2 * Copyright (c) 2006-2008 Openedhand Ltd.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 or
8 * (at your option) version 3 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, see <http://www.gnu.org/licenses/>.
23 #define REG_FMT "0x%02lx"
44 #define SCOOP_MCR 0x00
45 #define SCOOP_CDR 0x04
46 #define SCOOP_CSR 0x08
47 #define SCOOP_CPR 0x0c
48 #define SCOOP_CCR 0x10
49 #define SCOOP_IRR_IRM 0x14
50 #define SCOOP_IMR 0x18
51 #define SCOOP_ISR 0x1c
52 #define SCOOP_GPCR 0x20
53 #define SCOOP_GPWR 0x24
54 #define SCOOP_GPRR 0x28
56 static inline void scoop_gpio_handler_update(ScoopInfo *s) {
59 level = s->gpio_level & s->gpio_dir;
61 for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) {
63 qemu_set_irq(s->handler[bit], (level >> bit) & 1);
66 s->prev_level = level;
69 static uint32_t scoop_readb(void *opaque, target_phys_addr_t addr)
71 ScoopInfo *s = (ScoopInfo *) opaque;
96 zaurus_printf("Bad register offset " REG_FMT "\n", (unsigned long)addr);
102 static void scoop_writeb(void *opaque, target_phys_addr_t addr, uint32_t value)
104 ScoopInfo *s = (ScoopInfo *) opaque;
133 scoop_gpio_handler_update(s);
136 case SCOOP_GPRR: /* GPRR is probably R/O in real HW */
137 s->gpio_level = value & s->gpio_dir;
138 scoop_gpio_handler_update(s);
141 zaurus_printf("Bad register offset " REG_FMT "\n", (unsigned long)addr);
145 static CPUReadMemoryFunc * const scoop_readfn[] = {
150 static CPUWriteMemoryFunc * const scoop_writefn[] = {
156 void scoop_gpio_set(void *opaque, int line, int level)
158 ScoopInfo *s = (ScoopInfo *) opaque;
161 s->gpio_level |= (1 << line);
163 s->gpio_level &= ~(1 << line);
166 qemu_irq *scoop_gpio_in_get(ScoopInfo *s)
171 void scoop_gpio_out_set(ScoopInfo *s, int line,
174 fprintf(stderr, "No GPIO pin %i\n", line);
178 s->handler[line] = handler;
181 static void scoop_save(QEMUFile *f, void *opaque)
183 ScoopInfo *s = (ScoopInfo *) opaque;
184 qemu_put_be16s(f, &s->status);
185 qemu_put_be16s(f, &s->power);
186 qemu_put_be32s(f, &s->gpio_level);
187 qemu_put_be32s(f, &s->gpio_dir);
188 qemu_put_be32s(f, &s->prev_level);
189 qemu_put_be16s(f, &s->mcr);
190 qemu_put_be16s(f, &s->cdr);
191 qemu_put_be16s(f, &s->ccr);
192 qemu_put_be16s(f, &s->irr);
193 qemu_put_be16s(f, &s->imr);
194 qemu_put_be16s(f, &s->isr);
197 static int scoop_load(QEMUFile *f, void *opaque, int version_id)
200 ScoopInfo *s = (ScoopInfo *) opaque;
201 qemu_get_be16s(f, &s->status);
202 qemu_get_be16s(f, &s->power);
203 qemu_get_be32s(f, &s->gpio_level);
204 qemu_get_be32s(f, &s->gpio_dir);
205 qemu_get_be32s(f, &s->prev_level);
206 qemu_get_be16s(f, &s->mcr);
207 qemu_get_be16s(f, &s->cdr);
208 qemu_get_be16s(f, &s->ccr);
209 qemu_get_be16s(f, &s->irr);
210 qemu_get_be16s(f, &s->imr);
211 qemu_get_be16s(f, &s->isr);
213 qemu_get_be16s(f, &dummy);
218 ScoopInfo *scoop_init(PXA2xxState *cpu,
220 target_phys_addr_t target_base) {
225 qemu_mallocz(sizeof(ScoopInfo));
226 memset(s, 0, sizeof(ScoopInfo));
229 s->in = qemu_allocate_irqs(scoop_gpio_set, s, 16);
230 iomemtype = cpu_register_io_memory(scoop_readfn,
231 scoop_writefn, s, DEVICE_NATIVE_ENDIAN);
232 cpu_register_physical_memory(target_base, 0x1000, iomemtype);
233 register_savevm(NULL, "scoop", instance, 1, scoop_save, scoop_load, s);
238 /* Write the bootloader parameters memory area. */
240 #define MAGIC_CHG(a, b, c, d) ((d << 24) | (c << 16) | (b << 8) | a)
242 static struct __attribute__ ((__packed__)) sl_param_info {
243 uint32_t comadj_keyword;
246 uint32_t uuid_keyword;
249 uint32_t touch_keyword;
255 uint32_t adadj_keyword;
258 uint32_t phad_keyword;
260 } zaurus_bootparam = {
261 .comadj_keyword = MAGIC_CHG('C', 'M', 'A', 'D'),
263 .uuid_keyword = MAGIC_CHG('U', 'U', 'I', 'D'),
265 .touch_keyword = MAGIC_CHG('T', 'U', 'C', 'H'),
267 .adadj_keyword = MAGIC_CHG('B', 'V', 'A', 'D'),
269 .phad_keyword = MAGIC_CHG('P', 'H', 'A', 'D'),
273 void sl_bootparam_write(target_phys_addr_t ptr)
275 cpu_physical_memory_write(ptr, (void *)&zaurus_bootparam,
276 sizeof(struct sl_param_info));