Factor out common SharpSL PDA code (Dmitry Baryshkov).

Factor out to sharpsl code to support devices that are present not only
in spitz-family PDAs but also in outher Sharp Zaurus PDAs

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4642 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 292 insertions, 0 deletions

diff --git a/hw/zaurus.c b/hw/zaurus.c
new file mode 100644
index 0000000..f655392
--- /dev/null
+++ b/hw/zaurus.c
@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2006-2008 Openedhand Ltd.
+ * Written by Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include "hw.h"
+#include "pxa.h"
+#include "sharpsl.h"
+
+#define zaurus_printf(format, ...)	\
+    fprintf(stderr, "%s: " format, __FUNCTION__, ##__VA_ARGS__)
+#undef REG_FMT
+#if TARGET_PHYS_ADDR_BITS == 32
+#define REG_FMT			"0x%02x"
+#else
+#define REG_FMT			"0x%02lx"
+#endif
+
+/* SCOOP devices */
+
+struct scoop_info_s {
+    target_phys_addr_t target_base;
+    qemu_irq handler[16];
+    qemu_irq *in;
+    uint16_t status;
+    uint16_t power;
+    uint32_t gpio_level;
+    uint32_t gpio_dir;
+    uint32_t prev_level;
+
+    uint16_t mcr;
+    uint16_t cdr;
+    uint16_t ccr;
+    uint16_t irr;
+    uint16_t imr;
+    uint16_t isr;
+    uint16_t gprr;
+};
+
+#define SCOOP_MCR	0x00
+#define SCOOP_CDR	0x04
+#define SCOOP_CSR	0x08
+#define SCOOP_CPR	0x0c
+#define SCOOP_CCR	0x10
+#define SCOOP_IRR_IRM	0x14
+#define SCOOP_IMR	0x18
+#define SCOOP_ISR	0x1c
+#define SCOOP_GPCR	0x20
+#define SCOOP_GPWR	0x24
+#define SCOOP_GPRR	0x28
+
+static inline void scoop_gpio_handler_update(struct scoop_info_s *s) {
+    uint32_t level, diff;
+    int bit;
+    level = s->gpio_level & s->gpio_dir;
+
+    for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) {
+        bit = ffs(diff) - 1;
+        qemu_set_irq(s->handler[bit], (level >> bit) & 1);
+    }
+
+    s->prev_level = level;
+}
+
+static uint32_t scoop_readb(void *opaque, target_phys_addr_t addr)
+{
+    struct scoop_info_s *s = (struct scoop_info_s *) opaque;
+    addr -= s->target_base;
+
+    switch (addr) {
+    case SCOOP_MCR:
+        return s->mcr;
+    case SCOOP_CDR:
+        return s->cdr;
+    case SCOOP_CSR:
+        return s->status;
+    case SCOOP_CPR:
+        return s->power;
+    case SCOOP_CCR:
+        return s->ccr;
+    case SCOOP_IRR_IRM:
+        return s->irr;
+    case SCOOP_IMR:
+        return s->imr;
+    case SCOOP_ISR:
+        return s->isr;
+    case SCOOP_GPCR:
+        return s->gpio_dir;
+    case SCOOP_GPWR:
+        return s->gpio_level;
+    case SCOOP_GPRR:
+        return s->gprr;
+    default:
+        zaurus_printf("Bad register offset " REG_FMT "\n", addr);
+    }
+
+    return 0;
+}
+
+static void scoop_writeb(void *opaque, target_phys_addr_t addr, uint32_t value)
+{
+    struct scoop_info_s *s = (struct scoop_info_s *) opaque;
+    addr -= s->target_base;
+    value &= 0xffff;
+
+    switch (addr) {
+    case SCOOP_MCR:
+        s->mcr = value;
+        break;
+    case SCOOP_CDR:
+        s->cdr = value;
+        break;
+    case SCOOP_CPR:
+        s->power = value;
+        if (value & 0x80)
+            s->power |= 0x8040;
+        break;
+    case SCOOP_CCR:
+        s->ccr = value;
+        break;
+    case SCOOP_IRR_IRM:
+        s->irr = value;
+        break;
+    case SCOOP_IMR:
+        s->imr = value;
+        break;
+    case SCOOP_ISR:
+        s->isr = value;
+        break;
+    case SCOOP_GPCR:
+        s->gpio_dir = value;
+        scoop_gpio_handler_update(s);
+        break;
+    case SCOOP_GPWR:
+        s->gpio_level = value & s->gpio_dir;
+        scoop_gpio_handler_update(s);
+        break;
+    case SCOOP_GPRR:
+        s->gprr = value;
+        break;
+    default:
+        zaurus_printf("Bad register offset " REG_FMT "\n", addr);
+    }
+}
+
+CPUReadMemoryFunc *scoop_readfn[] = {
+    scoop_readb,
+    scoop_readb,
+    scoop_readb,
+};
+CPUWriteMemoryFunc *scoop_writefn[] = {
+    scoop_writeb,
+    scoop_writeb,
+    scoop_writeb,
+};
+
+void scoop_gpio_set(void *opaque, int line, int level)
+{
+    struct scoop_info_s *s = (struct scoop_info_s *) s;
+
+    if (level)
+        s->gpio_level |= (1 << line);
+    else
+        s->gpio_level &= ~(1 << line);
+}
+
+qemu_irq *scoop_gpio_in_get(struct scoop_info_s *s)
+{
+    return s->in;
+}
+
+void scoop_gpio_out_set(struct scoop_info_s *s, int line,
+                qemu_irq handler) {
+    if (line >= 16) {
+        fprintf(stderr, "No GPIO pin %i\n", line);
+        exit(-1);
+    }
+
+    s->handler[line] = handler;
+}
+
+static void scoop_save(QEMUFile *f, void *opaque)
+{
+    struct scoop_info_s *s = (struct scoop_info_s *) opaque;
+    qemu_put_be16s(f, &s->status);
+    qemu_put_be16s(f, &s->power);
+    qemu_put_be32s(f, &s->gpio_level);
+    qemu_put_be32s(f, &s->gpio_dir);
+    qemu_put_be32s(f, &s->prev_level);
+    qemu_put_be16s(f, &s->mcr);
+    qemu_put_be16s(f, &s->cdr);
+    qemu_put_be16s(f, &s->ccr);
+    qemu_put_be16s(f, &s->irr);
+    qemu_put_be16s(f, &s->imr);
+    qemu_put_be16s(f, &s->isr);
+    qemu_put_be16s(f, &s->gprr);
+}
+
+static int scoop_load(QEMUFile *f, void *opaque, int version_id)
+{
+    struct scoop_info_s *s = (struct scoop_info_s *) opaque;
+    qemu_get_be16s(f, &s->status);
+    qemu_get_be16s(f, &s->power);
+    qemu_get_be32s(f, &s->gpio_level);
+    qemu_get_be32s(f, &s->gpio_dir);
+    qemu_get_be32s(f, &s->prev_level);
+    qemu_get_be16s(f, &s->mcr);
+    qemu_get_be16s(f, &s->cdr);
+    qemu_get_be16s(f, &s->ccr);
+    qemu_get_be16s(f, &s->irr);
+    qemu_get_be16s(f, &s->imr);
+    qemu_get_be16s(f, &s->isr);
+    qemu_get_be16s(f, &s->gprr);
+
+    return 0;
+}
+
+struct scoop_info_s *scoop_init(struct pxa2xx_state_s *cpu,
+		int instance,
+		target_phys_addr_t target_base) {
+    int iomemtype;
+    struct scoop_info_s *s;
+
+    s = (struct scoop_info_s *)
+            qemu_mallocz(sizeof(struct scoop_info_s));
+    memset(s, 0, sizeof(struct scoop_info_s));
+
+    s->target_base = target_base;
+    s->status = 0x02;
+    s->in = qemu_allocate_irqs(scoop_gpio_set, s, 16);
+    iomemtype = cpu_register_io_memory(0, scoop_readfn,
+                    scoop_writefn, s);
+    cpu_register_physical_memory(s->target_base, 0x1000, iomemtype);
+    register_savevm("scoop", instance, 0, scoop_save, scoop_load, s);
+
+    return s;
+}
+
+/* Write the bootloader parameters memory area.  */
+
+#define MAGIC_CHG(a, b, c, d)	((d << 24) | (c << 16) | (b << 8) | a)
+
+struct __attribute__ ((__packed__)) sl_param_info {
+    uint32_t comadj_keyword;
+    int32_t comadj;
+
+    uint32_t uuid_keyword;
+    char uuid[16];
+
+    uint32_t touch_keyword;
+    int32_t touch_xp;
+    int32_t touch_yp;
+    int32_t touch_xd;
+    int32_t touch_yd;
+
+    uint32_t adadj_keyword;
+    int32_t adadj;
+
+    uint32_t phad_keyword;
+    int32_t phadadj;
+} zaurus_bootparam = {
+    .comadj_keyword	= MAGIC_CHG('C', 'M', 'A', 'D'),
+    .comadj		= 125,
+    .uuid_keyword	= MAGIC_CHG('U', 'U', 'I', 'D'),
+    .uuid		= { -1 },
+    .touch_keyword	= MAGIC_CHG('T', 'U', 'C', 'H'),
+    .touch_xp		= -1,
+    .adadj_keyword	= MAGIC_CHG('B', 'V', 'A', 'D'),
+    .adadj		= -1,
+    .phad_keyword	= MAGIC_CHG('P', 'H', 'A', 'D'),
+    .phadadj		= 0x01,
+};
+
+void sl_bootparam_write(uint32_t ptr)
+{
+    memcpy(phys_ram_base + ptr, &zaurus_bootparam,
+                    sizeof(struct sl_param_info));
+}