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 #include "loader.h"
  28
  29 static uint32_t static_readb(void *opaque, target_phys_addr_t offset)
  30 {
  31     uint32_t *val = (uint32_t *) opaque;
  32     return *val >> ((offset & 3) << 3);
  33 }
  34
  35 static uint32_t static_readh(void *opaque, target_phys_addr_t offset)
  36 {
  37     uint32_t *val = (uint32_t *) opaque;
  38     return *val >> ((offset & 1) << 3);
  39 }
  40
  41 static uint32_t static_readw(void *opaque, target_phys_addr_t offset)
  42 {
  43     uint32_t *val = (uint32_t *) opaque;
  44     return *val >> ((offset & 0) << 3);
  45 }
  46
  47 static void static_write(void *opaque, target_phys_addr_t offset,
  48                 uint32_t value)
  49 {
  50 #ifdef SPY
  51     printf("%s: value %08lx written at " PA_FMT "\n",
  52                     __FUNCTION__, value, offset);
  53 #endif
  54 }
  55
  56 static CPUReadMemoryFunc * const static_readfn[] = {
  57     static_readb,
  58     static_readh,
  59     static_readw,
  60 };
  61
  62 static CPUWriteMemoryFunc * const static_writefn[] = {
  63     static_write,
  64     static_write,
  65     static_write,
  66 };
  67
  68 /* Palm Tunsgten|E support */
  69
  70 /* Shared GPIOs */
  71 #define PALMTE_USBDETECT_GPIO   0
  72 #define PALMTE_USB_OR_DC_GPIO   1
  73 #define PALMTE_TSC_GPIO         4
  74 #define PALMTE_PINTDAV_GPIO     6
  75 #define PALMTE_MMC_WP_GPIO      8
  76 #define PALMTE_MMC_POWER_GPIO   9
  77 #define PALMTE_HDQ_GPIO         11
  78 #define PALMTE_HEADPHONES_GPIO  14
  79 #define PALMTE_SPEAKER_GPIO     15
  80 /* MPU private GPIOs */
  81 #define PALMTE_DC_GPIO          2
  82 #define PALMTE_MMC_SWITCH_GPIO  4
  83 #define PALMTE_MMC1_GPIO        6
  84 #define PALMTE_MMC2_GPIO        7
  85 #define PALMTE_MMC3_GPIO        11
  86
  87 static MouseTransformInfo palmte_pointercal = {
  88     .x = 320,
  89     .y = 320,
  90     .a = { -5909, 8, 22465308, 104, 7644, -1219972, 65536 },
  91 };
  92
  93 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  94 {
  95     uWireSlave *tsc;
  96
  97     tsc = tsc2102_init(omap_gpio_in_get(cpu->gpio)[PALMTE_PINTDAV_GPIO]);
  98
  99     omap_uwire_attach(cpu->microwire, tsc, 0);
 100     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
 101
 102     tsc210x_set_transform(tsc, &palmte_pointercal);
 103 }
 104
 105 static struct {
 106     int row;
 107     int column;
 108 } palmte_keymap[0x80] = {
 109     [0 ... 0x7f] = { -1, -1 },
 110     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 111     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 112     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 113     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 114     [0x01] = { 4, 0 },  /* Esc  -> Power */
 115     [0x4b] = { 0, 1 },  /*         Left */
 116     [0x50] = { 1, 1 },  /*         Down */
 117     [0x48] = { 2, 1 },  /*         Up */
 118     [0x4d] = { 3, 1 },  /*         Right */
 119     [0x4c] = { 4, 1 },  /*         Centre */
 120     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 121 };
 122
 123 static void palmte_button_event(void *opaque, int keycode)
 124 {
 125     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 126
 127     if (palmte_keymap[keycode & 0x7f].row != -1)
 128         omap_mpuio_key(cpu->mpuio,
 129                         palmte_keymap[keycode & 0x7f].row,
 130                         palmte_keymap[keycode & 0x7f].column,
 131                         !(keycode & 0x80));
 132 }
 133
 134 static void palmte_onoff_gpios(void *opaque, int line, int level)
 135 {
 136     switch (line) {
 137     case 0:
 138         printf("%s: current to MMC/SD card %sabled.\n",
 139                         __FUNCTION__, level ? "dis" : "en");
 140         break;
 141     case 1:
 142         printf("%s: internal speaker amplifier %s.\n",
 143                         __FUNCTION__, level ? "down" : "on");
 144         break;
 145
 146     /* These LCD & Audio output signals have not been identified yet.  */
 147     case 2:
 148     case 3:
 149     case 4:
 150         printf("%s: LCD GPIO%i %s.\n",
 151                         __FUNCTION__, line - 1, level ? "high" : "low");
 152         break;
 153     case 5:
 154     case 6:
 155         printf("%s: Audio GPIO%i %s.\n",
 156                         __FUNCTION__, line - 4, level ? "high" : "low");
 157         break;
 158     }
 159 }
 160
 161 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 162 {
 163     qemu_irq *misc_gpio;
 164
 165     omap_mmc_handlers(cpu->mmc,
 166                     omap_gpio_in_get(cpu->gpio)[PALMTE_MMC_WP_GPIO],
 167                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 168                             [PALMTE_MMC_SWITCH_GPIO]));
 169
 170     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 171     omap_gpio_out_set(cpu->gpio, PALMTE_MMC_POWER_GPIO, misc_gpio[0]);
 172     omap_gpio_out_set(cpu->gpio, PALMTE_SPEAKER_GPIO,   misc_gpio[1]);
 173     omap_gpio_out_set(cpu->gpio, 11,                    misc_gpio[2]);
 174     omap_gpio_out_set(cpu->gpio, 12,                    misc_gpio[3]);
 175     omap_gpio_out_set(cpu->gpio, 13,                    misc_gpio[4]);
 176     omap_mpuio_out_set(cpu->mpuio, 1,                   misc_gpio[5]);
 177     omap_mpuio_out_set(cpu->mpuio, 3,                   misc_gpio[6]);
 178
 179     /* Reset some inputs to initial state.  */
 180     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USBDETECT_GPIO]);
 181     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USB_OR_DC_GPIO]);
 182     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[4]);
 183     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_HEADPHONES_GPIO]);
 184     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 185     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 186     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 187     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 188 }
 189
 190 static struct arm_boot_info palmte_binfo = {
 191     .loader_start = OMAP_EMIFF_BASE,
 192     .ram_size = 0x02000000,
 193     .board_id = 0x331,
 194 };
 195
 196 static void palmte_init(ram_addr_t ram_size,
 197                 const char *boot_device,
 198                 const char *kernel_filename, const char *kernel_cmdline,
 199                 const char *initrd_filename, const char *cpu_model)
 200 {
 201     struct omap_mpu_state_s *cpu;
 202     int flash_size = 0x00800000;
 203     int sdram_size = palmte_binfo.ram_size;
 204     int io;
 205     static uint32_t cs0val = 0xffffffff;
 206     static uint32_t cs1val = 0x0000e1a0;
 207     static uint32_t cs2val = 0x0000e1a0;
 208     static uint32_t cs3val = 0xe1a0e1a0;
 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                                  qemu_ram_alloc(NULL, "palmte.flash",
 217                                                 flash_size) | IO_MEM_ROM);
 218
 219     io = cpu_register_io_memory(static_readfn, static_writefn, &cs0val);
 220     cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
 221                     OMAP_CS0_SIZE - flash_size, io);
 222     io = cpu_register_io_memory(static_readfn, static_writefn, &cs1val);
 223     cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
 224     io = cpu_register_io_memory(static_readfn, static_writefn, &cs2val);
 225     cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
 226     io = cpu_register_io_memory(static_readfn, static_writefn, &cs3val);
 227     cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
 228
 229     palmte_microwire_setup(cpu);
 230
 231     qemu_add_kbd_event_handler(palmte_button_event, cpu);
 232
 233     palmte_gpio_setup(cpu);
 234
 235     /* Setup initial (reset) machine state */
 236     if (nb_option_roms) {
 237         rom_size = get_image_size(option_rom[0]);
 238         if (rom_size > flash_size) {
 239             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 240                             __FUNCTION__, rom_size, flash_size);
 241             rom_size = 0;
 242         }
 243         if (rom_size > 0) {
 244             rom_size = load_image_targphys(option_rom[0], OMAP_CS0_BASE,
 245                                            flash_size);
 246             rom_loaded = 1;
 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         palmte_binfo.kernel_filename = kernel_filename;
 262         palmte_binfo.kernel_cmdline = kernel_cmdline;
 263         palmte_binfo.initrd_filename = initrd_filename;
 264         arm_load_kernel(cpu->env, &palmte_binfo);
 265     }
 266
 267     /* FIXME: We shouldn't really be doing this here.  The LCD controller
 268        will set the size once configured, so this just sets an initial
 269        size until the guest activates the display.  */
 270     ds->surface = qemu_resize_displaysurface(ds, 320, 320);
 271     dpy_resize(ds);
 272 }
 273
 274 static QEMUMachine palmte_machine = {
 275     .name = "cheetah",
 276     .desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 277     .init = palmte_init,
 278 };
 279
 280 static void palmte_machine_init(void)
 281 {
 282     qemu_register_machine(&palmte_machine);
 283 }
 284
 285 machine_init(palmte_machine_init);