i2c.h (f9a4c2da72d04e13b05deecb800f232d2948eb85) i2c.h (73845350b6281a7afeeb279475e6eb613d7a89f9)
1/*
2 * Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net>
3 * Copyright (C) 2009 - 2013 Heiko Schocher <hs@denx.de>
4 * Changes for multibus/multiadapter I2C support.
5 *
6 * (C) Copyright 2001
7 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
8 *

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179 *
180 * See the deblock() method in 'struct dm_i2c_ops' for full information
181 *
182 * @bus: Bus to recover
183 * @return 0 if OK, -ve on error
184 */
185int i2c_deblock(struct udevice *bus);
186
1/*
2 * Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net>
3 * Copyright (C) 2009 - 2013 Heiko Schocher <hs@denx.de>
4 * Changes for multibus/multiadapter I2C support.
5 *
6 * (C) Copyright 2001
7 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
8 *

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179 *
180 * See the deblock() method in 'struct dm_i2c_ops' for full information
181 *
182 * @bus: Bus to recover
183 * @return 0 if OK, -ve on error
184 */
185int i2c_deblock(struct udevice *bus);
186
187#ifdef CONFIG_DM_I2C_COMPAT
188/**
189 * i2c_probe() - Compatibility function for driver model
190 *
191 * Calls dm_i2c_probe() on the current bus
192 */
193int i2c_probe(uint8_t chip_addr);
194
195/**
196 * i2c_read() - Compatibility function for driver model
197 *
198 * Calls dm_i2c_read() with the device corresponding to @chip_addr, and offset
199 * set to @addr. @alen must match the current setting for the device.
200 */
201int i2c_read(uint8_t chip_addr, unsigned int addr, int alen, uint8_t *buffer,
202 int len);
203
204/**
205 * i2c_write() - Compatibility function for driver model
206 *
207 * Calls dm_i2c_write() with the device corresponding to @chip_addr, and offset
208 * set to @addr. @alen must match the current setting for the device.
209 */
210int i2c_write(uint8_t chip_addr, unsigned int addr, int alen, uint8_t *buffer,
211 int len);
212
213/**
214 * i2c_get_bus_num_fdt() - Compatibility function for driver model
215 *
216 * @return the bus number associated with the given device tree node
217 */
218int i2c_get_bus_num_fdt(int node);
219
220/**
221 * i2c_get_bus_num() - Compatibility function for driver model
222 *
223 * @return the 'current' bus number
224 */
225unsigned int i2c_get_bus_num(void);
226
227/**
228 * i2c_set_bus_num(): Compatibility function for driver model
229 *
230 * Sets the 'current' bus
231 */
232int i2c_set_bus_num(unsigned int bus);
233
234static inline void I2C_SET_BUS(unsigned int bus)
235{
236 i2c_set_bus_num(bus);
237}
238
239static inline unsigned int I2C_GET_BUS(void)
240{
241 return i2c_get_bus_num();
242}
243
244#endif
245
187/*
188 * Not all of these flags are implemented in the U-Boot API
189 */
190enum dm_i2c_msg_flags {
191 I2C_M_TEN = 0x0010, /* ten-bit chip address */
192 I2C_M_RD = 0x0001, /* read data, from slave to master */
193 I2C_M_STOP = 0x8000, /* send stop after this message */
194 I2C_M_NOSTART = 0x4000, /* no start before this message */

--- 611 unchanged lines hidden --- 		246/*
247 * Not all of these flags are implemented in the U-Boot API
248 */
249enum dm_i2c_msg_flags {
250 I2C_M_TEN = 0x0010, /* ten-bit chip address */
251 I2C_M_RD = 0x0001, /* read data, from slave to master */
252 I2C_M_STOP = 0x8000, /* send stop after this message */
253 I2C_M_NOSTART = 0x4000, /* no start before this message */

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