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 of
   9  * the License, or (at your option) any later version.
  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
  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     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     uint32_t *val = (uint32_t *) opaque;
  42     return *val >> ((offset & 0) << 3);
  43 }
  44
  45 static void static_write(void *opaque, target_phys_addr_t offset,
  46                 uint32_t value)
  47 {
  48 #ifdef SPY
  49     printf("%s: value %08lx written at " PA_FMT "\n",
  50                     __FUNCTION__, value, offset);
  51 #endif
  52 }
  53
  54 static CPUReadMemoryFunc *static_readfn[] = {
  55     static_readb,
  56     static_readh,
  57     static_readw,
  58 };
  59
  60 static CPUWriteMemoryFunc *static_writefn[] = {
  61     static_write,
  62     static_write,
  63     static_write,
  64 };
  65
  66 /* Palm Tunsgten|E support */
  67
  68 /* Shared GPIOs */
  69 #define PALMTE_USBDETECT_GPIO   0
  70 #define PALMTE_USB_OR_DC_GPIO   1
  71 #define PALMTE_TSC_GPIO         4
  72 #define PALMTE_PINTDAV_GPIO     6
  73 #define PALMTE_MMC_WP_GPIO      8
  74 #define PALMTE_MMC_POWER_GPIO   9
  75 #define PALMTE_HDQ_GPIO         11
  76 #define PALMTE_HEADPHONES_GPIO  14
  77 #define PALMTE_SPEAKER_GPIO     15
  78 /* MPU private GPIOs */
  79 #define PALMTE_DC_GPIO          2
  80 #define PALMTE_MMC_SWITCH_GPIO  4
  81 #define PALMTE_MMC1_GPIO        6
  82 #define PALMTE_MMC2_GPIO        7
  83 #define PALMTE_MMC3_GPIO        11
  84
  85 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  86 {
  87     struct uwire_slave_s *tsc;
  88     AudioState *audio = 0;
  89
  90 #ifdef HAS_AUDIO
  91     audio = AUD_init();
  92 #endif
  93
  94     tsc = tsc2102_init(omap_gpio_in_get(cpu->gpio)[PALMTE_PINTDAV_GPIO],
  95                     audio);
  96
  97     omap_uwire_attach(cpu->microwire, tsc, 0);
  98     omap_mcbsp_i2s_attach(cpu->mcbsp1, tsc210x_codec(tsc));
  99 }
 100
 101 static struct {
 102     int row;
 103     int column;
 104 } palmte_keymap[0x80] = {
 105     [0 ... 0x7f] = { -1, -1 },
 106     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
 107     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
 108     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
 109     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
 110     [0x01] = { 4, 0 },  /* Esc  -> Power */
 111     [0x4b] = { 0, 1 },  /*         Left */
 112     [0x50] = { 1, 1 },  /*         Down */
 113     [0x48] = { 2, 1 },  /*         Up */
 114     [0x4d] = { 3, 1 },  /*         Right */
 115     [0x4c] = { 4, 1 },  /*         Centre */
 116     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 117 };
 118
 119 static void palmte_button_event(void *opaque, int keycode)
 120 {
 121     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 122
 123     if (palmte_keymap[keycode & 0x7f].row != -1)
 124         omap_mpuio_key(cpu->mpuio,
 125                         palmte_keymap[keycode & 0x7f].row,
 126                         palmte_keymap[keycode & 0x7f].column,
 127                         !(keycode & 0x80));
 128 }
 129
 130 static void palmte_onoff_gpios(void *opaque, int line, int level)
 131 {
 132     switch (line) {
 133     case 0:
 134         printf("%s: current to MMC/SD card %sabled.\n",
 135                         __FUNCTION__, level ? "dis" : "en");
 136         break;
 137     case 1:
 138         printf("%s: internal speaker amplifier %s.\n",
 139                         __FUNCTION__, level ? "down" : "on");
 140         break;
 141
 142     /* These LCD & Audio output signals have not been identified yet.  */
 143     case 2:
 144     case 3:
 145     case 4:
 146         printf("%s: LCD GPIO%i %s.\n",
 147                         __FUNCTION__, line - 1, level ? "high" : "low");
 148         break;
 149     case 5:
 150     case 6:
 151         printf("%s: Audio GPIO%i %s.\n",
 152                         __FUNCTION__, line - 4, level ? "high" : "low");
 153         break;
 154     }
 155 }
 156
 157 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 158 {
 159     qemu_irq *misc_gpio;
 160
 161     omap_mmc_handlers(cpu->mmc,
 162                     omap_gpio_in_get(cpu->gpio)[PALMTE_MMC_WP_GPIO],
 163                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 164                             [PALMTE_MMC_SWITCH_GPIO]));
 165
 166     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 167     omap_gpio_out_set(cpu->gpio, PALMTE_MMC_POWER_GPIO, misc_gpio[0]);
 168     omap_gpio_out_set(cpu->gpio, PALMTE_SPEAKER_GPIO,   misc_gpio[1]);
 169     omap_gpio_out_set(cpu->gpio, 11,                    misc_gpio[2]);
 170     omap_gpio_out_set(cpu->gpio, 12,                    misc_gpio[3]);
 171     omap_gpio_out_set(cpu->gpio, 13,                    misc_gpio[4]);
 172     omap_mpuio_out_set(cpu->mpuio, 1,                   misc_gpio[5]);
 173     omap_mpuio_out_set(cpu->mpuio, 3,                   misc_gpio[6]);
 174
 175     /* Reset some inputs to initial state.  */
 176     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USBDETECT_GPIO]);
 177     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USB_OR_DC_GPIO]);
 178     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[4]);
 179     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_HEADPHONES_GPIO]);
 180     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 181     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 182     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 183     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 184 }
 185
 186 static void palmte_init(int ram_size, int vga_ram_size,
 187                 const char *boot_device, DisplayState *ds,
 188                 const char *kernel_filename, const char *kernel_cmdline,
 189                 const char *initrd_filename, const char *cpu_model)
 190 {
 191     struct omap_mpu_state_s *cpu;
 192     int flash_size = 0x00800000;
 193     int sdram_size = 0x02000000;
 194     int io;
 195     static uint32_t cs0val = 0xffffffff;
 196     static uint32_t cs1val = 0x0000e1a0;
 197     static uint32_t cs2val = 0x0000e1a0;
 198     static uint32_t cs3val = 0xe1a0e1a0;
 199     ram_addr_t phys_flash;
 200     int rom_size, rom_loaded = 0;
 201
 202     if (ram_size < flash_size + sdram_size + OMAP15XX_SRAM_SIZE) {
 203         fprintf(stderr, "This architecture uses %i bytes of memory\n",
 204                         flash_size + sdram_size + OMAP15XX_SRAM_SIZE);
 205         exit(1);
 206     }
 207
 208     cpu = omap310_mpu_init(sdram_size, ds, cpu_model);
 209
 210     /* External Flash (EMIFS) */
 211     cpu_register_physical_memory(OMAP_CS0_BASE, flash_size,
 212                     (phys_flash = qemu_ram_alloc(flash_size)) | IO_MEM_ROM);
 213
 214     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs0val);
 215     cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
 216                     OMAP_CS0_SIZE - flash_size, io);
 217     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs1val);
 218     cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
 219     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs2val);
 220     cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
 221     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs3val);
 222     cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
 223
 224     palmte_microwire_setup(cpu);
 225
 226     qemu_add_kbd_event_handler(palmte_button_event, cpu);
 227
 228     palmte_gpio_setup(cpu);
 229
 230     /* Setup initial (reset) machine state */
 231     if (nb_option_roms) {
 232         rom_size = get_image_size(option_rom[0]);
 233         if (rom_size > flash_size)
 234             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 235                             __FUNCTION__, rom_size, flash_size);
 236         else if (rom_size > 0 && load_image(option_rom[0],
 237                                 phys_ram_base + phys_flash) > 0) {
 238             rom_loaded = 1;
 239             cpu->env->regs[15] = 0x00000000;
 240         } else
 241             fprintf(stderr, "%s: error loading '%s'\n",
 242                             __FUNCTION__, option_rom[0]);
 243     }
 244
 245     if (!rom_loaded && !kernel_filename) {
 246         fprintf(stderr, "Kernel or ROM image must be specified\n");
 247         exit(1);
 248     }
 249
 250     /* Load the kernel.  */
 251     if (kernel_filename) {
 252         /* Start at bootloader.  */
 253         cpu->env->regs[15] = OMAP_EMIFF_BASE;
 254
 255         arm_load_kernel(cpu->env, sdram_size, kernel_filename, kernel_cmdline,
 256                         initrd_filename, 0x331, OMAP_EMIFF_BASE);
 257     }
 258
 259     dpy_resize(ds, 320, 320);
 260 }
 261
 262 QEMUMachine palmte_machine = {
 263     "cheetah",
 264     "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 265     palmte_init,
 266 };