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 2f9d00a00135..9af031ad63b8 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();
 }