hw/arm/palm.c

   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 "exec/address-spaces.h"
  33 #include "cpu.h"
  34 #include "qemu/cutils.h"
  35
  36 static uint64_t static_read(void *opaque, hwaddr offset, unsigned size)
  37 {
  38     uint32_t *val = (uint32_t *)opaque;
  39     uint32_t sizemask = 7 >> size;
  40
  41     return *val >> ((offset & sizemask) << 3);
  42 }
  43
  44 static void static_write(void *opaque, hwaddr offset, uint64_t value,
  45                          unsigned size)
  46 {
  47 #ifdef SPY
  48     printf("%s: value %08lx written at " PA_FMT "\n",
  49                     __func__, value, offset);
  50 #endif
  51 }
  52
  53 static const MemoryRegionOps static_ops = {
  54     .read = static_read,
  55     .write = static_write,
  56     .valid.min_access_size = 1,
  57     .valid.max_access_size = 4,
  58     .endianness = DEVICE_NATIVE_ENDIAN,
  59 };
  60
  61 /* Palm Tunsgten|E support */
  62
  63 /* Shared GPIOs */
  64 #define PALMTE_USBDETECT_GPIO   0
  65 #define PALMTE_USB_OR_DC_GPIO   1
  66 #define PALMTE_TSC_GPIO                 4
  67 #define PALMTE_PINTDAV_GPIO     6
  68 #define PALMTE_MMC_WP_GPIO      8
  69 #define PALMTE_MMC_POWER_GPIO   9
  70 #define PALMTE_HDQ_GPIO                 11
  71 #define PALMTE_HEADPHONES_GPIO  14
  72 #define PALMTE_SPEAKER_GPIO     15
  73 /* MPU private GPIOs */
  74 #define PALMTE_DC_GPIO          2
  75 #define PALMTE_MMC_SWITCH_GPIO  4
  76 #define PALMTE_MMC1_GPIO        6
  77 #define PALMTE_MMC2_GPIO        7
  78 #define PALMTE_MMC3_GPIO        11
  79
  80 static MouseTransformInfo palmte_pointercal = {
  81     .x = 320,
  82     .y = 320,
  83     .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  84 };
  85
  86 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  87 {
  88     uWireSlave *tsc;
  89
  90     tsc = tsc2102_init(qdev_get_gpio_in(cpu->gpio, PALMTE_PINTDAV_GPIO));
  91
  92     omap_uwire_attach(cpu->microwire, tsc, 0);
  93     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
  94
  95     tsc210x_set_transform(tsc, &palmte_pointercal);
  96 }
  97
  98 static struct {
  99     int row;
 100     int column;
 101 } palmte_keymap[0x80] = {
 102     [0 ... 0x7f] = { -1, -1 },
 103     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 104     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 105     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 106     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 107     [0x01] = { 4, 0 },  /* Esc  -> Power */
 108     [0x4b] = { 0, 1 },  /*         Left */
 109     [0x50] = { 1, 1 },  /*         Down */
 110     [0x48] = { 2, 1 },  /*         Up */
 111     [0x4d] = { 3, 1 },  /*         Right */
 112     [0x4c] = { 4, 1 },  /*         Centre */
 113     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 114 };
 115
 116 static void palmte_button_event(void *opaque, int keycode)
 117 {
 118     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 119
 120     if (palmte_keymap[keycode & 0x7f].row != -1)
 121         omap_mpuio_key(cpu->mpuio,
 122                         palmte_keymap[keycode & 0x7f].row,
 123                         palmte_keymap[keycode & 0x7f].column,
 124                         !(keycode & 0x80));
 125 }
 126
 127 /*
 128  * Encapsulation of some GPIO line behaviour for the Palm board
 129  *
 130  * QEMU interface:
 131  *  + unnamed GPIO inputs 0..6: for the various miscellaneous input lines
 132  */
 133
 134 #define TYPE_PALM_MISC_GPIO "palm-misc-gpio"
 135 #define PALM_MISC_GPIO(obj) \
 136     OBJECT_CHECK(PalmMiscGPIOState, (obj), TYPE_PALM_MISC_GPIO)
 137
 138 typedef struct PalmMiscGPIOState {
 139     SysBusDevice parent_obj;
 140 } PalmMiscGPIOState;
 141
 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
 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
 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
 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
 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 }
 313
 314 DEFINE_MACHINE("cheetah", palmte_machine_init)
 315
 316 static void palm_register_types(void)
 317 {
 318     type_register_static(&palm_misc_gpio_info);
 319 }
 320
 321 type_init(palm_register_types)