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#include "qemu/osdep.h"
  20#include "qapi/error.h"
  21#include "hw/hw.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/arm.h"
  29#include "hw/devices.h"
  30#include "hw/loader.h"
  31#include "exec/address-spaces.h"
  32#include "cpu.h"
  33
  34static uint64_t static_read(void *opaque, hwaddr offset, unsigned size)
  35{
  36    uint32_t *val = (uint32_t *)opaque;
  37    uint32_t sizemask = 7 >> size;
  38
  39    return *val >> ((offset & sizemask) << 3);
  40}
  41
  42static void static_write(void *opaque, hwaddr offset, uint64_t value,
  43                         unsigned size)
  44{
  45#ifdef SPY
  46    printf("%s: value %08lx written at " PA_FMT "\n",
  47                    __func__, value, offset);
  48#endif
  49}
  50
  51static const MemoryRegionOps static_ops = {
  52    .read = static_read,
  53    .write = static_write,
  54    .valid.min_access_size = 1,
  55    .valid.max_access_size = 4,
  56    .endianness = DEVICE_NATIVE_ENDIAN,
  57};
  58
  59/* Palm Tunsgten|E support */
  60
  61/* Shared GPIOs */
  62#define PALMTE_USBDETECT_GPIO   0
  63#define PALMTE_USB_OR_DC_GPIO   1
  64#define PALMTE_TSC_GPIO         4
  65#define PALMTE_PINTDAV_GPIO     6
  66#define PALMTE_MMC_WP_GPIO      8
  67#define PALMTE_MMC_POWER_GPIO   9
  68#define PALMTE_HDQ_GPIO         11
  69#define PALMTE_HEADPHONES_GPIO  14
  70#define PALMTE_SPEAKER_GPIO     15
  71/* MPU private GPIOs */
  72#define PALMTE_DC_GPIO          2
  73#define PALMTE_MMC_SWITCH_GPIO  4
  74#define PALMTE_MMC1_GPIO        6
  75#define PALMTE_MMC2_GPIO        7
  76#define PALMTE_MMC3_GPIO        11
  77
  78static MouseTransformInfo palmte_pointercal = {
  79    .x = 320,
  80    .y = 320,
  81    .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  82};
  83
  84static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  85{
  86    uWireSlave *tsc;
  87
  88    tsc = tsc2102_init(qdev_get_gpio_in(cpu->gpio, PALMTE_PINTDAV_GPIO));
  89
  90    omap_uwire_attach(cpu->microwire, tsc, 0);
  91    omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
  92
  93    tsc210x_set_transform(tsc, &palmte_pointercal);
  94}
  95
  96static struct {
  97    int row;
  98    int column;
  99} palmte_keymap[0x80] = {
 100    [0 ... 0x7f] = { -1, -1 },
 101    [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 102    [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 103    [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 104    [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 105    [0x01] = { 4, 0 },  /* Esc  -> Power */
 106    [0x4b] = { 0, 1 },  /*         Left */
 107    [0x50] = { 1, 1 },  /*         Down */
 108    [0x48] = { 2, 1 },  /*         Up */
 109    [0x4d] = { 3, 1 },  /*         Right */
 110    [0x4c] = { 4, 1 },  /*         Centre */
 111    [0x39] = { 4, 1 },  /* Spc  -> Centre */
 112};
 113
 114static void palmte_button_event(void *opaque, int keycode)
 115{
 116    struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 117
 118    if (palmte_keymap[keycode & 0x7f].row != -1)
 119        omap_mpuio_key(cpu->mpuio,
 120                        palmte_keymap[keycode & 0x7f].row,
 121                        palmte_keymap[keycode & 0x7f].column,
 122                        !(keycode & 0x80));
 123}
 124
 125static void palmte_onoff_gpios(void *opaque, int line, int level)
 126{
 127    switch (line) {
 128    case 0:
 129        printf("%s: current to MMC/SD card %sabled.\n",
 130                        __func__, level ? "dis" : "en");
 131        break;
 132    case 1:
 133        printf("%s: internal speaker amplifier %s.\n",
 134                        __func__, level ? "down" : "on");
 135        break;
 136
 137    /* These LCD & Audio output signals have not been identified yet.  */
 138    case 2:
 139    case 3:
 140    case 4:
 141        printf("%s: LCD GPIO%i %s.\n",
 142                        __func__, line - 1, level ? "high" : "low");
 143        break;
 144    case 5:
 145    case 6:
 146        printf("%s: Audio GPIO%i %s.\n",
 147                        __func__, line - 4, level ? "high" : "low");
 148        break;
 149    }
 150}
 151
 152static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 153{
 154    qemu_irq *misc_gpio;
 155
 156    omap_mmc_handlers(cpu->mmc,
 157                    qdev_get_gpio_in(cpu->gpio, PALMTE_MMC_WP_GPIO),
 158                    qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 159                            [PALMTE_MMC_SWITCH_GPIO]));
 160
 161    misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 162    qdev_connect_gpio_out(cpu->gpio, PALMTE_MMC_POWER_GPIO,     misc_gpio[0]);
 163    qdev_connect_gpio_out(cpu->gpio, PALMTE_SPEAKER_GPIO,       misc_gpio[1]);
 164    qdev_connect_gpio_out(cpu->gpio, 11,                        misc_gpio[2]);
 165    qdev_connect_gpio_out(cpu->gpio, 12,                        misc_gpio[3]);
 166    qdev_connect_gpio_out(cpu->gpio, 13,                        misc_gpio[4]);
 167    omap_mpuio_out_set(cpu->mpuio, 1,                           misc_gpio[5]);
 168    omap_mpuio_out_set(cpu->mpuio, 3,                           misc_gpio[6]);
 169
 170    /* Reset some inputs to initial state.  */
 171    qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USBDETECT_GPIO));
 172    qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USB_OR_DC_GPIO));
 173    qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, 4));
 174    qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_HEADPHONES_GPIO));
 175    qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 176    qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 177    qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 178    qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 179}
 180
 181static struct arm_boot_info palmte_binfo = {
 182    .loader_start = OMAP_EMIFF_BASE,
 183    .ram_size = 0x02000000,
 184    .board_id = 0x331,
 185};
 186
 187static void palmte_init(MachineState *machine)
 188{
 189    const char *kernel_filename = machine->kernel_filename;
 190    const char *kernel_cmdline = machine->kernel_cmdline;
 191    const char *initrd_filename = machine->initrd_filename;
 192    MemoryRegion *address_space_mem = get_system_memory();
 193    struct omap_mpu_state_s *mpu;
 194    int flash_size = 0x00800000;
 195    int sdram_size = palmte_binfo.ram_size;
 196    static uint32_t cs0val = 0xffffffff;
 197    static uint32_t cs1val = 0x0000e1a0;
 198    static uint32_t cs2val = 0x0000e1a0;
 199    static uint32_t cs3val = 0xe1a0e1a0;
 200    int rom_size, rom_loaded = 0;
 201    MemoryRegion *flash = g_new(MemoryRegion, 1);
 202    MemoryRegion *cs = g_new(MemoryRegion, 4);
 203
 204    mpu = omap310_mpu_init(address_space_mem, sdram_size, machine->cpu_type);
 205
 206    /* External Flash (EMIFS) */
 207    memory_region_init_ram(flash, NULL, "palmte.flash", flash_size,
 208                           &error_fatal);
 209    memory_region_set_readonly(flash, true);
 210    memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE, flash);
 211
 212    memory_region_init_io(&cs[0], NULL, &static_ops, &cs0val, "palmte-cs0",
 213                          OMAP_CS0_SIZE - flash_size);
 214    memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE + flash_size,
 215                                &cs[0]);
 216    memory_region_init_io(&cs[1], NULL, &static_ops, &cs1val, "palmte-cs1",
 217                          OMAP_CS1_SIZE);
 218    memory_region_add_subregion(address_space_mem, OMAP_CS1_BASE, &cs[1]);
 219    memory_region_init_io(&cs[2], NULL, &static_ops, &cs2val, "palmte-cs2",
 220                          OMAP_CS2_SIZE);
 221    memory_region_add_subregion(address_space_mem, OMAP_CS2_BASE, &cs[2]);
 222    memory_region_init_io(&cs[3], NULL, &static_ops, &cs3val, "palmte-cs3",
 223                          OMAP_CS3_SIZE);
 224    memory_region_add_subregion(address_space_mem, OMAP_CS3_BASE, &cs[3]);
 225
 226    palmte_microwire_setup(mpu);
 227
 228    qemu_add_kbd_event_handler(palmte_button_event, mpu);
 229
 230    palmte_gpio_setup(mpu);
 231
 232    /* Setup initial (reset) machine state */
 233    if (nb_option_roms) {
 234        rom_size = get_image_size(option_rom[0].name);
 235        if (rom_size > flash_size) {
 236            fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 237                            __func__, rom_size, flash_size);
 238            rom_size = 0;
 239        }
 240        if (rom_size > 0) {
 241            rom_size = load_image_targphys(option_rom[0].name, OMAP_CS0_BASE,
 242                                           flash_size);
 243            rom_loaded = 1;
 244        }
 245        if (rom_size < 0) {
 246            fprintf(stderr, "%s: error loading '%s'\n",
 247                            __func__, option_rom[0].name);
 248        }
 249    }
 250
 251    if (!rom_loaded && !kernel_filename && !qtest_enabled()) {
 252        fprintf(stderr, "Kernel or ROM image must be specified\n");
 253        exit(1);
 254    }
 255
 256    /* Load the kernel.  */
 257    palmte_binfo.kernel_filename = kernel_filename;
 258    palmte_binfo.kernel_cmdline = kernel_cmdline;
 259    palmte_binfo.initrd_filename = initrd_filename;
 260    arm_load_kernel(mpu->cpu, &palmte_binfo);
 261}
 262
 263static void palmte_machine_init(MachineClass *mc)
 264{
 265    mc->desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)";
 266    mc->init = palmte_init;
 267    mc->ignore_memory_transaction_failures = true;
 268    mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
 269}
 270
 271DEFINE_MACHINE("cheetah", palmte_machine_init)
 272