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 "ui/console.h"
  23 #include "hw/arm/omap.h"
  24 #include "hw/boards.h"
  25 #include "hw/arm/arm.h"
  26 #include "hw/devices.h"
  27 #include "hw/loader.h"
  28 #include "exec/address-spaces.h"
  29
  30 static uint32_t static_readb(void *opaque, hwaddr offset)
  31 {
  32     uint32_t *val = (uint32_t *) opaque;
  33     return *val >> ((offset & 3) << 3);
  34 }
  35
  36 static uint32_t static_readh(void *opaque, hwaddr offset)
  37 {
  38     uint32_t *val = (uint32_t *) opaque;
  39     return *val >> ((offset & 1) << 3);
  40 }
  41
  42 static uint32_t static_readw(void *opaque, hwaddr offset)
  43 {
  44     uint32_t *val = (uint32_t *) opaque;
  45     return *val >> ((offset & 0) << 3);
  46 }
  47
  48 static void static_write(void *opaque, hwaddr offset,
  49                 uint32_t value)
  50 {
  51 #ifdef SPY
  52     printf("%s: value %08lx written at " PA_FMT "\n",
  53                     __FUNCTION__, value, offset);
  54 #endif
  55 }
  56
  57 static const MemoryRegionOps static_ops = {
  58     .old_mmio = {
  59         .read = { static_readb, static_readh, static_readw, },
  60         .write = { static_write, static_write, static_write, },
  61     },
  62     .endianness = DEVICE_NATIVE_ENDIAN,
  63 };
  64
  65 /* Palm Tunsgten|E support */
  66
  67 /* Shared GPIOs */
  68 #define PALMTE_USBDETECT_GPIO   0
  69 #define PALMTE_USB_OR_DC_GPIO   1
  70 #define PALMTE_TSC_GPIO         4
  71 #define PALMTE_PINTDAV_GPIO     6
  72 #define PALMTE_MMC_WP_GPIO      8
  73 #define PALMTE_MMC_POWER_GPIO   9
  74 #define PALMTE_HDQ_GPIO         11
  75 #define PALMTE_HEADPHONES_GPIO  14
  76 #define PALMTE_SPEAKER_GPIO     15
  77 /* MPU private GPIOs */
  78 #define PALMTE_DC_GPIO          2
  79 #define PALMTE_MMC_SWITCH_GPIO  4
  80 #define PALMTE_MMC1_GPIO        6
  81 #define PALMTE_MMC2_GPIO        7
  82 #define PALMTE_MMC3_GPIO        11
  83
  84 static MouseTransformInfo palmte_pointercal = {
  85     .x = 320,
  86     .y = 320,
  87     .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  88 };
  89
  90 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  91 {
  92     uWireSlave *tsc;
  93
  94     tsc = tsc2102_init(qdev_get_gpio_in(cpu->gpio, PALMTE_PINTDAV_GPIO));
  95
  96     omap_uwire_attach(cpu->microwire, tsc, 0);
  97     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
  98
  99     tsc210x_set_transform(tsc, &palmte_pointercal);
 100 }
 101
 102 static struct {
 103     int row;
 104     int column;
 105 } palmte_keymap[0x80] = {
 106     [0 ... 0x7f] = { -1, -1 },
 107     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 108     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 109     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 110     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 111     [0x01] = { 4, 0 },  /* Esc  -> Power */
 112     [0x4b] = { 0, 1 },  /*         Left */
 113     [0x50] = { 1, 1 },  /*         Down */
 114     [0x48] = { 2, 1 },  /*         Up */
 115     [0x4d] = { 3, 1 },  /*         Right */
 116     [0x4c] = { 4, 1 },  /*         Centre */
 117     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 118 };
 119
 120 static void palmte_button_event(void *opaque, int keycode)
 121 {
 122     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 123
 124     if (palmte_keymap[keycode & 0x7f].row != -1)
 125         omap_mpuio_key(cpu->mpuio,
 126                         palmte_keymap[keycode & 0x7f].row,
 127                         palmte_keymap[keycode & 0x7f].column,
 128                         !(keycode & 0x80));
 129 }
 130
 131 static void palmte_onoff_gpios(void *opaque, int line, int level)
 132 {
 133     switch (line) {
 134     case 0:
 135         printf("%s: current to MMC/SD card %sabled.\n",
 136                         __FUNCTION__, level ? "dis" : "en");
 137         break;
 138     case 1:
 139         printf("%s: internal speaker amplifier %s.\n",
 140                         __FUNCTION__, level ? "down" : "on");
 141         break;
 142
 143     /* These LCD & Audio output signals have not been identified yet.  */
 144     case 2:
 145     case 3:
 146     case 4:
 147         printf("%s: LCD GPIO%i %s.\n",
 148                         __FUNCTION__, line - 1, level ? "high" : "low");
 149         break;
 150     case 5:
 151     case 6:
 152         printf("%s: Audio GPIO%i %s.\n",
 153                         __FUNCTION__, line - 4, level ? "high" : "low");
 154         break;
 155     }
 156 }
 157
 158 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 159 {
 160     qemu_irq *misc_gpio;
 161
 162     omap_mmc_handlers(cpu->mmc,
 163                     qdev_get_gpio_in(cpu->gpio, PALMTE_MMC_WP_GPIO),
 164                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 165                             [PALMTE_MMC_SWITCH_GPIO]));
 166
 167     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 168     qdev_connect_gpio_out(cpu->gpio, PALMTE_MMC_POWER_GPIO,     misc_gpio[0]);
 169     qdev_connect_gpio_out(cpu->gpio, PALMTE_SPEAKER_GPIO,       misc_gpio[1]);
 170     qdev_connect_gpio_out(cpu->gpio, 11,                        misc_gpio[2]);
 171     qdev_connect_gpio_out(cpu->gpio, 12,                        misc_gpio[3]);
 172     qdev_connect_gpio_out(cpu->gpio, 13,                        misc_gpio[4]);
 173     omap_mpuio_out_set(cpu->mpuio, 1,                           misc_gpio[5]);
 174     omap_mpuio_out_set(cpu->mpuio, 3,                           misc_gpio[6]);
 175
 176     /* Reset some inputs to initial state.  */
 177     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USBDETECT_GPIO));
 178     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USB_OR_DC_GPIO));
 179     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, 4));
 180     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_HEADPHONES_GPIO));
 181     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 182     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 183     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 184     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 185 }
 186
 187 static struct arm_boot_info palmte_binfo = {
 188     .loader_start = OMAP_EMIFF_BASE,
 189     .ram_size = 0x02000000,
 190     .board_id = 0x331,
 191 };
 192
 193 static void palmte_init(QEMUMachineInitArgs *args)
 194 {
 195     const char *cpu_model = args->cpu_model;
 196     const char *kernel_filename = args->kernel_filename;
 197     const char *kernel_cmdline = args->kernel_cmdline;
 198     const char *initrd_filename = args->initrd_filename;
 199     MemoryRegion *address_space_mem = get_system_memory();
 200     struct omap_mpu_state_s *mpu;
 201     int flash_size = 0x00800000;
 202     int sdram_size = palmte_binfo.ram_size;
 203     static uint32_t cs0val = 0xffffffff;
 204     static uint32_t cs1val = 0x0000e1a0;
 205     static uint32_t cs2val = 0x0000e1a0;
 206     static uint32_t cs3val = 0xe1a0e1a0;
 207     int rom_size, rom_loaded = 0;
 208     MemoryRegion *flash = g_new(MemoryRegion, 1);
 209     MemoryRegion *cs = g_new(MemoryRegion, 4);
 210
 211     mpu = omap310_mpu_init(address_space_mem, sdram_size, cpu_model);
 212
 213     /* External Flash (EMIFS) */
 214     memory_region_init_ram(flash, "palmte.flash", flash_size);
 215     vmstate_register_ram_global(flash);
 216     memory_region_set_readonly(flash, true);
 217     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE, flash);
 218
 219     memory_region_init_io(&cs[0], &static_ops, &cs0val, "palmte-cs0",
 220                           OMAP_CS0_SIZE - flash_size);
 221     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE + flash_size,
 222                                 &cs[0]);
 223     memory_region_init_io(&cs[1], &static_ops, &cs1val, "palmte-cs1",
 224                           OMAP_CS1_SIZE);
 225     memory_region_add_subregion(address_space_mem, OMAP_CS1_BASE, &cs[1]);
 226     memory_region_init_io(&cs[2], &static_ops, &cs2val, "palmte-cs2",
 227                           OMAP_CS2_SIZE);
 228     memory_region_add_subregion(address_space_mem, OMAP_CS2_BASE, &cs[2]);
 229     memory_region_init_io(&cs[3], &static_ops, &cs3val, "palmte-cs3",
 230                           OMAP_CS3_SIZE);
 231     memory_region_add_subregion(address_space_mem, OMAP_CS3_BASE, &cs[3]);
 232
 233     palmte_microwire_setup(mpu);
 234
 235     qemu_add_kbd_event_handler(palmte_button_event, mpu);
 236
 237     palmte_gpio_setup(mpu);
 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(mpu->cpu, &palmte_binfo);
 269     }
 270 }
 271
 272 static QEMUMachine palmte_machine = {
 273     .name = "cheetah",
 274     .desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 275     .init = palmte_init,
 276     DEFAULT_MACHINE_OPTIONS,
 277 };
 278
 279 static void palmte_machine_init(void)
 280 {
 281     qemu_register_machine(&palmte_machine);
 282 }
 283
 284 machine_init(palmte_machine_init);