qemu/hw/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 "hw.h"
  20#include "audio/audio.h"
  21#include "sysemu.h"
  22#include "console.h"
  23#include "omap.h"
  24#include "boards.h"
  25#include "arm-misc.h"
  26#include "devices.h"
  27#include "loader.h"
  28
  29static uint32_t static_readb(void *opaque, target_phys_addr_t offset)
  30{
  31    uint32_t *val = (uint32_t *) opaque;
  32    return *val >> ((offset & 3) << 3);
  33}
  34
  35static uint32_t static_readh(void *opaque, target_phys_addr_t offset)
  36{
  37    uint32_t *val = (uint32_t *) opaque;
  38    return *val >> ((offset & 1) << 3);
  39}
  40
  41static uint32_t static_readw(void *opaque, target_phys_addr_t offset)
  42{
  43    uint32_t *val = (uint32_t *) opaque;
  44    return *val >> ((offset & 0) << 3);
  45}
  46
  47static void static_write(void *opaque, target_phys_addr_t offset,
  48                uint32_t value)
  49{
  50#ifdef SPY
  51    printf("%s: value %08lx written at " PA_FMT "\n",
  52                    __FUNCTION__, value, offset);
  53#endif
  54}
  55
  56static CPUReadMemoryFunc * const static_readfn[] = {
  57    static_readb,
  58    static_readh,
  59    static_readw,
  60};
  61
  62static CPUWriteMemoryFunc * const static_writefn[] = {
  63    static_write,
  64    static_write,
  65    static_write,
  66};
  67
  68/* Palm Tunsgten|E support */
  69
  70/* Shared GPIOs */
  71#define PALMTE_USBDETECT_GPIO   0
  72#define PALMTE_USB_OR_DC_GPIO   1
  73#define PALMTE_TSC_GPIO         4
  74#define PALMTE_PINTDAV_GPIO     6
  75#define PALMTE_MMC_WP_GPIO      8
  76#define PALMTE_MMC_POWER_GPIO   9
  77#define PALMTE_HDQ_GPIO         11
  78#define PALMTE_HEADPHONES_GPIO  14
  79#define PALMTE_SPEAKER_GPIO     15
  80/* MPU private GPIOs */
  81#define PALMTE_DC_GPIO          2
  82#define PALMTE_MMC_SWITCH_GPIO  4
  83#define PALMTE_MMC1_GPIO        6
  84#define PALMTE_MMC2_GPIO        7
  85#define PALMTE_MMC3_GPIO        11
  86
  87static MouseTransformInfo palmte_pointercal = {
  88    .x = 320,
  89    .y = 320,
  90    .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  91};
  92
  93static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  94{
  95    uWireSlave *tsc;
  96
  97    tsc = tsc2102_init(omap_gpio_in_get(cpu->gpio)[PALMTE_PINTDAV_GPIO]);
  98
  99    omap_uwire_attach(cpu->microwire, tsc, 0);
 100    omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
 101
 102    tsc210x_set_transform(tsc, &palmte_pointercal);
 103}
 104
 105static struct {
 106    int row;
 107    int column;
 108} palmte_keymap[0x80] = {
 109    [0 ... 0x7f] = { -1, -1 },
 110    [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 111    [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 112    [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 113    [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 114    [0x01] = { 4, 0 },  /* Esc  -> Power */
 115    [0x4b] = { 0, 1 },  /*         Left */
 116    [0x50] = { 1, 1 },  /*         Down */
 117    [0x48] = { 2, 1 },  /*         Up */
 118    [0x4d] = { 3, 1 },  /*         Right */
 119    [0x4c] = { 4, 1 },  /*         Centre */
 120    [0x39] = { 4, 1 },  /* Spc  -> Centre */
 121};
 122
 123static void palmte_button_event(void *opaque, int keycode)
 124{
 125    struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 126
 127    if (palmte_keymap[keycode & 0x7f].row != -1)
 128        omap_mpuio_key(cpu->mpuio,
 129                        palmte_keymap[keycode & 0x7f].row,
 130                        palmte_keymap[keycode & 0x7f].column,
 131                        !(keycode & 0x80));
 132}
 133
 134static void palmte_onoff_gpios(void *opaque, int line, int level)
 135{
 136    switch (line) {
 137    case 0:
 138        printf("%s: current to MMC/SD card %sabled.\n",
 139                        __FUNCTION__, level ? "dis" : "en");
 140        break;
 141    case 1:
 142        printf("%s: internal speaker amplifier %s.\n",
 143                        __FUNCTION__, level ? "down" : "on");
 144        break;
 145
 146    /* These LCD & Audio output signals have not been identified yet.  */
 147    case 2:
 148    case 3:
 149    case 4:
 150        printf("%s: LCD GPIO%i %s.\n",
 151                        __FUNCTION__, line - 1, level ? "high" : "low");
 152        break;
 153    case 5:
 154    case 6:
 155        printf("%s: Audio GPIO%i %s.\n",
 156                        __FUNCTION__, line - 4, level ? "high" : "low");
 157        break;
 158    }
 159}
 160
 161static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 162{
 163    qemu_irq *misc_gpio;
 164
 165    omap_mmc_handlers(cpu->mmc,
 166                    omap_gpio_in_get(cpu->gpio)[PALMTE_MMC_WP_GPIO],
 167                    qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 168                            [PALMTE_MMC_SWITCH_GPIO]));
 169
 170    misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 171    omap_gpio_out_set(cpu->gpio, PALMTE_MMC_POWER_GPIO, misc_gpio[0]);
 172    omap_gpio_out_set(cpu->gpio, PALMTE_SPEAKER_GPIO,   misc_gpio[1]);
 173    omap_gpio_out_set(cpu->gpio, 11,                    misc_gpio[2]);
 174    omap_gpio_out_set(cpu->gpio, 12,                    misc_gpio[3]);
 175    omap_gpio_out_set(cpu->gpio, 13,                    misc_gpio[4]);
 176    omap_mpuio_out_set(cpu->mpuio, 1,                   misc_gpio[5]);
 177    omap_mpuio_out_set(cpu->mpuio, 3,                   misc_gpio[6]);
 178
 179    /* Reset some inputs to initial state.  */
 180    qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USBDETECT_GPIO]);
 181    qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USB_OR_DC_GPIO]);
 182    qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[4]);
 183    qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_HEADPHONES_GPIO]);
 184    qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 185    qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 186    qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 187    qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 188}
 189
 190static struct arm_boot_info palmte_binfo = {
 191    .loader_start = OMAP_EMIFF_BASE,
 192    .ram_size = 0x02000000,
 193    .board_id = 0x331,
 194};
 195
 196static void palmte_init(ram_addr_t ram_size,
 197                const char *boot_device,
 198                const char *kernel_filename, const char *kernel_cmdline,
 199                const char *initrd_filename, const char *cpu_model)
 200{
 201    struct omap_mpu_state_s *cpu;
 202    int flash_size = 0x00800000;
 203    int sdram_size = palmte_binfo.ram_size;
 204    int io;
 205    static uint32_t cs0val = 0xffffffff;
 206    static uint32_t cs1val = 0x0000e1a0;
 207    static uint32_t cs2val = 0x0000e1a0;
 208    static uint32_t cs3val = 0xe1a0e1a0;
 209    int rom_size, rom_loaded = 0;
 210    DisplayState *ds = get_displaystate();
 211
 212    cpu = omap310_mpu_init(sdram_size, cpu_model);
 213
 214    /* External Flash (EMIFS) */
 215    cpu_register_physical_memory(OMAP_CS0_BASE, flash_size,
 216                                 qemu_ram_alloc(NULL, "palmte.flash",
 217                                                flash_size) | IO_MEM_ROM);
 218
 219    io = cpu_register_io_memory(static_readfn, static_writefn, &cs0val,
 220                                DEVICE_NATIVE_ENDIAN);
 221    cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
 222                    OMAP_CS0_SIZE - flash_size, io);
 223    io = cpu_register_io_memory(static_readfn, static_writefn, &cs1val,
 224                                DEVICE_NATIVE_ENDIAN);
 225    cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
 226    io = cpu_register_io_memory(static_readfn, static_writefn, &cs2val,
 227                                DEVICE_NATIVE_ENDIAN);
 228    cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
 229    io = cpu_register_io_memory(static_readfn, static_writefn, &cs3val,
 230                                DEVICE_NATIVE_ENDIAN);
 231    cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
 232
 233    palmte_microwire_setup(cpu);
 234
 235    qemu_add_kbd_event_handler(palmte_button_event, cpu);
 236
 237    palmte_gpio_setup(cpu);
 238
 239    /* Setup initial (reset) machine state */
 240    if (nb_option_roms) {
 241        rom_size = get_image_size(option_rom[0].name);
 242        if (rom_size > flash_size) {
 243            fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 244                            __FUNCTION__, rom_size, flash_size);
 245            rom_size = 0;
 246        }
 247        if (rom_size > 0) {
 248            rom_size = load_image_targphys(option_rom[0].name, OMAP_CS0_BASE,
 249                                           flash_size);
 250            rom_loaded = 1;
 251        }
 252        if (rom_size < 0) {
 253            fprintf(stderr, "%s: error loading '%s'\n",
 254                            __FUNCTION__, option_rom[0].name);
 255        }
 256    }
 257
 258    if (!rom_loaded && !kernel_filename) {
 259        fprintf(stderr, "Kernel or ROM image must be specified\n");
 260        exit(1);
 261    }
 262
 263    /* Load the kernel.  */
 264    if (kernel_filename) {
 265        palmte_binfo.kernel_filename = kernel_filename;
 266        palmte_binfo.kernel_cmdline = kernel_cmdline;
 267        palmte_binfo.initrd_filename = initrd_filename;
 268        arm_load_kernel(cpu->env, &palmte_binfo);
 269    }
 270
 271    /* FIXME: We shouldn't really be doing this here.  The LCD controller
 272       will set the size once configured, so this just sets an initial
 273       size until the guest activates the display.  */
 274    ds->surface = qemu_resize_displaysurface(ds, 320, 320);
 275    dpy_resize(ds);
 276}
 277
 278static QEMUMachine palmte_machine = {
 279    .name = "cheetah",
 280    .desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 281    .init = palmte_init,
 282};
 283
 284static void palmte_machine_init(void)
 285{
 286    qemu_register_machine(&palmte_machine);
 287}
 288
 289machine_init(palmte_machine_init);
 290