Lines Matching defs:ccsr_i2c

22 	struct ls_i2c *ccsr_i2c = (void *)nxp_i2c_addr;
26 	i2c_out(&ccsr_i2c->cr, I2C_CR_DIS);
27 	i2c_out(&ccsr_i2c->fd, I2C_FD_CONSERV);
28 	i2c_out(&ccsr_i2c->sr, I2C_SR_RST);
29 	i2c_out(&ccsr_i2c->cr, I2C_CR_EN);
32 static int wait_for_state(struct ls_i2c *ccsr_i2c,
40 		sr = i2c_in(&ccsr_i2c->sr);
42 			i2c_out(&ccsr_i2c->sr, sr);
60 static int tx_byte(struct ls_i2c *ccsr_i2c, unsigned char c)
64 	i2c_out(&ccsr_i2c->sr, I2C_SR_IF);
65 	i2c_out(&ccsr_i2c->dr, c);
66 	ret = wait_for_state(ccsr_i2c, I2C_SR_IF, I2C_SR_IF);
79 static int gen_stop(struct ls_i2c *ccsr_i2c)
84 	cr = i2c_in(&ccsr_i2c->cr);
86 	i2c_out(&ccsr_i2c->cr, cr);
87 	ret = wait_for_state(ccsr_i2c, I2C_SR_IDLE, I2C_SR_BB);
94 static int i2c_write_addr(struct ls_i2c *ccsr_i2c, unsigned char chip,
105 	if (i2c_in(&ccsr_i2c->ad) == (chip << 1)) {
109 	i2c_out(&ccsr_i2c->sr, I2C_SR_IF);
110 	ret = wait_for_state(ccsr_i2c, I2C_SR_IDLE, I2C_SR_BB);
115 	cr = i2c_in(&ccsr_i2c->cr);
117 	i2c_out(&ccsr_i2c->cr, cr);
118 	ret = wait_for_state(ccsr_i2c, I2C_SR_BB, I2C_SR_BB);
125 	i2c_out(&ccsr_i2c->cr, cr);
126 	ret = tx_byte(ccsr_i2c, chip << 1);
128 		gen_stop(ccsr_i2c);
134 		ret = tx_byte(ccsr_i2c, (addr >> (alen << 3)) & 0xff);
136 			gen_stop(ccsr_i2c);
144 static int read_data(struct ls_i2c *ccsr_i2c, unsigned char chip,
151 	cr = i2c_in(&ccsr_i2c->cr);
156 	i2c_out(&ccsr_i2c->cr, cr);
157 	i2c_out(&ccsr_i2c->sr, I2C_SR_IF);
158 	i2c_in(&ccsr_i2c->dr);	/* dummy read */
160 		ret = wait_for_state(ccsr_i2c, I2C_SR_IF, I2C_SR_IF);
162 			gen_stop(ccsr_i2c);
166 			gen_stop(ccsr_i2c);
171 			cr = i2c_in(&ccsr_i2c->cr);
173 			i2c_out(&ccsr_i2c->cr, cr);
175 		i2c_out(&ccsr_i2c->sr, I2C_SR_IF);
176 		buf[i] = i2c_in(&ccsr_i2c->dr);
182 static int write_data(struct ls_i2c *ccsr_i2c, unsigned char chip,
189 		ret = tx_byte(ccsr_i2c, buf[i]);
194 	ret = gen_stop(ccsr_i2c);
205 	struct ls_i2c *ccsr_i2c = (void *)g_nxp_i2c_addr;
207 	ret = i2c_write_addr(ccsr_i2c, chip, addr, alen);
209 		gen_stop(ccsr_i2c);
213 	cr = i2c_in(&ccsr_i2c->cr);
215 	i2c_out(&ccsr_i2c->cr, cr);
217 	ret = tx_byte(ccsr_i2c, (chip << 1) | 1);
219 		gen_stop(ccsr_i2c);
223 	return read_data(ccsr_i2c, chip, buf, len);
230 	struct ls_i2c *ccsr_i2c = (void *)g_nxp_i2c_addr;
232 	ret = i2c_write_addr(ccsr_i2c, chip, addr, alen);
237 	return write_data(ccsr_i2c, chip, buf, len);
243 	struct ls_i2c *ccsr_i2c = (void *)g_nxp_i2c_addr;
245 	ret = i2c_write_addr(ccsr_i2c, chip, 0, 0);
251 	ret = gen_stop(ccsr_i2c);