xref: /openbmc/qemu/hw/arm/palm.c (revision a2531bb8)
1 /*
2  * PalmOne's (TM) PDAs.
3  *
4  * Copyright (C) 2006-2007 Andrzej Zaborowski  <balrog@zabor.org>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 or
9  * (at your option) version 3 of the License.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "qapi/error.h"
22 #include "audio/audio.h"
23 #include "sysemu/sysemu.h"
24 #include "sysemu/qtest.h"
25 #include "ui/console.h"
26 #include "hw/arm/omap.h"
27 #include "hw/boards.h"
28 #include "hw/arm/boot.h"
29 #include "hw/input/tsc2xxx.h"
30 #include "hw/irq.h"
31 #include "hw/loader.h"
32 #include "qemu/cutils.h"
33 #include "qom/object.h"
34 #include "qemu/error-report.h"
35 
36 
static_read(void * opaque,hwaddr offset,unsigned size)37 static uint64_t static_read(void *opaque, hwaddr offset, unsigned size)
38 {
39     uint32_t *val = (uint32_t *)opaque;
40     uint32_t sizemask = 7 >> size;
41 
42     return *val >> ((offset & sizemask) << 3);
43 }
44 
static_write(void * opaque,hwaddr offset,uint64_t value,unsigned size)45 static void static_write(void *opaque, hwaddr offset, uint64_t value,
46                          unsigned size)
47 {
48 #ifdef SPY
49     printf("%s: value %08lx written at " PA_FMT "\n",
50                     __func__, value, offset);
51 #endif
52 }
53 
54 static const MemoryRegionOps static_ops = {
55     .read = static_read,
56     .write = static_write,
57     .valid.min_access_size = 1,
58     .valid.max_access_size = 4,
59     .endianness = DEVICE_NATIVE_ENDIAN,
60 };
61 
62 /* Palm Tunsgten|E support */
63 
64 /* Shared GPIOs */
65 #define PALMTE_USBDETECT_GPIO   0
66 #define PALMTE_USB_OR_DC_GPIO   1
67 #define PALMTE_TSC_GPIO                 4
68 #define PALMTE_PINTDAV_GPIO     6
69 #define PALMTE_MMC_WP_GPIO      8
70 #define PALMTE_MMC_POWER_GPIO   9
71 #define PALMTE_HDQ_GPIO                 11
72 #define PALMTE_HEADPHONES_GPIO  14
73 #define PALMTE_SPEAKER_GPIO     15
74 /* MPU private GPIOs */
75 #define PALMTE_DC_GPIO          2
76 #define PALMTE_MMC_SWITCH_GPIO  4
77 #define PALMTE_MMC1_GPIO        6
78 #define PALMTE_MMC2_GPIO        7
79 #define PALMTE_MMC3_GPIO        11
80 
81 static MouseTransformInfo palmte_pointercal = {
82     .x = 320,
83     .y = 320,
84     .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
85 };
86 
palmte_microwire_setup(struct omap_mpu_state_s * cpu)87 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
88 {
89     uWireSlave *tsc;
90 
91     tsc = tsc2102_init(qdev_get_gpio_in(cpu->gpio, PALMTE_PINTDAV_GPIO));
92 
93     omap_uwire_attach(cpu->microwire, tsc, 0);
94     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
95 
96     tsc210x_set_transform(tsc, &palmte_pointercal);
97 }
98 
99 static struct {
100     int row;
101     int column;
102 } palmte_keymap[0x80] = {
103     [0 ... 0x7f] = { -1, -1 },
104     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
105     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
106     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
107     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
108     [0x01] = { 4, 0 },  /* Esc  -> Power */
109     [0x4b] = { 0, 1 },  /*         Left */
110     [0x50] = { 1, 1 },  /*         Down */
111     [0x48] = { 2, 1 },  /*         Up */
112     [0x4d] = { 3, 1 },  /*         Right */
113     [0x4c] = { 4, 1 },  /*         Centre */
114     [0x39] = { 4, 1 },  /* Spc  -> Centre */
115 };
116 
palmte_button_event(void * opaque,int keycode)117 static void palmte_button_event(void *opaque, int keycode)
118 {
119     struct omap_mpu_state_s *cpu = opaque;
120 
121     if (palmte_keymap[keycode & 0x7f].row != -1)
122         omap_mpuio_key(cpu->mpuio,
123                         palmte_keymap[keycode & 0x7f].row,
124                         palmte_keymap[keycode & 0x7f].column,
125                         !(keycode & 0x80));
126 }
127 
128 /*
129  * Encapsulation of some GPIO line behaviour for the Palm board
130  *
131  * QEMU interface:
132  *  + unnamed GPIO inputs 0..6: for the various miscellaneous input lines
133  */
134 
135 #define TYPE_PALM_MISC_GPIO "palm-misc-gpio"
136 OBJECT_DECLARE_SIMPLE_TYPE(PalmMiscGPIOState, PALM_MISC_GPIO)
137 
138 struct PalmMiscGPIOState {
139     SysBusDevice parent_obj;
140 };
141 
palmte_onoff_gpios(void * opaque,int line,int level)142 static void palmte_onoff_gpios(void *opaque, int line, int level)
143 {
144     switch (line) {
145     case 0:
146         printf("%s: current to MMC/SD card %sabled.\n",
147                         __func__, level ? "dis" : "en");
148         break;
149     case 1:
150         printf("%s: internal speaker amplifier %s.\n",
151                         __func__, level ? "down" : "on");
152         break;
153 
154     /* These LCD & Audio output signals have not been identified yet.  */
155     case 2:
156     case 3:
157     case 4:
158         printf("%s: LCD GPIO%i %s.\n",
159                         __func__, line - 1, level ? "high" : "low");
160         break;
161     case 5:
162     case 6:
163         printf("%s: Audio GPIO%i %s.\n",
164                         __func__, line - 4, level ? "high" : "low");
165         break;
166     }
167 }
168 
palm_misc_gpio_init(Object * obj)169 static void palm_misc_gpio_init(Object *obj)
170 {
171     DeviceState *dev = DEVICE(obj);
172 
173     qdev_init_gpio_in(dev, palmte_onoff_gpios, 7);
174 }
175 
176 static const TypeInfo palm_misc_gpio_info = {
177     .name = TYPE_PALM_MISC_GPIO,
178     .parent = TYPE_SYS_BUS_DEVICE,
179     .instance_size = sizeof(PalmMiscGPIOState),
180     .instance_init = palm_misc_gpio_init,
181     /*
182      * No class init required: device has no internal state so does not
183      * need to set up reset or vmstate, and has no realize method.
184      */
185 };
186 
palmte_gpio_setup(struct omap_mpu_state_s * cpu)187 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
188 {
189     DeviceState *misc_gpio;
190 
191     misc_gpio = sysbus_create_simple(TYPE_PALM_MISC_GPIO, -1, NULL);
192 
193     omap_mmc_handlers(cpu->mmc,
194                     qdev_get_gpio_in(cpu->gpio, PALMTE_MMC_WP_GPIO),
195                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
196                             [PALMTE_MMC_SWITCH_GPIO]));
197 
198     qdev_connect_gpio_out(cpu->gpio, PALMTE_MMC_POWER_GPIO,
199                           qdev_get_gpio_in(misc_gpio, 0));
200     qdev_connect_gpio_out(cpu->gpio, PALMTE_SPEAKER_GPIO,
201                           qdev_get_gpio_in(misc_gpio, 1));
202     qdev_connect_gpio_out(cpu->gpio, 11, qdev_get_gpio_in(misc_gpio, 2));
203     qdev_connect_gpio_out(cpu->gpio, 12, qdev_get_gpio_in(misc_gpio, 3));
204     qdev_connect_gpio_out(cpu->gpio, 13, qdev_get_gpio_in(misc_gpio, 4));
205     omap_mpuio_out_set(cpu->mpuio, 1, qdev_get_gpio_in(misc_gpio, 5));
206     omap_mpuio_out_set(cpu->mpuio, 3, qdev_get_gpio_in(misc_gpio, 6));
207 
208     /* Reset some inputs to initial state.  */
209     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USBDETECT_GPIO));
210     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USB_OR_DC_GPIO));
211     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, 4));
212     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_HEADPHONES_GPIO));
213     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
214     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
215     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
216     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
217 }
218 
219 static struct arm_boot_info palmte_binfo = {
220     .loader_start = OMAP_EMIFF_BASE,
221     .ram_size = 0x02000000,
222     .board_id = 0x331,
223 };
224 
palmte_init(MachineState * machine)225 static void palmte_init(MachineState *machine)
226 {
227     MemoryRegion *address_space_mem = get_system_memory();
228     struct omap_mpu_state_s *mpu;
229     int flash_size = 0x00800000;
230     static uint32_t cs0val = 0xffffffff;
231     static uint32_t cs1val = 0x0000e1a0;
232     static uint32_t cs2val = 0x0000e1a0;
233     static uint32_t cs3val = 0xe1a0e1a0;
234     int rom_size, rom_loaded = 0;
235     MachineClass *mc = MACHINE_GET_CLASS(machine);
236     MemoryRegion *flash = g_new(MemoryRegion, 1);
237     MemoryRegion *cs = g_new(MemoryRegion, 4);
238 
239     if (machine->ram_size != mc->default_ram_size) {
240         char *sz = size_to_str(mc->default_ram_size);
241         error_report("Invalid RAM size, should be %s", sz);
242         g_free(sz);
243         exit(EXIT_FAILURE);
244     }
245 
246     memory_region_add_subregion(address_space_mem, OMAP_EMIFF_BASE,
247                                 machine->ram);
248 
249     mpu = omap310_mpu_init(machine->ram, machine->cpu_type);
250 
251     /* External Flash (EMIFS) */
252     memory_region_init_rom(flash, NULL, "palmte.flash", flash_size,
253                            &error_fatal);
254     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE, flash);
255 
256     memory_region_init_io(&cs[0], NULL, &static_ops, &cs0val, "palmte-cs0",
257                           OMAP_CS0_SIZE - flash_size);
258     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE + flash_size,
259                                 &cs[0]);
260     memory_region_init_io(&cs[1], NULL, &static_ops, &cs1val, "palmte-cs1",
261                           OMAP_CS1_SIZE);
262     memory_region_add_subregion(address_space_mem, OMAP_CS1_BASE, &cs[1]);
263     memory_region_init_io(&cs[2], NULL, &static_ops, &cs2val, "palmte-cs2",
264                           OMAP_CS2_SIZE);
265     memory_region_add_subregion(address_space_mem, OMAP_CS2_BASE, &cs[2]);
266     memory_region_init_io(&cs[3], NULL, &static_ops, &cs3val, "palmte-cs3",
267                           OMAP_CS3_SIZE);
268     memory_region_add_subregion(address_space_mem, OMAP_CS3_BASE, &cs[3]);
269 
270     palmte_microwire_setup(mpu);
271 
272     qemu_add_kbd_event_handler(palmte_button_event, mpu);
273 
274     palmte_gpio_setup(mpu);
275 
276     /* Setup initial (reset) machine state */
277     if (nb_option_roms) {
278         rom_size = get_image_size(option_rom[0].name);
279         if (rom_size > flash_size) {
280             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
281                             __func__, rom_size, flash_size);
282             rom_size = 0;
283         }
284         if (rom_size > 0) {
285             rom_size = load_image_targphys(option_rom[0].name, OMAP_CS0_BASE,
286                                            flash_size);
287             rom_loaded = 1;
288         }
289         if (rom_size < 0) {
290             fprintf(stderr, "%s: error loading '%s'\n",
291                             __func__, option_rom[0].name);
292         }
293     }
294 
295     if (!rom_loaded && !machine->kernel_filename && !qtest_enabled()) {
296         fprintf(stderr, "Kernel or ROM image must be specified\n");
297         exit(1);
298     }
299 
300     /* Load the kernel.  */
301     arm_load_kernel(mpu->cpu, machine, &palmte_binfo);
302 }
303 
palmte_machine_init(MachineClass * mc)304 static void palmte_machine_init(MachineClass *mc)
305 {
306     mc->desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)";
307     mc->init = palmte_init;
308     mc->ignore_memory_transaction_failures = true;
309     mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
310     mc->default_ram_size = 0x02000000;
311     mc->default_ram_id = "omap1.dram";
312     mc->deprecation_reason = "machine is old and unmaintained";
313 
314     machine_add_audiodev_property(mc);
315 }
316 
317 DEFINE_MACHINE("cheetah", palmte_machine_init)
318 
palm_register_types(void)319 static void palm_register_types(void)
320 {
321     type_register_static(&palm_misc_gpio_info);
322 }
323 
324 type_init(palm_register_types)
325