root/arch/arm/mach-omap1/board-sx1.c

DEFINITIONS

1. sx1_i2c_write_byte
2. sx1_i2c_read_byte
3. sx1_setkeylight
4. sx1_getkeylight
5. sx1_setbacklight
6. sx1_getbacklight
7. sx1_setmmipower
8. sx1_setusbpower
9. omap_sx1_init

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3 * linux/arch/arm/mach-omap1/board-sx1.c
   4 *
   5 * Modified from board-generic.c
   6 *
   7 * Support for the Siemens SX1 mobile phone.
   8 *
   9 * Original version : Vladimir Ananiev (Vovan888-at-gmail com)
  10 *
  11 * Maintainters : Vladimir Ananiev (aka Vovan888), Sergge
  12 *               oslik.ru
  13 */
  14 #include <linux/gpio.h>
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/input.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/notifier.h>
  20 #include <linux/mtd/mtd.h>
  21 #include <linux/mtd/partitions.h>
  22 #include <linux/mtd/physmap.h>
  23 #include <linux/types.h>
  24 #include <linux/i2c.h>
  25 #include <linux/errno.h>
  26 #include <linux/export.h>
  27 #include <linux/omapfb.h>
  28 #include <linux/platform_data/keypad-omap.h>
  29 
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33 
  34 #include "flash.h"
  35 #include <mach/mux.h>
  36 #include <linux/omap-dma.h>
  37 #include <mach/tc.h>
  38 #include "board-sx1.h"
  39 
  40 #include <mach/hardware.h>
  41 #include <mach/usb.h>
  42 
  43 #include "common.h"
  44 
  45 /* Write to I2C device */
  46 int sx1_i2c_write_byte(u8 devaddr, u8 regoffset, u8 value)
  47 {
  48         struct i2c_adapter *adap;
  49         int err;
  50         struct i2c_msg msg[1];
  51         unsigned char data[2];
  52 
  53         adap = i2c_get_adapter(0);
  54         if (!adap)
  55                 return -ENODEV;
  56         msg->addr = devaddr;    /* I2C address of chip */
  57         msg->flags = 0;
  58         msg->len = 2;
  59         msg->buf = data;
  60         data[0] = regoffset;    /* register num */
  61         data[1] = value;                /* register data */
  62         err = i2c_transfer(adap, msg, 1);
  63         i2c_put_adapter(adap);
  64         if (err >= 0)
  65                 return 0;
  66         return err;
  67 }
  68 
  69 /* Read from I2C device */
  70 int sx1_i2c_read_byte(u8 devaddr, u8 regoffset, u8 *value)
  71 {
  72         struct i2c_adapter *adap;
  73         int err;
  74         struct i2c_msg msg[1];
  75         unsigned char data[2];
  76 
  77         adap = i2c_get_adapter(0);
  78         if (!adap)
  79                 return -ENODEV;
  80 
  81         msg->addr = devaddr;    /* I2C address of chip */
  82         msg->flags = 0;
  83         msg->len = 1;
  84         msg->buf = data;
  85         data[0] = regoffset;    /* register num */
  86         err = i2c_transfer(adap, msg, 1);
  87 
  88         msg->addr = devaddr;    /* I2C address */
  89         msg->flags = I2C_M_RD;
  90         msg->len = 1;
  91         msg->buf = data;
  92         err = i2c_transfer(adap, msg, 1);
  93         *value = data[0];
  94         i2c_put_adapter(adap);
  95 
  96         if (err >= 0)
  97                 return 0;
  98         return err;
  99 }
 100 /* set keyboard backlight intensity */
 101 int sx1_setkeylight(u8 keylight)
 102 {
 103         if (keylight > SOFIA_MAX_LIGHT_VAL)
 104                 keylight = SOFIA_MAX_LIGHT_VAL;
 105         return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight);
 106 }
 107 /* get current keylight intensity */
 108 int sx1_getkeylight(u8 * keylight)
 109 {
 110         return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight);
 111 }
 112 /* set LCD backlight intensity */
 113 int sx1_setbacklight(u8 backlight)
 114 {
 115         if (backlight > SOFIA_MAX_LIGHT_VAL)
 116                 backlight = SOFIA_MAX_LIGHT_VAL;
 117         return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG,
 118                                   backlight);
 119 }
 120 /* get current LCD backlight intensity */
 121 int sx1_getbacklight (u8 * backlight)
 122 {
 123         return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG,
 124                                  backlight);
 125 }
 126 /* set LCD backlight power on/off */
 127 int sx1_setmmipower(u8 onoff)
 128 {
 129         int err;
 130         u8 dat = 0;
 131         err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
 132         if (err < 0)
 133                 return err;
 134         if (onoff)
 135                 dat |= SOFIA_MMILIGHT_POWER;
 136         else
 137                 dat &= ~SOFIA_MMILIGHT_POWER;
 138         return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
 139 }
 140 
 141 /* set USB power on/off */
 142 int sx1_setusbpower(u8 onoff)
 143 {
 144         int err;
 145         u8 dat = 0;
 146         err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
 147         if (err < 0)
 148                 return err;
 149         if (onoff)
 150                 dat |= SOFIA_USB_POWER;
 151         else
 152                 dat &= ~SOFIA_USB_POWER;
 153         return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
 154 }
 155 
 156 EXPORT_SYMBOL(sx1_setkeylight);
 157 EXPORT_SYMBOL(sx1_getkeylight);
 158 EXPORT_SYMBOL(sx1_setbacklight);
 159 EXPORT_SYMBOL(sx1_getbacklight);
 160 EXPORT_SYMBOL(sx1_setmmipower);
 161 EXPORT_SYMBOL(sx1_setusbpower);
 162 
 163 /*----------- Keypad -------------------------*/
 164 
 165 static const unsigned int sx1_keymap[] = {
 166         KEY(3, 5, GROUP_0 | 117), /* camera Qt::Key_F17 */
 167         KEY(4, 0, GROUP_0 | 114), /* voice memo Qt::Key_F14 */
 168         KEY(4, 1, GROUP_2 | 114), /* voice memo */
 169         KEY(4, 2, GROUP_3 | 114), /* voice memo */
 170         KEY(0, 0, GROUP_1 | KEY_F12),   /* red button Qt::Key_Hangup */
 171         KEY(3, 4, GROUP_1 | KEY_LEFT),
 172         KEY(3, 2, GROUP_1 | KEY_DOWN),
 173         KEY(3, 1, GROUP_1 | KEY_RIGHT),
 174         KEY(3, 0, GROUP_1 | KEY_UP),
 175         KEY(3, 3, GROUP_1 | KEY_POWER), /* joystick press or Qt::Key_Select */
 176         KEY(0, 5, GROUP_1 | KEY_1),
 177         KEY(0, 4, GROUP_1 | KEY_2),
 178         KEY(0, 3, GROUP_1 | KEY_3),
 179         KEY(4, 3, GROUP_1 | KEY_4),
 180         KEY(4, 4, GROUP_1 | KEY_5),
 181         KEY(4, 5, GROUP_1 | KEY_KPASTERISK),/* "*" */
 182         KEY(1, 4, GROUP_1 | KEY_6),
 183         KEY(1, 5, GROUP_1 | KEY_7),
 184         KEY(1, 3, GROUP_1 | KEY_8),
 185         KEY(2, 3, GROUP_1 | KEY_9),
 186         KEY(2, 5, GROUP_1 | KEY_0),
 187         KEY(2, 4, GROUP_1 | 113), /* # F13 Toggle input method Qt::Key_F13 */
 188         KEY(1, 0, GROUP_1 | KEY_F11),   /* green button Qt::Key_Call */
 189         KEY(2, 1, GROUP_1 | KEY_YEN),   /* left soft Qt::Key_Context1 */
 190         KEY(2, 2, GROUP_1 | KEY_F8),    /* right soft Qt::Key_Back */
 191         KEY(1, 2, GROUP_1 | KEY_LEFTSHIFT), /* shift */
 192         KEY(1, 1, GROUP_1 | KEY_BACKSPACE), /* C (clear) */
 193         KEY(2, 0, GROUP_1 | KEY_F7),    /* menu Qt::Key_Menu */
 194 };
 195 
 196 static struct resource sx1_kp_resources[] = {
 197         [0] = {
 198                 .start  = INT_KEYBOARD,
 199                 .end    = INT_KEYBOARD,
 200                 .flags  = IORESOURCE_IRQ,
 201         },
 202 };
 203 
 204 static const struct matrix_keymap_data sx1_keymap_data = {
 205         .keymap         = sx1_keymap,
 206         .keymap_size    = ARRAY_SIZE(sx1_keymap),
 207 };
 208 
 209 static struct omap_kp_platform_data sx1_kp_data = {
 210         .rows           = 6,
 211         .cols           = 6,
 212         .keymap_data    = &sx1_keymap_data,
 213         .delay  = 80,
 214 };
 215 
 216 static struct platform_device sx1_kp_device = {
 217         .name           = "omap-keypad",
 218         .id             = -1,
 219         .dev            = {
 220                 .platform_data = &sx1_kp_data,
 221         },
 222         .num_resources  = ARRAY_SIZE(sx1_kp_resources),
 223         .resource       = sx1_kp_resources,
 224 };
 225 
 226 /*----------- MTD -------------------------*/
 227 
 228 static struct mtd_partition sx1_partitions[] = {
 229         /* bootloader (U-Boot, etc) in first sector */
 230         {
 231                 .name           = "bootloader",
 232                 .offset         = 0x01800000,
 233                 .size           = SZ_128K,
 234                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
 235         },
 236         /* bootloader params in the next sector */
 237         {
 238                 .name           = "params",
 239                 .offset         = MTDPART_OFS_APPEND,
 240                 .size           = SZ_128K,
 241                 .mask_flags     = 0,
 242         },
 243         /* kernel */
 244         {
 245                 .name           = "kernel",
 246                 .offset         = MTDPART_OFS_APPEND,
 247                 .size           = SZ_2M - 2 * SZ_128K,
 248                 .mask_flags     = 0
 249         },
 250         /* file system */
 251         {
 252                 .name           = "filesystem",
 253                 .offset         = MTDPART_OFS_APPEND,
 254                 .size           = MTDPART_SIZ_FULL,
 255                 .mask_flags     = 0
 256         }
 257 };
 258 
 259 static struct physmap_flash_data sx1_flash_data = {
 260         .width          = 2,
 261         .set_vpp        = omap1_set_vpp,
 262         .parts          = sx1_partitions,
 263         .nr_parts       = ARRAY_SIZE(sx1_partitions),
 264 };
 265 
 266 /* MTD Intel 4000 flash - new flashes */
 267 static struct resource sx1_new_flash_resource = {
 268         .start          = OMAP_CS0_PHYS,
 269         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 270         .flags          = IORESOURCE_MEM,
 271 };
 272 
 273 static struct platform_device sx1_flash_device = {
 274         .name           = "physmap-flash",
 275         .id             = 0,
 276         .dev            = {
 277                 .platform_data  = &sx1_flash_data,
 278         },
 279         .num_resources  = 1,
 280         .resource       = &sx1_new_flash_resource,
 281 };
 282 
 283 /*----------- USB -------------------------*/
 284 
 285 static struct omap_usb_config sx1_usb_config __initdata = {
 286         .otg            = 0,
 287         .register_dev   = 1,
 288         .register_host  = 0,
 289         .hmc_mode       = 0,
 290         .pins[0]        = 2,
 291         .pins[1]        = 0,
 292         .pins[2]        = 0,
 293 };
 294 
 295 /*----------- LCD -------------------------*/
 296 
 297 static const struct omap_lcd_config sx1_lcd_config __initconst = {
 298         .ctrl_name      = "internal",
 299 };
 300 
 301 /*-----------------------------------------*/
 302 static struct platform_device *sx1_devices[] __initdata = {
 303         &sx1_flash_device,
 304         &sx1_kp_device,
 305 };
 306 
 307 /*-----------------------------------------*/
 308 
 309 static void __init omap_sx1_init(void)
 310 {
 311         /* mux pins for uarts */
 312         omap_cfg_reg(UART1_TX);
 313         omap_cfg_reg(UART1_RTS);
 314         omap_cfg_reg(UART2_TX);
 315         omap_cfg_reg(UART2_RTS);
 316         omap_cfg_reg(UART3_TX);
 317         omap_cfg_reg(UART3_RX);
 318 
 319         platform_add_devices(sx1_devices, ARRAY_SIZE(sx1_devices));
 320 
 321         omap_serial_init();
 322         omap_register_i2c_bus(1, 100, NULL, 0);
 323         omap1_usb_init(&sx1_usb_config);
 324         sx1_mmc_init();
 325 
 326         /* turn on USB power */
 327         /* sx1_setusbpower(1); can't do it here because i2c is not ready */
 328         gpio_request(1, "A_IRDA_OFF");
 329         gpio_request(11, "A_SWITCH");
 330         gpio_request(15, "A_USB_ON");
 331         gpio_direction_output(1, 1);    /*A_IRDA_OFF = 1 */
 332         gpio_direction_output(11, 0);   /*A_SWITCH = 0 */
 333         gpio_direction_output(15, 0);   /*A_USB_ON = 0 */
 334 
 335         omapfb_set_lcd_config(&sx1_lcd_config);
 336 }
 337 
 338 MACHINE_START(SX1, "OMAP310 based Siemens SX1")
 339         .atag_offset    = 0x100,
 340         .map_io         = omap15xx_map_io,
 341         .init_early     = omap1_init_early,
 342         .init_irq       = omap1_init_irq,
 343         .handle_irq     = omap1_handle_irq,
 344         .init_machine   = omap_sx1_init,
 345         .init_late      = omap1_init_late,
 346         .init_time      = omap1_timer_init,
 347         .restart        = omap1_restart,
 348 MACHINE_END