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 #include "hw/hw.h"
  20 #include "audio/audio.h"
  21 #include "sysemu/sysemu.h"
  22 #include "sysemu/qtest.h"
  23 #include "ui/console.h"
  24 #include "hw/arm/omap.h"
  25 #include "hw/boards.h"
  26 #include "hw/arm/arm.h"
  27 #include "hw/devices.h"
  28 #include "hw/loader.h"
  29 #include "exec/address-spaces.h"
  30
  31 static uint32_t static_readb(void *opaque, hwaddr offset)
  32 {
  33     uint32_t *val = (uint32_t *) opaque;
  34     return *val >> ((offset & 3) << 3);
  35 }
  36
  37 static uint32_t static_readh(void *opaque, hwaddr offset)
  38 {
  39     uint32_t *val = (uint32_t *) opaque;
  40     return *val >> ((offset & 1) << 3);
  41 }
  42
  43 static uint32_t static_readw(void *opaque, hwaddr offset)
  44 {
  45     uint32_t *val = (uint32_t *) opaque;
  46     return *val >> ((offset & 0) << 3);
  47 }
  48
  49 static void static_write(void *opaque, hwaddr offset,
  50                 uint32_t value)
  51 {
  52 #ifdef SPY
  53     printf("%s: value %08lx written at " PA_FMT "\n",
  54                     __FUNCTION__, value, offset);
  55 #endif
  56 }
  57
  58 static const MemoryRegionOps static_ops = {
  59     .old_mmio = {
  60         .read = { static_readb, static_readh, static_readw, },
  61         .write = { static_write, static_write, static_write, },
  62     },
  63     .endianness = DEVICE_NATIVE_ENDIAN,
  64 };
  65
  66 /* Palm Tunsgten|E support */
  67
  68 /* Shared GPIOs */
  69 #define PALMTE_USBDETECT_GPIO   0
  70 #define PALMTE_USB_OR_DC_GPIO   1
  71 #define PALMTE_TSC_GPIO         4
  72 #define PALMTE_PINTDAV_GPIO     6
  73 #define PALMTE_MMC_WP_GPIO      8
  74 #define PALMTE_MMC_POWER_GPIO   9
  75 #define PALMTE_HDQ_GPIO         11
  76 #define PALMTE_HEADPHONES_GPIO  14
  77 #define PALMTE_SPEAKER_GPIO     15
  78 /* MPU private GPIOs */
  79 #define PALMTE_DC_GPIO          2
  80 #define PALMTE_MMC_SWITCH_GPIO  4
  81 #define PALMTE_MMC1_GPIO        6
  82 #define PALMTE_MMC2_GPIO        7
  83 #define PALMTE_MMC3_GPIO        11
  84
  85 static MouseTransformInfo palmte_pointercal = {
  86     .x = 320,
  87     .y = 320,
  88     .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  89 };
  90
  91 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  92 {
  93     uWireSlave *tsc;
  94
  95     tsc = tsc2102_init(qdev_get_gpio_in(cpu->gpio, PALMTE_PINTDAV_GPIO));
  96
  97     omap_uwire_attach(cpu->microwire, tsc, 0);
  98     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
  99
 100     tsc210x_set_transform(tsc, &palmte_pointercal);
 101 }
 102
 103 static struct {
 104     int row;
 105     int column;
 106 } palmte_keymap[0x80] = {
 107     [0 ... 0x7f] = { -1, -1 },
 108     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 109     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 110     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 111     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 112     [0x01] = { 4, 0 },  /* Esc  -> Power */
 113     [0x4b] = { 0, 1 },  /*         Left */
 114     [0x50] = { 1, 1 },  /*         Down */
 115     [0x48] = { 2, 1 },  /*         Up */
 116     [0x4d] = { 3, 1 },  /*         Right */
 117     [0x4c] = { 4, 1 },  /*         Centre */
 118     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 119 };
 120
 121 static void palmte_button_event(void *opaque, int keycode)
 122 {
 123     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 124
 125     if (palmte_keymap[keycode & 0x7f].row != -1)
 126         omap_mpuio_key(cpu->mpuio,
 127                         palmte_keymap[keycode & 0x7f].row,
 128                         palmte_keymap[keycode & 0x7f].column,
 129                         !(keycode & 0x80));
 130 }
 131
 132 static void palmte_onoff_gpios(void *opaque, int line, int level)
 133 {
 134     switch (line) {
 135     case 0:
 136         printf("%s: current to MMC/SD card %sabled.\n",
 137                         __FUNCTION__, level ? "dis" : "en");
 138         break;
 139     case 1:
 140         printf("%s: internal speaker amplifier %s.\n",
 141                         __FUNCTION__, level ? "down" : "on");
 142         break;
 143
 144     /* These LCD & Audio output signals have not been identified yet.  */
 145     case 2:
 146     case 3:
 147     case 4:
 148         printf("%s: LCD GPIO%i %s.\n",
 149                         __FUNCTION__, line - 1, level ? "high" : "low");
 150         break;
 151     case 5:
 152     case 6:
 153         printf("%s: Audio GPIO%i %s.\n",
 154                         __FUNCTION__, line - 4, level ? "high" : "low");
 155         break;
 156     }
 157 }
 158
 159 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 160 {
 161     qemu_irq *misc_gpio;
 162
 163     omap_mmc_handlers(cpu->mmc,
 164                     qdev_get_gpio_in(cpu->gpio, PALMTE_MMC_WP_GPIO),
 165                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 166                             [PALMTE_MMC_SWITCH_GPIO]));
 167
 168     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 169     qdev_connect_gpio_out(cpu->gpio, PALMTE_MMC_POWER_GPIO,     misc_gpio[0]);
 170     qdev_connect_gpio_out(cpu->gpio, PALMTE_SPEAKER_GPIO,       misc_gpio[1]);
 171     qdev_connect_gpio_out(cpu->gpio, 11,                        misc_gpio[2]);
 172     qdev_connect_gpio_out(cpu->gpio, 12,                        misc_gpio[3]);
 173     qdev_connect_gpio_out(cpu->gpio, 13,                        misc_gpio[4]);
 174     omap_mpuio_out_set(cpu->mpuio, 1,                           misc_gpio[5]);
 175     omap_mpuio_out_set(cpu->mpuio, 3,                           misc_gpio[6]);
 176
 177     /* Reset some inputs to initial state.  */
 178     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USBDETECT_GPIO));
 179     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USB_OR_DC_GPIO));
 180     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, 4));
 181     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_HEADPHONES_GPIO));
 182     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 183     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 184     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 185     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 186 }
 187
 188 static struct arm_boot_info palmte_binfo = {
 189     .loader_start = OMAP_EMIFF_BASE,
 190     .ram_size = 0x02000000,
 191     .board_id = 0x331,
 192 };
 193
 194 static void palmte_init(MachineState *machine)
 195 {
 196     const char *cpu_model = machine->cpu_model;
 197     const char *kernel_filename = machine->kernel_filename;
 198     const char *kernel_cmdline = machine->kernel_cmdline;
 199     const char *initrd_filename = machine->initrd_filename;
 200     MemoryRegion *address_space_mem = get_system_memory();
 201     struct omap_mpu_state_s *mpu;
 202     int flash_size = 0x00800000;
 203     int sdram_size = palmte_binfo.ram_size;
 204     static uint32_t cs0val = 0xffffffff;
 205     static uint32_t cs1val = 0x0000e1a0;
 206     static uint32_t cs2val = 0x0000e1a0;
 207     static uint32_t cs3val = 0xe1a0e1a0;
 208     int rom_size, rom_loaded = 0;
 209     MemoryRegion *flash = g_new(MemoryRegion, 1);
 210     MemoryRegion *cs = g_new(MemoryRegion, 4);
 211
 212     mpu = omap310_mpu_init(address_space_mem, sdram_size, cpu_model);
 213
 214     /* External Flash (EMIFS) */
 215     memory_region_init_ram(flash, NULL, "palmte.flash", flash_size);
 216     vmstate_register_ram_global(flash);
 217     memory_region_set_readonly(flash, true);
 218     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE, flash);
 219
 220     memory_region_init_io(&cs[0], NULL, &static_ops, &cs0val, "palmte-cs0",
 221                           OMAP_CS0_SIZE - flash_size);
 222     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE + flash_size,
 223                                 &cs[0]);
 224     memory_region_init_io(&cs[1], NULL, &static_ops, &cs1val, "palmte-cs1",
 225                           OMAP_CS1_SIZE);
 226     memory_region_add_subregion(address_space_mem, OMAP_CS1_BASE, &cs[1]);
 227     memory_region_init_io(&cs[2], NULL, &static_ops, &cs2val, "palmte-cs2",
 228                           OMAP_CS2_SIZE);
 229     memory_region_add_subregion(address_space_mem, OMAP_CS2_BASE, &cs[2]);
 230     memory_region_init_io(&cs[3], NULL, &static_ops, &cs3val, "palmte-cs3",
 231                           OMAP_CS3_SIZE);
 232     memory_region_add_subregion(address_space_mem, OMAP_CS3_BASE, &cs[3]);
 233
 234     palmte_microwire_setup(mpu);
 235
 236     qemu_add_kbd_event_handler(palmte_button_event, mpu);
 237
 238     palmte_gpio_setup(mpu);
 239
 240     /* Setup initial (reset) machine state */
 241     if (nb_option_roms) {
 242         rom_size = get_image_size(option_rom[0].name);
 243         if (rom_size > flash_size) {
 244             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 245                             __FUNCTION__, rom_size, flash_size);
 246             rom_size = 0;
 247         }
 248         if (rom_size > 0) {
 249             rom_size = load_image_targphys(option_rom[0].name, OMAP_CS0_BASE,
 250                                            flash_size);
 251             rom_loaded = 1;
 252         }
 253         if (rom_size < 0) {
 254             fprintf(stderr, "%s: error loading '%s'\n",
 255                             __FUNCTION__, option_rom[0].name);
 256         }
 257     }
 258
 259     if (!rom_loaded && !kernel_filename && !qtest_enabled()) {
 260         fprintf(stderr, "Kernel or ROM image must be specified\n");
 261         exit(1);
 262     }
 263
 264     /* Load the kernel.  */
 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(mpu->cpu, &palmte_binfo);
 269 }
 270
 271 static QEMUMachine palmte_machine = {
 272     .name = "cheetah",
 273     .desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 274     .init = palmte_init,
 275 };
 276
 277 static void palmte_machine_init(void)
 278 {
 279     qemu_register_machine(&palmte_machine);
 280 }
 281
 282 machine_init(palmte_machine_init);