From 343ec8e4854a2dd977bf9777adc9fba5ea401ee8 Mon Sep 17 00:00:00 2001 From: Benoit Canet Date: Sun, 23 Aug 2009 14:38:07 +0200 Subject: [PATCH] Musicpal qdev conversion: gpio (except I2C part), keyboard and lcd Signed-off-by: Benoit Canet Signed-off-by: Andrzej Zaborowski --- hw/musicpal.c | 316 ++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 231 insertions(+), 85 deletions(-) diff --git a/hw/musicpal.c b/hw/musicpal.c index 2d26b3334d..a98881f8b6 100644 --- a/hw/musicpal.c +++ b/hw/musicpal.c @@ -68,9 +68,6 @@ #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 { @@ -782,6 +779,7 @@ static void mv88w8618_eth_init(SysBusDevice *dev) typedef struct musicpal_lcd_state { SysBusDevice busdev; + uint32_t brightness; uint32_t mode; uint32_t irqctrl; int page; @@ -790,37 +788,15 @@ typedef struct musicpal_lcd_state { 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 */ - 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: + switch (s->brightness) { + case 7: return col; + case 0: + return 0; + default: + return (col * s->brightness) / 7; } } @@ -851,9 +827,9 @@ static void lcd_refresh(void *opaque) 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))) \ @@ -877,6 +853,13 @@ static void lcd_invalidate(void *opaque) { } +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; @@ -946,14 +929,17 @@ static void musicpal_lcd_init(SysBusDevice *dev) 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 */ @@ -1327,15 +1313,7 @@ static void mv88w8618_wlan_init(SysBusDevice *dev) #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 @@ -1343,29 +1321,127 @@ static void mv88w8618_wlan_init(SysBusDevice *dev) /* 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 key_released; + uint32_t keys_event; /* store the received key event */ + qemu_irq irq; + qemu_irq out[3]; +} 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; + + /* 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) | + s->in_state = (s->in_state & ~MP_GPIO_I2C_DATA) | (i2c_get_data(mixer_i2c) << MP_GPIO_I2C_DATA_BIT); - return gpio_in_state >> 16; + 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; @@ -1375,22 +1451,25 @@ static uint32_t musicpal_gpio_read(void *opaque, target_phys_addr_t offset) 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); + 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); 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 >> MP_GPIO_I2C_DATA_BIT) & 1, + (s->out_state >> MP_GPIO_I2C_CLOCK_BIT) & 1); break; } @@ -1408,13 +1487,29 @@ static CPUWriteMemoryFunc *musicpal_gpio_writefn[] = { musicpal_gpio_write, }; -static void musicpal_gpio_init(void) +static void musicpal_gpio_reset(musicpal_gpio_state *s) { + s->in_state = 0xffffffff; + 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); + + qdev_init_gpio_out(&dev->qdev, s->out, 3); + qdev_init_gpio_in(&dev->qdev, musicpal_gpio_irq, 10); } /* Keyboard codes & masks */ @@ -1432,69 +1527,109 @@ static void musicpal_gpio_init(void) #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 = { @@ -1511,6 +1646,8 @@ static void musicpal_init(ram_addr_t ram_size, qemu_irq *cpu_pic; qemu_irq pic[32]; DeviceState *dev; + DeviceState *lcd_dev; + DeviceState *key_dev; int i; unsigned long flash_size; DriveInfo *dinfo; @@ -1572,10 +1709,6 @@ static void musicpal_init(ram_addr_t ram_size, } 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]; @@ -1588,7 +1721,16 @@ static void musicpal_init(ram_addr_t ram_size, 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]); + lcd_dev = sysbus_create_simple("musicpal_lcd", MP_LCD_BASE, NULL); + key_dev = sysbus_create_simple("musicpal_key", 0, NULL); + + 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)); musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE; musicpal_binfo.kernel_filename = kernel_filename; @@ -1624,6 +1766,10 @@ static void musicpal_register_devices(void) 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)