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 "vl.h"
  22
  23 static uint32_t static_readb(void *opaque, target_phys_addr_t offset)
  24 {
  25     uint32_t *val = (uint32_t *) opaque;
  26     return *val >> ((offset & 3) << 3);
  27 }
  28
  29 static uint32_t static_readh(void *opaque, target_phys_addr_t offset) {
  30     uint32_t *val = (uint32_t *) opaque;
  31     return *val >> ((offset & 1) << 3);
  32 }
  33
  34 static uint32_t static_readw(void *opaque, target_phys_addr_t offset) {
  35     uint32_t *val = (uint32_t *) opaque;
  36     return *val >> ((offset & 0) << 3);
  37 }
  38
  39 static void static_write(void *opaque, target_phys_addr_t offset,
  40                 uint32_t value)
  41 {
  42 #ifdef SPY
  43     printf("%s: value %08lx written at " PA_FMT "\n",
  44                     __FUNCTION__, value, offset);
  45 #endif
  46 }
  47
  48 static CPUReadMemoryFunc *static_readfn[] = {
  49     static_readb,
  50     static_readh,
  51     static_readw,
  52 };
  53
  54 static CPUWriteMemoryFunc *static_writefn[] = {
  55     static_write,
  56     static_write,
  57     static_write,
  58 };
  59
  60 /* Palm Tunsgten|E support */
  61
  62 /* Shared GPIOs */
  63 #define PALMTE_USBDETECT_GPIO   0
  64 #define PALMTE_USB_OR_DC_GPIO   1
  65 #define PALMTE_TSC_GPIO         4
  66 #define PALMTE_PINTDAV_GPIO     6
  67 #define PALMTE_MMC_WP_GPIO      8
  68 #define PALMTE_MMC_POWER_GPIO   9
  69 #define PALMTE_HDQ_GPIO         11
  70 #define PALMTE_HEADPHONES_GPIO  14
  71 #define PALMTE_SPEAKER_GPIO     15
  72 /* MPU private GPIOs */
  73 #define PALMTE_DC_GPIO          2
  74 #define PALMTE_MMC_SWITCH_GPIO  4
  75 #define PALMTE_MMC1_GPIO        6
  76 #define PALMTE_MMC2_GPIO        7
  77 #define PALMTE_MMC3_GPIO        11
  78
  79 static void palmte_microwire_setup(struct omap_mpu_state_s *cpu)
  80 {
  81     omap_uwire_attach(
  82                     cpu->microwire,
  83                     tsc2102_init(
  84                             omap_gpio_in_get(cpu->gpio)[PALMTE_PINTDAV_GPIO]),
  85                     0);
  86 }
  87
  88 static struct {
  89     int row;
  90     int column;
  91 } palmte_keymap[0x80] = {
  92     [0 ... 0x7f] = { -1, -1 },
  93     [0x3b] = { 0, 0 },  /* F1   -> Calendar */
  94     [0x3c] = { 1, 0 },  /* F2   -> Contacts */
  95     [0x3d] = { 2, 0 },  /* F3   -> Tasks List */
  96     [0x3e] = { 3, 0 },  /* F4   -> Note Pad */
  97     [0x01] = { 4, 0 },  /* Esc  -> Power */
  98     [0x4b] = { 0, 1 },  /*         Left */
  99     [0x50] = { 1, 1 },  /*         Down */
 100     [0x48] = { 2, 1 },  /*         Up */
 101     [0x4d] = { 3, 1 },  /*         Right */
 102     [0x4c] = { 4, 1 },  /*         Centre */
 103     [0x39] = { 4, 1 },  /* Spc  -> Centre */
 104 };
 105
 106 static void palmte_button_event(void *opaque, int keycode)
 107 {
 108     struct omap_mpu_state_s *cpu = (struct omap_mpu_state_s *) opaque;
 109
 110     if (palmte_keymap[keycode & 0x7f].row != -1)
 111         omap_mpuio_key(cpu->mpuio,
 112                         palmte_keymap[keycode & 0x7f].row,
 113                         palmte_keymap[keycode & 0x7f].column,
 114                         !(keycode & 0x80));
 115 }
 116
 117 static void palmte_onoff_gpios(void *opaque, int line, int level)
 118 {
 119     switch (line) {
 120     case 0:
 121         printf("%s: current to MMC/SD card %sabled.\n",
 122                         __FUNCTION__, level ? "dis" : "en");
 123         break;
 124     case 1:
 125         printf("%s: internal speaker amplifier %s.\n",
 126                         __FUNCTION__, level ? "down" : "on");
 127         break;
 128
 129     /* These LCD & Audio output signals have not been identified yet.  */
 130     case 2:
 131     case 3:
 132     case 4:
 133         printf("%s: LCD GPIO%i %s.\n",
 134                         __FUNCTION__, line - 1, level ? "high" : "low");
 135         break;
 136     case 5:
 137     case 6:
 138         printf("%s: Audio GPIO%i %s.\n",
 139                         __FUNCTION__, line - 4, level ? "high" : "low");
 140         break;
 141     }
 142 }
 143
 144 static void palmte_gpio_setup(struct omap_mpu_state_s *cpu)
 145 {
 146     qemu_irq *misc_gpio;
 147
 148     omap_mmc_handlers(cpu->mmc,
 149                     omap_gpio_in_get(cpu->gpio)[PALMTE_MMC_WP_GPIO],
 150                     qemu_irq_invert(omap_mpuio_in_get(cpu->mpuio)
 151                             [PALMTE_MMC_SWITCH_GPIO]));
 152
 153     misc_gpio = qemu_allocate_irqs(palmte_onoff_gpios, cpu, 7);
 154     omap_gpio_out_set(cpu->gpio, PALMTE_MMC_POWER_GPIO, misc_gpio[0]);
 155     omap_gpio_out_set(cpu->gpio, PALMTE_SPEAKER_GPIO,   misc_gpio[1]);
 156     omap_gpio_out_set(cpu->gpio, 11,                    misc_gpio[2]);
 157     omap_gpio_out_set(cpu->gpio, 12,                    misc_gpio[3]);
 158     omap_gpio_out_set(cpu->gpio, 13,                    misc_gpio[4]);
 159     omap_mpuio_out_set(cpu->mpuio, 1,                   misc_gpio[5]);
 160     omap_mpuio_out_set(cpu->mpuio, 3,                   misc_gpio[6]);
 161
 162     /* Reset some inputs to initial state.  */
 163     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USBDETECT_GPIO]);
 164     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_USB_OR_DC_GPIO]);
 165     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[4]);
 166     qemu_irq_lower(omap_gpio_in_get(cpu->gpio)[PALMTE_HEADPHONES_GPIO]);
 167     qemu_irq_lower(omap_mpuio_in_get(cpu->mpuio)[PALMTE_DC_GPIO]);
 168     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[6]);
 169     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[7]);
 170     qemu_irq_raise(omap_mpuio_in_get(cpu->mpuio)[11]);
 171 }
 172
 173 static void palmte_init(int ram_size, int vga_ram_size,
 174                 const char *boot_device, DisplayState *ds,
 175                 const char **fd_filename, int snapshot,
 176                 const char *kernel_filename, const char *kernel_cmdline,
 177                 const char *initrd_filename, const char *cpu_model)
 178 {
 179     struct omap_mpu_state_s *cpu;
 180     int flash_size = 0x00800000;
 181     int sdram_size = 0x02000000;
 182     int io;
 183     static uint32_t cs0val = 0xffffffff;
 184     static uint32_t cs1val = 0x0000e1a0;
 185     static uint32_t cs2val = 0x0000e1a0;
 186     static uint32_t cs3val = 0xe1a0e1a0;
 187     ram_addr_t phys_flash;
 188     int rom_size, rom_loaded = 0;
 189
 190     if (ram_size < flash_size + sdram_size + OMAP15XX_SRAM_SIZE) {
 191         fprintf(stderr, "This architecture uses %i bytes of memory\n",
 192                         flash_size + sdram_size + OMAP15XX_SRAM_SIZE);
 193         exit(1);
 194     }
 195
 196     cpu = omap310_mpu_init(sdram_size, ds, cpu_model);
 197
 198     /* External Flash (EMIFS) */
 199     cpu_register_physical_memory(OMAP_CS0_BASE, flash_size,
 200                     (phys_flash = qemu_ram_alloc(flash_size)) | IO_MEM_ROM);
 201
 202     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs0val);
 203     cpu_register_physical_memory(OMAP_CS0_BASE + flash_size,
 204                     OMAP_CS0_SIZE - flash_size, io);
 205     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs1val);
 206     cpu_register_physical_memory(OMAP_CS1_BASE, OMAP_CS1_SIZE, io);
 207     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs2val);
 208     cpu_register_physical_memory(OMAP_CS2_BASE, OMAP_CS2_SIZE, io);
 209     io = cpu_register_io_memory(0, static_readfn, static_writefn, &cs3val);
 210     cpu_register_physical_memory(OMAP_CS3_BASE, OMAP_CS3_SIZE, io);
 211
 212     palmte_microwire_setup(cpu);
 213
 214     qemu_add_kbd_event_handler(palmte_button_event, cpu);
 215
 216     palmte_gpio_setup(cpu);
 217
 218     /* Setup initial (reset) machine state */
 219     if (nb_option_roms) {
 220         rom_size = get_image_size(option_rom[0]);
 221         if (rom_size > flash_size)
 222             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 223                             __FUNCTION__, rom_size, flash_size);
 224         else if (rom_size > 0 && load_image(option_rom[0],
 225                                 phys_ram_base + phys_flash) > 0) {
 226             rom_loaded = 1;
 227             cpu->env->regs[15] = 0x00000000;
 228         } else
 229             fprintf(stderr, "%s: error loading '%s'\n",
 230                             __FUNCTION__, option_rom[0]);
 231     }
 232
 233     if (!rom_loaded && !kernel_filename) {
 234         fprintf(stderr, "Kernel or ROM image must be specified\n");
 235         exit(1);
 236     }
 237
 238     /* Load the kernel.  */
 239     if (kernel_filename) {
 240         /* Start at bootloader.  */
 241         cpu->env->regs[15] = OMAP_EMIFF_BASE;
 242
 243         arm_load_kernel(cpu->env, sdram_size, kernel_filename, kernel_cmdline,
 244                         initrd_filename, 0x331, OMAP_EMIFF_BASE);
 245     }
 246
 247     dpy_resize(ds, 320, 320);
 248 }
 249
 250 QEMUMachine palmte_machine = {
 251     "cheetah",
 252     "Palm Tungsten|E aka. Cheetah PDA (OMAP310)",
 253     palmte_init,
 254 };