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-rw-r--r--drivers/input/keyboard/bf54x-keys.c2
-rw-r--r--drivers/input/mouse/bcm5974.c74
-rw-r--r--drivers/input/serio/i8042-x86ia64io.h2
-rw-r--r--drivers/input/touchscreen/Kconfig1
-rw-r--r--drivers/input/touchscreen/ads7846.c68
-rw-r--r--drivers/input/touchscreen/ucb1400_ts.c382
6 files changed, 248 insertions, 281 deletions
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index 6f227d3dbda..e348cfccc17 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -43,7 +43,7 @@
#include <linux/input.h>
#include <asm/portmux.h>
-#include <asm/mach/bf54x_keys.h>
+#include <mach/bf54x_keys.h>
#define DRV_NAME "bf54x-keys"
#define TIME_SCALE 100 /* 100 ns */
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 2ec921bf3c6..18f4d7f6ce6 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -63,7 +63,7 @@
}
/* table of devices that work with this driver */
-static const struct usb_device_id bcm5974_table [] = {
+static const struct usb_device_id bcm5974_table[] = {
/* MacbookAir1.1 */
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ANSI),
BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ISO),
@@ -105,7 +105,7 @@ struct tp_header {
/* trackpad finger structure */
struct tp_finger {
- __le16 origin; /* left/right origin? */
+ __le16 origin; /* zero when switching track finger */
__le16 abs_x; /* absolute x coodinate */
__le16 abs_y; /* absolute y coodinate */
__le16 rel_x; /* relative x coodinate */
@@ -159,6 +159,7 @@ struct bcm5974 {
struct bt_data *bt_data; /* button transferred data */
struct urb *tp_urb; /* trackpad usb request block */
struct tp_data *tp_data; /* trackpad transferred data */
+ int fingers; /* number of fingers on trackpad */
};
/* logical dimensions */
@@ -172,6 +173,10 @@ struct bcm5974 {
#define SN_WIDTH 100 /* width signal-to-noise ratio */
#define SN_COORD 250 /* coordinate signal-to-noise ratio */
+/* pressure thresholds */
+#define PRESSURE_LOW (2 * DIM_PRESSURE / SN_PRESSURE)
+#define PRESSURE_HIGH (3 * PRESSURE_LOW)
+
/* device constants */
static const struct bcm5974_config bcm5974_config_table[] = {
{
@@ -248,6 +253,7 @@ static void setup_events_to_report(struct input_dev *input_dev,
0, cfg->y.dim, cfg->y.fuzz, 0);
__set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
__set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
@@ -273,32 +279,66 @@ static int report_tp_state(struct bcm5974 *dev, int size)
const struct tp_finger *f = dev->tp_data->finger;
struct input_dev *input = dev->input;
const int fingers = (size - 26) / 28;
- int p = 0, w, x, y, n = 0;
+ int raw_p, raw_w, raw_x, raw_y;
+ int ptest = 0, origin = 0, nmin = 0, nmax = 0;
+ int abs_p = 0, abs_w = 0, abs_x = 0, abs_y = 0;
if (size < 26 || (size - 26) % 28 != 0)
return -EIO;
+ /* always track the first finger; when detached, start over */
if (fingers) {
- p = raw2int(f->force_major);
- w = raw2int(f->size_major);
- x = raw2int(f->abs_x);
- y = raw2int(f->abs_y);
- n = p > 0 ? fingers : 0;
+ raw_p = raw2int(f->force_major);
+ raw_w = raw2int(f->size_major);
+ raw_x = raw2int(f->abs_x);
+ raw_y = raw2int(f->abs_y);
dprintk(9,
- "bcm5974: p: %+05d w: %+05d x: %+05d y: %+05d n: %d\n",
- p, w, x, y, n);
+ "bcm5974: raw: p: %+05d w: %+05d x: %+05d y: %+05d\n",
+ raw_p, raw_w, raw_x, raw_y);
+
+ ptest = int2bound(&c->p, raw_p);
+ origin = raw2int(f->origin);
+ }
- input_report_abs(input, ABS_TOOL_WIDTH, int2bound(&c->w, w));
- input_report_abs(input, ABS_X, int2bound(&c->x, x - c->x.devmin));
- input_report_abs(input, ABS_Y, int2bound(&c->y, c->y.devmax - y));
+ /* while tracking finger still valid, count all fingers */
+ if (ptest > PRESSURE_LOW && origin) {
+ abs_p = ptest;
+ abs_w = int2bound(&c->w, raw_w);
+ abs_x = int2bound(&c->x, raw_x - c->x.devmin);
+ abs_y = int2bound(&c->y, c->y.devmax - raw_y);
+ for (; f != dev->tp_data->finger + fingers; f++) {
+ ptest = int2bound(&c->p, raw2int(f->force_major));
+ if (ptest > PRESSURE_LOW)
+ nmax++;
+ if (ptest > PRESSURE_HIGH)
+ nmin++;
+ }
}
- input_report_abs(input, ABS_PRESSURE, int2bound(&c->p, p));
+ if (dev->fingers < nmin)
+ dev->fingers = nmin;
+ if (dev->fingers > nmax)
+ dev->fingers = nmax;
+
+ input_report_key(input, BTN_TOUCH, dev->fingers > 0);
+ input_report_key(input, BTN_TOOL_FINGER, dev->fingers == 1);
+ input_report_key(input, BTN_TOOL_DOUBLETAP, dev->fingers == 2);
+ input_report_key(input, BTN_TOOL_TRIPLETAP, dev->fingers > 2);
- input_report_key(input, BTN_TOOL_FINGER, n == 1);
- input_report_key(input, BTN_TOOL_DOUBLETAP, n == 2);
- input_report_key(input, BTN_TOOL_TRIPLETAP, n > 2);
+ input_report_abs(input, ABS_PRESSURE, abs_p);
+ input_report_abs(input, ABS_TOOL_WIDTH, abs_w);
+
+ if (abs_p) {
+ input_report_abs(input, ABS_X, abs_x);
+ input_report_abs(input, ABS_Y, abs_y);
+
+ dprintk(8,
+ "bcm5974: abs: p: %+05d w: %+05d x: %+05d y: %+05d "
+ "nmin: %d nmax: %d n: %d\n",
+ abs_p, abs_w, abs_x, abs_y, nmin, nmax, dev->fingers);
+
+ }
input_sync(input);
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 3282b741e24..5aafe24984c 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -305,7 +305,7 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
.ident = "Lenovo 3000 n100",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
},
},
{
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 25287e80e23..6e1e8c624f9 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -220,6 +220,7 @@ config TOUCHSCREEN_ATMEL_TSADCC
config TOUCHSCREEN_UCB1400
tristate "Philips UCB1400 touchscreen"
select AC97_BUS
+ depends on UCB1400_CORE
help
This enables support for the Philips UCB1400 touchscreen interface.
The UCB1400 is an AC97 audio codec. The touchscreen interface
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index ce6f48c695f..8583c766d56 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -24,6 +24,7 @@
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
+#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <asm/irq.h>
@@ -116,6 +117,7 @@ struct ads7846 {
void *filter_data;
void (*filter_cleanup)(void *data);
int (*get_pendown_state)(void);
+ int gpio_pendown;
};
/* leave chip selected when we're done, for quicker re-select? */
@@ -491,6 +493,14 @@ static struct attribute_group ads784x_attr_group = {
/*--------------------------------------------------------------------------*/
+static int get_pendown_state(struct ads7846 *ts)
+{
+ if (ts->get_pendown_state)
+ return ts->get_pendown_state();
+
+ return !gpio_get_value(ts->gpio_pendown);
+}
+
/*
* PENIRQ only kicks the timer. The timer only reissues the SPI transfer,
* to retrieve touchscreen status.
@@ -550,7 +560,7 @@ static void ads7846_rx(void *ads)
*/
if (ts->penirq_recheck_delay_usecs) {
udelay(ts->penirq_recheck_delay_usecs);
- if (!ts->get_pendown_state())
+ if (!get_pendown_state(ts))
Rt = 0;
}
@@ -677,7 +687,7 @@ static enum hrtimer_restart ads7846_timer(struct hrtimer *handle)
spin_lock_irq(&ts->lock);
- if (unlikely(!ts->get_pendown_state() ||
+ if (unlikely(!get_pendown_state(ts) ||
device_suspended(&ts->spi->dev))) {
if (ts->pendown) {
struct input_dev *input = ts->input;
@@ -716,7 +726,7 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
unsigned long flags;
spin_lock_irqsave(&ts->lock, flags);
- if (likely(ts->get_pendown_state())) {
+ if (likely(get_pendown_state(ts))) {
if (!ts->irq_disabled) {
/* The ARM do_simple_IRQ() dispatcher doesn't act
* like the other dispatchers: it will report IRQs
@@ -806,6 +816,36 @@ static int ads7846_resume(struct spi_device *spi)
return 0;
}
+static int __devinit setup_pendown(struct spi_device *spi, struct ads7846 *ts)
+{
+ struct ads7846_platform_data *pdata = spi->dev.platform_data;
+ int err;
+
+ /* REVISIT when the irq can be triggered active-low, or if for some
+ * reason the touchscreen isn't hooked up, we don't need to access
+ * the pendown state.
+ */
+ if (!pdata->get_pendown_state && !gpio_is_valid(pdata->gpio_pendown)) {
+ dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
+ return -EINVAL;
+ }
+
+ if (pdata->get_pendown_state) {
+ ts->get_pendown_state = pdata->get_pendown_state;
+ return 0;
+ }
+
+ err = gpio_request(pdata->gpio_pendown, "ads7846_pendown");
+ if (err) {
+ dev_err(&spi->dev, "failed to request pendown GPIO%d\n",
+ pdata->gpio_pendown);
+ return err;
+ }
+
+ ts->gpio_pendown = pdata->gpio_pendown;
+ return 0;
+}
+
static int __devinit ads7846_probe(struct spi_device *spi)
{
struct ads7846 *ts;
@@ -833,15 +873,6 @@ static int __devinit ads7846_probe(struct spi_device *spi)
return -EINVAL;
}
- /* REVISIT when the irq can be triggered active-low, or if for some
- * reason the touchscreen isn't hooked up, we don't need to access
- * the pendown state.
- */
- if (pdata->get_pendown_state == NULL) {
- dev_dbg(&spi->dev, "no get_pendown_state function?\n");
- return -EINVAL;
- }
-
/* We'd set TX wordsize 8 bits and RX wordsize to 13 bits ... except
* that even if the hardware can do that, the SPI controller driver
* may not. So we stick to very-portable 8 bit words, both RX and TX.
@@ -893,7 +924,10 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ts->filter_data = ts;
} else
ts->filter = ads7846_no_filter;
- ts->get_pendown_state = pdata->get_pendown_state;
+
+ err = setup_pendown(spi, ts);
+ if (err)
+ goto err_cleanup_filter;
if (pdata->penirq_recheck_delay_usecs)
ts->penirq_recheck_delay_usecs =
@@ -1085,7 +1119,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
spi->dev.driver->name, ts)) {
dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
err = -EBUSY;
- goto err_cleanup_filter;
+ goto err_free_gpio;
}
err = ads784x_hwmon_register(spi, ts);
@@ -1116,6 +1150,9 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ads784x_hwmon_unregister(spi, ts);
err_free_irq:
free_irq(spi->irq, ts);
+ err_free_gpio:
+ if (ts->gpio_pendown != -1)
+ gpio_free(ts->gpio_pendown);
err_cleanup_filter:
if (ts->filter_cleanup)
ts->filter_cleanup(ts->filter_data);
@@ -1140,6 +1177,9 @@ static int __devexit ads7846_remove(struct spi_device *spi)
/* suspend left the IRQ disabled */
enable_irq(ts->spi->irq);
+ if (ts->gpio_pendown != -1)
+ gpio_free(ts->gpio_pendown);
+
if (ts->filter_cleanup)
ts->filter_cleanup(ts->filter_data);
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index bce018e45bc..54986627def 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -5,6 +5,10 @@
* Created: September 25, 2006
* Copyright: MontaVista Software, Inc.
*
+ * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
+ * If something doesnt work and it worked before spliting, e-mail me,
+ * dont bother Nicolas please ;-)
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
@@ -25,124 +29,16 @@
#include <linux/slab.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
-
-#include <sound/core.h>
-#include <sound/ac97_codec.h>
-
-
-/*
- * Interesting UCB1400 AC-link registers
- */
-
-#define UCB_IE_RIS 0x5e
-#define UCB_IE_FAL 0x60
-#define UCB_IE_STATUS 0x62
-#define UCB_IE_CLEAR 0x62
-#define UCB_IE_ADC (1 << 11)
-#define UCB_IE_TSPX (1 << 12)
-
-#define UCB_TS_CR 0x64
-#define UCB_TS_CR_TSMX_POW (1 << 0)
-#define UCB_TS_CR_TSPX_POW (1 << 1)
-#define UCB_TS_CR_TSMY_POW (1 << 2)
-#define UCB_TS_CR_TSPY_POW (1 << 3)
-#define UCB_TS_CR_TSMX_GND (1 << 4)
-#define UCB_TS_CR_TSPX_GND (1 << 5)
-#define UCB_TS_CR_TSMY_GND (1 << 6)
-#define UCB_TS_CR_TSPY_GND (1 << 7)
-#define UCB_TS_CR_MODE_INT (0 << 8)
-#define UCB_TS_CR_MODE_PRES (1 << 8)
-#define UCB_TS_CR_MODE_POS (2 << 8)
-#define UCB_TS_CR_BIAS_ENA (1 << 11)
-#define UCB_TS_CR_TSPX_LOW (1 << 12)
-#define UCB_TS_CR_TSMX_LOW (1 << 13)
-
-#define UCB_ADC_CR 0x66
-#define UCB_ADC_SYNC_ENA (1 << 0)
-#define UCB_ADC_VREFBYP_CON (1 << 1)
-#define UCB_ADC_INP_TSPX (0 << 2)
-#define UCB_ADC_INP_TSMX (1 << 2)
-#define UCB_ADC_INP_TSPY (2 << 2)
-#define UCB_ADC_INP_TSMY (3 << 2)
-#define UCB_ADC_INP_AD0 (4 << 2)
-#define UCB_ADC_INP_AD1 (5 << 2)
-#define UCB_ADC_INP_AD2 (6 << 2)
-#define UCB_ADC_INP_AD3 (7 << 2)
-#define UCB_ADC_EXT_REF (1 << 5)
-#define UCB_ADC_START (1 << 7)
-#define UCB_ADC_ENA (1 << 15)
-
-#define UCB_ADC_DATA 0x68
-#define UCB_ADC_DAT_VALID (1 << 15)
-#define UCB_ADC_DAT_VALUE(x) ((x) & 0x3ff)
-
-#define UCB_ID 0x7e
-#define UCB_ID_1400 0x4304
-
-
-struct ucb1400 {
- struct snd_ac97 *ac97;
- struct input_dev *ts_idev;
-
- int irq;
-
- wait_queue_head_t ts_wait;
- struct task_struct *ts_task;
-
- unsigned int irq_pending; /* not bit field shared */
- unsigned int ts_restart:1;
- unsigned int adcsync:1;
-};
+#include <linux/ucb1400.h>
static int adcsync;
static int ts_delay = 55; /* us */
static int ts_delay_pressure; /* us */
-static inline u16 ucb1400_reg_read(struct ucb1400 *ucb, u16 reg)
-{
- return ucb->ac97->bus->ops->read(ucb->ac97, reg);
-}
-
-static inline void ucb1400_reg_write(struct ucb1400 *ucb, u16 reg, u16 val)
-{
- ucb->ac97->bus->ops->write(ucb->ac97, reg, val);
-}
-
-static inline void ucb1400_adc_enable(struct ucb1400 *ucb)
-{
- ucb1400_reg_write(ucb, UCB_ADC_CR, UCB_ADC_ENA);
-}
-
-static unsigned int ucb1400_adc_read(struct ucb1400 *ucb, u16 adc_channel)
-{
- unsigned int val;
-
- if (ucb->adcsync)
- adc_channel |= UCB_ADC_SYNC_ENA;
-
- ucb1400_reg_write(ucb, UCB_ADC_CR, UCB_ADC_ENA | adc_channel);
- ucb1400_reg_write(ucb, UCB_ADC_CR, UCB_ADC_ENA | adc_channel | UCB_ADC_START);
-
- for (;;) {
- val = ucb1400_reg_read(ucb, UCB_ADC_DATA);
- if (val & UCB_ADC_DAT_VALID)
- break;
- /* yield to other processes */
- schedule_timeout_uninterruptible(1);
- }
-
- return UCB_ADC_DAT_VALUE(val);
-}
-
-static inline void ucb1400_adc_disable(struct ucb1400 *ucb)
-{
- ucb1400_reg_write(ucb, UCB_ADC_CR, 0);
-}
-
/* Switch to interrupt mode. */
-static inline void ucb1400_ts_mode_int(struct ucb1400 *ucb)
+static inline void ucb1400_ts_mode_int(struct snd_ac97 *ac97)
{
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
UCB_TS_CR_MODE_INT);
@@ -152,14 +48,14 @@ static inline void ucb1400_ts_mode_int(struct ucb1400 *ucb)
* Switch to pressure mode, and read pressure. We don't need to wait
* here, since both plates are being driven.
*/
-static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400 *ucb)
+static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
udelay(ts_delay_pressure);
- return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPY);
+ return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
}
/*
@@ -168,21 +64,21 @@ static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400 *ucb)
* gives a faster response time. Even so, we need to wait about 55us
* for things to stabilise.
*/
-static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400 *ucb)
+static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
udelay(ts_delay);
- return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPY);
+ return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
}
/*
@@ -191,63 +87,63 @@ static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400 *ucb)
* gives a faster response time. Even so, we need to wait about 55us
* for things to stabilise.
*/
-static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400 *ucb)
+static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
udelay(ts_delay);
- return ucb1400_adc_read(ucb, UCB_ADC_INP_TSPX);
+ return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPX, adcsync);
}
/*
* Switch to X plate resistance mode. Set MX to ground, PX to
* supply. Measure current.
*/
-static inline unsigned int ucb1400_ts_read_xres(struct ucb1400 *ucb)
+static inline unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- return ucb1400_adc_read(ucb, 0);
+ return ucb1400_adc_read(ucb->ac97, 0, adcsync);
}
/*
* Switch to Y plate resistance mode. Set MY to ground, PY to
* supply. Measure current.
*/
-static inline unsigned int ucb1400_ts_read_yres(struct ucb1400 *ucb)
+static inline unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
{
- ucb1400_reg_write(ucb, UCB_TS_CR,
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- return ucb1400_adc_read(ucb, 0);
+ return ucb1400_adc_read(ucb->ac97, 0, adcsync);
}
-static inline int ucb1400_ts_pen_down(struct ucb1400 *ucb)
+static inline int ucb1400_ts_pen_down(struct snd_ac97 *ac97)
{
- unsigned short val = ucb1400_reg_read(ucb, UCB_TS_CR);
- return (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW));
+ unsigned short val = ucb1400_reg_read(ac97, UCB_TS_CR);
+ return val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW);
}
-static inline void ucb1400_ts_irq_enable(struct ucb1400 *ucb)
+static inline void ucb1400_ts_irq_enable(struct snd_ac97 *ac97)
{
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, UCB_IE_TSPX);
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, 0);
- ucb1400_reg_write(ucb, UCB_IE_FAL, UCB_IE_TSPX);
+ ucb1400_reg_write(ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
+ ucb1400_reg_write(ac97, UCB_IE_CLEAR, 0);
+ ucb1400_reg_write(ac97, UCB_IE_FAL, UCB_IE_TSPX);
}
-static inline void ucb1400_ts_irq_disable(struct ucb1400 *ucb)
+static inline void ucb1400_ts_irq_disable(struct snd_ac97 *ac97)
{
- ucb1400_reg_write(ucb, UCB_IE_FAL, 0);
+ ucb1400_reg_write(ac97, UCB_IE_FAL, 0);
}
static void ucb1400_ts_evt_add(struct input_dev *idev, u16 pressure, u16 x, u16 y)
@@ -264,25 +160,24 @@ static void ucb1400_ts_event_release(struct input_dev *idev)
input_sync(idev);
}
-static void ucb1400_handle_pending_irq(struct ucb1400 *ucb)
+static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
{
unsigned int isr;
- isr = ucb1400_reg_read(ucb, UCB_IE_STATUS);
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, isr);
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, 0);
+ isr = ucb1400_reg_read(ucb->ac97, UCB_IE_STATUS);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
- if (isr & UCB_IE_TSPX)
- ucb1400_ts_irq_disable(ucb);
- else
+ if (isr & UCB_IE_TSPX) {
+ ucb1400_ts_irq_disable(ucb->ac97);
+ enable_irq(ucb->irq);
+ } else
printk(KERN_ERR "ucb1400: unexpected IE_STATUS = %#x\n", isr);
-
- enable_irq(ucb->irq);
}
static int ucb1400_ts_thread(void *_ucb)
{
- struct ucb1400 *ucb = _ucb;
+ struct ucb1400_ts *ucb = _ucb;
struct task_struct *tsk = current;
int valid = 0;
struct sched_param param = { .sched_priority = 1 };
@@ -301,19 +196,19 @@ static int ucb1400_ts_thread(void *_ucb)
ucb1400_handle_pending_irq(ucb);
}
- ucb1400_adc_enable(ucb);
+ ucb1400_adc_enable(ucb->ac97);
x = ucb1400_ts_read_xpos(ucb);
y = ucb1400_ts_read_ypos(ucb);
p = ucb1400_ts_read_pressure(ucb);
- ucb1400_adc_disable(ucb);
+ ucb1400_adc_disable(ucb->ac97);
/* Switch back to interrupt mode. */
- ucb1400_ts_mode_int(ucb);
+ ucb1400_ts_mode_int(ucb->ac97);
msleep(10);
- if (ucb1400_ts_pen_down(ucb)) {
- ucb1400_ts_irq_enable(ucb);
+ if (ucb1400_ts_pen_down(ucb->ac97)) {
+ ucb1400_ts_irq_enable(ucb->ac97);
/*
* If we spat out a valid sample set last time,
@@ -332,8 +227,8 @@ static int ucb1400_ts_thread(void *_ucb)
}
wait_event_freezable_timeout(ucb->ts_wait,
- ucb->irq_pending || ucb->ts_restart || kthread_should_stop(),
- timeout);
+ ucb->irq_pending || ucb->ts_restart ||
+ kthread_should_stop(), timeout);
}
/* Send the "pen off" if we are stopping with the pen still active */
@@ -356,7 +251,7 @@ static int ucb1400_ts_thread(void *_ucb)
*/
static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid)
{
- struct ucb1400 *ucb = devid;
+ struct ucb1400_ts *ucb = devid;
if (irqnr == ucb->irq) {
disable_irq(ucb->irq);
@@ -369,7 +264,7 @@ static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid)
static int ucb1400_ts_open(struct input_dev *idev)
{
- struct ucb1400 *ucb = input_get_drvdata(idev);
+ struct ucb1400_ts *ucb = input_get_drvdata(idev);
int ret = 0;
BUG_ON(ucb->ts_task);
@@ -385,34 +280,14 @@ static int ucb1400_ts_open(struct input_dev *idev)
static void ucb1400_ts_close(struct input_dev *idev)
{
- struct ucb1400 *ucb = input_get_drvdata(idev);
+ struct ucb1400_ts *ucb = input_get_drvdata(idev);
if (ucb->ts_task)
kthread_stop(ucb->ts_task);
- ucb1400_ts_irq_disable(ucb);
- ucb1400_reg_write(ucb, UCB_TS_CR, 0);
-}
-
-#ifdef CONFIG_PM
-static int ucb1400_ts_resume(struct device *dev)
-{
- struct ucb1400 *ucb = dev_get_drvdata(dev);
-
- if (ucb->ts_task) {
- /*
- * Restart the TS thread to ensure the
- * TS interrupt mode is set up again
- * after sleep.
- */
- ucb->ts_restart = 1;
- wake_up(&ucb->ts_wait);
- }
- return 0;
+ ucb1400_ts_irq_disable(ucb->ac97);
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
}
-#else
-#define ucb1400_ts_resume NULL
-#endif
#ifndef NO_IRQ
#define NO_IRQ 0
@@ -422,25 +297,26 @@ static int ucb1400_ts_resume(struct device *dev)
* Try to probe our interrupt, rather than relying on lots of
* hard-coded machine dependencies.
*/
-static int ucb1400_detect_irq(struct ucb1400 *ucb)
+static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
{
unsigned long mask, timeout;
mask = probe_irq_on();
/* Enable the ADC interrupt. */
- ucb1400_reg_write(ucb, UCB_IE_RIS, UCB_IE_ADC);
- ucb1400_reg_write(ucb, UCB_IE_FAL, UCB_IE_ADC);
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, 0xffff);
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, UCB_IE_ADC);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_ADC);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
/* Cause an ADC interrupt. */
- ucb1400_reg_write(ucb, UCB_ADC_CR, UCB_ADC_ENA);
- ucb1400_reg_write(ucb, UCB_ADC_CR, UCB_ADC_ENA | UCB_ADC_START);
+ ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA);
+ ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA | UCB_ADC_START);
/* Wait for the conversion to complete. */
timeout = jiffies + HZ/2;
- while (!(ucb1400_reg_read(ucb, UCB_ADC_DATA) & UCB_ADC_DAT_VALID)) {
+ while (!(ucb1400_reg_read(ucb->ac97, UCB_ADC_DATA) &
+ UCB_ADC_DAT_VALID)) {
cpu_relax();
if (time_after(jiffies, timeout)) {
printk(KERN_ERR "ucb1400: timed out in IRQ probe\n");
@@ -448,13 +324,13 @@ static int ucb1400_detect_irq(struct ucb1400 *ucb)
return -ENODEV;
}
}
- ucb1400_reg_write(ucb, UCB_ADC_CR, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, 0);
/* Disable and clear interrupt. */
- ucb1400_reg_write(ucb, UCB_IE_RIS, 0);
- ucb1400_reg_write(ucb, UCB_IE_FAL, 0);
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, 0xffff);
- ucb1400_reg_write(ucb, UCB_IE_CLEAR, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
/* Read triggered interrupt. */
ucb->irq = probe_irq_off(mask);
@@ -464,36 +340,25 @@ static int ucb1400_detect_irq(struct ucb1400 *ucb)
return 0;
}
-static int ucb1400_ts_probe(struct device *dev)
+static int ucb1400_ts_probe(struct platform_device *dev)
{
- struct ucb1400 *ucb;
- struct input_dev *idev;
- int error, id, x_res, y_res;
+ int error, x_res, y_res;
+ struct ucb1400_ts *ucb = dev->dev.platform_data;
- ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
- idev = input_allocate_device();
- if (!ucb || !idev) {
+ ucb->ts_idev = input_allocate_device();
+ if (!ucb->ts_idev) {
error = -ENOMEM;
- goto err_free_devs;
+ goto err;
}
- ucb->ts_idev = idev;
- ucb->adcsync = adcsync;
- ucb->ac97 = to_ac97_t(dev);
- init_waitqueue_head(&ucb->ts_wait);
-
- id = ucb1400_reg_read(ucb, UCB_ID);
- if (id != UCB_ID_1400) {
- error = -ENODEV;
- goto err_free_devs;
- }
-
- error = ucb1400_detect_irq(ucb);
+ error = ucb1400_ts_detect_irq(ucb);
if (error) {
printk(KERN_ERR "UCB1400: IRQ probe failed\n");
goto err_free_devs;
}
+ init_waitqueue_head(&ucb->ts_wait);
+
error = request_irq(ucb->irq, ucb1400_hard_irq, IRQF_TRIGGER_RISING,
"UCB1400", ucb);
if (error) {
@@ -503,80 +368,101 @@ static int ucb1400_ts_probe(struct device *dev)
}
printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);
- input_set_drvdata(idev, ucb);
+ input_set_drvdata(ucb->ts_idev, ucb);
- idev->dev.parent = dev;
- idev->name = "UCB1400 touchscreen interface";
- idev->id.vendor = ucb1400_reg_read(ucb, AC97_VENDOR_ID1);
- idev->id.product = id;
- idev->open = ucb1400_ts_open;
- idev->close = ucb1400_ts_close;
- idev->evbit[0] = BIT_MASK(EV_ABS);
+ ucb->ts_idev->dev.parent = &dev->dev;
+ ucb->ts_idev->name = "UCB1400 touchscreen interface";
+ ucb->ts_idev->id.vendor = ucb1400_reg_read(ucb->ac97,
+ AC97_VENDOR_ID1);
+ ucb->ts_idev->id.product = ucb->id;
+ ucb->ts_idev->open = ucb1400_ts_open;
+ ucb->ts_idev->close = ucb1400_ts_close;
+ ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS);
- ucb1400_adc_enable(ucb);
+ ucb1400_adc_enable(ucb->ac97);
x_res = ucb1400_ts_read_xres(ucb);
y_res = ucb1400_ts_read_yres(ucb);
- ucb1400_adc_disable(ucb);
+ ucb1400_adc_disable(ucb->ac97);
printk(KERN_DEBUG "UCB1400: x/y = %d/%d\n", x_res, y_res);
- input_set_abs_params(idev, ABS_X, 0, x_res, 0, 0);
- input_set_abs_params(idev, ABS_Y, 0, y_res, 0, 0);
- input_set_abs_params(idev, ABS_PRESSURE, 0, 0, 0, 0);
+ input_set_abs_params(ucb->ts_idev, ABS_X, 0, x_res, 0, 0);
+ input_set_abs_params(ucb->ts_idev, ABS_Y, 0, y_res, 0, 0);
+ input_set_abs_params(ucb->ts_idev, ABS_PRESSURE, 0, 0, 0, 0);
- error = input_register_device(idev);
+ error = input_register_device(ucb->ts_idev);
if (error)
goto err_free_irq;
- dev_set_drvdata(dev, ucb);
return 0;
- err_free_irq:
+err_free_irq:
free_irq(ucb->irq, ucb);
- err_free_devs:
- input_free_device(idev);
- kfree(ucb);
+err_free_devs:
+ input_free_device(ucb->ts_idev);
+err:
return error;
+
}
-static int ucb1400_ts_remove(struct device *dev)
+static int ucb1400_ts_remove(struct platform_device *dev)
{
- struct ucb1400 *ucb = dev_get_drvdata(dev);
+ struct ucb1400_ts *ucb = dev->dev.platform_data;
free_irq(ucb->irq, ucb);
input_unregister_device(ucb->ts_idev);
- dev_set_drvdata(dev, NULL);
- kfree(ucb);
return 0;
}
-static struct device_driver ucb1400_ts_driver = {
- .name = "ucb1400_ts",
- .owner = THIS_MODULE,
- .bus = &ac97_bus_type,
- .probe = ucb1400_ts_probe,
- .remove = ucb1400_ts_remove,
- .resume = ucb1400_ts_resume,
+#ifdef CONFIG_PM
+static int ucb1400_ts_resume(struct platform_device *dev)
+{
+ struct ucb1400_ts *ucb = platform_get_drvdata(dev);
+
+ if (ucb->ts_task) {
+ /*
+ * Restart the TS thread to ensure the
+ * TS interrupt mode is set up again
+ * after sleep.
+ */
+ ucb->ts_restart = 1;
+ wake_up(&ucb->ts_wait);
+ }
+ return 0;
+}
+#else
+#define ucb1400_ts_resume NULL
+#endif
+
+static struct platform_driver ucb1400_ts_driver = {
+ .probe = ucb1400_ts_probe,
+ .remove = ucb1400_ts_remove,
+ .resume = ucb1400_ts_resume,
+ .driver = {
+ .name = "ucb1400_ts",
+ },
};
static int __init ucb1400_ts_init(void)
{
- return driver_register(&ucb1400_ts_driver);
+ return platform_driver_register(&ucb1400_ts_driver);
}
static void __exit ucb1400_ts_exit(void)
{
- driver_unregister(&ucb1400_ts_driver);
+ platform_driver_unregister(&ucb1400_ts_driver);
}
module_param(adcsync, bool, 0444);
MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
module_param(ts_delay, int, 0444);
-MODULE_PARM_DESC(ts_delay, "Delay between panel setup and position read. Default = 55us.");
+MODULE_PARM_DESC(ts_delay, "Delay between panel setup and"
+ " position read. Default = 55us.");
module_param(ts_delay_pressure, int, 0444);
MODULE_PARM_DESC(ts_delay_pressure,
- "delay between panel setup and pressure read. Default = 0us.");
+ "delay between panel setup and pressure read."
+ " Default = 0us.");
module_init(ucb1400_ts_init);
module_exit(ucb1400_ts_exit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 06:52:17 +0000