45 static void cmdbuf_add(struct pt3_i2cbuf *cbuf, enum ctl_cmd cmd)  in cmdbuf_add()  argument
49 	if ((cbuf->num_cmds % 2) == 0)  in cmdbuf_add()
50 		cbuf->tmp = cmd;  in cmdbuf_add()
52 		cbuf->tmp |= cmd << 4;  in cmdbuf_add()
53 		buf_idx = cbuf->num_cmds / 2;  in cmdbuf_add()
54 		if (buf_idx < ARRAY_SIZE(cbuf->data))  in cmdbuf_add()
55 			cbuf->data[buf_idx] = cbuf->tmp;  in cmdbuf_add()
57 	cbuf->num_cmds++;  in cmdbuf_add()
60 static void put_end(struct pt3_i2cbuf *cbuf)  in put_end()  argument
62 	cmdbuf_add(cbuf, I_END);  in put_end()
63 	if (cbuf->num_cmds % 2)  in put_end()
64 		cmdbuf_add(cbuf, I_END);  in put_end()
67 static void put_start(struct pt3_i2cbuf *cbuf)  in put_start()  argument
69 	cmdbuf_add(cbuf, I_DATA_H);  in put_start()
70 	cmdbuf_add(cbuf, I_CLOCK_H);  in put_start()
71 	cmdbuf_add(cbuf, I_DATA_L);  in put_start()
72 	cmdbuf_add(cbuf, I_CLOCK_L);  in put_start()
75 static void put_byte_write(struct pt3_i2cbuf *cbuf, u8 val)  in put_byte_write()  argument
80 		cmdbuf_add(cbuf, (val & mask) ? I_DATA_H_NOP : I_DATA_L_NOP);  in put_byte_write()
81 	cmdbuf_add(cbuf, I_DATA_H_ACK0);  in put_byte_write()
84 static void put_byte_read(struct pt3_i2cbuf *cbuf, u32 size)  in put_byte_read()  argument
90 			cmdbuf_add(cbuf, I_DATA_H_READ);  in put_byte_read()
91 		cmdbuf_add(cbuf, (i == size - 1) ? I_DATA_H_NOP : I_DATA_L_NOP);  in put_byte_read()
95 static void put_stop(struct pt3_i2cbuf *cbuf)  in put_stop()  argument
97 	cmdbuf_add(cbuf, I_DATA_L);  in put_stop()
98 	cmdbuf_add(cbuf, I_CLOCK_H);  in put_stop()
99 	cmdbuf_add(cbuf, I_DATA_H);  in put_stop()
104 static void translate(struct pt3_i2cbuf *cbuf, struct i2c_msg *msgs, int num)  in translate()  argument
109 	cbuf->num_cmds = 0;  in translate()
112 		put_start(cbuf);  in translate()
113 		put_byte_write(cbuf, msgs[i].addr << 1 | rd);  in translate()
115 			put_byte_read(cbuf, msgs[i].len);  in translate()
118 				put_byte_write(cbuf, msgs[i].buf[j]);  in translate()
121 		put_stop(cbuf);  in translate()
122 		put_end(cbuf);  in translate()
195 	struct pt3_i2cbuf *cbuf;  in pt3_i2c_master_xfer()  local
200 	cbuf = pt3->i2c_buf;  in pt3_i2c_master_xfer()
210 	translate(cbuf, msgs, num);  in pt3_i2c_master_xfer()
212 			cbuf->data, cbuf->num_cmds);  in pt3_i2c_master_xfer()