apalis_imx6: unify sd/mmc drive strength with linux kernel settings

[oweals/u-boot.git] / include / serial.h

diff --git a/include/serial.h b/include/serial.h
index de21514c0c0d93a1a84f070a6fed6a6004128842..c1368c68b6473bee38e19d766d08324185b3fa47 100644 (file)
--- a/include/serial.h
+++ b/include/serial.h
@@ -118,6 +118,39 @@ enum serial_stop {
                         SERIAL_8_BITS << SERIAL_BITS_SHIFT | \
                         SERIAL_ONE_STOP << SERIAL_STOP_SHIFT)
 
+enum serial_chip_type {
+       SERIAL_CHIP_UNKNOWN = -1,
+       SERIAL_CHIP_16550_COMPATIBLE,
+};
+
+enum adr_space_type {
+       SERIAL_ADDRESS_SPACE_MEMORY = 0,
+       SERIAL_ADDRESS_SPACE_IO,
+};
+
+/**
+ * struct serial_device_info - structure to hold serial device info
+ *
+ * @type:      type of the UART chip
+ * @addr_space:        address space to access the registers
+ * @addr:      physical address of the registers
+ * @reg_width: size (in bytes) of the IO accesses to the registers
+ * @reg_offset:        offset to apply to the @addr from the start of the registers
+ * @reg_shift: quantity to shift the register offsets by
+ * @baudrate:  baud rate
+ */
+struct serial_device_info {
+       enum serial_chip_type type;
+       enum adr_space_type addr_space;
+       ulong addr;
+       u8 reg_width;
+       u8 reg_offset;
+       u8 reg_shift;
+       unsigned int baudrate;
+};
+
+#define SERIAL_DEFAULT_ADDRESS 0xBADACCE5
+
 /**
  * struct struct dm_serial_ops - Driver model serial operations
  *
@@ -202,9 +235,7 @@ struct dm_serial_ops {
         * Get a current config for this device.
         *
         * @dev: Device pointer
-        * @parity: parity to use
-        * @bits: bits number to use
-        * @stop: stop bits number to use
+        * @serial_config: Returns config information (see SERIAL_... above)
         * @return 0 if OK, -ve on error
         */
        int (*getconfig)(struct udevice *dev, uint *serial_config);
@@ -219,6 +250,14 @@ struct dm_serial_ops {
         * @return 0 if OK, -ve on error
         */
        int (*setconfig)(struct udevice *dev, uint serial_config);
+       /**
+        * getinfo() - Get serial device information
+        *
+        * @dev: Device pointer
+        * @info: struct serial_device_info to fill
+        * @return 0 if OK, -ve on error
+        */
+       int (*getinfo)(struct udevice *dev, struct serial_device_info *info);
 };
 
 /**
@@ -241,6 +280,39 @@ struct serial_dev_priv {
 /* Access the serial operations for a device */
 #define serial_get_ops(dev)    ((struct dm_serial_ops *)(dev)->driver->ops)
 
+/**
+ * serial_getconfig() - Get the uart configuration
+ * (parity, 5/6/7/8 bits word length, stop bits)
+ *
+ * Get a current config for this device.
+ *
+ * @dev: Device pointer
+ * @serial_config: Returns config information (see SERIAL_... above)
+ * @return 0 if OK, -ve on error
+ */
+int serial_getconfig(struct udevice *dev, uint *config);
+
+/**
+ * serial_setconfig() - Set up the uart configuration
+ * (parity, 5/6/7/8 bits word length, stop bits)
+ *
+ * Set up a new config for this device.
+ *
+ * @dev: Device pointer
+ * @serial_config: number of bits, parity and number of stopbits to use
+ * @return 0 if OK, -ve on error
+ */
+int serial_setconfig(struct udevice *dev, uint config);
+
+/**
+ * serial_getinfo() - Get serial device information
+ *
+ * @dev: Device pointer
+ * @info: struct serial_device_info to fill
+ * @return 0 if OK, -ve on error
+ */
+int serial_getinfo(struct udevice *dev, struct serial_device_info *info);
+
 void atmel_serial_initialize(void);
 void mcf_serial_initialize(void);
 void mpc85xx_serial_initialize(void);