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 "hw/hw.h"
  23 #include "audio/audio.h"
  24 #include "sysemu/sysemu.h"
  25 #include "sysemu/qtest.h"
  26 #include "ui/console.h"
  27 #include "hw/arm/omap.h"
  28 #include "hw/boards.h"
  29 #include "hw/arm/boot.h"
  30 #include "hw/input/tsc2xxx.h"
  31 #include "hw/irq.h"
  32 #include "hw/loader.h"
  33 #include "exec/address-spaces.h"
  34 #include "cpu.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 static void palmte_onoff_gpios(void *opaque, int line, int level)
 128 {
 129     switch (line) {
 130     case 0:
 131         printf("%s: current to MMC/SD card %sabled.\n",
 132                         __func__, level ? "dis" : "en");
 133         break;
 134     case 1:
 135         printf("%s: internal speaker amplifier %s.\n",
 136                         __func__, level ? "down" : "on");
 137         break;
 138
 139     /* These LCD & Audio output signals have not been identified yet.  */
 140     case 2:
 141     case 3:
 142     case 4:
 143         printf("%s: LCD GPIO%i %s.\n",
 144                         __func__, line - 1, level ? "high" : "low");
 145         break;
 146     case 5:
 147     case 6:
 148         printf("%s: Audio GPIO%i %s.\n",
 149                         __func__, line - 4, level ? "high" : "low");
 150         break;
 151     }
 152 }
 153
 154 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 155 {
 156     qemu_irq *misc_gpio;
 157
 158     omap_mmc_handlers(cpu->mmc,
 159                     qdev_get_gpio_in(cpu->gpio, PALMTE_MMC_WP_GPIO),
 160                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 161                             [PALMTE_MMC_SWITCH_GPIO]));
 162
 163     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 164     qdev_connect_gpio_out(cpu->gpio, PALMTE_MMC_POWER_GPIO,     misc_gpio[0]);
 165     qdev_connect_gpio_out(cpu->gpio, PALMTE_SPEAKER_GPIO,       misc_gpio[1]);
 166     qdev_connect_gpio_out(cpu->gpio, 11,                        misc_gpio[2]);
 167     qdev_connect_gpio_out(cpu->gpio, 12,                        misc_gpio[3]);
 168     qdev_connect_gpio_out(cpu->gpio, 13,                        misc_gpio[4]);
 169     omap_mpuio_out_set(cpu->mpuio, 1,                           misc_gpio[5]);
 170     omap_mpuio_out_set(cpu->mpuio, 3,                           misc_gpio[6]);
 171
 172     /* Reset some inputs to initial state.  */
 173     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USBDETECT_GPIO));
 174     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USB_OR_DC_GPIO));
 175     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, 4));
 176     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_HEADPHONES_GPIO));
 177     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 178     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 179     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 180     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 181 }
 182
 183 static struct arm_boot_info palmte_binfo = {
 184     .loader_start = OMAP_EMIFF_BASE,
 185     .ram_size = 0x02000000,
 186     .board_id = 0x331,
 187 };
 188
 189 static void palmte_init(MachineState *machine)
 190 {
 191     const char *kernel_filename = machine->kernel_filename;
 192     const char *kernel_cmdline = machine->kernel_cmdline;
 193     const char *initrd_filename = machine->initrd_filename;
 194     MemoryRegion *address_space_mem = get_system_memory();
 195     struct omap_mpu_state_s *mpu;
 196     int flash_size = 0x00800000;
 197     int sdram_size = palmte_binfo.ram_size;
 198     static uint32_t cs0val = 0xffffffff;
 199     static uint32_t cs1val = 0x0000e1a0;
 200     static uint32_t cs2val = 0x0000e1a0;
 201     static uint32_t cs3val = 0xe1a0e1a0;
 202     int rom_size, rom_loaded = 0;
 203     MemoryRegion *flash = g_new(MemoryRegion, 1);
 204     MemoryRegion *cs = g_new(MemoryRegion, 4);
 205
 206     mpu = omap310_mpu_init(address_space_mem, sdram_size, machine->cpu_type);
 207
 208     /* External Flash (EMIFS) */
 209     memory_region_init_ram(flash, NULL, "palmte.flash", flash_size,
 210                            &error_fatal);
 211     memory_region_set_readonly(flash, true);
 212     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE, flash);
 213
 214     memory_region_init_io(&cs[0], NULL, &static_ops, &cs0val, "palmte-cs0",
 215                           OMAP_CS0_SIZE - flash_size);
 216     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE + flash_size,
 217                                 &cs[0]);
 218     memory_region_init_io(&cs[1], NULL, &static_ops, &cs1val, "palmte-cs1",
 219                           OMAP_CS1_SIZE);
 220     memory_region_add_subregion(address_space_mem, OMAP_CS1_BASE, &cs[1]);
 221     memory_region_init_io(&cs[2], NULL, &static_ops, &cs2val, "palmte-cs2",
 222                           OMAP_CS2_SIZE);
 223     memory_region_add_subregion(address_space_mem, OMAP_CS2_BASE, &cs[2]);
 224     memory_region_init_io(&cs[3], NULL, &static_ops, &cs3val, "palmte-cs3",
 225                           OMAP_CS3_SIZE);
 226     memory_region_add_subregion(address_space_mem, OMAP_CS3_BASE, &cs[3]);
 227
 228     palmte_microwire_setup(mpu);
 229
 230     qemu_add_kbd_event_handler(palmte_button_event, mpu);
 231
 232     palmte_gpio_setup(mpu);
 233
 234     /* Setup initial (reset) machine state */
 235     if (nb_option_roms) {
 236         rom_size = get_image_size(option_rom[0].name);
 237         if (rom_size > flash_size) {
 238             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 239                             __func__, rom_size, flash_size);
 240             rom_size = 0;
 241         }
 242         if (rom_size > 0) {
 243             rom_size = load_image_targphys(option_rom[0].name, OMAP_CS0_BASE,
 244                                            flash_size);
 245             rom_loaded = 1;
 246         }
 247         if (rom_size < 0) {
 248             fprintf(stderr, "%s: error loading '%s'\n",
 249                             __func__, option_rom[0].name);
 250         }
 251     }
 252
 253     if (!rom_loaded && !kernel_filename && !qtest_enabled()) {
 254         fprintf(stderr, "Kernel or ROM image must be specified\n");
 255         exit(1);
 256     }
 257
 258     /* Load the kernel.  */
 259     palmte_binfo.kernel_filename = kernel_filename;
 260     palmte_binfo.kernel_cmdline = kernel_cmdline;
 261     palmte_binfo.initrd_filename = initrd_filename;
 262     arm_load_kernel(mpu->cpu, &palmte_binfo);
 263 }
 264
 265 static void palmte_machine_init(MachineClass *mc)
 266 {
 267     mc->desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)";
 268     mc->init = palmte_init;
 269     mc->ignore_memory_transaction_failures = true;
 270     mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
 271 }
 272
 273 DEFINE_MACHINE("cheetah", palmte_machine_init)