From 0c0d06cac63ee327ceaab4b5ffe2206574ab86bd Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 14 Aug 2012 00:13:22 -0300 Subject: [media] rename most media/video usb drivers to media/usb Rename all USB drivers with their own directory under drivers/media/video into drivers/media/usb and update the building system. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx231xx/cx231xx-i2c.c | 532 ------------------------------ 1 file changed, 532 deletions(-) delete mode 100644 drivers/media/video/cx231xx/cx231xx-i2c.c (limited to 'drivers/media/video/cx231xx/cx231xx-i2c.c') diff --git a/drivers/media/video/cx231xx/cx231xx-i2c.c b/drivers/media/video/cx231xx/cx231xx-i2c.c deleted file mode 100644 index 781feed406f7..000000000000 --- a/drivers/media/video/cx231xx/cx231xx-i2c.c +++ /dev/null @@ -1,532 +0,0 @@ -/* - cx231xx-i2c.c - driver for Conexant Cx23100/101/102 USB video capture devices - - Copyright (C) 2008 - Based on em28xx driver - Based on Cx23885 driver - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include -#include -#include -#include -#include -#include - -#include "cx231xx.h" - -/* ----------------------------------------------------------- */ - -static unsigned int i2c_scan; -module_param(i2c_scan, int, 0444); -MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time"); - -static unsigned int i2c_debug; -module_param(i2c_debug, int, 0644); -MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]"); - -#define dprintk1(lvl, fmt, args...) \ -do { \ - if (i2c_debug >= lvl) { \ - printk(fmt, ##args); \ - } \ -} while (0) - -#define dprintk2(lvl, fmt, args...) \ -do { \ - if (i2c_debug >= lvl) { \ - printk(KERN_DEBUG "%s at %s: " fmt, \ - dev->name, __func__ , ##args); \ - } \ -} while (0) - -static inline bool is_tuner(struct cx231xx *dev, struct cx231xx_i2c *bus, - const struct i2c_msg *msg, int tuner_type) -{ - if (bus->nr != dev->board.tuner_i2c_master) - return false; - - if (msg->addr != dev->board.tuner_addr) - return false; - - if (dev->tuner_type != tuner_type) - return false; - - return true; -} - -/* - * cx231xx_i2c_send_bytes() - */ -int cx231xx_i2c_send_bytes(struct i2c_adapter *i2c_adap, - const struct i2c_msg *msg) -{ - struct cx231xx_i2c *bus = i2c_adap->algo_data; - struct cx231xx *dev = bus->dev; - struct cx231xx_i2c_xfer_data req_data; - int status = 0; - u16 size = 0; - u8 loop = 0; - u8 saddr_len = 1; - u8 *buf_ptr = NULL; - u16 saddr = 0; - u8 need_gpio = 0; - - if (is_tuner(dev, bus, msg, TUNER_XC5000)) { - size = msg->len; - - if (size == 2) { /* register write sub addr */ - /* Just writing sub address will cause problem - * to XC5000. So ignore the request */ - return 0; - } else if (size == 4) { /* register write with sub addr */ - if (msg->len >= 2) - saddr = msg->buf[0] << 8 | msg->buf[1]; - else if (msg->len == 1) - saddr = msg->buf[0]; - - switch (saddr) { - case 0x0000: /* start tuner calibration mode */ - need_gpio = 1; - /* FW Loading is done */ - dev->xc_fw_load_done = 1; - break; - case 0x000D: /* Set signal source */ - case 0x0001: /* Set TV standard - Video */ - case 0x0002: /* Set TV standard - Audio */ - case 0x0003: /* Set RF Frequency */ - need_gpio = 1; - break; - default: - if (dev->xc_fw_load_done) - need_gpio = 1; - break; - } - - if (need_gpio) { - dprintk1(1, - "GPIO WRITE: addr 0x%x, len %d, saddr 0x%x\n", - msg->addr, msg->len, saddr); - - return dev->cx231xx_gpio_i2c_write(dev, - msg->addr, - msg->buf, - msg->len); - } - } - - /* special case for Xc5000 tuner case */ - saddr_len = 1; - - /* adjust the length to correct length */ - size -= saddr_len; - buf_ptr = (u8 *) (msg->buf + 1); - - do { - /* prepare xfer_data struct */ - req_data.dev_addr = msg->addr; - req_data.direction = msg->flags; - req_data.saddr_len = saddr_len; - req_data.saddr_dat = msg->buf[0]; - req_data.buf_size = size > 16 ? 16 : size; - req_data.p_buffer = (u8 *) (buf_ptr + loop * 16); - - bus->i2c_nostop = (size > 16) ? 1 : 0; - bus->i2c_reserve = (loop == 0) ? 0 : 1; - - /* usb send command */ - status = dev->cx231xx_send_usb_command(bus, &req_data); - loop++; - - if (size >= 16) - size -= 16; - else - size = 0; - - } while (size > 0); - - bus->i2c_nostop = 0; - bus->i2c_reserve = 0; - - } else { /* regular case */ - - /* prepare xfer_data struct */ - req_data.dev_addr = msg->addr; - req_data.direction = msg->flags; - req_data.saddr_len = 0; - req_data.saddr_dat = 0; - req_data.buf_size = msg->len; - req_data.p_buffer = msg->buf; - - /* usb send command */ - status = dev->cx231xx_send_usb_command(bus, &req_data); - } - - return status < 0 ? status : 0; -} - -/* - * cx231xx_i2c_recv_bytes() - * read a byte from the i2c device - */ -static int cx231xx_i2c_recv_bytes(struct i2c_adapter *i2c_adap, - const struct i2c_msg *msg) -{ - struct cx231xx_i2c *bus = i2c_adap->algo_data; - struct cx231xx *dev = bus->dev; - struct cx231xx_i2c_xfer_data req_data; - int status = 0; - u16 saddr = 0; - u8 need_gpio = 0; - - if (is_tuner(dev, bus, msg, TUNER_XC5000)) { - if (msg->len == 2) - saddr = msg->buf[0] << 8 | msg->buf[1]; - else if (msg->len == 1) - saddr = msg->buf[0]; - - if (dev->xc_fw_load_done) { - - switch (saddr) { - case 0x0009: /* BUSY check */ - dprintk1(1, - "GPIO R E A D: Special case BUSY check \n"); - /*Try read BUSY register, just set it to zero*/ - msg->buf[0] = 0; - if (msg->len == 2) - msg->buf[1] = 0; - return 0; - case 0x0004: /* read Lock status */ - need_gpio = 1; - break; - - } - - if (need_gpio) { - /* this is a special case to handle Xceive tuner - clock stretch issue with gpio based I2C */ - - dprintk1(1, - "GPIO R E A D: addr 0x%x, len %d, saddr 0x%x\n", - msg->addr, msg->len, - msg->buf[0] << 8 | msg->buf[1]); - - status = - dev->cx231xx_gpio_i2c_write(dev, msg->addr, - msg->buf, - msg->len); - status = - dev->cx231xx_gpio_i2c_read(dev, msg->addr, - msg->buf, - msg->len); - return status; - } - } - - /* prepare xfer_data struct */ - req_data.dev_addr = msg->addr; - req_data.direction = msg->flags; - req_data.saddr_len = msg->len; - req_data.saddr_dat = msg->buf[0] << 8 | msg->buf[1]; - req_data.buf_size = msg->len; - req_data.p_buffer = msg->buf; - - /* usb send command */ - status = dev->cx231xx_send_usb_command(bus, &req_data); - - } else { - - /* prepare xfer_data struct */ - req_data.dev_addr = msg->addr; - req_data.direction = msg->flags; - req_data.saddr_len = 0; - req_data.saddr_dat = 0; - req_data.buf_size = msg->len; - req_data.p_buffer = msg->buf; - - /* usb send command */ - status = dev->cx231xx_send_usb_command(bus, &req_data); - } - - return status < 0 ? status : 0; -} - -/* - * cx231xx_i2c_recv_bytes_with_saddr() - * read a byte from the i2c device - */ -static int cx231xx_i2c_recv_bytes_with_saddr(struct i2c_adapter *i2c_adap, - const struct i2c_msg *msg1, - const struct i2c_msg *msg2) -{ - struct cx231xx_i2c *bus = i2c_adap->algo_data; - struct cx231xx *dev = bus->dev; - struct cx231xx_i2c_xfer_data req_data; - int status = 0; - u16 saddr = 0; - u8 need_gpio = 0; - - if (msg1->len == 2) - saddr = msg1->buf[0] << 8 | msg1->buf[1]; - else if (msg1->len == 1) - saddr = msg1->buf[0]; - - if (is_tuner(dev, bus, msg2, TUNER_XC5000)) { - if ((msg2->len < 16)) { - - dprintk1(1, - "i2c_read: addr 0x%x, len %d, saddr 0x%x, len %d\n", - msg2->addr, msg2->len, saddr, msg1->len); - - switch (saddr) { - case 0x0008: /* read FW load status */ - need_gpio = 1; - break; - case 0x0004: /* read Lock status */ - need_gpio = 1; - break; - } - - if (need_gpio) { - status = - dev->cx231xx_gpio_i2c_write(dev, msg1->addr, - msg1->buf, - msg1->len); - status = - dev->cx231xx_gpio_i2c_read(dev, msg2->addr, - msg2->buf, - msg2->len); - return status; - } - } - } - - /* prepare xfer_data struct */ - req_data.dev_addr = msg2->addr; - req_data.direction = msg2->flags; - req_data.saddr_len = msg1->len; - req_data.saddr_dat = saddr; - req_data.buf_size = msg2->len; - req_data.p_buffer = msg2->buf; - - /* usb send command */ - status = dev->cx231xx_send_usb_command(bus, &req_data); - - return status < 0 ? status : 0; -} - -/* - * cx231xx_i2c_check_for_device() - * check if there is a i2c_device at the supplied address - */ -static int cx231xx_i2c_check_for_device(struct i2c_adapter *i2c_adap, - const struct i2c_msg *msg) -{ - struct cx231xx_i2c *bus = i2c_adap->algo_data; - struct cx231xx *dev = bus->dev; - struct cx231xx_i2c_xfer_data req_data; - int status = 0; - - /* prepare xfer_data struct */ - req_data.dev_addr = msg->addr; - req_data.direction = msg->flags; - req_data.saddr_len = 0; - req_data.saddr_dat = 0; - req_data.buf_size = 0; - req_data.p_buffer = NULL; - - /* usb send command */ - status = dev->cx231xx_send_usb_command(bus, &req_data); - - return status < 0 ? status : 0; -} - -/* - * cx231xx_i2c_xfer() - * the main i2c transfer function - */ -static int cx231xx_i2c_xfer(struct i2c_adapter *i2c_adap, - struct i2c_msg msgs[], int num) -{ - struct cx231xx_i2c *bus = i2c_adap->algo_data; - struct cx231xx *dev = bus->dev; - int addr, rc, i, byte; - - if (num <= 0) - return 0; - mutex_lock(&dev->i2c_lock); - for (i = 0; i < num; i++) { - - addr = msgs[i].addr >> 1; - - dprintk2(2, "%s %s addr=%x len=%d:", - (msgs[i].flags & I2C_M_RD) ? "read" : "write", - i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len); - if (!msgs[i].len) { - /* no len: check only for device presence */ - rc = cx231xx_i2c_check_for_device(i2c_adap, &msgs[i]); - if (rc < 0) { - dprintk2(2, " no device\n"); - mutex_unlock(&dev->i2c_lock); - return rc; - } - - } else if (msgs[i].flags & I2C_M_RD) { - /* read bytes */ - rc = cx231xx_i2c_recv_bytes(i2c_adap, &msgs[i]); - if (i2c_debug >= 2) { - for (byte = 0; byte < msgs[i].len; byte++) - printk(" %02x", msgs[i].buf[byte]); - } - } else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) && - msgs[i].addr == msgs[i + 1].addr - && (msgs[i].len <= 2) && (bus->nr < 3)) { - /* read bytes */ - rc = cx231xx_i2c_recv_bytes_with_saddr(i2c_adap, - &msgs[i], - &msgs[i + 1]); - if (i2c_debug >= 2) { - for (byte = 0; byte < msgs[i].len; byte++) - printk(" %02x", msgs[i].buf[byte]); - } - i++; - } else { - /* write bytes */ - if (i2c_debug >= 2) { - for (byte = 0; byte < msgs[i].len; byte++) - printk(" %02x", msgs[i].buf[byte]); - } - rc = cx231xx_i2c_send_bytes(i2c_adap, &msgs[i]); - } - if (rc < 0) - goto err; - if (i2c_debug >= 2) - printk("\n"); - } - mutex_unlock(&dev->i2c_lock); - return num; -err: - dprintk2(2, " ERROR: %i\n", rc); - mutex_unlock(&dev->i2c_lock); - return rc; -} - -/* ----------------------------------------------------------- */ - -/* - * functionality() - */ -static u32 functionality(struct i2c_adapter *adap) -{ - return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C; -} - -static struct i2c_algorithm cx231xx_algo = { - .master_xfer = cx231xx_i2c_xfer, - .functionality = functionality, -}; - -static struct i2c_adapter cx231xx_adap_template = { - .owner = THIS_MODULE, - .name = "cx231xx", - .algo = &cx231xx_algo, -}; - -static struct i2c_client cx231xx_client_template = { - .name = "cx231xx internal", -}; - -/* ----------------------------------------------------------- */ - -/* - * i2c_devs - * incomplete list of known devices - */ -static char *i2c_devs[128] = { - [0x60 >> 1] = "colibri", - [0x88 >> 1] = "hammerhead", - [0x8e >> 1] = "CIR", - [0x32 >> 1] = "GeminiIII", - [0x02 >> 1] = "Aquarius", - [0xa0 >> 1] = "eeprom", - [0xc0 >> 1] = "tuner", - [0xc2 >> 1] = "tuner", -}; - -/* - * cx231xx_do_i2c_scan() - * check i2c address range for devices - */ -void cx231xx_do_i2c_scan(struct cx231xx *dev, struct i2c_client *c) -{ - unsigned char buf; - int i, rc; - - cx231xx_info(": Checking for I2C devices ..\n"); - for (i = 0; i < 128; i++) { - c->addr = i; - rc = i2c_master_recv(c, &buf, 0); - if (rc < 0) - continue; - cx231xx_info("%s: i2c scan: found device @ 0x%x [%s]\n", - dev->name, i << 1, - i2c_devs[i] ? i2c_devs[i] : "???"); - } - cx231xx_info(": Completed Checking for I2C devices.\n"); -} - -/* - * cx231xx_i2c_register() - * register i2c bus - */ -int cx231xx_i2c_register(struct cx231xx_i2c *bus) -{ - struct cx231xx *dev = bus->dev; - - BUG_ON(!dev->cx231xx_send_usb_command); - - bus->i2c_adap = cx231xx_adap_template; - bus->i2c_client = cx231xx_client_template; - bus->i2c_adap.dev.parent = &dev->udev->dev; - - strlcpy(bus->i2c_adap.name, bus->dev->name, sizeof(bus->i2c_adap.name)); - - bus->i2c_adap.algo_data = bus; - i2c_set_adapdata(&bus->i2c_adap, &dev->v4l2_dev); - i2c_add_adapter(&bus->i2c_adap); - - bus->i2c_client.adapter = &bus->i2c_adap; - - if (0 == bus->i2c_rc) { - if (i2c_scan) - cx231xx_do_i2c_scan(dev, &bus->i2c_client); - } else - cx231xx_warn("%s: i2c bus %d register FAILED\n", - dev->name, bus->nr); - - return bus->i2c_rc; -} - -/* - * cx231xx_i2c_unregister() - * unregister i2c_bus - */ -int cx231xx_i2c_unregister(struct cx231xx_i2c *bus) -{ - i2c_del_adapter(&bus->i2c_adap); - return 0; -} -- cgit v1.2.3