Lines Matching +full:byte +full:- +full:len
1 // SPDX-License-Identifier: GPL-2.0
2 // tm6000-i2c.c - driver for TM5600/TM6000/TM6010 USB video capture devices
4 // Copyright (c) 2006-2007 Mauro Carvalho Chehab <mchehab@kernel.org>
7 // - Fix SMBus Read Byte command
15 #include "tm6000-regs.h"
16 #include <media/v4l2-common.h>
18 #include "tuner-xc2028.h"
21 /* ----------------------------------------------------------- */
29 dev->name, __func__, ##args); } while (0)
32 __u8 reg, char *buf, int len) in tm6000_i2c_send_regs() argument
37 if (dev->dev_type == TM6010) in tm6000_i2c_send_regs()
41 return -1; in tm6000_i2c_send_regs()
43 if (len < 1 || len > i2c_packet_limit) { in tm6000_i2c_send_regs()
45 len, i2c_packet_limit); in tm6000_i2c_send_regs()
46 return -1; in tm6000_i2c_send_regs()
52 addr | reg << 8, 0, buf, len); in tm6000_i2c_send_regs()
63 /* Generic read - doesn't work fine with 16bit registers */
65 __u8 reg, char *buf, int len) in tm6000_i2c_recv_regs() argument
71 if (dev->dev_type == TM6010) in tm6000_i2c_recv_regs()
75 return -1; in tm6000_i2c_recv_regs()
77 if (len < 1 || len > i2c_packet_limit) { in tm6000_i2c_recv_regs()
79 len, i2c_packet_limit); in tm6000_i2c_recv_regs()
80 return -1; in tm6000_i2c_recv_regs()
84 if ((dev->caps.has_zl10353) && (dev->demod_addr << 1 == addr) && (reg % 2 == 0)) { in tm6000_i2c_recv_regs()
88 reg -= 1; in tm6000_i2c_recv_regs()
89 len += 1; in tm6000_i2c_recv_regs()
92 REQ_16_SET_GET_I2C_WR1_RDN, addr | reg << 8, 0, b, len); in tm6000_i2c_recv_regs()
97 REQ_16_SET_GET_I2C_WR1_RDN, addr | reg << 8, 0, buf, len); in tm6000_i2c_recv_regs()
109 __u16 reg, char *buf, int len) in tm6000_i2c_recv_regs16() argument
114 if (!buf || len != 2) in tm6000_i2c_recv_regs16()
115 return -1; in tm6000_i2c_recv_regs16()
118 if (dev->dev_type == TM6010) { in tm6000_i2c_recv_regs16()
131 reg, 0, buf, len); in tm6000_i2c_recv_regs16()
135 addr, reg, buf, len); in tm6000_i2c_recv_regs16()
145 struct tm6000_core *dev = i2c_adap->algo_data; in tm6000_i2c_xfer()
146 int addr, rc, i, byte; in tm6000_i2c_xfer() local
150 i2c_dprintk(2, "%s %s addr=0x%x len=%d:", in tm6000_i2c_xfer()
152 i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len); in tm6000_i2c_xfer()
157 * immediately after a 1 or 2 byte write to select in tm6000_i2c_xfer()
161 rc = -EOPNOTSUPP; in tm6000_i2c_xfer()
163 } else if (i + 1 < num && msgs[i].len <= 2 && in tm6000_i2c_xfer()
166 /* 1 or 2 byte write followed by a read */ in tm6000_i2c_xfer()
168 for (byte = 0; byte < msgs[i].len; byte++) in tm6000_i2c_xfer()
169 printk(KERN_CONT " %02x", msgs[i].buf[byte]); in tm6000_i2c_xfer()
170 i2c_dprintk(2, "; joined to read %s len=%d:", in tm6000_i2c_xfer()
171 i == num - 2 ? "stop" : "nonstop", in tm6000_i2c_xfer()
172 msgs[i + 1].len); in tm6000_i2c_xfer()
174 if (msgs[i].len == 2) { in tm6000_i2c_xfer()
177 msgs[i + 1].buf, msgs[i + 1].len); in tm6000_i2c_xfer()
180 msgs[i + 1].buf, msgs[i + 1].len); in tm6000_i2c_xfer()
185 if (addr == dev->tuner_addr << 1) { in tm6000_i2c_xfer()
190 for (byte = 0; byte < msgs[i].len; byte++) in tm6000_i2c_xfer()
191 printk(KERN_CONT " %02x", msgs[i].buf[byte]); in tm6000_i2c_xfer()
195 for (byte = 0; byte < msgs[i].len; byte++) in tm6000_i2c_xfer()
196 printk(KERN_CONT " %02x", msgs[i].buf[byte]); in tm6000_i2c_xfer()
198 msgs[i].buf + 1, msgs[i].len - 1); in tm6000_i2c_xfer()
215 unsigned char *p = dev->eedata; in tm6000_i2c_eeprom()
218 dev->i2c_client.addr = 0xa0 >> 1; in tm6000_i2c_eeprom()
219 dev->eedata_size = 0; in tm6000_i2c_eeprom()
222 for (i = 0; i < sizeof(dev->eedata); ) { in tm6000_i2c_eeprom()
226 if (p == dev->eedata) in tm6000_i2c_eeprom()
231 dev->name, rc); in tm6000_i2c_eeprom()
233 return -EINVAL; in tm6000_i2c_eeprom()
235 dev->eedata_size++; in tm6000_i2c_eeprom()
238 printk(KERN_INFO "%s: i2c eeprom %02x:", dev->name, i); in tm6000_i2c_eeprom()
239 printk(KERN_CONT " %02x", dev->eedata[i]); in tm6000_i2c_eeprom()
240 if ((dev->eedata[i] >= ' ') && (dev->eedata[i] <= 'z')) in tm6000_i2c_eeprom()
241 bytes[i%16] = dev->eedata[i]; in tm6000_i2c_eeprom()
263 dev->name, rc); in tm6000_i2c_eeprom()
264 return -EINVAL; in tm6000_i2c_eeprom()
267 /* ----------------------------------------------------------- */
282 /* ----------------------------------------------------------- */
292 dev->i2c_adap.owner = THIS_MODULE; in tm6000_i2c_register()
293 dev->i2c_adap.algo = &tm6000_algo; in tm6000_i2c_register()
294 dev->i2c_adap.dev.parent = &dev->udev->dev; in tm6000_i2c_register()
295 strscpy(dev->i2c_adap.name, dev->name, sizeof(dev->i2c_adap.name)); in tm6000_i2c_register()
296 dev->i2c_adap.algo_data = dev; in tm6000_i2c_register()
297 i2c_set_adapdata(&dev->i2c_adap, &dev->v4l2_dev); in tm6000_i2c_register()
298 rc = i2c_add_adapter(&dev->i2c_adap); in tm6000_i2c_register()
302 dev->i2c_client.adapter = &dev->i2c_adap; in tm6000_i2c_register()
303 strscpy(dev->i2c_client.name, "tm6000 internal", I2C_NAME_SIZE); in tm6000_i2c_register()
315 i2c_del_adapter(&dev->i2c_adap); in tm6000_i2c_unregister()