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Diffstat (limited to 'drivers/staging/go7007/wis-saa7115.c')
-rw-r--r--drivers/staging/go7007/wis-saa7115.c491
1 files changed, 491 insertions, 0 deletions
diff --git a/drivers/staging/go7007/wis-saa7115.c b/drivers/staging/go7007/wis-saa7115.c
new file mode 100644
index 00000000000..5c94c883b31
--- /dev/null
+++ b/drivers/staging/go7007/wis-saa7115.c
@@ -0,0 +1,491 @@
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/version.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <linux/ioctl.h>
+
+#include "wis-i2c.h"
+
+struct wis_saa7115 {
+ int norm;
+ int brightness;
+ int contrast;
+ int saturation;
+ int hue;
+};
+
+static u8 initial_registers[] =
+{
+ 0x01, 0x08,
+ 0x02, 0xc0,
+ 0x03, 0x20,
+ 0x04, 0x80,
+ 0x05, 0x80,
+ 0x06, 0xeb,
+ 0x07, 0xe0,
+ 0x08, 0xf0, /* always toggle FID */
+ 0x09, 0x40,
+ 0x0a, 0x80,
+ 0x0b, 0x40,
+ 0x0c, 0x40,
+ 0x0d, 0x00,
+ 0x0e, 0x03,
+ 0x0f, 0x2a,
+ 0x10, 0x0e,
+ 0x11, 0x00,
+ 0x12, 0x8d,
+ 0x13, 0x00,
+ 0x14, 0x00,
+ 0x15, 0x11,
+ 0x16, 0x01,
+ 0x17, 0xda,
+ 0x18, 0x40,
+ 0x19, 0x80,
+ 0x1a, 0x00,
+ 0x1b, 0x42,
+ 0x1c, 0xa9,
+ 0x30, 0x66,
+ 0x31, 0x90,
+ 0x32, 0x01,
+ 0x34, 0x00,
+ 0x35, 0x00,
+ 0x36, 0x20,
+ 0x38, 0x03,
+ 0x39, 0x20,
+ 0x3a, 0x88,
+ 0x40, 0x00,
+ 0x41, 0xff,
+ 0x42, 0xff,
+ 0x43, 0xff,
+ 0x44, 0xff,
+ 0x45, 0xff,
+ 0x46, 0xff,
+ 0x47, 0xff,
+ 0x48, 0xff,
+ 0x49, 0xff,
+ 0x4a, 0xff,
+ 0x4b, 0xff,
+ 0x4c, 0xff,
+ 0x4d, 0xff,
+ 0x4e, 0xff,
+ 0x4f, 0xff,
+ 0x50, 0xff,
+ 0x51, 0xff,
+ 0x52, 0xff,
+ 0x53, 0xff,
+ 0x54, 0xf4 /*0xff*/,
+ 0x55, 0xff,
+ 0x56, 0xff,
+ 0x57, 0xff,
+ 0x58, 0x40,
+ 0x59, 0x47,
+ 0x5a, 0x06 /*0x03*/,
+ 0x5b, 0x83,
+ 0x5d, 0x06,
+ 0x5e, 0x00,
+ 0x80, 0x30, /* window defined scaler operation, task A and B enabled */
+ 0x81, 0x03, /* use scaler datapath generated V */
+ 0x83, 0x00,
+ 0x84, 0x00,
+ 0x85, 0x00,
+ 0x86, 0x45,
+ 0x87, 0x31,
+ 0x88, 0xc0,
+ 0x90, 0x02, /* task A process top field */
+ 0x91, 0x08,
+ 0x92, 0x09,
+ 0x93, 0x80,
+ 0x94, 0x06,
+ 0x95, 0x00,
+ 0x96, 0xc0,
+ 0x97, 0x02,
+ 0x98, 0x12,
+ 0x99, 0x00,
+ 0x9a, 0xf2,
+ 0x9b, 0x00,
+ 0x9c, 0xd0,
+ 0x9d, 0x02,
+ 0x9e, 0xf2,
+ 0x9f, 0x00,
+ 0xa0, 0x01,
+ 0xa1, 0x01,
+ 0xa2, 0x01,
+ 0xa4, 0x80,
+ 0xa5, 0x40,
+ 0xa6, 0x40,
+ 0xa8, 0x00,
+ 0xa9, 0x04,
+ 0xaa, 0x00,
+ 0xac, 0x00,
+ 0xad, 0x02,
+ 0xae, 0x00,
+ 0xb0, 0x00,
+ 0xb1, 0x04,
+ 0xb2, 0x00,
+ 0xb3, 0x04,
+ 0xb4, 0x00,
+ 0xb8, 0x00,
+ 0xbc, 0x00,
+ 0xc0, 0x03, /* task B process bottom field */
+ 0xc1, 0x08,
+ 0xc2, 0x09,
+ 0xc3, 0x80,
+ 0xc4, 0x06,
+ 0xc5, 0x00,
+ 0xc6, 0xc0,
+ 0xc7, 0x02,
+ 0xc8, 0x12,
+ 0xc9, 0x00,
+ 0xca, 0xf2,
+ 0xcb, 0x00,
+ 0xcc, 0xd0,
+ 0xcd, 0x02,
+ 0xce, 0xf2,
+ 0xcf, 0x00,
+ 0xd0, 0x01,
+ 0xd1, 0x01,
+ 0xd2, 0x01,
+ 0xd4, 0x80,
+ 0xd5, 0x40,
+ 0xd6, 0x40,
+ 0xd8, 0x00,
+ 0xd9, 0x04,
+ 0xda, 0x00,
+ 0xdc, 0x00,
+ 0xdd, 0x02,
+ 0xde, 0x00,
+ 0xe0, 0x00,
+ 0xe1, 0x04,
+ 0xe2, 0x00,
+ 0xe3, 0x04,
+ 0xe4, 0x00,
+ 0xe8, 0x00,
+ 0x88, 0xf0, /* End of original static list */
+ 0x00, 0x00, /* Terminator (reg 0x00 is read-only) */
+};
+
+static int write_reg(struct i2c_client *client, u8 reg, u8 value)
+{
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int write_regs(struct i2c_client *client, u8 *regs)
+{
+ int i;
+
+ for (i = 0; regs[i] != 0x00; i += 2)
+ if (i2c_smbus_write_byte_data(client, regs[i], regs[i + 1]) < 0)
+ return -1;
+ return 0;
+}
+
+static int wis_saa7115_command(struct i2c_client *client,
+ unsigned int cmd, void *arg)
+{
+ struct wis_saa7115 *dec = i2c_get_clientdata(client);
+
+ switch (cmd) {
+ case VIDIOC_S_INPUT:
+ {
+ int *input = arg;
+
+ i2c_smbus_write_byte_data(client, 0x02, 0xC0 | *input);
+ i2c_smbus_write_byte_data(client, 0x09,
+ *input < 6 ? 0x40 : 0xC0);
+ break;
+ }
+ case DECODER_SET_RESOLUTION:
+ {
+ struct video_decoder_resolution *res = arg;
+ /* Course-grained scaler */
+ int h_integer_scaler = res->width < 704 ? 704 / res->width : 1;
+ /* Fine-grained scaler to take care of remainder */
+ int h_scaling_increment = (704 / h_integer_scaler) *
+ 1024 / res->width;
+ /* Fine-grained scaler only */
+ int v_scaling_increment = (dec->norm & V4L2_STD_NTSC ?
+ 240 : 288) * 1024 / res->height;
+ u8 regs[] = {
+ 0x88, 0xc0,
+ 0x9c, res->width & 0xff,
+ 0x9d, res->width >> 8,
+ 0x9e, res->height & 0xff,
+ 0x9f, res->height >> 8,
+ 0xa0, h_integer_scaler,
+ 0xa1, 1,
+ 0xa2, 1,
+ 0xa8, h_scaling_increment & 0xff,
+ 0xa9, h_scaling_increment >> 8,
+ 0xac, (h_scaling_increment / 2) & 0xff,
+ 0xad, (h_scaling_increment / 2) >> 8,
+ 0xb0, v_scaling_increment & 0xff,
+ 0xb1, v_scaling_increment >> 8,
+ 0xb2, v_scaling_increment & 0xff,
+ 0xb3, v_scaling_increment >> 8,
+ 0xcc, res->width & 0xff,
+ 0xcd, res->width >> 8,
+ 0xce, res->height & 0xff,
+ 0xcf, res->height >> 8,
+ 0xd0, h_integer_scaler,
+ 0xd1, 1,
+ 0xd2, 1,
+ 0xd8, h_scaling_increment & 0xff,
+ 0xd9, h_scaling_increment >> 8,
+ 0xdc, (h_scaling_increment / 2) & 0xff,
+ 0xdd, (h_scaling_increment / 2) >> 8,
+ 0xe0, v_scaling_increment & 0xff,
+ 0xe1, v_scaling_increment >> 8,
+ 0xe2, v_scaling_increment & 0xff,
+ 0xe3, v_scaling_increment >> 8,
+ 0x88, 0xf0,
+ 0, 0,
+ };
+ write_regs(client, regs);
+ break;
+ }
+ case VIDIOC_S_STD:
+ {
+ v4l2_std_id *input = arg;
+ u8 regs[] = {
+ 0x88, 0xc0,
+ 0x98, *input & V4L2_STD_NTSC ? 0x12 : 0x16,
+ 0x9a, *input & V4L2_STD_NTSC ? 0xf2 : 0x20,
+ 0x9b, *input & V4L2_STD_NTSC ? 0x00 : 0x01,
+ 0xc8, *input & V4L2_STD_NTSC ? 0x12 : 0x16,
+ 0xca, *input & V4L2_STD_NTSC ? 0xf2 : 0x20,
+ 0xcb, *input & V4L2_STD_NTSC ? 0x00 : 0x01,
+ 0x88, 0xf0,
+ 0x30, *input & V4L2_STD_NTSC ? 0x66 : 0x00,
+ 0x31, *input & V4L2_STD_NTSC ? 0x90 : 0xe0,
+ 0, 0,
+ };
+ write_regs(client, regs);
+ dec->norm = *input;
+ break;
+ }
+ case VIDIOC_QUERYCTRL:
+ {
+ struct v4l2_queryctrl *ctrl = arg;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+ strncpy(ctrl->name, "Brightness", sizeof(ctrl->name));
+ ctrl->minimum = 0;
+ ctrl->maximum = 255;
+ ctrl->step = 1;
+ ctrl->default_value = 128;
+ ctrl->flags = 0;
+ break;
+ case V4L2_CID_CONTRAST:
+ ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+ strncpy(ctrl->name, "Contrast", sizeof(ctrl->name));
+ ctrl->minimum = 0;
+ ctrl->maximum = 127;
+ ctrl->step = 1;
+ ctrl->default_value = 64;
+ ctrl->flags = 0;
+ break;
+ case V4L2_CID_SATURATION:
+ ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+ strncpy(ctrl->name, "Saturation", sizeof(ctrl->name));
+ ctrl->minimum = 0;
+ ctrl->maximum = 127;
+ ctrl->step = 1;
+ ctrl->default_value = 64;
+ ctrl->flags = 0;
+ break;
+ case V4L2_CID_HUE:
+ ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+ strncpy(ctrl->name, "Hue", sizeof(ctrl->name));
+ ctrl->minimum = -128;
+ ctrl->maximum = 127;
+ ctrl->step = 1;
+ ctrl->default_value = 0;
+ ctrl->flags = 0;
+ break;
+ }
+ break;
+ }
+ case VIDIOC_S_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ if (ctrl->value > 255)
+ dec->brightness = 255;
+ else if (ctrl->value < 0)
+ dec->brightness = 0;
+ else
+ dec->brightness = ctrl->value;
+ write_reg(client, 0x0a, dec->brightness);
+ break;
+ case V4L2_CID_CONTRAST:
+ if (ctrl->value > 127)
+ dec->contrast = 127;
+ else if (ctrl->value < 0)
+ dec->contrast = 0;
+ else
+ dec->contrast = ctrl->value;
+ write_reg(client, 0x0b, dec->contrast);
+ break;
+ case V4L2_CID_SATURATION:
+ if (ctrl->value > 127)
+ dec->saturation = 127;
+ else if (ctrl->value < 0)
+ dec->saturation = 0;
+ else
+ dec->saturation = ctrl->value;
+ write_reg(client, 0x0c, dec->saturation);
+ break;
+ case V4L2_CID_HUE:
+ if (ctrl->value > 127)
+ dec->hue = 127;
+ else if (ctrl->value < -128)
+ dec->hue = -128;
+ else
+ dec->hue = ctrl->value;
+ write_reg(client, 0x0d, dec->hue);
+ break;
+ }
+ break;
+ }
+ case VIDIOC_G_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ ctrl->value = dec->brightness;
+ break;
+ case V4L2_CID_CONTRAST:
+ ctrl->value = dec->contrast;
+ break;
+ case V4L2_CID_SATURATION:
+ ctrl->value = dec->saturation;
+ break;
+ case V4L2_CID_HUE:
+ ctrl->value = dec->hue;
+ break;
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ return 0;
+}
+
+static struct i2c_driver wis_saa7115_driver;
+
+static struct i2c_client wis_saa7115_client_templ = {
+ .name = "SAA7115 (WIS)",
+ .driver = &wis_saa7115_driver,
+};
+
+static int wis_saa7115_detect(struct i2c_adapter *adapter, int addr, int kind)
+{
+ struct i2c_client *client;
+ struct wis_saa7115 *dec;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return 0;
+
+ client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (client == NULL)
+ return -ENOMEM;
+ memcpy(client, &wis_saa7115_client_templ,
+ sizeof(wis_saa7115_client_templ));
+ client->adapter = adapter;
+ client->addr = addr;
+
+ dec = kmalloc(sizeof(struct wis_saa7115), GFP_KERNEL);
+ if (dec == NULL) {
+ kfree(client);
+ return -ENOMEM;
+ }
+ dec->norm = V4L2_STD_NTSC;
+ dec->brightness = 128;
+ dec->contrast = 64;
+ dec->saturation = 64;
+ dec->hue = 0;
+ i2c_set_clientdata(client, dec);
+
+ printk(KERN_DEBUG
+ "wis-saa7115: initializing SAA7115 at address %d on %s\n",
+ addr, adapter->name);
+
+ if (write_regs(client, initial_registers) < 0) {
+ printk(KERN_ERR
+ "wis-saa7115: error initializing SAA7115\n");
+ kfree(client);
+ kfree(dec);
+ return 0;
+ }
+
+ i2c_attach_client(client);
+ return 0;
+}
+
+static int wis_saa7115_detach(struct i2c_client *client)
+{
+ struct wis_saa7115 *dec = i2c_get_clientdata(client);
+ int r;
+
+ r = i2c_detach_client(client);
+ if (r < 0)
+ return r;
+
+ kfree(client);
+ kfree(dec);
+ return 0;
+}
+
+static struct i2c_driver wis_saa7115_driver = {
+ .driver = {
+ .name = "WIS SAA7115 I2C driver",
+ },
+ .id = I2C_DRIVERID_WIS_SAA7115,
+ .detach_client = wis_saa7115_detach,
+ .command = wis_saa7115_command,
+};
+
+static int __init wis_saa7115_init(void)
+{
+ int r;
+
+ r = i2c_add_driver(&wis_saa7115_driver);
+ if (r < 0)
+ return r;
+ return wis_i2c_add_driver(wis_saa7115_driver.id, wis_saa7115_detect);
+}
+
+static void __exit wis_saa7115_cleanup(void)
+{
+ wis_i2c_del_driver(wis_saa7115_detect);
+ i2c_del_driver(&wis_saa7115_driver);
+}
+
+module_init(wis_saa7115_init);
+module_exit(wis_saa7115_cleanup);
+
+MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 11:37:50 +0000