hw/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
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19  * MA 02111-1307 USA
  20  */
  21 #include "hw.h"
  22 #include "audio/audio.h"
  23 #include "sysemu.h"
  24 #include "console.h"
  25 #include "omap.h"
  26 #include "boards.h"
  27 #include "arm-misc.h"
  28 #include "devices.h"
  29
  30 static uint32_t static_readb(void *opaque, target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t offset)
  43 {
  44     uint32_t *val = (uint32_t *) opaque;
  45     return *val >> ((offset & 0) << 3);
  46 }
  47
  48 static void static_write(void *opaque, target_phys_addr_t 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 CPUReadMemoryFunc *static_readfn[] = {
  58     static_readb,
  59     static_readh,
  60     static_readw,
  61 };
  62
  63 static CPUWriteMemoryFunc *static_writefn[] = {
  64     static_write,
  65     static_write,
  66     static_write,
  67 };
  68
  69 /* Palm Tunsgten|E support */
  70
  71 /* Shared GPIOs */
  72 #define PALMTE_USBDETECT_GPIO   0
  73 #define PALMTE_USB_OR_DC_GPIO   1
  74 #define PALMTE_TSC_GPIO         4
  75 #define PALMTE_PINTDAV_GPIO     6
  76 #define PALMTE_MMC_WP_GPIO      8
  77 #define PALMTE_MMC_POWER_GPIO   9
  78 #define PALMTE_HDQ_GPIO         11
  79 #define PALMTE_HEADPHONES_GPIO  14
  80 #define PALMTE_SPEAKER_GPIO     15
  81 /* MPU private GPIOs */
  82 #define PALMTE_DC_GPIO          2
  83 #define PALMTE_MMC_SWITCH_GPIO  4
  84 #define PALMTE_MMC1_GPIO        6
  85 #define PALMTE_MMC2_GPIO        7
  86 #define PALMTE_MMC3_GPIO        11
  87
  88 static struct mouse_transform_info_s palmte_pointercal = {
  89     .x = 320,
  90     .y = 320,
  91     .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  92 };
  93
  94 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  95 {
  96     struct uwire_slave_s *tsc;
  97     AudioState *audio = 0;
  98
  99 #ifdef HAS_AUDIO
 100     audio = AUD_init();
 101 #endif
 102
 103     tsc = tsc2102_init(omap_gpio_in_get(cpu->gpio)[PALMTE_PINTDAV_GPIO],
 104                     audio);
 105
 106     omap_uwire_attach(cpu->microwire, tsc, 0);
 107     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
 108
 109     tsc210x_set_transform(tsc, &palmte_pointercal);
 110 }
 111
 112 static struct {
 113     int row;
 114     int column;
 115 } palmte_keymap[0x80] = {
 116     [0 ... 0x7f] = { -1, -1 },
 117     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 118     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 119     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 120     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 121     [0x01] = { 4, 0 },  /* Esc  -> Power */
 122     [0x4b] = { 0, 1 },  /*         Left */
 123     [0x50] = { 1, 1 },  /*         Down */
 124     [0x48] = { 2, 1 },  /*         Up */
 125     [0x4d] = { 3, 1 },  /*         Right */
 126     [0x4c] = { 4, 1 },  /*         Centre */
 127     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 128 };
 129
 130 static void palmte_button_event(void *opaque, int keycode)
 131 {
 132     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 133
 134     if (palmte_keymap[keycode & 0x7f].row != -1)
 135         omap_mpuio_key(cpu->mpuio,
 136                         palmte_keymap[keycode & 0x7f].row,
 137                         palmte_keymap[keycode & 0x7f].column,
 138                         !(keycode & 0x80));
 139 }
 140
 141 static void palmte_onoff_gpios(void *opaque, int line, int level)
 142 {
 143     switch (line) {
 144     case 0:
 145         printf("%s: current to MMC/SD card %sabled.\n",
 146                         __FUNCTION__, level ? "dis" : "en");
 147         break;
 148     case 1:
 149         printf("%s: internal speaker amplifier %s.\n",
 150                         __FUNCTION__, level ? "down" : "on");
 151         break;
 152
 153     /* These LCD & Audio output signals have not been identified yet.  */
 154     case 2:
 155     case 3:
 156     case 4:
 157         printf("%s: LCD GPIO%i %s.\n",
 158                         __FUNCTION__, line - 1, level ? "high" : "low");
 159         break;
 160     case 5:
 161     case 6:
 162         printf("%s: Audio GPIO%i %s.\n",
 163                         __FUNCTION__, line - 4, level ? "high" : "low");
 164         break;
 165     }
 166 }
 167
 168 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 169 {
 170     qemu_irq *misc_gpio;
 171
 172     omap_mmc_handlers(cpu->mmc,
 173                     omap_gpio_in_get(cpu->gpio)[PALMTE_MMC_WP_GPIO],
 174                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 175                             [PALMTE_MMC_SWITCH_GPIO]));
 176
 177     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 178     omap_gpio_out_set(cpu->gpio, PALMTE_MMC_POWER_GPIO, misc_gpio[0]);
 179     omap_gpio_out_set(cpu->gpio, PALMTE_SPEAKER_GPIO,   misc_gpio[1]);
 180     omap_gpio_out_set(cpu->gpio, 11,                    misc_gpio[2]);
 181     omap_gpio_out_set(cpu->gpio, 12,                    misc_gpio[3]);
 182     omap_gpio_out_set(cpu->gpio, 13,                    misc_gpio[4]);
 183     omap_mpuio_out_set(cpu->mpuio, 1,                   misc_gpio[5]);
 184     omap_mpuio_out_set(cpu->mpuio, 3,                   misc_gpio[6]);
 185
 186     /* Reset some inputs to initial state.  */
 187     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USBDETECT_GPIO]);
 188     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USB_OR_DC_GPIO]);
 189     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[4]);
 190     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_HEADPHONES_GPIO]);
 191     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 192     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 193     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 194     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 195 }
 196
 197 static struct arm_boot_info palmte_binfo = {
 198     .loader_start = OMAP_EMIFF_BASE,
 199     .ram_size = 0x02000000,
 200     .board_id = 0x331,
 201 };
 202
 203 static void palmte_init(ram_addr_t ram_size, int vga_ram_size,
 204                 const char *boot_device, DisplayState *ds,
 205                 const char *kernel_filename, const char *kernel_cmdline,
 206                 const char *initrd_filename, const char *cpu_model)
 207 {
 208     struct omap_mpu_state_s *cpu;
 209     int flash_size = 0x00800000;
 210     int sdram_size = palmte_binfo.ram_size;
 211     int io;
 212     static uint32_t cs0val = 0xffffffff;
 213     static uint32_t cs1val = 0x0000e1a0;
 214     static uint32_t cs2val = 0x0000e1a0;
 215     static uint32_t cs3val = 0xe1a0e1a0;
 216     ram_addr_t phys_flash;
 217     int rom_size, rom_loaded = 0;
 218
 219     if (ram_size < flash_size + sdram_size + OMAP15XX_SRAM_SIZE) {
 220         fprintf(stderr, "This architecture uses %i bytes of memory\n",
 221                         flash_size + sdram_size + OMAP15XX_SRAM_SIZE);
 222         exit(1);
 223     }
 224
 225     cpu = omap310_mpu_init(sdram_size, ds, cpu_model);
 226
 227     /* External Flash (EMIFS) */
 228     cpu_register_physical_memory(OMAP_CS0_BASE, flash_size,
 229                     (phys_flash = qemu_ram_alloc(flash_size)) | IO_MEM_ROM);
 230
 231     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs0val);
 232     cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
 233                     OMAP_CS0_SIZE - flash_size, io);
 234     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs1val);
 235     cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
 236     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs2val);
 237     cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
 238     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs3val);
 239     cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
 240
 241     palmte_microwire_setup(cpu);
 242
 243     qemu_add_kbd_event_handler(palmte_button_event, cpu);
 244
 245     palmte_gpio_setup(cpu);
 246
 247     /* Setup initial (reset) machine state */
 248     if (nb_option_roms) {
 249         rom_size = get_image_size(option_rom[0]);
 250         if (rom_size > flash_size)
 251             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 252                             __FUNCTION__, rom_size, flash_size);
 253         else if (rom_size > 0 && load_image(option_rom[0],
 254                                 phys_ram_base + phys_flash) > 0) {
 255             rom_loaded = 1;
 256             cpu->env->regs[15] = 0x00000000;
 257         } else
 258             fprintf(stderr, "%s: error loading '%s'\n",
 259                             __FUNCTION__, option_rom[0]);
 260     }
 261
 262     if (!rom_loaded && !kernel_filename) {
 263         fprintf(stderr, "Kernel or ROM image must be specified\n");
 264         exit(1);
 265     }
 266
 267     /* Load the kernel.  */
 268     if (kernel_filename) {
 269         /* Start at bootloader.  */
 270         cpu->env->regs[15] = palmte_binfo.loader_start;
 271
 272         palmte_binfo.kernel_filename = kernel_filename;
 273         palmte_binfo.kernel_cmdline = kernel_cmdline;
 274         palmte_binfo.initrd_filename = initrd_filename;
 275         arm_load_kernel(cpu->env, &palmte_binfo);
 276     }
 277
 278     /* FIXME: We shouldn't really be doing this here.  The LCD controller
 279        will set the size once configured, so this just sets an initial
 280        size until the guest activates the display.  */
 281     dpy_resize(ds, 320, 320);
 282 }
 283
 284 QEMUMachine palmte_machine = {
 285     "cheetah",
 286     "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 287     palmte_init,
 288     (0x02000000 + 0x00800000 + OMAP15XX_SRAM_SIZE) | RAMSIZE_FIXED,
 289 };