qemu/hw/arm/palm.c
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   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
  36static 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
  44static 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
  53static 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
  80static MouseTransformInfo palmte_pointercal = {
  81    .x = 320,
  82    .y = 320,
  83    .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  84};
  85
  86static 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
  98static 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
 116static 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
 138typedef struct PalmMiscGPIOState {
 139    SysBusDevice parent_obj;
 140} PalmMiscGPIOState;
 141
 142static 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
 169static 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
 176static 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
 187static 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
 219static struct arm_boot_info palmte_binfo = {
 220    .loader_start = OMAP_EMIFF_BASE,
 221    .ram_size = 0x02000000,
 222    .board_id = 0x331,
 223};
 224
 225static 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
 304static 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
 314DEFINE_MACHINE("cheetah", palmte_machine_init)
 315
 316static void palm_register_types(void)
 317{
 318    type_register_static(&palm_misc_gpio_info);
 319}
 320
 321type_init(palm_register_types)
 322