r2358 - trunk/src/host/qemu-neo1973/hw

andrew at sita.openmoko.org andrew at sita.openmoko.org
Mon Jul 2 23:11:53 CEST 2007


Author: andrew
Date: 2007-07-02 23:11:52 +0200 (Mon, 02 Jul 2007)
New Revision: 2358

Added:
   trunk/src/host/qemu-neo1973/hw/jazz_led.c
   trunk/src/host/qemu-neo1973/hw/pl031.c
Log:
Add files missing in last merge.


Added: trunk/src/host/qemu-neo1973/hw/jazz_led.c
===================================================================
--- trunk/src/host/qemu-neo1973/hw/jazz_led.c	2007-07-02 20:51:15 UTC (rev 2357)
+++ trunk/src/host/qemu-neo1973/hw/jazz_led.c	2007-07-02 21:11:52 UTC (rev 2358)
@@ -0,0 +1,303 @@
+/*
+ * QEMU JAZZ LED emulator.
+ * 
+ * Copyright (c) 2007 Hervé Poussineau
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "vl.h"
+#include "pixel_ops.h"
+
+//#define DEBUG_LED
+
+typedef enum {
+    REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
+} screen_state_t;
+
+typedef struct LedState {
+    target_phys_addr_t base;
+    uint8_t segments;
+    DisplayState *ds;
+    screen_state_t state;
+} LedState;
+
+static uint32_t led_readb(void *opaque, target_phys_addr_t addr)
+{
+    LedState *s = opaque;
+    int relative_addr = addr - s->base;
+    uint32_t val;
+
+    switch (relative_addr) {
+        case 0:
+            val = s->segments;
+            break;
+        default:
+#ifdef DEBUG_LED
+            printf("jazz led: invalid read [0x%x]\n", relative_addr);
+#endif
+            val = 0;
+    }
+
+    return val;
+}
+
+static uint32_t led_readw(void *opaque, target_phys_addr_t addr)
+{
+    uint32_t v;
+#ifdef TARGET_WORDS_BIGENDIAN
+    v = led_readb(opaque, addr) << 8;
+    v |= led_readb(opaque, addr + 1);
+#else
+    v = led_readb(opaque, addr);
+    v |= led_readb(opaque, addr + 1) << 8;
+#endif
+    return v;
+}
+
+static uint32_t led_readl(void *opaque, target_phys_addr_t addr)
+{
+    uint32_t v;
+#ifdef TARGET_WORDS_BIGENDIAN
+    v = led_readb(opaque, addr) << 24;
+    v |= led_readb(opaque, addr + 1) << 16;
+    v |= led_readb(opaque, addr + 2) << 8;
+    v |= led_readb(opaque, addr + 3);
+#else
+    v = led_readb(opaque, addr);
+    v |= led_readb(opaque, addr + 1) << 8;
+    v |= led_readb(opaque, addr + 2) << 16;
+    v |= led_readb(opaque, addr + 3) << 24;
+#endif
+    return v;
+}
+
+static void led_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+    LedState *s = opaque;
+    int relative_addr = addr - s->base;
+
+    switch (relative_addr) {
+        case 0:
+            s->segments = val;
+            s->state |= REDRAW_SEGMENTS;
+            break;
+        default:
+#ifdef DEBUG_LED
+            printf("jazz led: invalid write of 0x%02x at [0x%x]\n", val, relative_addr);
+#endif
+            break;
+    }
+}
+
+static void led_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+    led_writeb(opaque, addr, (val >> 8) & 0xff);
+    led_writeb(opaque, addr + 1, val & 0xff);
+#else
+    led_writeb(opaque, addr, val & 0xff);
+    led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
+#endif
+}
+
+static void led_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+    led_writeb(opaque, addr, (val >> 24) & 0xff);
+    led_writeb(opaque, addr + 1, (val >> 16) & 0xff);
+    led_writeb(opaque, addr + 2, (val >> 8) & 0xff);
+    led_writeb(opaque, addr + 3, val & 0xff);
+#else
+    led_writeb(opaque, addr, val & 0xff);
+    led_writeb(opaque, addr + 1, (val >> 8) & 0xff);
+    led_writeb(opaque, addr + 2, (val >> 16) & 0xff);
+    led_writeb(opaque, addr + 3, (val >> 24) & 0xff);
+#endif
+}
+
+static CPUReadMemoryFunc *led_read[3] = {
+    led_readb,
+    led_readw,
+    led_readl,
+};
+
+static CPUWriteMemoryFunc *led_write[3] = {
+    led_writeb,
+    led_writew,
+    led_writel,
+};
+
+/***********************************************************/
+/* jazz_led display */
+
+static void draw_horizontal_line(DisplayState *ds, int posy, int posx1, int posx2, uint32_t color)
+{
+    uint8_t *d;
+    int x, bpp;
+
+    bpp = (ds->depth + 7) >> 3;
+    d = ds->data + ds->linesize * posy + bpp * posx1;
+    switch(bpp) {
+        case 1:
+            for (x = posx1; x <= posx2; x++) {
+                *((uint8_t *)d) = color;
+                d++;
+            }
+            break;
+        case 2:
+            for (x = posx1; x <= posx2; x++) {
+                *((uint16_t *)d) = color;
+                d += 2;
+            }
+            break;
+        case 4:
+            for (x = posx1; x <= posx2; x++) {
+                *((uint32_t *)d) = color;
+                d += 4;
+            }
+            break;
+    }
+}
+
+static void draw_vertical_line(DisplayState *ds, int posx, int posy1, int posy2, uint32_t color)
+{
+    uint8_t *d;
+    int y, bpp;
+
+    bpp = (ds->depth + 7) >> 3;
+    d = ds->data + ds->linesize * posy1 + bpp * posx;
+    switch(bpp) {
+        case 1:
+            for (y = posy1; y <= posy2; y++) {
+                *((uint8_t *)d) = color;
+                d += ds->linesize;
+            }
+            break;
+        case 2:
+            for (y = posy1; y <= posy2; y++) {
+                *((uint16_t *)d) = color;
+                d += ds->linesize;
+            }
+            break;
+        case 4:
+            for (y = posy1; y <= posy2; y++) {
+                *((uint32_t *)d) = color;
+                d += ds->linesize;
+            }
+            break;
+    }
+}
+
+static void jazz_led_update_display(void *opaque)
+{
+    LedState *s = opaque;
+    DisplayState *ds = s->ds;
+    uint8_t *d1;
+    uint32_t color_segment, color_led;
+    int y, bpp;
+
+    if (s->state & REDRAW_BACKGROUND) {
+        /* clear screen */
+        bpp = (ds->depth + 7) >> 3;
+        d1 = ds->data;
+        for (y = 0; y < ds->height; y++) {
+            memset(d1, 0x00, ds->width * bpp);
+            d1 += ds->linesize;
+        }
+    }
+
+    if (s->state & REDRAW_SEGMENTS) {
+        /* set colors according to bpp */
+        switch (ds->depth) {
+            case 8:
+                color_segment = rgb_to_pixel8(0xaa, 0xaa, 0xaa);
+                color_led = rgb_to_pixel8(0x00, 0xff, 0x00);
+                break;
+            case 15:
+                color_segment = rgb_to_pixel15(0xaa, 0xaa, 0xaa);
+                color_led = rgb_to_pixel15(0x00, 0xff, 0x00);
+                break;
+            case 16:
+                color_segment = rgb_to_pixel16(0xaa, 0xaa, 0xaa);
+                color_led = rgb_to_pixel16(0x00, 0xff, 0x00);
+            case 24:
+                color_segment = rgb_to_pixel24(0xaa, 0xaa, 0xaa);
+                color_led = rgb_to_pixel24(0x00, 0xff, 0x00);
+                break;
+            case 32:
+                color_segment = rgb_to_pixel32(0xaa, 0xaa, 0xaa);
+                color_led = rgb_to_pixel32(0x00, 0xff, 0x00);
+                break;
+            default:
+                return;
+        }
+
+        /* display segments */
+        draw_horizontal_line(ds, 40, 10, 40, (s->segments & 0x02) ? color_segment : 0);
+        draw_vertical_line(ds, 10, 10, 40, (s->segments & 0x04) ? color_segment : 0);
+        draw_vertical_line(ds, 10, 40, 70, (s->segments & 0x08) ? color_segment : 0);
+        draw_horizontal_line(ds, 70, 10, 40, (s->segments & 0x10) ? color_segment : 0);
+        draw_vertical_line(ds, 40, 40, 70, (s->segments & 0x20) ? color_segment : 0);
+        draw_vertical_line(ds, 40, 10, 40, (s->segments & 0x40) ? color_segment : 0);
+        draw_horizontal_line(ds, 10, 10, 40, (s->segments & 0x80) ? color_segment : 0);
+
+        /* display led */
+        if (!(s->segments & 0x01))
+            color_led = 0; /* black */
+        draw_horizontal_line(ds, 68, 50, 50, color_led);
+        draw_horizontal_line(ds, 69, 49, 51, color_led);
+        draw_horizontal_line(ds, 70, 48, 52, color_led);
+        draw_horizontal_line(ds, 71, 49, 51, color_led);
+        draw_horizontal_line(ds, 72, 50, 50, color_led);
+    }
+
+    s->state = REDRAW_NONE;
+    dpy_update(ds, 0, 0, ds->width, ds->height);
+}
+
+static void jazz_led_invalidate_display(void *opaque)
+{
+    LedState *s = opaque;
+    s->state |= REDRAW_SEGMENTS | REDRAW_BACKGROUND;
+}
+
+static void jazz_led_screen_dump(void *opaque, const char *filename)
+{
+    printf("jazz_led_screen_dump() not implemented\n");
+}
+
+void jazz_led_init(DisplayState *ds, target_phys_addr_t base)
+{
+    LedState *s;
+    int io;
+
+    s = qemu_mallocz(sizeof(LedState));
+    if (!s)
+        return;
+
+    s->base = base;
+    s->ds = ds;
+    s->state = REDRAW_SEGMENTS | REDRAW_BACKGROUND;
+
+    io = cpu_register_io_memory(0, led_read, led_write, s);
+    cpu_register_physical_memory(s->base, 1, io);
+
+    graphic_console_init(ds, jazz_led_update_display, jazz_led_invalidate_display, jazz_led_screen_dump, s);
+}

Added: trunk/src/host/qemu-neo1973/hw/pl031.c
===================================================================
--- trunk/src/host/qemu-neo1973/hw/pl031.c	2007-07-02 20:51:15 UTC (rev 2357)
+++ trunk/src/host/qemu-neo1973/hw/pl031.c	2007-07-02 21:11:52 UTC (rev 2358)
@@ -0,0 +1,219 @@
+/*
+ * ARM AMBA PrimeCell PL031 RTC
+ *
+ * Copyright (c) 2007 CodeSourcery
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include"vl.h"
+
+//#define DEBUG_PL031
+
+#ifdef DEBUG_PL031
+#define DPRINTF(fmt, args...) \
+do { printf("pl031: " fmt , ##args); } while (0)
+#else
+#define DPRINTF(fmt, args...) do {} while(0)
+#endif
+
+#define RTC_DR      0x00    /* Data read register */
+#define RTC_MR      0x04    /* Match register */
+#define RTC_LR      0x08    /* Data load register */
+#define RTC_CR      0x0c    /* Control register */
+#define RTC_IMSC    0x10    /* Interrupt mask and set register */
+#define RTC_RIS     0x14    /* Raw interrupt status register */
+#define RTC_MIS     0x18    /* Masked interrupt status register */
+#define RTC_ICR     0x1c    /* Interrupt clear register */
+
+typedef struct {
+    QEMUTimer *timer;
+    qemu_irq irq;
+    uint32_t base;
+
+    uint64_t start_time;
+    uint32_t tick_offset;
+
+    uint32_t mr;
+    uint32_t lr;
+    uint32_t cr;
+    uint32_t im;
+    uint32_t is;
+} pl031_state;
+
+static const unsigned char pl031_id[] = {
+    0x31, 0x10, 0x14, 0x00,         /* Device ID        */
+    0x0d, 0xf0, 0x05, 0xb1          /* Cell ID      */
+};
+
+static void pl031_update(pl031_state *s)
+{
+    qemu_set_irq(s->irq, s->is & s->im);
+}
+
+static void pl031_interrupt(void * opaque)
+{
+    pl031_state *s = (pl031_state *)opaque;
+
+    s->im = 1;
+    DPRINTF("Alarm raised\n");
+    pl031_update(s);
+}
+
+static uint32_t pl031_get_count(pl031_state *s)
+{
+    /* This assumes qemu_get_clock returns the time since the machine was
+       created.  */
+    return s->tick_offset + qemu_get_clock(vm_clock) / ticks_per_sec;
+}
+
+static void pl031_set_alarm(pl031_state *s)
+{
+    int64_t now;
+    uint32_t ticks;
+
+    now = qemu_get_clock(vm_clock);
+    ticks = s->tick_offset + now / ticks_per_sec;
+
+    /* The timer wraps around.  This subtraction also wraps in the same way,
+       and gives correct results when alarm < now_ticks.  */
+    ticks = s->mr - ticks;
+    DPRINTF("Alarm set in %ud ticks\n", ticks);
+    if (ticks == 0) {
+        qemu_del_timer(s->timer);
+        pl031_interrupt(s);
+    } else {
+        qemu_mod_timer(s->timer, now + (int64_t)ticks * ticks_per_sec);
+    }
+}
+
+static uint32_t pl031_read(void *opaque, target_phys_addr_t offset)
+{
+    pl031_state *s = (pl031_state *)opaque;
+
+    offset -= s->base;
+
+    if (offset >= 0xfe0  &&  offset < 0x1000)
+        return pl031_id[(offset - 0xfe0) >> 2];
+
+    switch (offset) {
+    case RTC_DR:
+        return pl031_get_count(s);
+    case RTC_MR:
+        return s->mr;
+    case RTC_IMSC:
+        return s->im;
+    case RTC_RIS:
+        return s->is;
+    case RTC_LR:
+        return s->lr;
+    case RTC_CR:
+        /* RTC is permanently enabled.  */
+        return 1;
+    case RTC_MIS:
+        return s->is & s->im;
+    case RTC_ICR:
+        fprintf(stderr, "qemu: pl031_read: Unexpected offset 0x%x\n",
+                (int)offset);
+        break;
+    default:
+        cpu_abort(cpu_single_env, "pl031_read: Bad offset 0x%x\n",
+                  (int)offset);
+        break;
+    }
+
+    return 0;
+}
+
+static void pl031_write(void * opaque, target_phys_addr_t offset,
+                        uint32_t value)
+{
+    pl031_state *s = (pl031_state *)opaque;
+
+    offset -= s->base;
+
+    switch (offset) {
+    case RTC_LR:
+        s->tick_offset += value - pl031_get_count(s);
+        pl031_set_alarm(s);
+        break;
+    case RTC_MR:
+        s->mr = value;
+        pl031_set_alarm(s);
+        break;
+    case RTC_IMSC:
+        s->im = value & 1;
+        DPRINTF("Interrupt mask %d\n", s->im);
+        pl031_update(s);
+        break;
+    case RTC_ICR:
+        /* The PL031 documentation (DDI0224B) states that the interupt is
+           cleared when bit 0 of the written value is set.  However the
+           arm926e documentation (DDI0287B) states that the interrupt is
+           cleared when any value is written.  */
+        DPRINTF("Interrupt cleared");
+        s->is = 0;
+        pl031_update(s);
+        break;
+    case RTC_CR:
+        /* Written value is ignored.  */
+        break;
+
+    case RTC_DR:
+    case RTC_MIS:
+    case RTC_RIS:
+        fprintf(stderr, "qemu: pl031_write: Unexpected offset 0x%x\n",
+                (int)offset);
+        break;
+
+    default:
+        cpu_abort(cpu_single_env, "pl031_write: Bad offset 0x%x\n",
+                  (int)offset);
+        break;
+    }
+}
+
+static CPUWriteMemoryFunc * pl031_writefn[] = {
+    pl031_write,
+    pl031_write,
+    pl031_write
+};
+
+static CPUReadMemoryFunc * pl031_readfn[] = {
+    pl031_read,
+    pl031_read,
+    pl031_read
+};
+
+void pl031_init(uint32_t base, qemu_irq irq)
+{
+    int iomemtype;
+    pl031_state *s;
+    time_t ti;
+    struct tm *tm;
+
+    s = qemu_mallocz(sizeof(pl031_state));
+    if (!s)
+        cpu_abort(cpu_single_env, "pl031_init: Out of memory\n");
+
+    iomemtype = cpu_register_io_memory(0, pl031_readfn, pl031_writefn, s);
+    if (iomemtype == -1)
+        cpu_abort(cpu_single_env, "pl031_init: Can't register I/O memory\n");
+
+    cpu_register_physical_memory(base, 0x00001000, iomemtype);
+
+    s->base = base;
+    s->irq  = irq;
+    /* ??? We assume vm_clock is zero at this point.  */
+    time(&ti);
+    if (rtc_utc)
+        tm = gmtime(&ti);
+    else
+        tm = localtime(&ti);
+    s->tick_offset = mktime(tm);
+
+    s->timer = qemu_new_timer(vm_clock, pl031_interrupt, s);
+}





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