* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
- * Definitions usable by both the cp210x kernel module and userspace.
+ * Header file shared by both the cp210x kernel module and userspace.
*
*/
#if defined(__KERNEL__)
#include <linux/sockios.h>
#else
-#include <asm/types.h>
+#include <linux/types.h>
#include <sys/ioctl.h>
#endif
/* CP2103 GPIO ioctls */
-#define CP210x_IOCTL_GPIOGET (SIOCDEVPRIVATE + 0) /* Get gpio bits */
-#define CP210x_IOCTL_GPIOSET (SIOCDEVPRIVATE + 1) /* Set gpio bits */
-#define CP210x_IOCTL_GPIOBIC (SIOCDEVPRIVATE + 2) /* Clear specific gpio bit(s) */
-#define CP210x_IOCTL_GPIOBIS (SIOCDEVPRIVATE + 3) /* Set specific gpio bit(s) */
+#define CP210x_IOCTL_GPIOGET (SIOCDEVPRIVATE + 0)
+#define CP210x_IOCTL_GPIOSET (SIOCDEVPRIVATE + 1)
+#define CP210x_IOCTL_GPIOBIC (SIOCDEVPRIVATE + 2)
+#define CP210x_IOCTL_GPIOBIS (SIOCDEVPRIVATE + 3)
/* CP210x ioctls principally used during initial device configuration */
-#define CP210x_IOCTL_DEVICERESET (SIOCDEVPRIVATE + 4) /* Reset the cp210x */
-#define CP210x_IOCTL_PORTCONFGET (SIOCDEVPRIVATE + 5) /* Get port configuration */
-#define CP210x_IOCTL_PORTCONFSET (SIOCDEVPRIVATE + 6) /* Set port configuration */
-#define CP210x_IOCTL_SETVID (SIOCDEVPRIVATE + 7) /* Set vendor id */
-#define CP210x_IOCTL_SETPID (SIOCDEVPRIVATE + 8) /* Set product id */
-#define CP210x_IOCTL_SETMFG (SIOCDEVPRIVATE + 9) /* Set manufacturer string */
-#define CP210x_IOCTL_SETPRODUCT (SIOCDEVPRIVATE + 10) /* Set product string */
-#define CP210x_IOCTL_SETSERIAL (SIOCDEVPRIVATE + 11) /* Set serial number string */
-#define CP210x_IOCTL_SETDEVVER (SIOCDEVPRIVATE + 12) /* Set device version id */
+#define CP210x_IOCTL_DEVICERESET (SIOCDEVPRIVATE + 4)
+#define CP210x_IOCTL_PORTCONFGET (SIOCDEVPRIVATE + 5)
+#define CP210x_IOCTL_PORTCONFSET (SIOCDEVPRIVATE + 6)
+#define CP210x_IOCTL_SETVID (SIOCDEVPRIVATE + 7)
+#define CP210x_IOCTL_SETPID (SIOCDEVPRIVATE + 8)
+#define CP210x_IOCTL_SETPRODUCT (SIOCDEVPRIVATE + 9)
+#define CP210x_IOCTL_SETSERIAL (SIOCDEVPRIVATE + 10)
+#define CP210x_IOCTL_SETDEVVER (SIOCDEVPRIVATE + 11)
/* CP2103 GPIO bit positions */
#define GPIO_0 0x01
#define GPIO_MASK (GPIO_3|GPIO_2|GPIO_1|GPIO_0)
/* USB descriptor sizes */
-#define CP210x_MAX_MFG_STRLEN 255
#define CP210x_MAX_PRODUCT_STRLEN 126
#define CP210x_MAX_SERIAL_STRLEN 63
-/* Used to pass variable sized buffers between user and kernel space (ioctls) */
+#if !defined(__KERNEL__)
+/* Mode and latch bit to pin assignments. See AN223 from SiLabs:
+ * https://www.silabs.com/Support Documents/TechnicalDocs/an223.pdf
+ *
+ * 15 - /SUSPEND Can't configure latch
+ * 14 - SUSPEND Can't configure latch
+ * 13 - unused
+ * 12 - unused
+ * 11 - GPIO_3
+ * 10 - GPIO_2
+ * 9 - GPIO_1
+ * 8 - GPIO_0
+ * 7 - /CTS
+ * 6 - /RTS
+ * 5 - RXD Note: set latch value to '1' for proper operation.
+ * 4 - TXD
+ * 3 - /DSR
+ * 2 - /DTR
+ * 1 - /DCD
+ * 0 - /RI
+ *
+ * Mode bit values:
+ * 1 - A value of one in a bit places the corresponding IO pin in push-
+ * pull output mode.
+ * 0 - A value of zero in a bit places the corresponding IO pin in open-
+ * drain output mode.
+ *
+ * Latch bit values:
+ * 1 - A value of one in a bit sets the corresponding IO pin's value to
+ * output high. If the mode is push-pull, the pin sources current
+ * from VIO. If the mode is open-drain, the pin driver is in high
+ * impedance.
+ * 0 - A value of zero in a bit sets the corresponding IO pin's value to
+ * output low. In either mode, push-pull or open-drain, the pin
+ * driver sinks current to ground.
+ */
+#define CP210x_CFG_nSUSPEND 0x8000
+#define CP210x_CFG_SUSPEND 0x4000
+#define CP210x_CFG_UNUSED13 0x2000
+#define CP210x_CFG_UNUSED12 0x1000
+#define CP210x_CFG_GPIO_3 0x0800
+#define CP210x_CFG_GPIO_2 0x0400
+#define CP210x_CFG_GPIO_1 0x0200
+#define CP210x_CFG_GPIO_0 0x0100
+#define CP210x_CFG_nCTS 0x0080
+#define CP210x_CFG_nRTS 0x0040
+#define CP210x_CFG_RXD 0x0020
+#define CP210x_CFG_TXD 0x0010
+#define CP210x_CFG_nDSR 0x0008
+#define CP210x_CFG_nDTR 0x0004
+#define CP210x_CFG_nDCD 0x0002
+#define CP210x_CFG_nRI 0x0001
+
+/* Enhanced function bits:
+ * 7 - GPIO dynamic suspend, for 4 GPIO signals
+ * 6 - Serial dynamic suspend, for 8 UART/Modem signals
+ * 5 - unused, leave zero
+ * 4 - Enable weak pull-ups
+ * 3 - unused, leave zero
+ * 2 - /RS485_TX on GPIO_2
+ * 1 - /RXLED on GPIO_1
+ * 0 - /TXLED on GPIO_0
+*/
+#define CP210x_ENH_GPIO_DYNSUSP 0x80
+#define CP210x_ENH_SERIAL_DYNSUSP 0x40
+#define CP210x_ENH_UNUSED5 0x20
+#define CP210x_ENH_PULLUPS 0x10
+#define CP210x_ENH_UNUSED3 0x08
+#define CP210x_ENH_nRS485_TX 0x04
+#define CP210x_ENH_nRXLED 0x02
+#define CP210x_ENH_nTXLED 0x01
+#endif /* __KERNEL__ */
+
+/* Used to pass variable size buffers between user and kernel space (ioctls) */
struct cp210x_buffer {
__u8 *buf;
__s32 len;
projects / cp210x.git / blobdiff