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 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
  28 static uint32_t static_readb(void *opaque, target_phys_addr_t offset)
  29 {
  30     uint32_t *val = (uint32_t *) opaque;
  31     return *val >> ((offset & 3) << 3);
  32 }
  33
  34 static uint32_t static_readh(void *opaque, target_phys_addr_t offset)
  35 {
  36     uint32_t *val = (uint32_t *) opaque;
  37     return *val >> ((offset & 1) << 3);
  38 }
  39
  40 static uint32_t static_readw(void *opaque, target_phys_addr_t offset)
  41 {
  42     uint32_t *val = (uint32_t *) opaque;
  43     return *val >> ((offset & 0) << 3);
  44 }
  45
  46 static void static_write(void *opaque, target_phys_addr_t offset,
  47                 uint32_t value)
  48 {
  49 #ifdef SPY
  50     printf("%s: value %08lx written at " PA_FMT "\n",
  51                     __FUNCTION__, value, offset);
  52 #endif
  53 }
  54
  55 static CPUReadMemoryFunc *static_readfn[] = {
  56     static_readb,
  57     static_readh,
  58     static_readw,
  59 };
  60
  61 static CPUWriteMemoryFunc *static_writefn[] = {
  62     static_write,
  63     static_write,
  64     static_write,
  65 };
  66
  67 /* Palm Tunsgten|E support */
  68
  69 /* Shared GPIOs */
  70 #define PALMTE_USBDETECT_GPIO   0
  71 #define PALMTE_USB_OR_DC_GPIO   1
  72 #define PALMTE_TSC_GPIO         4
  73 #define PALMTE_PINTDAV_GPIO     6
  74 #define PALMTE_MMC_WP_GPIO      8
  75 #define PALMTE_MMC_POWER_GPIO   9
  76 #define PALMTE_HDQ_GPIO         11
  77 #define PALMTE_HEADPHONES_GPIO  14
  78 #define PALMTE_SPEAKER_GPIO     15
  79 /* MPU private GPIOs */
  80 #define PALMTE_DC_GPIO          2
  81 #define PALMTE_MMC_SWITCH_GPIO  4
  82 #define PALMTE_MMC1_GPIO        6
  83 #define PALMTE_MMC2_GPIO        7
  84 #define PALMTE_MMC3_GPIO        11
  85
  86 static MouseTransformInfo palmte_pointercal = {
  87     .x = 320,
  88     .y = 320,
  89     .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  90 };
  91
  92 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  93 {
  94     uWireSlave *tsc;
  95
  96     tsc = tsc2102_init(omap_gpio_in_get(cpu->gpio)[PALMTE_PINTDAV_GPIO]);
  97
  98     omap_uwire_attach(cpu->microwire, tsc, 0);
  99     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
 100
 101     tsc210x_set_transform(tsc, &palmte_pointercal);
 102 }
 103
 104 static struct {
 105     int row;
 106     int column;
 107 } palmte_keymap[0x80] = {
 108     [0 ... 0x7f] = { -1, -1 },
 109     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 110     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 111     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 112     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 113     [0x01] = { 4, 0 },  /* Esc  -> Power */
 114     [0x4b] = { 0, 1 },  /*         Left */
 115     [0x50] = { 1, 1 },  /*         Down */
 116     [0x48] = { 2, 1 },  /*         Up */
 117     [0x4d] = { 3, 1 },  /*         Right */
 118     [0x4c] = { 4, 1 },  /*         Centre */
 119     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 120 };
 121
 122 static void palmte_button_event(void *opaque, int keycode)
 123 {
 124     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 125
 126     if (palmte_keymap[keycode & 0x7f].row != -1)
 127         omap_mpuio_key(cpu->mpuio,
 128                         palmte_keymap[keycode & 0x7f].row,
 129                         palmte_keymap[keycode & 0x7f].column,
 130                         !(keycode & 0x80));
 131 }
 132
 133 static void palmte_onoff_gpios(void *opaque, int line, int level)
 134 {
 135     switch (line) {
 136     case 0:
 137         printf("%s: current to MMC/SD card %sabled.\n",
 138                         __FUNCTION__, level ? "dis" : "en");
 139         break;
 140     case 1:
 141         printf("%s: internal speaker amplifier %s.\n",
 142                         __FUNCTION__, level ? "down" : "on");
 143         break;
 144
 145     /* These LCD & Audio output signals have not been identified yet.  */
 146     case 2:
 147     case 3:
 148     case 4:
 149         printf("%s: LCD GPIO%i %s.\n",
 150                         __FUNCTION__, line - 1, level ? "high" : "low");
 151         break;
 152     case 5:
 153     case 6:
 154         printf("%s: Audio GPIO%i %s.\n",
 155                         __FUNCTION__, line - 4, level ? "high" : "low");
 156         break;
 157     }
 158 }
 159
 160 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 161 {
 162     qemu_irq *misc_gpio;
 163
 164     omap_mmc_handlers(cpu->mmc,
 165                     omap_gpio_in_get(cpu->gpio)[PALMTE_MMC_WP_GPIO],
 166                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 167                             [PALMTE_MMC_SWITCH_GPIO]));
 168
 169     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 170     omap_gpio_out_set(cpu->gpio, PALMTE_MMC_POWER_GPIO, misc_gpio[0]);
 171     omap_gpio_out_set(cpu->gpio, PALMTE_SPEAKER_GPIO,   misc_gpio[1]);
 172     omap_gpio_out_set(cpu->gpio, 11,                    misc_gpio[2]);
 173     omap_gpio_out_set(cpu->gpio, 12,                    misc_gpio[3]);
 174     omap_gpio_out_set(cpu->gpio, 13,                    misc_gpio[4]);
 175     omap_mpuio_out_set(cpu->mpuio, 1,                   misc_gpio[5]);
 176     omap_mpuio_out_set(cpu->mpuio, 3,                   misc_gpio[6]);
 177
 178     /* Reset some inputs to initial state.  */
 179     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USBDETECT_GPIO]);
 180     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USB_OR_DC_GPIO]);
 181     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[4]);
 182     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_HEADPHONES_GPIO]);
 183     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 184     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 185     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 186     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 187 }
 188
 189 static struct arm_boot_info palmte_binfo = {
 190     .loader_start = OMAP_EMIFF_BASE,
 191     .ram_size = 0x02000000,
 192     .board_id = 0x331,
 193 };
 194
 195 static void palmte_init(ram_addr_t ram_size,
 196                 const char *boot_device,
 197                 const char *kernel_filename, const char *kernel_cmdline,
 198                 const char *initrd_filename, const char *cpu_model)
 199 {
 200     struct omap_mpu_state_s *cpu;
 201     int flash_size = 0x00800000;
 202     int sdram_size = palmte_binfo.ram_size;
 203     int io;
 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     ram_addr_t phys_flash;
 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                     (phys_flash = qemu_ram_alloc(flash_size)) | IO_MEM_ROM);
 217
 218     io = cpu_register_io_memory(static_readfn, static_writefn, &cs0val);
 219     cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
 220                     OMAP_CS0_SIZE - flash_size, io);
 221     io = cpu_register_io_memory(static_readfn, static_writefn, &cs1val);
 222     cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
 223     io = cpu_register_io_memory(static_readfn, static_writefn, &cs2val);
 224     cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
 225     io = cpu_register_io_memory(static_readfn, static_writefn, &cs3val);
 226     cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
 227
 228     palmte_microwire_setup(cpu);
 229
 230     qemu_add_kbd_event_handler(palmte_button_event, cpu);
 231
 232     palmte_gpio_setup(cpu);
 233
 234     /* Setup initial (reset) machine state */
 235     if (nb_option_roms) {
 236         rom_size = get_image_size(option_rom[0]);
 237         if (rom_size > flash_size) {
 238             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 239                             __FUNCTION__, rom_size, flash_size);
 240             rom_size = 0;
 241         }
 242         if (rom_size > 0) {
 243             rom_size = load_image_targphys(option_rom[0], OMAP_CS0_BASE,
 244                                            flash_size);
 245             rom_loaded = 1;
 246             cpu->env->regs[15] = 0x00000000;
 247         }
 248         if (rom_size < 0) {
 249             fprintf(stderr, "%s: error loading '%s'\n",
 250                             __FUNCTION__, option_rom[0]);
 251         }
 252     }
 253
 254     if (!rom_loaded && !kernel_filename) {
 255         fprintf(stderr, "Kernel or ROM image must be specified\n");
 256         exit(1);
 257     }
 258
 259     /* Load the kernel.  */
 260     if (kernel_filename) {
 261         /* Start at bootloader.  */
 262         cpu->env->regs[15] = palmte_binfo.loader_start;
 263
 264         palmte_binfo.kernel_filename = kernel_filename;
 265         palmte_binfo.kernel_cmdline = kernel_cmdline;
 266         palmte_binfo.initrd_filename = initrd_filename;
 267         arm_load_kernel(cpu->env, &palmte_binfo);
 268     }
 269
 270     /* FIXME: We shouldn't really be doing this here.  The LCD controller
 271        will set the size once configured, so this just sets an initial
 272        size until the guest activates the display.  */
 273     ds->surface = qemu_resize_displaysurface(ds, 320, 320);
 274     dpy_resize(ds);
 275 }
 276
 277 static QEMUMachine palmte_machine = {
 278     .name = "cheetah",
 279     .desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 280     .init = palmte_init,
 281 };
 282
 283 static void palmte_machine_init(void)
 284 {
 285     qemu_register_machine(&palmte_machine);
 286 }
 287
 288 machine_init(palmte_machine_init);