diff options
Diffstat (limited to 'arch/arm/mach-omap1/board-palmte.c')
| -rw-r--r-- | arch/arm/mach-omap1/board-palmte.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c index 2f9d00a0013..9af031ad63b 100644 --- a/arch/arm/mach-omap1/board-palmte.c +++ b/arch/arm/mach-omap1/board-palmte.c @@ -321,6 +321,116 @@ static struct tsc2102_config palmte_tsc2102_config = { .alsa_config = &palmte_alsa_config, }; +static struct omap_mcbsp_reg_cfg palmte_mcbsp1_regs = { + .spcr2 = FRST | GRST | XRST | XINTM(3), + .xcr2 = XDATDLY(1) | XFIG, + .xcr1 = XWDLEN1(OMAP_MCBSP_WORD_32), + .pcr0 = SCLKME | FSXP | CLKXP, +}; + +static struct omap_alsa_codec_config palmte_alsa_config = { + .name = "TSC2102 audio", + .mcbsp_regs_alsa = &palmte_mcbsp1_regs, + .codec_configure_dev = NULL, /* tsc2102_configure, */ + .codec_set_samplerate = NULL, /* tsc2102_set_samplerate, */ + .codec_clock_setup = NULL, /* tsc2102_clock_setup, */ + .codec_clock_on = NULL, /* tsc2102_clock_on, */ + .codec_clock_off = NULL, /* tsc2102_clock_off, */ + .get_default_samplerate = NULL, /* tsc2102_get_default_samplerate, */ +}; + +#ifdef CONFIG_APM +/* + * Values measured in 10 minute intervals averaged over 10 samples. + * May differ slightly from device to device but should be accurate + * enough to give basic idea of battery life left and trigger + * potential alerts. + */ +static const int palmte_battery_sample[] = { + 2194, 2157, 2138, 2120, + 2104, 2089, 2075, 2061, + 2048, 2038, 2026, 2016, + 2008, 1998, 1989, 1980, + 1970, 1958, 1945, 1928, + 1910, 1888, 1860, 1827, + 1791, 1751, 1709, 1656, +}; + +#define INTERVAL 10 +#define BATTERY_HIGH_TRESHOLD 66 +#define BATTERY_LOW_TRESHOLD 33 + +static void palmte_get_power_status(struct apm_power_info *info, int *battery) +{ + int charging, batt, hi, lo, mid; + + charging = !omap_get_gpio_datain(PALMTE_DC_GPIO); + batt = battery[0]; + if (charging) + batt -= 60; + + hi = ARRAY_SIZE(palmte_battery_sample); + lo = 0; + + info->battery_flag = 0; + info->units = APM_UNITS_MINS; + + if (batt > palmte_battery_sample[lo]) { + info->battery_life = 100; + info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample); + } else if (batt <= palmte_battery_sample[hi - 1]) { + info->battery_life = 0; + info->time = 0; + } else { + while (hi > lo + 1) { + mid = (hi + lo) >> 2; + if (batt <= palmte_battery_sample[mid]) + lo = mid; + else + hi = mid; + } + + mid = palmte_battery_sample[lo] - palmte_battery_sample[hi]; + hi = palmte_battery_sample[lo] - batt; + info->battery_life = 100 - (100 * lo + 100 * hi / mid) / + ARRAY_SIZE(palmte_battery_sample); + info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) - + lo) - INTERVAL * hi / mid; + } + + if (charging) { + info->ac_line_status = APM_AC_ONLINE; + info->battery_status = APM_BATTERY_STATUS_CHARGING; + info->battery_flag |= APM_BATTERY_FLAG_CHARGING; + } else { + info->ac_line_status = APM_AC_OFFLINE; + if (info->battery_life > BATTERY_HIGH_TRESHOLD) + info->battery_status = APM_BATTERY_STATUS_HIGH; + else if (info->battery_life > BATTERY_LOW_TRESHOLD) + info->battery_status = APM_BATTERY_STATUS_LOW; + else + info->battery_status = APM_BATTERY_STATUS_CRITICAL; + } + + if (info->battery_life > BATTERY_HIGH_TRESHOLD) + info->battery_flag |= APM_BATTERY_FLAG_HIGH; + else if (info->battery_life > BATTERY_LOW_TRESHOLD) + info->battery_flag |= APM_BATTERY_FLAG_LOW; + else + info->battery_flag |= APM_BATTERY_FLAG_CRITICAL; +} +#else +#define palmte_get_power_status NULL +#endif + +static struct tsc2102_config palmte_tsc2102_config = { + .use_internal = 0, + .monitor = TSC_BAT1 | TSC_AUX | TSC_TEMP, + .temp_at25c = { 2200, 2615 }, + .apm_report = palmte_get_power_status, + .alsa_config = &palmte_alsa_config, +}; + static struct omap_board_config_kernel palmte_config[] = { { OMAP_TAG_USB, &palmte_usb_config }, { OMAP_TAG_MMC, &palmte_mmc_config }, @@ -339,6 +449,17 @@ static struct spi_board_info palmte_spi_info[] __initdata = { }, }; +static struct spi_board_info palmte_spi_info[] __initdata = { + { + .modalias = "tsc2102", + .bus_num = 2, /* uWire (officially) */ + .chip_select = 0, /* As opposed to 3 */ + .irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO), + .platform_data = &palmte_tsc2102_config, + .max_speed_hz = 8000000, + }, +}; + /* Periodically check for changes on important input pins */ struct timer_list palmte_pin_timer; int prev_power, prev_headphones; @@ -418,6 +539,8 @@ static void __init omap_palmte_init(void) spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info)); + spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info)); + omap_serial_init(); palmte_gpio_setup(); } |