == 1)
- i2c_enter_stop(i2c);
- break;
-
- case WAITING_FOR_ACK:
- if (clock == 0 && i2c->last_clock == 1) {
- if (i2c->current_addr < 0) {
- i2c->current_addr = i2c->buffer;
- i2c_start_transfer(i2c->bus, i2c->current_addr & 0xfe,
- i2c->buffer & 1);
- } else
- i2c_send(i2c->bus, i2c->buffer);
- if (i2c->current_addr & 1) {
- i2c->state = RECEIVING_BIT7;
- i2c->buffer = i2c_recv(i2c->bus);
- } else
- i2c->state = SENDING_BIT7;
- } else if (data == 1 && i2c->last_data == 0 && clock == 1)
- i2c_enter_stop(i2c);
- break;
-
- case RECEIVING_BIT7 ... RECEIVING_BIT0:
- if (clock == 0 && i2c->last_clock == 1) {
- i2c->state++; /* will end up in SENDING_ACK */
- i2c->buffer <<= 1;
- } else if (data == 1 && i2c->last_data == 0 && clock == 1)
- i2c_enter_stop(i2c);
- break;
-
- case SENDING_ACK:
- if (clock == 0 && i2c->last_clock == 1) {
- i2c->state = RECEIVING_BIT7;
- if (data == 0)
- i2c->buffer = i2c_recv(i2c->bus);
- else
- i2c_nack(i2c->bus);
- } else if (data == 1 && i2c->last_data == 0 && clock == 1)
- i2c_enter_stop(i2c);
- break;
- }
-
- i2c->last_data = data;
- i2c->last_clock = clock;
-}
-
-static int i2c_get_data(i2c_interface *i2c)
-{
- if (!i2c)
- return 0;
-
- switch (i2c->state) {
- case RECEIVING_BIT7 ... RECEIVING_BIT0:
- return (i2c->buffer >> 7);
-
- case WAITING_FOR_ACK:
- default:
- return 0;
- }
-}
-
-static i2c_interface *mixer_i2c;
-
-#ifdef HAS_AUDIO
-
-/* Audio register offsets */
-#define MP_AUDIO_PLAYBACK_MODE 0x00
-#define MP_AUDIO_CLOCK_DIV 0x18
-#define MP_AUDIO_IRQ_STATUS 0x20
-#define MP_AUDIO_IRQ_ENABLE 0x24
-#define MP_AUDIO_TX_START_LO 0x28
-#define MP_AUDIO_TX_THRESHOLD 0x2C
-#define MP_AUDIO_TX_STATUS 0x38
-#define MP_AUDIO_TX_START_HI 0x40
-
-/* Status register and IRQ enable bits */
-#define MP_AUDIO_TX_HALF (1 << 6)
-#define MP_AUDIO_TX_FULL (1 << 7)
-
-/* Playback mode bits */
-#define MP_AUDIO_16BIT_SAMPLE (1 << 0)
-#define MP_AUDIO_PLAYBACK_EN (1 << 7)
-#define MP_AUDIO_CLOCK_24MHZ (1 << 9)
-#define MP_AUDIO_MONO (1 << 14)
-
/* Wolfson 8750 I2C address */
#define MP_WM_ADDR 0x34
-static const char audio_name[] = "mv88w8618";
-
-typedef struct musicpal_audio_state {
- qemu_irq irq;
- uint32_t playback_mode;
- uint32_t status;
- uint32_t irq_enable;
- unsigned long phys_buf;
- uint32_t target_buffer;
- unsigned int threshold;
- unsigned int play_pos;
- unsigned int last_free;
- uint32_t clock_div;
- DeviceState *wm;
-} musicpal_audio_state;
-
-static void audio_callback(void *opaque, int free_out, int free_in)
-{
- musicpal_audio_state *s = opaque;
- int16_t *codec_buffer;
- int8_t buf[4096];
- int8_t *mem_buffer;
- int pos, block_size;
-
- if (!(s->playback_mode & MP_AUDIO_PLAYBACK_EN))
- return;
-
- if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE)
- free_out <<= 1;
-
- if (!(s->playback_mode & MP_AUDIO_MONO))
- free_out <<= 1;
-
- block_size = s->threshold/2;
- if (free_out - s->last_free < block_size)
- return;
-
- if (block_size > 4096)
- return;
-
- cpu_physical_memory_read(s->target_buffer + s->play_pos, (void *)buf,
- block_size);
- mem_buffer = buf;
- if (s->playback_mode & MP_AUDIO_16BIT_SAMPLE) {
- if (s->playback_mode & MP_AUDIO_MONO) {
- codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
- for (pos = 0; pos < block_size; pos += 2) {
- *codec_buffer++ = *(int16_t *)mem_buffer;
- *codec_buffer++ = *(int16_t *)mem_buffer;
- mem_buffer += 2;
- }
- } else
- memcpy(wm8750_dac_buffer(s->wm, block_size >> 2),
- (uint32_t *)mem_buffer, block_size);
- } else {
- if (s->playback_mode & MP_AUDIO_MONO) {
- codec_buffer = wm8750_dac_buffer(s->wm, block_size);
- for (pos = 0; pos < block_size; pos++) {
- *codec_buffer++ = cpu_to_le16(256 * *mem_buffer);
- *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
- }
- } else {
- codec_buffer = wm8750_dac_buffer(s->wm, block_size >> 1);
- for (pos = 0; pos < block_size; pos += 2) {
- *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
- *codec_buffer++ = cpu_to_le16(256 * *mem_buffer++);
- }
- }
- }
- wm8750_dac_commit(s->wm);
-
- s->last_free = free_out - block_size;
-
- if (s->play_pos == 0) {
- s->status |= MP_AUDIO_TX_HALF;
- s->play_pos = block_size;
- } else {
- s->status |= MP_AUDIO_TX_FULL;
- s->play_pos = 0;
- }
-
- if (s->status & s->irq_enable)
- qemu_irq_raise(s->irq);
-}
-
-static void musicpal_audio_clock_update(musicpal_audio_state *s)
-{
- int rate;
-
- if (s->playback_mode & MP_AUDIO_CLOCK_24MHZ)
- rate = 24576000 / 64; /* 24.576MHz */
- else
- rate = 11289600 / 64; /* 11.2896MHz */
-
- rate /= ((s->clock_div >> 8) & 0xff) + 1;
-
- wm8750_set_bclk_in(s->wm, rate);
-}
-
-static uint32_t musicpal_audio_read(void *opaque, target_phys_addr_t offset)
-{
- musicpal_audio_state *s = opaque;
-
- switch (offset) {
- case MP_AUDIO_PLAYBACK_MODE:
- return s->playback_mode;
-
- case MP_AUDIO_CLOCK_DIV:
- return s->clock_div;
-
- case MP_AUDIO_IRQ_STATUS:
- return s->status;
-
- case MP_AUDIO_IRQ_ENABLE:
- return s->irq_enable;
-
- case MP_AUDIO_TX_STATUS:
- return s->play_pos >> 2;
-
- default:
- return 0;
- }
-}
-
-static void musicpal_audio_write(void *opaque, target_phys_addr_t offset,
- uint32_t value)
-{
- musicpal_audio_state *s = opaque;
-
- switch (offset) {
- case MP_AUDIO_PLAYBACK_MODE:
- if (value & MP_AUDIO_PLAYBACK_EN &&
- !(s->playback_mode & MP_AUDIO_PLAYBACK_EN)) {
- s->status = 0;
- s->last_free = 0;
- s->play_pos = 0;
- }
- s->playback_mode = value;
- musicpal_audio_clock_update(s);
- break;
-
- case MP_AUDIO_CLOCK_DIV:
- s->clock_div = value;
- s->last_free = 0;
- s->play_pos = 0;
- musicpal_audio_clock_update(s);
- break;
-
- case MP_AUDIO_IRQ_STATUS:
- s->status &= ~value;
- break;
-
- case MP_AUDIO_IRQ_ENABLE:
- s->irq_enable = value;
- if (s->status & s->irq_enable)
- qemu_irq_raise(s->irq);
- break;
-
- case MP_AUDIO_TX_START_LO:
- s->phys_buf = (s->phys_buf & 0xFFFF0000) | (value & 0xFFFF);
- s->target_buffer = s->phys_buf;
- s->play_pos = 0;
- s->last_free = 0;
- break;
-
- case MP_AUDIO_TX_THRESHOLD:
- s->threshold = (value + 1) * 4;
- break;
-
- case MP_AUDIO_TX_START_HI:
- s->phys_buf = (s->phys_buf & 0xFFFF) | (value << 16);
- s->target_buffer = s->phys_buf;
- s->play_pos = 0;
- s->last_free = 0;
- break;
- }
-}
-
-static void musicpal_audio_reset(void *opaque)
-{
- musicpal_audio_state *s = opaque;
-
- s->playback_mode = 0;
- s->status = 0;
- s->irq_enable = 0;
-}
-
-static CPUReadMemoryFunc *musicpal_audio_readfn[] = {
- musicpal_audio_read,
- musicpal_audio_read,
- musicpal_audio_read
-};
-
-static CPUWriteMemoryFunc *musicpal_audio_writefn[] = {
- musicpal_audio_write,
- musicpal_audio_write,
- musicpal_audio_write
-};
-
-static i2c_interface *musicpal_audio_init(qemu_irq irq)
-{
- musicpal_audio_state *s;
- i2c_interface *i2c;
- int iomemtype;
-
- s = qemu_mallocz(sizeof(musicpal_audio_state));
- s->irq = irq;
-
- i2c = qemu_mallocz(sizeof(i2c_interface));
- i2c->bus = i2c_init_bus(NULL, "i2c");
- i2c->current_addr = -1;
-
- s->wm = i2c_create_slave(i2c->bus, "wm8750", MP_WM_ADDR);
- wm8750_data_req_set(s->wm, audio_callback, s);
-
- iomemtype = cpu_register_io_memory(musicpal_audio_readfn,
- musicpal_audio_writefn, s);
- cpu_register_physical_memory(MP_AUDIO_BASE, MP_AUDIO_SIZE, iomemtype);
-
- qemu_register_reset(musicpal_audio_reset, s);
-
- return i2c;
-}
-#else /* !HAS_AUDIO */
-static i2c_interface *musicpal_audio_init(qemu_irq irq)
-{
- return NULL;
-}
-#endif /* !HAS_AUDIO */
-
/* Ethernet register offsets */
#define MP_ETH_SMIR 0x010
#define MP_ETH_PCXR 0x408
typedef struct musicpal_lcd_state {
SysBusDevice busdev;
+ uint32_t brightness;
uint32_t mode;
uint32_t irqctrl;
int page;
uint8_t video_ram[128*64/8];
} musicpal_lcd_state;
-static uint32_t lcd_brightness;
-
-static uint8_t scale_lcd_color(uint8_t col)
+static uint8_t scale_lcd_color(musicpal_lcd_state *s, uint8_t col)
{
- int tmp = col;
-
- switch (lcd_brightness) {
- case 0x00000007: /* 0 */
+ switch (s->brightness) {
+ case 7:
+ return col;
+ case 0:
return 0;
-
- case 0x00020000: /* 1 */
- return (tmp * 1) / 7;
-
- case 0x00020001: /* 2 */
- return (tmp * 2) / 7;
-
- case 0x00040000: /* 3 */
- return (tmp * 3) / 7;
-
- case 0x00010006: /* 4 */
- return (tmp * 4) / 7;
-
- case 0x00020005: /* 5 */
- return (tmp * 5) / 7;
-
- case 0x00040003: /* 6 */
- return (tmp * 6) / 7;
-
- case 0x00030004: /* 7 */
default:
- return col;
+ return (col * s->brightness) / 7;
}
}
return;
#define LCD_REFRESH(depth, func) \
case depth: \
- col = func(scale_lcd_color((MP_LCD_TEXTCOLOR >> 16) & 0xff), \
- scale_lcd_color((MP_LCD_TEXTCOLOR >> 8) & 0xff), \
- scale_lcd_color(MP_LCD_TEXTCOLOR & 0xff)); \
+ col = func(scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 16) & 0xff), \
+ scale_lcd_color(s, (MP_LCD_TEXTCOLOR >> 8) & 0xff), \
+ scale_lcd_color(s, MP_LCD_TEXTCOLOR & 0xff)); \
for (x = 0; x < 128; x++) \
for (y = 0; y < 64; y++) \
if (s->video_ram[x + (y/8)*128] & (1 << (y % 8))) \
{
}
+static void musicpal_lcd_gpio_brigthness_in(void *opaque, int irq, int level)
+{
+ musicpal_lcd_state *s = (musicpal_lcd_state *) opaque;
+ s->brightness &= ~(1 << irq);
+ s->brightness |= level << irq;
+}
+
static uint32_t musicpal_lcd_read(void *opaque, target_phys_addr_t offset)
{
musicpal_lcd_state *s = opaque;
musicpal_lcd_state *s = FROM_SYSBUS(musicpal_lcd_state, dev);
int iomemtype;
+ s->brightness = 7;
+
iomemtype = cpu_register_io_memory(musicpal_lcd_readfn,
musicpal_lcd_writefn, s);
sysbus_init_mmio(dev, MP_LCD_SIZE, iomemtype);
- cpu_register_physical_memory(MP_LCD_BASE, MP_LCD_SIZE, iomemtype);
s->ds = graphic_console_init(lcd_refresh, lcd_invalidate,
NULL, NULL, s);
qemu_console_resize(s->ds, 128*3, 64*3);
+
+ qdev_init_gpio_in(&dev->qdev, musicpal_lcd_gpio_brigthness_in, 3);
}
/* PIC register offsets */
#define MP_GPIO_ISR_HI 0x520
/* GPIO bits & masks */
-#define MP_GPIO_WHEEL_VOL (1 << 8)
-#define MP_GPIO_WHEEL_VOL_INV (1 << 9)
-#define MP_GPIO_WHEEL_NAV (1 << 10)
-#define MP_GPIO_WHEEL_NAV_INV (1 << 11)
#define MP_GPIO_LCD_BRIGHTNESS 0x00070000
-#define MP_GPIO_BTN_FAVORITS (1 << 19)
-#define MP_GPIO_BTN_MENU (1 << 20)
-#define MP_GPIO_BTN_VOLUME (1 << 21)
-#define MP_GPIO_BTN_NAVIGATION (1 << 22)
#define MP_GPIO_I2C_DATA_BIT 29
#define MP_GPIO_I2C_DATA (1 << MP_GPIO_I2C_DATA_BIT)
#define MP_GPIO_I2C_CLOCK_BIT 30
/* LCD brightness bits in GPIO_OE_HI */
#define MP_OE_LCD_BRIGHTNESS 0x0007
+typedef struct musicpal_gpio_state {
+ SysBusDevice busdev;
+ uint32_t lcd_brightness;
+ uint32_t out_state;
+ uint32_t in_state;
+ uint32_t isr;
+ uint32_t i2c_read_data;
+ uint32_t key_released;
+ uint32_t keys_event; /* store the received key event */
+ qemu_irq irq;
+ qemu_irq out[5];
+} musicpal_gpio_state;
+
+static void musicpal_gpio_brightness_update(musicpal_gpio_state *s) {
+ int i;
+ uint32_t brightness;
+
+ /* compute brightness ratio */
+ switch (s->lcd_brightness) {
+ case 0x00000007:
+ brightness = 0;
+ break;
+
+ case 0x00020000:
+ brightness = 1;
+ break;
+
+ case 0x00020001:
+ brightness = 2;
+ break;
+
+ case 0x00040000:
+ brightness = 3;
+ break;
+
+ case 0x00010006:
+ brightness = 4;
+ break;
+
+ case 0x00020005:
+ brightness = 5;
+ break;
+
+ case 0x00040003:
+ brightness = 6;
+ break;
+
+ case 0x00030004:
+ default:
+ brightness = 7;
+ }
+
+ /* set lcd brightness GPIOs */
+ for (i = 0; i <= 2; i++)
+ qemu_set_irq(s->out[i], (brightness >> i) & 1);
+}
+
+static void musicpal_gpio_keys_update(musicpal_gpio_state *s)
+{
+ int gpio_mask = 0;
+
+ /* transform the key state for GPIO usage */
+ gpio_mask |= (s->keys_event & 15) << 8;
+ gpio_mask |= ((s->keys_event >> 4) & 15) << 19;
+
+ /* update GPIO state */
+ if (s->key_released) {
+ s->in_state |= gpio_mask;
+ } else {
+ s->in_state &= ~gpio_mask;
+ s->isr = gpio_mask;
+ qemu_irq_raise(s->irq);
+ }
+}
+
+static void musicpal_gpio_irq(void *opaque, int irq, int level)
+{
+ musicpal_gpio_state *s = (musicpal_gpio_state *) opaque;
+
+ if (irq == 10) {
+ s->i2c_read_data = level;
+ }
+
+ /* receives keys bits */
+ if (irq <= 7) {
+ s->keys_event &= ~(1 << irq);
+ s->keys_event |= level << irq;
+ return;
+ }
+
+ /* receives key press/release */
+ if (irq == 8) {
+ s->key_released = level;
+ return;
+ }
+
+ /* a key has been transmited */
+ if (irq == 9 && level == 1)
+ musicpal_gpio_keys_update(s);
+}
+
static uint32_t musicpal_gpio_read(void *opaque, target_phys_addr_t offset)
{
+ musicpal_gpio_state *s = (musicpal_gpio_state *) opaque;
+
switch (offset) {
case MP_GPIO_OE_HI: /* used for LCD brightness control */
- return lcd_brightness & MP_OE_LCD_BRIGHTNESS;
+ return s->lcd_brightness & MP_OE_LCD_BRIGHTNESS;
case MP_GPIO_OUT_LO:
- return gpio_out_state & 0xFFFF;
+ return s->out_state & 0xFFFF;
case MP_GPIO_OUT_HI:
- return gpio_out_state >> 16;
+ return s->out_state >> 16;
case MP_GPIO_IN_LO:
- return gpio_in_state & 0xFFFF;
+ return s->in_state & 0xFFFF;
case MP_GPIO_IN_HI:
/* Update received I2C data */
- gpio_in_state = (gpio_in_state & ~MP_GPIO_I2C_DATA) |
- (i2c_get_data(mixer_i2c) << MP_GPIO_I2C_DATA_BIT);
- return gpio_in_state >> 16;
+ s->in_state = (s->in_state & ~MP_GPIO_I2C_DATA) |
+ (s->i2c_read_data << MP_GPIO_I2C_DATA_BIT);
+ return s->in_state >> 16;
case MP_GPIO_ISR_LO:
- return gpio_isr & 0xFFFF;
+ return s->isr & 0xFFFF;
case MP_GPIO_ISR_HI:
- return gpio_isr >> 16;
+ return s->isr >> 16;
default:
return 0;
static void musicpal_gpio_write(void *opaque, target_phys_addr_t offset,
uint32_t value)
{
+ musicpal_gpio_state *s = (musicpal_gpio_state *) opaque;
switch (offset) {
case MP_GPIO_OE_HI: /* used for LCD brightness control */
- lcd_brightness = (lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
+ s->lcd_brightness = (s->lcd_brightness & MP_GPIO_LCD_BRIGHTNESS) |
(value & MP_OE_LCD_BRIGHTNESS);
+ musicpal_gpio_brightness_update(s);
break;
case MP_GPIO_OUT_LO:
- gpio_out_state = (gpio_out_state & 0xFFFF0000) | (value & 0xFFFF);
+ s->out_state = (s->out_state & 0xFFFF0000) | (value & 0xFFFF);
break;
case MP_GPIO_OUT_HI:
- gpio_out_state = (gpio_out_state & 0xFFFF) | (value << 16);
- lcd_brightness = (lcd_brightness & 0xFFFF) |
- (gpio_out_state & MP_GPIO_LCD_BRIGHTNESS);
- i2c_state_update(mixer_i2c,
- (gpio_out_state >> MP_GPIO_I2C_DATA_BIT) & 1,
- (gpio_out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
+ s->out_state = (s->out_state & 0xFFFF) | (value << 16);
+ s->lcd_brightness = (s->lcd_brightness & 0xFFFF) |
+ (s->out_state & MP_GPIO_LCD_BRIGHTNESS);
+ musicpal_gpio_brightness_update(s);
+ qemu_set_irq(s->out[3], (s->out_state >> MP_GPIO_I2C_DATA_BIT) & 1);
+ qemu_set_irq(s->out[4], (s->out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1);
break;
}
musicpal_gpio_write,
};
-static void musicpal_gpio_init(void)
+static void musicpal_gpio_reset(musicpal_gpio_state *s)
{
+ s->in_state = 0xffffffff;
+ s->i2c_read_data = 1;
+ s->key_released = 0;
+ s->keys_event = 0;
+ s->isr = 0;
+}
+
+static void musicpal_gpio_init(SysBusDevice *dev)
+{
+ musicpal_gpio_state *s = FROM_SYSBUS(musicpal_gpio_state, dev);
int iomemtype;
+ sysbus_init_irq(dev, &s->irq);
+
iomemtype = cpu_register_io_memory(musicpal_gpio_readfn,
- musicpal_gpio_writefn, NULL);
- cpu_register_physical_memory(MP_GPIO_BASE, MP_GPIO_SIZE, iomemtype);
+ musicpal_gpio_writefn, s);
+ sysbus_init_mmio(dev, MP_GPIO_SIZE, iomemtype);
+
+ musicpal_gpio_reset(s);
+
+ /* 3 brightness out + 2 lcd (data and clock ) */
+ qdev_init_gpio_out(&dev->qdev, s->out, 5);
+ /* 10 gpio button input + 1 I2C data input */
+ qdev_init_gpio_in(&dev->qdev, musicpal_gpio_irq, 11);
}
/* Keyboard codes & masks */
#define KEYCODE_LEFT 0x4b
#define KEYCODE_RIGHT 0x4d
+#define MP_KEY_WHEEL_VOL (1)
+#define MP_KEY_WHEEL_VOL_INV (1 << 1)
+#define MP_KEY_WHEEL_NAV (1 << 2)
+#define MP_KEY_WHEEL_NAV_INV (1 << 3)
+#define MP_KEY_BTN_FAVORITS (1 << 4)
+#define MP_KEY_BTN_MENU (1 << 5)
+#define MP_KEY_BTN_VOLUME (1 << 6)
+#define MP_KEY_BTN_NAVIGATION (1 << 7)
+
+typedef struct musicpal_key_state {
+ SysBusDevice busdev;
+ uint32_t kbd_extended;
+ uint32_t keys_state;
+ qemu_irq out[10];
+} musicpal_key_state;
+
static void musicpal_key_event(void *opaque, int keycode)
{
- qemu_irq irq = opaque;
+ musicpal_key_state *s = (musicpal_key_state *) opaque;
uint32_t event = 0;
- static int kbd_extended;
+ int i;
if (keycode == KEYCODE_EXTENDED) {
- kbd_extended = 1;
+ s->kbd_extended = 1;
return;
}
- if (kbd_extended)
+ if (s->kbd_extended)
switch (keycode & KEY_CODE) {
case KEYCODE_UP:
- event = MP_GPIO_WHEEL_NAV | MP_GPIO_WHEEL_NAV_INV;
+ event = MP_KEY_WHEEL_NAV | MP_KEY_WHEEL_NAV_INV;
break;
case KEYCODE_DOWN:
- event = MP_GPIO_WHEEL_NAV;
+ event = MP_KEY_WHEEL_NAV;
break;
case KEYCODE_LEFT:
- event = MP_GPIO_WHEEL_VOL | MP_GPIO_WHEEL_VOL_INV;
+ event = MP_KEY_WHEEL_VOL | MP_KEY_WHEEL_VOL_INV;
break;
case KEYCODE_RIGHT:
- event = MP_GPIO_WHEEL_VOL;
+ event = MP_KEY_WHEEL_VOL;
break;
}
else {
switch (keycode & KEY_CODE) {
case KEYCODE_F:
- event = MP_GPIO_BTN_FAVORITS;
+ event = MP_KEY_BTN_FAVORITS;
break;
case KEYCODE_TAB:
- event = MP_GPIO_BTN_VOLUME;
+ event = MP_KEY_BTN_VOLUME;
break;
case KEYCODE_ENTER:
- event = MP_GPIO_BTN_NAVIGATION;
+ event = MP_KEY_BTN_NAVIGATION;
break;
case KEYCODE_M:
- event = MP_GPIO_BTN_MENU;
+ event = MP_KEY_BTN_MENU;
break;
}
/* Do not repeat already pressed buttons */
- if (!(keycode & KEY_RELEASED) && !(gpio_in_state & event))
+ if (!(keycode & KEY_RELEASED) && !(s->keys_state & event))
event = 0;
}
if (event) {
+
+ /* transmit key event on GPIOS */
+ for (i = 0; i <= 7; i++)
+ qemu_set_irq(s->out[i], (event >> i) & 1);
+
+ /* handle key press/release */
if (keycode & KEY_RELEASED) {
- gpio_in_state |= event;
+ s->keys_state |= event;
+ qemu_irq_raise(s->out[8]);
} else {
- gpio_in_state &= ~event;
- gpio_isr = event;
- qemu_irq_raise(irq);
+ s->keys_state &= ~event;
+ qemu_irq_lower(s->out[8]);
}
+
+ /* signal that a key event occured */
+ qemu_irq_pulse(s->out[9]);
}
- kbd_extended = 0;
+ s->kbd_extended = 0;
+}
+
+static void musicpal_key_init(SysBusDevice *dev)
+{
+ musicpal_key_state *s = FROM_SYSBUS(musicpal_key_state, dev);
+
+ sysbus_init_mmio(dev, 0x0, 0);
+
+ s->kbd_extended = 0;
+ s->keys_state = 0;
+
+ /* 8 key event GPIO + 1 key press/release + 1 strobe */
+ qdev_init_gpio_out(&dev->qdev, s->out, 10);
+
+ qemu_add_kbd_event_handler(musicpal_key_event, s);
}
static struct arm_boot_info musicpal_binfo = {
qemu_irq *cpu_pic;
qemu_irq pic[32];
DeviceState *dev;
+ DeviceState *i2c_dev;
+ DeviceState *lcd_dev;
+ DeviceState *key_dev;
+#ifdef HAS_AUDIO
+ DeviceState *wm8750_dev;
+ SysBusDevice *s;
+#endif
+ i2c_bus *i2c;
int i;
unsigned long flash_size;
DriveInfo *dinfo;
}
sysbus_create_simple("mv88w8618_flashcfg", MP_FLASHCFG_BASE, NULL);
- sysbus_create_simple("musicpal_lcd", MP_LCD_BASE, NULL);
-
- qemu_add_kbd_event_handler(musicpal_key_event, pic[MP_GPIO_IRQ]);
-
qemu_check_nic_model(&nd_table[0], "mv88w8618");
dev = qdev_create(NULL, "mv88w8618_eth");
dev->nd = &nd_table[0];
sysbus_mmio_map(sysbus_from_qdev(dev), 0, MP_ETH_BASE);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[MP_ETH_IRQ]);
- mixer_i2c = musicpal_audio_init(pic[MP_AUDIO_IRQ]);
-
sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);
musicpal_misc_init();
- musicpal_gpio_init();
+
+ dev = sysbus_create_simple("musicpal_gpio", MP_GPIO_BASE, pic[MP_GPIO_IRQ]);
+ i2c_dev = sysbus_create_simple("bitbang_i2c", 0, NULL);
+ i2c = (i2c_bus *)qdev_get_child_bus(i2c_dev, "i2c");
+
+ lcd_dev = sysbus_create_simple("musicpal_lcd", MP_LCD_BASE, NULL);
+ key_dev = sysbus_create_simple("musicpal_key", 0, NULL);
+
+ /* I2C read data */
+ qdev_connect_gpio_out(i2c_dev, 0, qdev_get_gpio_in(dev, 10));
+ /* I2C data */
+ qdev_connect_gpio_out(dev, 3, qdev_get_gpio_in(i2c_dev, 0));
+ /* I2C clock */
+ qdev_connect_gpio_out(dev, 4, qdev_get_gpio_in(i2c_dev, 1));
+
+ for (i = 0; i < 3; i++)
+ qdev_connect_gpio_out(dev, i, qdev_get_gpio_in(lcd_dev, i));
+
+ for (i = 0; i < 10; i++)
+ qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i));
+
+#ifdef HAS_AUDIO
+ wm8750_dev = i2c_create_slave(i2c, "wm8750", MP_WM_ADDR);
+ dev = qdev_create(NULL, "mv88w8618_audio");
+ s = sysbus_from_qdev(dev);
+ qdev_prop_set_ptr(dev, "wm8750", wm8750_dev);
+ qdev_init(dev);
+ sysbus_mmio_map(s, 0, MP_AUDIO_BASE);
+ sysbus_connect_irq(s, 0, pic[MP_AUDIO_IRQ]);
+#endif
musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
musicpal_binfo.kernel_filename = kernel_filename;
mv88w8618_wlan_init);
sysbus_register_dev("musicpal_lcd", sizeof(musicpal_lcd_state),
musicpal_lcd_init);
+ sysbus_register_dev("musicpal_gpio", sizeof(musicpal_gpio_state),
+ musicpal_gpio_init);
+ sysbus_register_dev("musicpal_key", sizeof(musicpal_key_state),
+ musicpal_key_init);
}
device_init(musicpal_register_devices)
projects / qemu.git / commitdiff