[rtems-libbsd commit] Add LPC32XX touch screen driver
Sebastian Huber
sebh at rtems.org
Fri May 19 07:28:03 UTC 2017
Module: rtems-libbsd
Branch: master
Commit: e28a8d01c1df58565b7c826aea4413fe75ee99ce
Changeset: http://git.rtems.org/rtems-libbsd/commit/?id=e28a8d01c1df58565b7c826aea4413fe75ee99ce
Author: Kevin Kirspel <kevin-kirspel at idexx.com>
Date: Wed May 17 08:40:33 2017 -0400
Add LPC32XX touch screen driver
---
rtemsbsd/include/bsp/nexus-devices.h | 1 +
rtemsbsd/include/machine/rtems-bsd-nexus-bus.h | 22 ++
rtemsbsd/sys/dev/input/touchscreen/tsc_lpc32xx.c | 421 +++++++++++++++++++++++
3 files changed, 444 insertions(+)
diff --git a/rtemsbsd/include/bsp/nexus-devices.h b/rtemsbsd/include/bsp/nexus-devices.h
old mode 100755
new mode 100644
index cfd6730..1fbf756
--- a/rtemsbsd/include/bsp/nexus-devices.h
+++ b/rtemsbsd/include/bsp/nexus-devices.h
@@ -52,6 +52,7 @@ RTEMS_BSD_DRIVER_SMC0(0x4e000000, RVPBXA9_IRQ_ETHERNET);
RTEMS_BSD_DRIVER_LPC32XX_PWR;
RTEMS_BSD_DRIVER_LPC32XX_LPE;
+RTEMS_BSD_DRIVER_LPC32XX_TSC;
RTEMS_BSD_DRIVER_ICSPHY;
RTEMS_BSD_DRIVER_LPC32XX_OHCI;
SYSINIT_DRIVER_REFERENCE(usbus, ohci);
diff --git a/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h b/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h
old mode 100755
new mode 100644
index 232e8e2..06048b7
--- a/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h
+++ b/rtemsbsd/include/machine/rtems-bsd-nexus-bus.h
@@ -39,6 +39,7 @@
* Devices:
* RTEMS_BSD_DRIVER_XILINX_ZYNQ_SLCR
* RTEMS_BSD_DRIVER_LPC32XX_PWR
+ * RTEMS_BSD_DRIVER_LPC32XX_TSC
*
* Buses:
* RTEMS_BSD_DRIVER_PC_LEGACY
@@ -136,6 +137,27 @@ extern "C" {
&lpc_pwr0_res[0])
#endif /* RTEMS_BSD_DRIVER_LPC32XX_PWR */
+/*
+ * LPC32XX TSC.
+ */
+#if !defined(RTEMS_BSD_DRIVER_LPC32XX_TSC)
+ #define RTEMS_BSD_DRIVER_LPC32XX_TSC \
+ static const rtems_bsd_device_resource lpc_tsc0_res[] = { \
+ { \
+ .type = RTEMS_BSD_RES_MEMORY, \
+ .start_request = 0, \
+ .start_actual = LPC32XX_BASE_ADC \
+ }, { \
+ .type = RTEMS_BSD_RES_IRQ, \
+ .start_request = 0, \
+ .start_actual = LPC32XX_IRQ_TS_IRQ_OR_ADC \
+ } \
+ }; \
+ RTEMS_BSD_DEFINE_NEXUS_DEVICE(lpctsc, 0, \
+ RTEMS_ARRAY_SIZE(lpc_tsc0_res), \
+ &lpc_tsc0_res[0])
+#endif /* RTEMS_BSD_DRIVER_LPC32XX_TSC */
+
/**
** Physical Buses
**/
diff --git a/rtemsbsd/sys/dev/input/touchscreen/tsc_lpc32xx.c b/rtemsbsd/sys/dev/input/touchscreen/tsc_lpc32xx.c
new file mode 100644
index 0000000..32a9cb5
--- /dev/null
+++ b/rtemsbsd/sys/dev/input/touchscreen/tsc_lpc32xx.c
@@ -0,0 +1,421 @@
+/*-
+ * COPYRIGHT (c) 2017 Kevin Kirspel
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/rtems-bsd-kernel-space.h>
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <rtems/bsd/local/opt_evdev.h>
+
+#include <rtems/bsd/sys/param.h>
+#include <sys/systm.h>
+#include <sys/rman.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <rtems/bsd/sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/condvar.h>
+#include <sys/sysctl.h>
+#include <sys/selinfo.h>
+#include <sys/poll.h>
+#include <sys/uio.h>
+#include <sys/conf.h>
+
+#include <dev/evdev/input.h>
+#include <dev/evdev/evdev.h>
+
+#include <machine/bus.h>
+
+#include <bsp.h>
+#if defined(LIBBSP_ARM_LPC32XX_BSP_H) && defined(EVDEV_SUPPORT)
+
+#include <arm/lpc/lpcreg.h>
+#include <arm/lpc/lpcvar.h>
+
+//#define LPC32XX_TSC_USE_PCLK
+/*
+ * Touchscreen controller register offsets
+ */
+#define LPC32XX_TSC_STAT 0x00
+#define LPC32XX_TSC_SEL 0x04
+#define LPC32XX_TSC_CON 0x08
+#define LPC32XX_TSC_FIFO 0x0C
+#define LPC32XX_TSC_DTR 0x10
+#define LPC32XX_TSC_RTR 0x14
+#define LPC32XX_TSC_UTR 0x18
+#define LPC32XX_TSC_TTR 0x1C
+#define LPC32XX_TSC_DXP 0x20
+#define LPC32XX_TSC_MIN_X 0x24
+#define LPC32XX_TSC_MAX_X 0x28
+#define LPC32XX_TSC_MIN_Y 0x2C
+#define LPC32XX_TSC_MAX_Y 0x30
+#define LPC32XX_TSC_AUX_UTR 0x34
+#define LPC32XX_TSC_AUX_MIN 0x38
+#define LPC32XX_TSC_AUX_MAX 0x3C
+
+#define LPC32XX_CLKPWR_ADCCTRL1_PCLK_SEL (1 << 8)
+#define LPC32XX_CLKPWR_ADCCTRL1_RTDIV(n) (((n) & 0xFF) << 0)
+#define LPC32XX_TSC_CLK 400000UL
+
+#define LPC32XX_TSC_STAT_FIFO_OVRRN (1 << 8)
+#define LPC32XX_TSC_STAT_FIFO_EMPTY (1 << 7)
+
+#define LPC32XX_TSC_SEL_DEFVAL 0x0284
+
+#define LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 (0x1 << 11)
+#define LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(s) ((10 - (s)) << 7)
+#define LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(s) ((10 - (s)) << 4)
+#define LPC32XX_TSC_ADCCON_POWER_UP (1 << 2)
+#define LPC32XX_TSC_ADCCON_AUTO_EN (1 << 0)
+
+#define LPC32XX_TSC_FIFO_TS_P_LEVEL (1 << 31)
+#define LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(x) (((x) & 0x03FF0000) >> 16)
+#define LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(y) ((y) & 0x000003FF)
+
+#define LPC32XX_TSC_ADCDAT_VALUE_MASK 0x000003FF
+
+#define LPC32XX_TSC_MIN_XY_VAL 0x0
+#define LPC32XX_TSC_MAX_XY_VAL 0x3FF
+
+#define LPC_TSC_LOCK(_sc) \
+ mtx_lock(&(_sc)->sc_mtx)
+#define LPC_TSC_UNLOCK(_sc) \
+ mtx_unlock(&(_sc)->sc_mtx)
+#define LPC_TSC_LOCK_INIT(_sc) \
+ mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), \
+ "lpctsc", MTX_DEF)
+#define LPC_TSC_LOCK_DESTROY(_sc) \
+ mtx_destroy(&_sc->sc_mtx);
+#define LPC_TSC_LOCK_ASSERT(_sc) \
+ mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
+
+#define TSCBARR(sc) bus_space_barrier((sc)->sc_io_tag, (sc)->sc_io_hdl, 0, (sc)->sc_io_size, \
+ BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE)
+#define TSCWRITE1(sc, r, x) \
+ do { TSCBARR(sc); bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); } while (0)
+#define TSCWRITE2(sc, r, x) \
+ do { TSCBARR(sc); bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); } while (0)
+#define TSCWRITE4(sc, r, x) \
+ do { TSCBARR(sc); bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); } while (0)
+#define TSCREAD1(sc, r) (TSCBARR(sc), bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
+#define TSCREAD2(sc, r) (TSCBARR(sc), bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
+#define TSCREAD4(sc, r) (TSCBARR(sc), bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
+
+struct lpc_tsc_softc {
+ device_t sc_dev;
+ struct mtx sc_mtx;
+ struct resource *sc_io_res;
+ struct resource *sc_irq_res;
+ void *sc_intr_hdl;
+ bus_space_tag_t sc_io_tag;
+ bus_space_handle_t sc_io_hdl;
+ bus_size_t sc_io_size;
+ struct evdev_dev *sc_evdev;
+};
+
+static evdev_open_t lpc_tsc_ev_open;
+static evdev_close_t lpc_tsc_ev_close;
+
+static const struct evdev_methods lpc_tsc_evdev_methods = {
+ .ev_open = &lpc_tsc_ev_open,
+ .ev_close = &lpc_tsc_ev_close,
+};
+
+static void
+lpc_adc_module_enable(struct lpc_tsc_softc *sc)
+{
+ uint32_t pclk, divider;
+
+ lpc_pwr_write(sc->sc_dev, LPC_CLKPWR_ADCLK_CTRL, 1);
+#ifdef LPC32XX_TSC_USE_PCLK
+ /* Get the clock frequency for the peripheral clock*/
+ pclk = LPC32XX_PERIPH_CLK;
+ /* compute the divider needed to ensure we are at or below 400KHz ADC Sampling rate*/
+ divider = ( pclk / LPC32XX_TSC_CLK ) + 1;
+ lpc_pwr_write(sc->sc_dev, LPC_CLKPWR_ADCLK_CTRL1,
+ LPC32XX_CLKPWR_ADCCTRL1_PCLK_SEL |
+ LPC32XX_CLKPWR_ADCCTRL1_RTDIV(divider));
+#else
+ lpc_pwr_write(sc->sc_dev, LPC_CLKPWR_ADCLK_CTRL1, 0);
+#endif
+}
+
+static void
+lpc_adc_module_disable(struct lpc_tsc_softc *sc)
+{
+ lpc_pwr_write(sc->sc_dev, LPC_CLKPWR_ADCLK_CTRL, 0);
+}
+
+static void
+lpc_adc_fifo_clear(struct lpc_tsc_softc *sc)
+{
+ uint32_t tmp;
+
+ while(!(TSCREAD4(sc, LPC32XX_TSC_STAT) & LPC32XX_TSC_STAT_FIFO_EMPTY)) {
+ tmp = TSCREAD4(sc, LPC32XX_TSC_FIFO);
+ }
+}
+
+static void
+lpc_tsc_interrupt(void *arg)
+{
+ struct lpc_tsc_softc *sc = (struct lpc_tsc_softc *)arg;
+ uint32_t tmp, rv[4], xs[4], ys[4];
+ int idx;
+ int id, i, x, y;
+
+ LPC_TSC_LOCK(sc);
+
+ tmp = TSCREAD4(sc, LPC32XX_TSC_STAT);
+ if(tmp & LPC32XX_TSC_STAT_FIFO_OVRRN) {
+ lpc_adc_fifo_clear(sc);
+ LPC_TSC_UNLOCK(sc);
+ return;
+ }
+
+ /*
+ * Gather and normalize 4 samples. Pen-up events may have less
+ * than 4 samples, but its ok to pop 4 and let the last sample
+ * pen status check drop the samples.
+ */
+ idx = 0;
+ while((idx < 4) && !(TSCREAD4(sc, LPC32XX_TSC_STAT) & LPC32XX_TSC_STAT_FIFO_EMPTY)) {
+ tmp = TSCREAD4(sc, LPC32XX_TSC_FIFO);
+ xs[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK - LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(tmp);
+ ys[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK - LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(tmp);
+ rv[idx] = tmp;
+ idx++;
+ }
+
+ /* Data is only valid if pen is still down in last sample */
+ if(!(rv[3] & LPC32XX_TSC_FIFO_TS_P_LEVEL) && (idx == 4)) {
+ /* Use average of 2nd and 3rd sample for position */
+ evdev_push_event(sc->sc_evdev, EV_ABS, ABS_X, (xs[1] + xs[2]) / 2);
+ evdev_push_event(sc->sc_evdev, EV_ABS, ABS_Y, (ys[1] + ys[2]) / 2);
+ evdev_push_event(sc->sc_evdev, EV_KEY, BTN_TOUCH, 1);
+ } else {
+ evdev_push_event(sc->sc_evdev, EV_KEY, BTN_TOUCH, 0);
+ }
+ evdev_sync(sc->sc_evdev);
+
+ LPC_TSC_UNLOCK(sc);
+}
+
+static void
+lpc_tsc_init(struct lpc_tsc_softc *sc)
+{
+ uint32_t tmp;
+
+ tmp = TSCREAD4(sc, LPC32XX_TSC_CON) & ~LPC32XX_TSC_ADCCON_POWER_UP;
+
+ /* Set the TSC FIFO depth to 4 samples @ 10-bits per sample (max) */
+ tmp = LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 |
+ LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(10) |
+ LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(10);
+ TSCWRITE4(sc, LPC32XX_TSC_CON, tmp);
+
+ /* These values are all preset */
+ TSCWRITE4(sc, LPC32XX_TSC_SEL, LPC32XX_TSC_SEL_DEFVAL);
+ TSCWRITE4(sc, LPC32XX_TSC_MIN_X, LPC32XX_TSC_MIN_XY_VAL);
+ TSCWRITE4(sc, LPC32XX_TSC_MAX_X, LPC32XX_TSC_MAX_XY_VAL);
+ TSCWRITE4(sc, LPC32XX_TSC_MIN_Y, LPC32XX_TSC_MIN_XY_VAL);
+ TSCWRITE4(sc, LPC32XX_TSC_MAX_Y, LPC32XX_TSC_MAX_XY_VAL);
+
+ /* Aux support is not used */
+ TSCWRITE4(sc, LPC32XX_TSC_AUX_UTR, 0);
+ TSCWRITE4(sc, LPC32XX_TSC_AUX_MIN, 0);
+ TSCWRITE4(sc, LPC32XX_TSC_AUX_MAX, 0);
+
+ /*
+ * Set sample rate to about 240Hz per X/Y pair. A single measurement
+ * consists of 4 pairs which gives about a 60Hz sample rate based on
+ * a stable 32768Hz clock source. Values are in clocks.
+ * Rate is (32768 / (RTR + XCONV + RTR + YCONV + DXP + TTR + UTR) / 4
+ */
+ TSCWRITE4(sc, LPC32XX_TSC_RTR, 0x2);
+ TSCWRITE4(sc, LPC32XX_TSC_DTR, 0x2);
+ TSCWRITE4(sc, LPC32XX_TSC_TTR, 0x10);
+ TSCWRITE4(sc, LPC32XX_TSC_DXP, 0x4);
+ TSCWRITE4(sc, LPC32XX_TSC_UTR, 88);
+
+ lpc_adc_fifo_clear(sc);
+
+ /* Enable automatic ts event capture */
+ TSCWRITE4(sc, LPC32XX_TSC_CON, tmp | LPC32XX_TSC_ADCCON_AUTO_EN);
+}
+
+static void
+lpc_tsc_ev_close(struct evdev_dev *evdev, void *data)
+{
+ struct lpc_tsc_softc *sc = (struct lpc_tsc_softc *)data;
+ uint32_t tmp;
+
+ LPC_TSC_LOCK_ASSERT(sc);
+
+ /* Disable auto mode */
+ tmp = TSCREAD4(sc, LPC32XX_TSC_CON) & ~LPC32XX_TSC_ADCCON_AUTO_EN;
+ TSCWRITE4(sc, LPC32XX_TSC_CON, tmp);
+
+ lpc_adc_module_disable(sc);
+}
+
+static int
+lpc_tsc_ev_open(struct evdev_dev *evdev, void *data)
+{
+ struct lpc_tsc_softc *sc = (struct lpc_tsc_softc *)data;
+
+ LPC_TSC_LOCK_ASSERT(sc);
+
+ lpc_adc_module_enable(sc);
+
+ lpc_tsc_init(sc);
+
+ return (0);
+}
+
+static int
+lpc_tsc_probe(device_t dev)
+{
+ device_set_desc(dev, "LPC32x0 Touchscreen controller");
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+lpc_tsc_attach(device_t dev)
+{
+ struct lpc_tsc_softc *sc;
+ int rid;
+ int err;
+
+ /* set self dev */
+ sc = device_get_softc(dev);
+ sc->sc_dev = dev;
+
+ rid = 0;
+ sc->sc_io_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
+ if (!sc->sc_io_res) {
+ device_printf(dev, "cannot map LPC TSC register space\n");
+ goto fail;
+ }
+
+ sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
+ sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
+ sc->sc_io_size = rman_get_size(sc->sc_io_res);
+
+ rid = 0;
+ sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
+ if (sc->sc_irq_res == NULL) {
+ device_printf(dev, "cannot allocate interrupt\n");
+ goto fail;
+ }
+
+ err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_MISC | INTR_MPSAFE,
+ NULL, (void *)lpc_tsc_interrupt, sc, &sc->sc_intr_hdl);
+ if (err) {
+ sc->sc_intr_hdl = NULL;
+ goto fail;
+ }
+
+ LPC_TSC_LOCK_INIT(sc);
+
+ sc->sc_evdev = evdev_alloc();
+ evdev_set_name(sc->sc_evdev, device_get_desc(sc->sc_dev));
+ evdev_set_phys(sc->sc_evdev, device_get_nameunit(sc->sc_dev));
+ evdev_set_id(sc->sc_evdev, BUS_HOST, 0, 0, 0);
+ evdev_set_methods(sc->sc_evdev, sc, &lpc_tsc_evdev_methods);
+ evdev_support_prop(sc->sc_evdev, INPUT_PROP_DIRECT);
+ evdev_support_event(sc->sc_evdev, EV_SYN);
+ evdev_support_event(sc->sc_evdev, EV_ABS);
+ evdev_support_event(sc->sc_evdev, EV_KEY);
+
+ evdev_support_abs(sc->sc_evdev, ABS_X, 0, LPC32XX_TSC_MIN_XY_VAL,
+ LPC32XX_TSC_MAX_XY_VAL, 0, 0, 0);
+ evdev_support_abs(sc->sc_evdev, ABS_Y, 0, LPC32XX_TSC_MIN_XY_VAL,
+ LPC32XX_TSC_MAX_XY_VAL, 0, 0, 0);
+
+ evdev_support_key(sc->sc_evdev, BTN_TOUCH);
+
+ err = evdev_register_mtx(sc->sc_evdev, &sc->sc_mtx);
+ if (err) {
+ evdev_free(sc->sc_evdev);
+ sc->sc_evdev = NULL; /* Avoid double free */
+ goto fail;
+ }
+
+ return (0);
+
+fail:
+ if (sc->sc_intr_hdl)
+ bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_intr_hdl);
+ if (sc->sc_irq_res)
+ bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res);
+ if (sc->sc_io_res)
+ bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_io_res);
+
+ return (ENXIO);
+}
+
+static int
+lpc_tsc_detach(device_t dev)
+{
+ struct lpc_tsc_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ evdev_free(sc->sc_evdev);
+
+ bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_intr_hdl);
+ bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res);
+ bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_io_res);
+
+ LPC_TSC_LOCK_DESTROY(sc);
+ return (0);
+}
+
+static device_method_t lpc_tsc_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, lpc_tsc_probe),
+ DEVMETHOD(device_attach, lpc_tsc_attach),
+ DEVMETHOD(device_detach, lpc_tsc_detach),
+
+ DEVMETHOD_END
+};
+
+static driver_t lpc_tsc_driver = {
+ "lpctsc",
+ lpc_tsc_methods,
+ sizeof(struct lpc_tsc_softc),
+};
+
+static devclass_t lpc_tsc_devclass;
+
+DRIVER_MODULE(lpctsc, nexus, lpc_tsc_driver, lpc_tsc_devclass, 0, 0);
+MODULE_DEPEND(lpctsc, evdev, 1, 1, 1);
+
+#endif /* defined(LIBBSP_ARM_LPC32XX_BSP_H) */
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