start of the tsc2100 driver.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14816 a1c6a512-1295-4272-9138-f99709370657

7 files changed, 208 insertions, 6 deletions

diff --git a/firmware/SOURCES b/firmware/SOURCES
index 454f9e1..c98b44d 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -253,6 +253,11 @@ drivers/usb/arcotg_udc.c
 #endif /* !defined(BOOTLOADER) */
 #endif /* !defined(SIMULATOR) */
 
+/* Other Random Hardware */
+#ifdef HAVE_TSC2100
+drivers/tsc2100.c
+#endif
+
 /* CPU Specific - By class then particular chip if applicable */
 #if defined(CPU_SH)
 
diff --git a/firmware/drivers/tsc2100.c b/firmware/drivers/tsc2100.c
new file mode 100644
index 0000000..19da33e
--- /dev/null
+++ b/firmware/drivers/tsc2100.c
@@ -0,0 +1,64 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: $
+ *
+ * Copyright (C) 2007 by Jonathan Gordon
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "config.h"
+#include "cpu.h"
+#include "system.h"
+#include "spi.h"
+#include "tsc2100.h"
+
+/* Read X, Y, Z1, Z2 touchscreen coordinates. */
+void tsc2100_read_values(short *x, short* y, short *z1, short *z2)
+{
+    int page = 0, address = 0;
+    unsigned short command = 0x8000|(page << 11)|(address << 5);
+    unsigned char out[] = {command >> 8, command & 0xff};
+    unsigned char in[8];
+    spi_block_transfer(out, sizeof(out), in, sizeof(in));
+
+    *x = (in[0]<<8)|in[1];
+    *y = (in[2]<<8)|in[3];
+    *z1 = (in[4]<<8)|in[5];
+    *z2 = (in[6]<<8)|in[7];
+}
+
+short tsc2100_readreg(int page, int address)
+{
+    unsigned short command = 0x8000|(page << 11)|(address << 5);
+    unsigned char out[] = {command >> 8, command & 0xff};
+    unsigned char in[2];
+    spi_block_transfer(out, sizeof(out), in, sizeof(in));
+    return (in[0]<<8)|in[1];
+}
+
+
+void tsc2100_writereg(int page, int address, short value)
+{
+    unsigned short command = 0x8000|(page << 11)|(address << 5);
+    unsigned char out[4] = {command >> 8, command & 0xff,
+                            value >> 8,   value & 0xff};
+    spi_block_transfer(out, sizeof(out), NULL, 0);
+}
+
+void tsc2100_keyclick(void)
+{
+    // 1100 0100 0001 0000
+    short val = 0xC410;
+    tsc2100_writereg(TSAC2_PAGE, TSAC2_ADDRESS, val);
+}
diff --git a/firmware/export/config-mrobe500.h b/firmware/export/config-mrobe500.h
index 3e74db6..a9c610f 100644
--- a/firmware/export/config-mrobe500.h
+++ b/firmware/export/config-mrobe500.h
@@ -89,6 +89,9 @@
 /* Define this if you have a Motorola SCF5249 */
 #define CONFIG_CPU DM320
 
+/* Define this if you have a Texas Instruments TSC2100 touch screen */
+#define HAVE_TSC2100
+
 /* Define this if you want to use coldfire's i2c interface */
 //#define CONFIG_I2C I2C_S3C2440
 
diff --git a/firmware/export/spi.h b/firmware/export/spi.h
new file mode 100644
index 0000000..aafc367
--- /dev/null
+++ b/firmware/export/spi.h
@@ -0,0 +1,26 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: $
+ *
+ * Copyright (C) 2007 by Catalin Patulea
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __SPI_H__
+#define __SPI_H__
+
+int spi_block_transfer(const uint8_t *tx_bytes, unsigned int tx_size,
+                             uint8_t *rx_bytes, unsigned int rx_size);
+void spi_init(void);
+
+#endif
diff --git a/firmware/export/tsc2100.h b/firmware/export/tsc2100.h
new file mode 100644
index 0000000..ff30c64
--- /dev/null
+++ b/firmware/export/tsc2100.h
@@ -0,0 +1,104 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id: $
+ *
+ * Copyright (C) 2007 by Jonathan Gordon
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __TSC2100_H_
+#define __TSC2100_H_
+
+/* Read X, Y, Z1, Z2 touchscreen coordinates. */
+void tsc2100_read_values(short *x, short* y, short *z1, short *z2);
+
+/* read a register */
+short tsc2100_readreg(int page, int address);
+/* write a value to the register */
+void tsc2100_writereg(int page, int address, short value);
+
+/* ts adc page defines (page 1, 00h ) (refer to page 40 of the datasheet) */
+#define TSADC_PAGE          1
+#define TSADC_ADDRESS       0x00
+#define TSADC_PSTCM         (1<<15)
+#define TSADC_ADST          (1<<14)
+#define TSADC_ADSCM_MASK    (0x3C00)
+#define TSADC_ADSCM_SHIFT   10
+#define TSADC_RESOL_MASK    (0x0300)
+#define TSADC_RESOL_SHIFT   8
+#define TSADC_ADAVG_MASK    (0x00C0)
+#define TSADC_ADAVG_SHIFT   6
+#define TSADC_ADCR_MASK     (0x0030)
+#define TSADC_ADCR_SHIFT    4
+#define TSADC_PVSTC_MASK    (0x000E)
+#define TSADC_PVSTC_SHIFT   1
+#define TSADC_AVGFS         (1<<0)
+
+/* ts status page defines (page 1, 01h ) (refer to page 41 of the datasheet) */
+#define TSSTAT_PAGE             1
+#define TSSTAT_ADDRESS          0x01
+#define TSSTAT_PINTDAV_MASK     0xC000 /* controls the !PINTDAV pin */
+#define TSSTAT_PINTDAV_SHIFT    14
+/* these are all read only */
+#define TSSTAT_PWRDN            (1<<13)
+#define TSSTAT_HCTLM            (1<<12)
+#define TSSTAT_DAVAIL           (1<<11)
+#define TSSTAT_XSTAT            (1<<10)
+#define TSSTAT_YSTAT            (1<<9)
+#define TSSTAT_Z1STAT           (1<<8)
+#define TSSTAT_Z2STAT           (1<<7)
+#define TSSTAT_B1STAT           (1<<6)
+#define TSSTAT_B2STAT           (1<<5)
+#define TSSTAT_AXSTAT           (1<<4)
+// Bit 3 is reserved            (1<<3)
+#define TSSTAT_T1STAT           (1<<2)
+#define TSSTAT_T2STAT           (1<<1)
+// Bit 0 is reserved            (1<<0)
+
+/* ts Reset Control */
+#define TSRESET_PAGE    1
+#define TSRESET_ADDRESS 0x04
+#define TSRESET_VALUE   0xBB00
+
+
+
+/* ts audio control 2 */
+#define TSAC2_PAGE          2
+#define TSAC2_ADDRESS       0x04
+#define TSAC2_KCLEN         (1<<15)
+#define TSAC2_KCLAC_MASK    0x7000
+#define TSAC2_KCLSC_SHIFT   12
+#define TSAC2_APGASS        (1<<11)
+#define TSAC2_KCLFRQ_MASK   0x0700
+#define TSAC2_KCLFRQ_SHIFT  8
+#define TSAC2_KCLLN_MASK    0x00F0
+#define TSAC2_KCLLN_SHIFT   4
+#define TSAC2_DLGAF         (1<<3) /* r only */
+#define TSAC2_DRGAF         (1<<2) /* r only */
+#define TSAC2_DASTC         (1<<1)
+#define TSAC2_ADGAF         (1<<0) /* r only */
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#endif
diff --git a/firmware/target/arm/olympus/mrobe-500/spi-mr500.c b/firmware/target/arm/olympus/mrobe-500/spi-mr500.c
index 6c0d4b5..8aeecd9 100644
--- a/firmware/target/arm/olympus/mrobe-500/spi-mr500.c
+++ b/firmware/target/arm/olympus/mrobe-500/spi-mr500.c
@@ -31,8 +31,8 @@
 #define clr_gio_enable() outw(GIO_TS_ENABLE, IO_GIO_BITSET1)
 #define set_gio_enable() outw(GIO_TS_ENABLE, IO_GIO_BITCLR1)
 
-int dm320_spi_block_transfer(const uint8_t *tx_bytes, unsigned int tx_size,
-    uint8_t *rx_bytes, unsigned int rx_size)
+int spi_block_transfer(const uint8_t *tx_bytes, unsigned int tx_size,
+                             uint8_t *rx_bytes, unsigned int rx_size)
 {
     /* Activate the slave select pin */
     set_gio_enable();
@@ -63,7 +63,7 @@ int dm320_spi_block_transfer(const uint8_t *tx_bytes, unsigned int tx_size,
     return 0;
 }
 
-void dm320_spi_init(void)
+void spi_init(void)
 {
     /* Set SCLK idle level = 0 */
     IO_SERIAL0_MODE |= (1<<10);
diff --git a/firmware/target/arm/olympus/mrobe-500/spi-target.h b/firmware/target/arm/olympus/mrobe-500/spi-target.h
index ebaacb4..29aff47 100644
--- a/firmware/target/arm/olympus/mrobe-500/spi-target.h
+++ b/firmware/target/arm/olympus/mrobe-500/spi-target.h
@@ -22,8 +22,8 @@
 
 #include <inttypes.h>
 
-void dm320_spi_init(void);
-int dm320_spi_block_transfer(const uint8_t *tx_bytes, unsigned int tx_size,
-    uint8_t *rx_bytes, unsigned int rx_size);
+void spi_init(void);
+int spi_block_transfer(const uint8_t *tx_bytes, unsigned int tx_size,
+                             uint8_t *rx_bytes, unsigned int rx_size);
 
 #endif