hw/arm/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 "qemu/osdep.h"
  20 #include "qapi/error.h"
  21 #include "hw/hw.h"
  22 #include "audio/audio.h"
  23 #include "sysemu/sysemu.h"
  24 #include "sysemu/qtest.h"
  25 #include "ui/console.h"
  26 #include "hw/arm/omap.h"
  27 #include "hw/boards.h"
  28 #include "hw/arm/arm.h"
  29 #include "hw/devices.h"
  30 #include "hw/loader.h"
  31 #include "exec/address-spaces.h"
  32
  33 static uint32_t static_readb(void *opaque, hwaddr offset)
  34 {
  35     uint32_t *val = (uint32_t *) opaque;
  36     return *val >> ((offset & 3) << 3);
  37 }
  38
  39 static uint32_t static_readh(void *opaque, hwaddr offset)
  40 {
  41     uint32_t *val = (uint32_t *) opaque;
  42     return *val >> ((offset & 1) << 3);
  43 }
  44
  45 static uint32_t static_readw(void *opaque, hwaddr offset)
  46 {
  47     uint32_t *val = (uint32_t *) opaque;
  48     return *val >> ((offset & 0) << 3);
  49 }
  50
  51 static void static_write(void *opaque, hwaddr offset,
  52                 uint32_t value)
  53 {
  54 #ifdef SPY
  55     printf("%s: value %08lx written at " PA_FMT "\n",
  56                     __FUNCTION__, value, offset);
  57 #endif
  58 }
  59
  60 static const MemoryRegionOps static_ops = {
  61     .old_mmio = {
  62         .read = { static_readb, static_readh, static_readw, },
  63         .write = { static_write, static_write, static_write, },
  64     },
  65     .endianness = DEVICE_NATIVE_ENDIAN,
  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(qdev_get_gpio_in(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                     qdev_get_gpio_in(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     qdev_connect_gpio_out(cpu->gpio, PALMTE_MMC_POWER_GPIO,     misc_gpio[0]);
 172     qdev_connect_gpio_out(cpu->gpio, PALMTE_SPEAKER_GPIO,       misc_gpio[1]);
 173     qdev_connect_gpio_out(cpu->gpio, 11,                        misc_gpio[2]);
 174     qdev_connect_gpio_out(cpu->gpio, 12,                        misc_gpio[3]);
 175     qdev_connect_gpio_out(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(qdev_get_gpio_in(cpu->gpio, PALMTE_USBDETECT_GPIO));
 181     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, PALMTE_USB_OR_DC_GPIO));
 182     qemu_irq_lower(qdev_get_gpio_in(cpu->gpio, 4));
 183     qemu_irq_lower(qdev_get_gpio_in(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(MachineState *machine)
 197 {
 198     const char *cpu_model = machine->cpu_model;
 199     const char *kernel_filename = machine->kernel_filename;
 200     const char *kernel_cmdline = machine->kernel_cmdline;
 201     const char *initrd_filename = machine->initrd_filename;
 202     MemoryRegion *address_space_mem = get_system_memory();
 203     struct omap_mpu_state_s *mpu;
 204     int flash_size = 0x00800000;
 205     int sdram_size = palmte_binfo.ram_size;
 206     static uint32_t cs0val = 0xffffffff;
 207     static uint32_t cs1val = 0x0000e1a0;
 208     static uint32_t cs2val = 0x0000e1a0;
 209     static uint32_t cs3val = 0xe1a0e1a0;
 210     int rom_size, rom_loaded = 0;
 211     MemoryRegion *flash = g_new(MemoryRegion, 1);
 212     MemoryRegion *cs = g_new(MemoryRegion, 4);
 213
 214     mpu = omap310_mpu_init(address_space_mem, sdram_size, cpu_model);
 215
 216     /* External Flash (EMIFS) */
 217     memory_region_init_ram(flash, NULL, "palmte.flash", flash_size,
 218                            &error_fatal);
 219     vmstate_register_ram_global(flash);
 220     memory_region_set_readonly(flash, true);
 221     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE, flash);
 222
 223     memory_region_init_io(&cs[0], NULL, &static_ops, &cs0val, "palmte-cs0",
 224                           OMAP_CS0_SIZE - flash_size);
 225     memory_region_add_subregion(address_space_mem, OMAP_CS0_BASE + flash_size,
 226                                 &cs[0]);
 227     memory_region_init_io(&cs[1], NULL, &static_ops, &cs1val, "palmte-cs1",
 228                           OMAP_CS1_SIZE);
 229     memory_region_add_subregion(address_space_mem, OMAP_CS1_BASE, &cs[1]);
 230     memory_region_init_io(&cs[2], NULL, &static_ops, &cs2val, "palmte-cs2",
 231                           OMAP_CS2_SIZE);
 232     memory_region_add_subregion(address_space_mem, OMAP_CS2_BASE, &cs[2]);
 233     memory_region_init_io(&cs[3], NULL, &static_ops, &cs3val, "palmte-cs3",
 234                           OMAP_CS3_SIZE);
 235     memory_region_add_subregion(address_space_mem, OMAP_CS3_BASE, &cs[3]);
 236
 237     palmte_microwire_setup(mpu);
 238
 239     qemu_add_kbd_event_handler(palmte_button_event, mpu);
 240
 241     palmte_gpio_setup(mpu);
 242
 243     /* Setup initial (reset) machine state */
 244     if (nb_option_roms) {
 245         rom_size = get_image_size(option_rom[0].name);
 246         if (rom_size > flash_size) {
 247             fprintf(stderr, "%s: ROM image too big (%x > %x)\n",
 248                             __FUNCTION__, rom_size, flash_size);
 249             rom_size = 0;
 250         }
 251         if (rom_size > 0) {
 252             rom_size = load_image_targphys(option_rom[0].name, OMAP_CS0_BASE,
 253                                            flash_size);
 254             rom_loaded = 1;
 255         }
 256         if (rom_size < 0) {
 257             fprintf(stderr, "%s: error loading '%s'\n",
 258                             __FUNCTION__, option_rom[0].name);
 259         }
 260     }
 261
 262     if (!rom_loaded && !kernel_filename && !qtest_enabled()) {
 263         fprintf(stderr, "Kernel or ROM image must be specified\n");
 264         exit(1);
 265     }
 266
 267     /* Load the kernel.  */
 268     palmte_binfo.kernel_filename = kernel_filename;
 269     palmte_binfo.kernel_cmdline = kernel_cmdline;
 270     palmte_binfo.initrd_filename = initrd_filename;
 271     arm_load_kernel(mpu->cpu, &palmte_binfo);
 272 }
 273
 274 static void palmte_machine_init(MachineClass *mc)
 275 {
 276     mc->desc = "Palm Tungsten|E aka. Cheetah PDA (OMAP310)";
 277     mc->init = palmte_init;
 278 }
 279
 280 DEFINE_MACHINE("cheetah", palmte_machine_init)