2eb3882889
The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION. drivers/staging/go7007/go7007-driver.c drivers/staging/go7007/go7007-fw.c drivers/staging/go7007/go7007-i2c.c drivers/staging/go7007/go7007-usb.c drivers/staging/go7007/snd-go7007.c drivers/staging/go7007/wis-ov7640.c drivers/staging/go7007/wis-saa7113.c drivers/staging/go7007/wis-saa7115.c drivers/staging/go7007/wis-sony-tuner.c drivers/staging/go7007/wis-tw2804.c drivers/staging/go7007/wis-tw9903.c drivers/staging/go7007/wis-uda1342.c This patch removes the said #include <version.h>. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
309 lines
8.8 KiB
C
309 lines
8.8 KiB
C
/*
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* Copyright (C) 2005-2006 Micronas USA Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/list.h>
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#include <linux/unistd.h>
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#include <linux/time.h>
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#include <linux/device.h>
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#include <linux/i2c.h>
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#include <linux/semaphore.h>
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#include <linux/uaccess.h>
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#include <asm/system.h>
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#include "go7007-priv.h"
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#include "wis-i2c.h"
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/************** Registration interface for I2C client drivers **************/
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/* Since there's no way to auto-probe the I2C devices connected to the I2C
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* bus on the go7007, we have this silly little registration system that
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* client drivers can use to register their I2C driver ID and their
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* detect_client function (the one that's normally passed to i2c_probe).
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*
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* When a new go7007 device is connected, we can look up in a board info
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* table by the USB or PCI vendor/product/revision ID to determine
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* which I2C client module to load. The client driver module will register
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* itself here, and then we can call the registered detect_client function
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* to force-load a new client at the address listed in the board info table.
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*
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* Really the I2C subsystem should have a way to force-load I2C client
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* drivers when we have a priori knowledge of what's on the bus, especially
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* since the existing I2C auto-probe mechanism is so hokey, but we'll use
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* our own mechanism for the time being. */
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struct wis_i2c_client_driver {
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unsigned int id;
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found_proc found_proc;
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struct list_head list;
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};
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static LIST_HEAD(i2c_client_drivers);
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static DECLARE_MUTEX(i2c_client_driver_list_lock);
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/* Client drivers register here by their I2C driver ID */
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int wis_i2c_add_driver(unsigned int id, found_proc found_proc)
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{
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struct wis_i2c_client_driver *driver;
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driver = kmalloc(sizeof(struct wis_i2c_client_driver), GFP_KERNEL);
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if (driver == NULL)
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return -ENOMEM;
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driver->id = id;
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driver->found_proc = found_proc;
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down(&i2c_client_driver_list_lock);
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list_add_tail(&driver->list, &i2c_client_drivers);
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up(&i2c_client_driver_list_lock);
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return 0;
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}
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EXPORT_SYMBOL(wis_i2c_add_driver);
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void wis_i2c_del_driver(found_proc found_proc)
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{
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struct wis_i2c_client_driver *driver, *next;
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down(&i2c_client_driver_list_lock);
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list_for_each_entry_safe(driver, next, &i2c_client_drivers, list)
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if (driver->found_proc == found_proc) {
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list_del(&driver->list);
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kfree(driver);
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}
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up(&i2c_client_driver_list_lock);
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}
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EXPORT_SYMBOL(wis_i2c_del_driver);
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/* The main go7007 driver calls this to instantiate a client by driver
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* ID and bus address, which are both stored in the board info table */
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int wis_i2c_probe_device(struct i2c_adapter *adapter,
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unsigned int id, int addr)
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{
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struct wis_i2c_client_driver *driver;
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int found = 0;
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if (addr < 0 || addr > 0x7f)
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return -1;
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down(&i2c_client_driver_list_lock);
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list_for_each_entry(driver, &i2c_client_drivers, list)
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if (driver->id == id) {
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if (driver->found_proc(adapter, addr, 0) == 0)
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found = 1;
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break;
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}
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up(&i2c_client_driver_list_lock);
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return found;
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}
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/********************* Driver for on-board I2C adapter *********************/
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/* #define GO7007_I2C_DEBUG */
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#define SPI_I2C_ADDR_BASE 0x1400
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#define STATUS_REG_ADDR (SPI_I2C_ADDR_BASE + 0x2)
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#define I2C_CTRL_REG_ADDR (SPI_I2C_ADDR_BASE + 0x6)
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#define I2C_DEV_UP_ADDR_REG_ADDR (SPI_I2C_ADDR_BASE + 0x7)
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#define I2C_LO_ADDR_REG_ADDR (SPI_I2C_ADDR_BASE + 0x8)
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#define I2C_DATA_REG_ADDR (SPI_I2C_ADDR_BASE + 0x9)
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#define I2C_CLKFREQ_REG_ADDR (SPI_I2C_ADDR_BASE + 0xa)
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#define I2C_STATE_MASK 0x0007
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#define I2C_READ_READY_MASK 0x0008
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/* There is only one I2C port on the TW2804 that feeds all four GO7007 VIPs
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* on the Adlink PCI-MPG24, so access is shared between all of them. */
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static DECLARE_MUTEX(adlink_mpg24_i2c_lock);
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static int go7007_i2c_xfer(struct go7007 *go, u16 addr, int read,
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u16 command, int flags, u8 *data)
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{
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int i, ret = -1;
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u16 val;
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if (go->status == STATUS_SHUTDOWN)
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return -1;
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#ifdef GO7007_I2C_DEBUG
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if (read)
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printk(KERN_DEBUG "go7007-i2c: reading 0x%02x on 0x%02x\n",
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command, addr);
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else
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printk(KERN_DEBUG
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"go7007-i2c: writing 0x%02x to 0x%02x on 0x%02x\n",
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*data, command, addr);
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#endif
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down(&go->hw_lock);
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if (go->board_id == GO7007_BOARDID_ADLINK_MPG24) {
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/* Bridge the I2C port on this GO7007 to the shared bus */
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down(&adlink_mpg24_i2c_lock);
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go7007_write_addr(go, 0x3c82, 0x0020);
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}
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/* Wait for I2C adapter to be ready */
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for (i = 0; i < 10; ++i) {
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if (go7007_read_addr(go, STATUS_REG_ADDR, &val) < 0)
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goto i2c_done;
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if (!(val & I2C_STATE_MASK))
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break;
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msleep(100);
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}
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if (i == 10) {
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printk(KERN_ERR "go7007-i2c: I2C adapter is hung\n");
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goto i2c_done;
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}
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/* Set target register (command) */
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go7007_write_addr(go, I2C_CTRL_REG_ADDR, flags);
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go7007_write_addr(go, I2C_LO_ADDR_REG_ADDR, command);
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/* If we're writing, send the data and target address and we're done */
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if (!read) {
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go7007_write_addr(go, I2C_DATA_REG_ADDR, *data);
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go7007_write_addr(go, I2C_DEV_UP_ADDR_REG_ADDR,
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(addr << 9) | (command >> 8));
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ret = 0;
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goto i2c_done;
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}
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/* Otherwise, we're reading. First clear i2c_rx_data_rdy. */
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if (go7007_read_addr(go, I2C_DATA_REG_ADDR, &val) < 0)
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goto i2c_done;
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/* Send the target address plus read flag */
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go7007_write_addr(go, I2C_DEV_UP_ADDR_REG_ADDR,
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(addr << 9) | 0x0100 | (command >> 8));
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/* Wait for i2c_rx_data_rdy */
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for (i = 0; i < 10; ++i) {
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if (go7007_read_addr(go, STATUS_REG_ADDR, &val) < 0)
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goto i2c_done;
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if (val & I2C_READ_READY_MASK)
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break;
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msleep(100);
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}
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if (i == 10) {
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printk(KERN_ERR "go7007-i2c: I2C adapter is hung\n");
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goto i2c_done;
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}
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/* Retrieve the read byte */
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if (go7007_read_addr(go, I2C_DATA_REG_ADDR, &val) < 0)
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goto i2c_done;
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*data = val;
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ret = 0;
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i2c_done:
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if (go->board_id == GO7007_BOARDID_ADLINK_MPG24) {
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/* Isolate the I2C port on this GO7007 from the shared bus */
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go7007_write_addr(go, 0x3c82, 0x0000);
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up(&adlink_mpg24_i2c_lock);
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}
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up(&go->hw_lock);
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return ret;
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}
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static int go7007_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
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unsigned short flags, char read_write,
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u8 command, int size, union i2c_smbus_data *data)
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{
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struct go7007 *go = i2c_get_adapdata(adapter);
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if (size != I2C_SMBUS_BYTE_DATA)
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return -1;
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return go7007_i2c_xfer(go, addr, read_write == I2C_SMBUS_READ, command,
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flags & I2C_CLIENT_SCCB ? 0x10 : 0x00, &data->byte);
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}
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/* VERY LIMITED I2C master xfer function -- only needed because the
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* SMBus functions only support 8-bit commands and the SAA7135 uses
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* 16-bit commands. The I2C interface on the GO7007, as limited as
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* it is, does support this mode. */
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static int go7007_i2c_master_xfer(struct i2c_adapter *adapter,
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struct i2c_msg msgs[], int num)
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{
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struct go7007 *go = i2c_get_adapdata(adapter);
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int i;
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for (i = 0; i < num; ++i) {
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/* We can only do two things here -- write three bytes, or
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* write two bytes and read one byte. */
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if (msgs[i].len == 2) {
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if (i + 1 == num || msgs[i].addr != msgs[i + 1].addr ||
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(msgs[i].flags & I2C_M_RD) ||
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!(msgs[i + 1].flags & I2C_M_RD) ||
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msgs[i + 1].len != 1)
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return -1;
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if (go7007_i2c_xfer(go, msgs[i].addr, 1,
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(msgs[i].buf[0] << 8) | msgs[i].buf[1],
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0x01, &msgs[i + 1].buf[0]) < 0)
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return -1;
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++i;
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} else if (msgs[i].len == 3) {
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if (msgs[i].flags & I2C_M_RD)
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return -1;
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if (msgs[i].len != 3)
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return -1;
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if (go7007_i2c_xfer(go, msgs[i].addr, 0,
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(msgs[i].buf[0] << 8) | msgs[i].buf[1],
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0x01, &msgs[i].buf[2]) < 0)
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return -1;
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} else
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return -1;
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}
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return 0;
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}
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static u32 go7007_functionality(struct i2c_adapter *adapter)
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{
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return I2C_FUNC_SMBUS_BYTE_DATA;
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}
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static struct i2c_algorithm go7007_algo = {
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.smbus_xfer = go7007_smbus_xfer,
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.master_xfer = go7007_i2c_master_xfer,
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.functionality = go7007_functionality,
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};
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static struct i2c_adapter go7007_adap_templ = {
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.owner = THIS_MODULE,
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.class = I2C_CLASS_TV_ANALOG,
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.name = "WIS GO7007SB",
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.id = I2C_ALGO_GO7007,
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.algo = &go7007_algo,
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};
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int go7007_i2c_init(struct go7007 *go)
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{
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memcpy(&go->i2c_adapter, &go7007_adap_templ,
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sizeof(go7007_adap_templ));
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go->i2c_adapter.dev.parent = go->dev;
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i2c_set_adapdata(&go->i2c_adapter, go);
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if (i2c_add_adapter(&go->i2c_adapter) < 0) {
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printk(KERN_ERR
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"go7007-i2c: error: i2c_add_adapter failed\n");
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return -1;
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}
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return 0;
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}
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