summaryrefslogtreecommitdiffstats
path: root/firmware
diff options
context:
space:
mode:
authorAmaury Pouly <pamaury@rockbox.org>2011-05-11 22:38:09 +0000
committerAmaury Pouly <pamaury@rockbox.org>2011-05-11 22:38:09 +0000
commit86e8c283307d3d884a0d5dba3b50fed0e4ad0914 (patch)
tree5f25098df90e991df7ce5b602b3787399fdc3887 /firmware
parentbc315ad7312ab5d170c6d73bd1c40c414e780d52 (diff)
downloadrockbox-86e8c283307d3d884a0d5dba3b50fed0e4ad0914.tar.gz
rockbox-86e8c283307d3d884a0d5dba3b50fed0e4ad0914.tar.bz2
rockbox-86e8c283307d3d884a0d5dba3b50fed0e4ad0914.zip
fuze+: implement Synaptics RMI driver on top of i2c, add touchpad debug screen, bootloader enters debug screen by default
Since the bootloader currently always fails at storage point (unimplemented), always enter touchpad debug screen and power off which pressing power button. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29859 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware')
-rw-r--r--firmware/SOURCES2
-rw-r--r--firmware/drivers/synaptics-rmi.c77
-rw-r--r--firmware/export/synaptics-rmi.h63
-rw-r--r--firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c134
-rw-r--r--firmware/target/arm/imx233/sansa-fuzeplus/button-target.h1
5 files changed, 277 insertions, 0 deletions
diff --git a/firmware/SOURCES b/firmware/SOURCES
index e5eb0e6e1f..6d4ef9fe2b 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -1435,6 +1435,8 @@ target/arm/as3525/lcd-as-e200v2-fuze-fuzev2.S
#ifdef SANSA_FUZEPLUS
#ifndef SIMULATOR
+drivers/generic_i2c.c
+drivers/synaptics-rmi.c
target/arm/imx233/sansa-fuzeplus/backlight-fuzeplus.c
target/arm/imx233/sansa-fuzeplus/lcd-fuzeplus.c
target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c
diff --git a/firmware/drivers/synaptics-rmi.c b/firmware/drivers/synaptics-rmi.c
new file mode 100644
index 0000000000..c6a1bae168
--- /dev/null
+++ b/firmware/drivers/synaptics-rmi.c
@@ -0,0 +1,77 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2011 by Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "system.h"
+#include "generic_i2c.h"
+#include "synaptics-rmi.h"
+
+static int rmi_cur_page;
+static int rmi_i2c_addr;
+static int rmi_i2c_bus;
+
+/* NOTE:
+ * RMI over i2c supports some special aliases on page 0x2 but this driver don't
+ * use them */
+
+int rmi_init(int i2c_bus_index, int i2c_dev_addr)
+{
+ rmi_i2c_bus = i2c_bus_index;
+ rmi_i2c_addr = i2c_dev_addr;
+ rmi_cur_page = 0x4;
+ return 0;
+}
+
+static int rmi_select_page(unsigned char page)
+{
+ /* Lazy page select */
+ if(page != rmi_cur_page)
+ {
+ rmi_cur_page = page;
+ return i2c_write_data(rmi_i2c_bus, rmi_i2c_addr, RMI_PAGE_SELECT, &page, 1);
+ }
+ else
+ return 0;
+}
+
+int rmi_read(int address, int byte_count, unsigned char *buffer)
+{
+ if(rmi_select_page(address >> 8) < 0)
+ return -1;
+ return i2c_read_data(rmi_i2c_bus, rmi_i2c_addr, address & 0xff, buffer, byte_count);
+}
+
+int rmi_read_single(int address)
+{
+ unsigned char c;
+ int ret = rmi_read(address, 1, &c);
+ return ret < 0 ? ret : c;
+}
+
+int rmi_write(int address, int byte_count, const unsigned char *buffer)
+{
+ if(rmi_select_page(address >> 8) < 0)
+ return -1;
+ return i2c_write_data(rmi_i2c_bus, rmi_i2c_addr, address & 0xff, buffer, byte_count);
+}
+
+int rmi_write_single(int address, unsigned char byte)
+{
+ return rmi_write(address, 1, &byte);
+}
diff --git a/firmware/export/synaptics-rmi.h b/firmware/export/synaptics-rmi.h
new file mode 100644
index 0000000000..59fbb807ab
--- /dev/null
+++ b/firmware/export/synaptics-rmi.h
@@ -0,0 +1,63 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2011 by Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef SYNAPTICS_RMI_H
+#define SYNAPTICS_RMI_H
+
+#define RMI_PAGE_SELECT 0xff /* $xxff */
+#define RMI_MAKE_REG(fn, reg) (((fn) << 8) | (reg))
+#define RMI_DEVICE_CONTROL 0x0 /* $0000 */
+#define RMI_INTERRUPT_ENABLE 0x1 /* $0001 */
+#define RMI_INTERRUPT_REQUEST 0x3 /* $0003 */
+#define RMI_PRODUCT_ID 0x210 /* $0210 */
+#define RMI_PRODUCT_ID_LEN 16
+#define RMI_2D_TOUCHPAD_FUNCTION 0x10
+#define RMI_FUNCTION_PRESENCE(fn) RMI_MAKE_REG(0x03, fn) /* $03xx */
+#define RMI_FUNCTION_VERSION(fn) RMI_MAKE_REG(fn, 0) /* $xx00 */
+#define RMI_DATA_REGISTER(data_src) RMI_MAKE_REG(0x4, data_src) /* $04xx */
+/* 2D TouchPad/ClearPad */
+#define RMI_2D_REG(reg) RMI_MAKE_REG(RMI_2D_TOUCHPAD_FUNCTION, reg)
+#define RMI_2D_SENSOR_PROP1(sens) RMI_2D_REG(8 * (sens) + 0x2)
+#define RMI_2D_SENSOR_PROP2(sens) RMI_2D_REG(8 * (sens) + 0x3)
+#define RMI_2D_SENSOR_XMAX_MSB(s) RMI_2D_REG(8 * (s) + 0x4)
+#define RMI_2D_SENSOR_XMAX_LSB(s) RMI_2D_REG(8 * (s) + 0x5)
+#define RMI_2D_SENSOR_YMAX_MSB(s) RMI_2D_REG(8 * (s) + 0x6)
+#define RMI_2D_SENSOR_YMAX_LSB(s) RMI_2D_REG(8 * (s) + 0x7)
+#define RMI_2D_SENSOR_RESOLUTION(s) RMI_2D_REG(8 * (s) + 0x8)
+
+/* Initialize the RMI driver, the i2c_bus_index is the bus index returned by
+ * the generic_i2c driver; the i2c_dev_addr is the i2c address of the device.
+ * NOTE: the driver automatically handles the page select mechanism used for
+ * RMI over i2c and assumes a standard page select register at 0xff. */
+int rmi_init(int i2c_bus_index, int i2c_dev_addr);
+/* Read one or more registers.
+ * WARNING: don't cross a page boundary ! */
+int rmi_read(int address, int byte_count, unsigned char *buffer);
+/* Read a single register (return -1 on error)
+ * WARNING: beware of register consistency (N x read 1 byte != reads N bytes) */
+int rmi_read_single(int address); /* return byte value or <0 in case of error */
+/* Write one of more register
+ * WARNING: don't cross a page boundary ! */
+int rmi_write(int address, int byte_count, const unsigned char *buffer);
+/* Write one register
+ * WARNING: don't cross a page boundary ! */
+int rmi_write_single(int address, unsigned char byte);
+
+#endif
diff --git a/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c b/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c
index 4882f243aa..1b8116b1b7 100644
--- a/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c
+++ b/firmware/target/arm/imx233/sansa-fuzeplus/button-fuzeplus.c
@@ -22,9 +22,143 @@
#include "system.h"
#include "system-target.h"
#include "pinctrl-imx233.h"
+#include "generic_i2c.h"
+#include "synaptics-rmi.h"
+#include "lcd.h"
+
+static void i2c_scl_dir(bool out)
+{
+ imx233_enable_gpio_output(0, 30, out);
+}
+
+static void i2c_sda_dir(bool out)
+{
+ imx233_enable_gpio_output(0, 31, out);
+}
+
+static void i2c_scl_out(bool high)
+{
+ imx233_set_gpio_output(0, 30, high);
+}
+
+static void i2c_sda_out(bool high)
+{
+ imx233_set_gpio_output(0, 31, high);
+}
+
+static bool i2c_scl_in(void)
+{
+ return imx233_get_gpio_input_mask(0, 1 << 30);
+}
+
+static bool i2c_sda_in(void)
+{
+ return imx233_get_gpio_input_mask(0, 1 << 31);
+}
+
+static void i2c_delay(int d)
+{
+ udelay(d);
+}
+
+struct i2c_interface btn_i2c =
+{
+ .scl_dir = i2c_scl_dir,
+ .sda_dir = i2c_sda_dir,
+ .scl_out = i2c_scl_out,
+ .sda_out = i2c_sda_out,
+ .scl_in = i2c_scl_in,
+ .sda_in = i2c_sda_in,
+ .delay = i2c_delay,
+ .delay_hd_sta = 4,
+ .delay_hd_dat = 5,
+ .delay_su_dat = 1,
+ .delay_su_sto = 4,
+ .delay_su_sta = 5,
+ .delay_thigh = 4
+};
+
+int rmi_i2c_bus = -1;
+
+void button_debug_screen(void)
+{
+ char product_id[RMI_PRODUCT_ID_LEN];
+ rmi_read(RMI_PRODUCT_ID, RMI_PRODUCT_ID_LEN, product_id);
+
+ while(1)
+ {
+ lcd_clear_display();
+ int btns = button_read_device();
+ lcd_putsf(0, 0, "button bitmap: %x", btns);
+ lcd_putsf(0, 1, "RMI: product=%s", product_id);
+ lcd_putsf(0, 2, "touchpad presence: %x", rmi_read_single(RMI_FUNCTION_PRESENCE(RMI_2D_TOUCHPAD_FUNCTION)));
+ lcd_putsf(0, 3, "sensor prop: %x", rmi_read_single(RMI_2D_SENSOR_PROP2(0)));
+ int x_max = rmi_read_single(RMI_2D_SENSOR_XMAX_MSB(0)) << 8 | rmi_read_single(RMI_2D_SENSOR_XMAX_LSB(0));
+ int y_max = rmi_read_single(RMI_2D_SENSOR_YMAX_MSB(0)) << 8 | rmi_read_single(RMI_2D_SENSOR_YMAX_LSB(0));
+ lcd_putsf(0, 4, "xmax=%d ymax=%d res=%d", x_max, y_max,
+ rmi_read_single(RMI_2D_SENSOR_RESOLUTION(0)));
+ lcd_putsf(0, 5, "din0=%x", imx233_get_gpio_input_mask(0, 0x08000000));
+ lcd_putsf(0, 6, "dev ctl: %x", rmi_read_single(RMI_DEVICE_CONTROL));
+ lcd_putsf(0, 7, "int en: %x", rmi_read_single(RMI_INTERRUPT_ENABLE));
+ lcd_putsf(0, 8, "int req: %x", rmi_read_single(RMI_INTERRUPT_REQUEST));
+ union
+ {
+ unsigned char data[10];
+ struct
+ {
+ unsigned char absolute_misc;
+ unsigned char absolute_z;
+ unsigned char absolute_x_msb;
+ unsigned char absolute_x_lsb;
+ unsigned char absolute_y_msb;
+ unsigned char absolute_y_lsb;
+ signed char relative_x; /* signed */
+ signed char relative_y; /* signed */
+ unsigned char gesture_misc;
+ unsigned char gesture_flick;
+ } __attribute__((packed)) s;
+ }u;
+ int absolute_x = u.s.absolute_x_msb << 8 | u.s.absolute_x_lsb;
+ int absolute_y = u.s.absolute_y_msb << 8 | u.s.absolute_y_lsb;
+ rmi_read(RMI_DATA_REGISTER(0), 10, u.data);
+ lcd_putsf(0, 9, "abs: %d %d", absolute_x, absolute_y);
+ lcd_putsf(0, 10, "rel: %d %d", (int)u.s.relative_x, (int)u.s.relative_y);
+ lcd_putsf(0, 11, "gesture: %x %x", u.s.gesture_misc, u.s.gesture_flick);
+
+ lcd_update();
+
+ if(btns & BUTTON_POWER)
+ break;
+ yield();
+ }
+}
void button_init_device(void)
{
+ rmi_i2c_bus = i2c_add_node(&btn_i2c);
+ rmi_init(rmi_i2c_bus, 0x40);
+
+ /* Synaptics TouchPad information:
+ * - product id: 1533
+ * - nr function: 1 (0x10 = 2D touchpad)
+ * 2D Touchpad information (function 0x10)
+ * - nr data sources: 3
+ * - standard layout
+ * - extra data registers: 7
+ * - nr sensors: 1
+ * 2D Touchpad Sensor #0 information:
+ * - has relative data: yes
+ * - has palm detect: yes
+ * - has multi finger: yes
+ * - has enhanced gesture: yes
+ * - has scroller: no
+ * - has 2D scrollers: no
+ * - Maximum X: 3009
+ * - Maxumum Y: 1974
+ * - Resolution: 82
+ *
+ * ATTENTION line: B0P27 asserted low
+ */
}
int button_read_device(void)
diff --git a/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h b/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h
index 81bbc34511..f22c06882f 100644
--- a/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h
+++ b/firmware/target/arm/imx233/sansa-fuzeplus/button-target.h
@@ -26,6 +26,7 @@
void button_init_device(void);
int button_read_device(void);
+void button_debug_screen(void);
/* Main unit's buttons */
#define BUTTON_POWER 0x00000001