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
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #if TARGET_PHYS_ADDR_BITS == 32
26 #define REG_FMT "0x%02x"
28 #define REG_FMT "0x%02lx"
34 target_phys_addr_t target_base;
52 #define SCOOP_MCR 0x00
53 #define SCOOP_CDR 0x04
54 #define SCOOP_CSR 0x08
55 #define SCOOP_CPR 0x0c
56 #define SCOOP_CCR 0x10
57 #define SCOOP_IRR_IRM 0x14
58 #define SCOOP_IMR 0x18
59 #define SCOOP_ISR 0x1c
60 #define SCOOP_GPCR 0x20
61 #define SCOOP_GPWR 0x24
62 #define SCOOP_GPRR 0x28
64 static inline void scoop_gpio_handler_update(struct scoop_info_s *s) {
67 level = s->gpio_level & s->gpio_dir;
69 for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) {
71 qemu_set_irq(s->handler[bit], (level >> bit) & 1);
74 s->prev_level = level;
77 static uint32_t scoop_readb(void *opaque, target_phys_addr_t addr)
79 struct scoop_info_s *s = (struct scoop_info_s *) opaque;
80 addr -= s->target_base;
102 return s->gpio_level;
106 zaurus_printf("Bad register offset " REG_FMT "\n", addr);
112 static void scoop_writeb(void *opaque, target_phys_addr_t addr, uint32_t value)
114 struct scoop_info_s *s = (struct scoop_info_s *) opaque;
115 addr -= s->target_base;
144 scoop_gpio_handler_update(s);
147 s->gpio_level = value & s->gpio_dir;
148 scoop_gpio_handler_update(s);
154 zaurus_printf("Bad register offset " REG_FMT "\n", addr);
158 CPUReadMemoryFunc *scoop_readfn[] = {
163 CPUWriteMemoryFunc *scoop_writefn[] = {
169 void scoop_gpio_set(void *opaque, int line, int level)
171 struct scoop_info_s *s = (struct scoop_info_s *) s;
174 s->gpio_level |= (1 << line);
176 s->gpio_level &= ~(1 << line);
179 qemu_irq *scoop_gpio_in_get(struct scoop_info_s *s)
184 void scoop_gpio_out_set(struct scoop_info_s *s, int line,
187 fprintf(stderr, "No GPIO pin %i\n", line);
191 s->handler[line] = handler;
194 static void scoop_save(QEMUFile *f, void *opaque)
196 struct scoop_info_s *s = (struct scoop_info_s *) opaque;
197 qemu_put_be16s(f, &s->status);
198 qemu_put_be16s(f, &s->power);
199 qemu_put_be32s(f, &s->gpio_level);
200 qemu_put_be32s(f, &s->gpio_dir);
201 qemu_put_be32s(f, &s->prev_level);
202 qemu_put_be16s(f, &s->mcr);
203 qemu_put_be16s(f, &s->cdr);
204 qemu_put_be16s(f, &s->ccr);
205 qemu_put_be16s(f, &s->irr);
206 qemu_put_be16s(f, &s->imr);
207 qemu_put_be16s(f, &s->isr);
208 qemu_put_be16s(f, &s->gprr);
211 static int scoop_load(QEMUFile *f, void *opaque, int version_id)
213 struct scoop_info_s *s = (struct scoop_info_s *) opaque;
214 qemu_get_be16s(f, &s->status);
215 qemu_get_be16s(f, &s->power);
216 qemu_get_be32s(f, &s->gpio_level);
217 qemu_get_be32s(f, &s->gpio_dir);
218 qemu_get_be32s(f, &s->prev_level);
219 qemu_get_be16s(f, &s->mcr);
220 qemu_get_be16s(f, &s->cdr);
221 qemu_get_be16s(f, &s->ccr);
222 qemu_get_be16s(f, &s->irr);
223 qemu_get_be16s(f, &s->imr);
224 qemu_get_be16s(f, &s->isr);
225 qemu_get_be16s(f, &s->gprr);
230 struct scoop_info_s *scoop_init(struct pxa2xx_state_s *cpu,
232 target_phys_addr_t target_base) {
234 struct scoop_info_s *s;
236 s = (struct scoop_info_s *)
237 qemu_mallocz(sizeof(struct scoop_info_s));
238 memset(s, 0, sizeof(struct scoop_info_s));
240 s->target_base = target_base;
242 s->in = qemu_allocate_irqs(scoop_gpio_set, s, 16);
243 iomemtype = cpu_register_io_memory(0, scoop_readfn,
245 cpu_register_physical_memory(s->target_base, 0x1000, iomemtype);
246 register_savevm("scoop", instance, 0, scoop_save, scoop_load, s);
251 /* Write the bootloader parameters memory area. */
253 #define MAGIC_CHG(a, b, c, d) ((d << 24) | (c << 16) | (b << 8) | a)
255 struct __attribute__ ((__packed__)) sl_param_info {
256 uint32_t comadj_keyword;
259 uint32_t uuid_keyword;
262 uint32_t touch_keyword;
268 uint32_t adadj_keyword;
271 uint32_t phad_keyword;
273 } zaurus_bootparam = {
274 .comadj_keyword = MAGIC_CHG('C', 'M', 'A', 'D'),
276 .uuid_keyword = MAGIC_CHG('U', 'U', 'I', 'D'),
278 .touch_keyword = MAGIC_CHG('T', 'U', 'C', 'H'),
280 .adadj_keyword = MAGIC_CHG('B', 'V', 'A', 'D'),
282 .phad_keyword = MAGIC_CHG('P', 'H', 'A', 'D'),
286 void sl_bootparam_write(uint32_t ptr)
288 memcpy(phys_ram_base + ptr, &zaurus_bootparam,
289 sizeof(struct sl_param_info));