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Diffstat (limited to 'drivers/media/video/cx18/cx18-i2c.c')
-rw-r--r--drivers/media/video/cx18/cx18-i2c.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c
deleted file mode 100644
index 51609d5c88ce..000000000000
--- a/drivers/media/video/cx18/cx18-i2c.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * cx18 I2C functions
- *
- * Derived from ivtv-i2c.c
- *
- * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
- * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307 USA
- */
-
-#include "cx18-driver.h"
-#include "cx18-io.h"
-#include "cx18-cards.h"
-#include "cx18-gpio.h"
-#include "cx18-i2c.h"
-#include "cx18-irq.h"
-
-#define CX18_REG_I2C_1_WR 0xf15000
-#define CX18_REG_I2C_1_RD 0xf15008
-#define CX18_REG_I2C_2_WR 0xf25100
-#define CX18_REG_I2C_2_RD 0xf25108
-
-#define SETSCL_BIT 0x0001
-#define SETSDL_BIT 0x0002
-#define GETSCL_BIT 0x0004
-#define GETSDL_BIT 0x0008
-
-#define CX18_CS5345_I2C_ADDR 0x4c
-#define CX18_Z8F0811_IR_TX_I2C_ADDR 0x70
-#define CX18_Z8F0811_IR_RX_I2C_ADDR 0x71
-
-/* This array should match the CX18_HW_ defines */
-static const u8 hw_addrs[] = {
- 0, /* CX18_HW_TUNER */
- 0, /* CX18_HW_TVEEPROM */
- CX18_CS5345_I2C_ADDR, /* CX18_HW_CS5345 */
- 0, /* CX18_HW_DVB */
- 0, /* CX18_HW_418_AV */
- 0, /* CX18_HW_GPIO_MUX */
- 0, /* CX18_HW_GPIO_RESET_CTRL */
- CX18_Z8F0811_IR_TX_I2C_ADDR, /* CX18_HW_Z8F0811_IR_TX_HAUP */
- CX18_Z8F0811_IR_RX_I2C_ADDR, /* CX18_HW_Z8F0811_IR_RX_HAUP */
-};
-
-/* This array should match the CX18_HW_ defines */
-/* This might well become a card-specific array */
-static const u8 hw_bus[] = {
- 1, /* CX18_HW_TUNER */
- 0, /* CX18_HW_TVEEPROM */
- 0, /* CX18_HW_CS5345 */
- 0, /* CX18_HW_DVB */
- 0, /* CX18_HW_418_AV */
- 0, /* CX18_HW_GPIO_MUX */
- 0, /* CX18_HW_GPIO_RESET_CTRL */
- 0, /* CX18_HW_Z8F0811_IR_TX_HAUP */
- 0, /* CX18_HW_Z8F0811_IR_RX_HAUP */
-};
-
-/* This array should match the CX18_HW_ defines */
-static const char * const hw_devicenames[] = {
- "tuner",
- "tveeprom",
- "cs5345",
- "cx23418_DTV",
- "cx23418_AV",
- "gpio_mux",
- "gpio_reset_ctrl",
- "ir_tx_z8f0811_haup",
- "ir_rx_z8f0811_haup",
-};
-
-static int cx18_i2c_new_ir(struct cx18 *cx, struct i2c_adapter *adap, u32 hw,
- const char *type, u8 addr)
-{
- struct i2c_board_info info;
- struct IR_i2c_init_data *init_data = &cx->ir_i2c_init_data;
- unsigned short addr_list[2] = { addr, I2C_CLIENT_END };
-
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, type, I2C_NAME_SIZE);
-
- /* Our default information for ir-kbd-i2c.c to use */
- switch (hw) {
- case CX18_HW_Z8F0811_IR_RX_HAUP:
- init_data->ir_codes = RC_MAP_HAUPPAUGE;
- init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
- init_data->type = RC_TYPE_RC5;
- init_data->name = cx->card_name;
- info.platform_data = init_data;
- break;
- }
-
- return i2c_new_probed_device(adap, &info, addr_list, NULL) == NULL ?
- -1 : 0;
-}
-
-int cx18_i2c_register(struct cx18 *cx, unsigned idx)
-{
- struct v4l2_subdev *sd;
- int bus = hw_bus[idx];
- struct i2c_adapter *adap = &cx->i2c_adap[bus];
- const char *type = hw_devicenames[idx];
- u32 hw = 1 << idx;
-
- if (idx >= ARRAY_SIZE(hw_addrs))
- return -1;
-
- if (hw == CX18_HW_TUNER) {
- /* special tuner group handling */
- sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
- adap, type, 0, cx->card_i2c->radio);
- if (sd != NULL)
- sd->grp_id = hw;
- sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
- adap, type, 0, cx->card_i2c->demod);
- if (sd != NULL)
- sd->grp_id = hw;
- sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
- adap, type, 0, cx->card_i2c->tv);
- if (sd != NULL)
- sd->grp_id = hw;
- return sd != NULL ? 0 : -1;
- }
-
- if (hw & CX18_HW_IR_ANY)
- return cx18_i2c_new_ir(cx, adap, hw, type, hw_addrs[idx]);
-
- /* Is it not an I2C device or one we do not wish to register? */
- if (!hw_addrs[idx])
- return -1;
-
- /* It's an I2C device other than an analog tuner or IR chip */
- sd = v4l2_i2c_new_subdev(&cx->v4l2_dev, adap, type, hw_addrs[idx],
- NULL);
- if (sd != NULL)
- sd->grp_id = hw;
- return sd != NULL ? 0 : -1;
-}
-
-/* Find the first member of the subdev group id in hw */
-struct v4l2_subdev *cx18_find_hw(struct cx18 *cx, u32 hw)
-{
- struct v4l2_subdev *result = NULL;
- struct v4l2_subdev *sd;
-
- spin_lock(&cx->v4l2_dev.lock);
- v4l2_device_for_each_subdev(sd, &cx->v4l2_dev) {
- if (sd->grp_id == hw) {
- result = sd;
- break;
- }
- }
- spin_unlock(&cx->v4l2_dev.lock);
- return result;
-}
-
-static void cx18_setscl(void *data, int state)
-{
- struct cx18 *cx = ((struct cx18_i2c_algo_callback_data *)data)->cx;
- int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index;
- u32 addr = bus_index ? CX18_REG_I2C_2_WR : CX18_REG_I2C_1_WR;
- u32 r = cx18_read_reg(cx, addr);
-
- if (state)
- cx18_write_reg(cx, r | SETSCL_BIT, addr);
- else
- cx18_write_reg(cx, r & ~SETSCL_BIT, addr);
-}
-
-static void cx18_setsda(void *data, int state)
-{
- struct cx18 *cx = ((struct cx18_i2c_algo_callback_data *)data)->cx;
- int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index;
- u32 addr = bus_index ? CX18_REG_I2C_2_WR : CX18_REG_I2C_1_WR;
- u32 r = cx18_read_reg(cx, addr);
-
- if (state)
- cx18_write_reg(cx, r | SETSDL_BIT, addr);
- else
- cx18_write_reg(cx, r & ~SETSDL_BIT, addr);
-}
-
-static int cx18_getscl(void *data)
-{
- struct cx18 *cx = ((struct cx18_i2c_algo_callback_data *)data)->cx;
- int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index;
- u32 addr = bus_index ? CX18_REG_I2C_2_RD : CX18_REG_I2C_1_RD;
-
- return cx18_read_reg(cx, addr) & GETSCL_BIT;
-}
-
-static int cx18_getsda(void *data)
-{
- struct cx18 *cx = ((struct cx18_i2c_algo_callback_data *)data)->cx;
- int bus_index = ((struct cx18_i2c_algo_callback_data *)data)->bus_index;
- u32 addr = bus_index ? CX18_REG_I2C_2_RD : CX18_REG_I2C_1_RD;
-
- return cx18_read_reg(cx, addr) & GETSDL_BIT;
-}
-
-/* template for i2c-bit-algo */
-static struct i2c_adapter cx18_i2c_adap_template = {
- .name = "cx18 i2c driver",
- .algo = NULL, /* set by i2c-algo-bit */
- .algo_data = NULL, /* filled from template */
- .owner = THIS_MODULE,
-};
-
-#define CX18_SCL_PERIOD (10) /* usecs. 10 usec is period for a 100 KHz clock */
-#define CX18_ALGO_BIT_TIMEOUT (2) /* seconds */
-
-static struct i2c_algo_bit_data cx18_i2c_algo_template = {
- .setsda = cx18_setsda,
- .setscl = cx18_setscl,
- .getsda = cx18_getsda,
- .getscl = cx18_getscl,
- .udelay = CX18_SCL_PERIOD/2, /* 1/2 clock period in usec*/
- .timeout = CX18_ALGO_BIT_TIMEOUT*HZ /* jiffies */
-};
-
-/* init + register i2c adapter */
-int init_cx18_i2c(struct cx18 *cx)
-{
- int i, err;
- CX18_DEBUG_I2C("i2c init\n");
-
- for (i = 0; i < 2; i++) {
- /* Setup algorithm for adapter */
- memcpy(&cx->i2c_algo[i], &cx18_i2c_algo_template,
- sizeof(struct i2c_algo_bit_data));
- cx->i2c_algo_cb_data[i].cx = cx;
- cx->i2c_algo_cb_data[i].bus_index = i;
- cx->i2c_algo[i].data = &cx->i2c_algo_cb_data[i];
-
- /* Setup adapter */
- memcpy(&cx->i2c_adap[i], &cx18_i2c_adap_template,
- sizeof(struct i2c_adapter));
- cx->i2c_adap[i].algo_data = &cx->i2c_algo[i];
- sprintf(cx->i2c_adap[i].name + strlen(cx->i2c_adap[i].name),
- " #%d-%d", cx->instance, i);
- i2c_set_adapdata(&cx->i2c_adap[i], &cx->v4l2_dev);
- cx->i2c_adap[i].dev.parent = &cx->pci_dev->dev;
- }
-
- if (cx18_read_reg(cx, CX18_REG_I2C_2_WR) != 0x0003c02f) {
- /* Reset/Unreset I2C hardware block */
- /* Clock select 220MHz */
- cx18_write_reg_expect(cx, 0x10000000, 0xc71004,
- 0x00000000, 0x10001000);
- /* Clock Enable */
- cx18_write_reg_expect(cx, 0x10001000, 0xc71024,
- 0x00001000, 0x10001000);
- }
- /* courtesy of Steven Toth <stoth@hauppauge.com> */
- cx18_write_reg_expect(cx, 0x00c00000, 0xc7001c, 0x00000000, 0x00c000c0);
- mdelay(10);
- cx18_write_reg_expect(cx, 0x00c000c0, 0xc7001c, 0x000000c0, 0x00c000c0);
- mdelay(10);
- cx18_write_reg_expect(cx, 0x00c00000, 0xc7001c, 0x00000000, 0x00c000c0);
- mdelay(10);
-
- /* Set to edge-triggered intrs. */
- cx18_write_reg(cx, 0x00c00000, 0xc730c8);
- /* Clear any stale intrs */
- cx18_write_reg_expect(cx, HW2_I2C1_INT|HW2_I2C2_INT, HW2_INT_CLR_STATUS,
- ~(HW2_I2C1_INT|HW2_I2C2_INT), HW2_I2C1_INT|HW2_I2C2_INT);
-
- /* Hw I2C1 Clock Freq ~100kHz */
- cx18_write_reg(cx, 0x00021c0f & ~4, CX18_REG_I2C_1_WR);
- cx18_setscl(&cx->i2c_algo_cb_data[0], 1);
- cx18_setsda(&cx->i2c_algo_cb_data[0], 1);
-
- /* Hw I2C2 Clock Freq ~100kHz */
- cx18_write_reg(cx, 0x00021c0f & ~4, CX18_REG_I2C_2_WR);
- cx18_setscl(&cx->i2c_algo_cb_data[1], 1);
- cx18_setsda(&cx->i2c_algo_cb_data[1], 1);
-
- cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL,
- core, reset, (u32) CX18_GPIO_RESET_I2C);
-
- err = i2c_bit_add_bus(&cx->i2c_adap[0]);
- if (err)
- goto err;
- err = i2c_bit_add_bus(&cx->i2c_adap[1]);
- if (err)
- goto err_del_bus_0;
- return 0;
-
- err_del_bus_0:
- i2c_del_adapter(&cx->i2c_adap[0]);
- err:
- return err;
-}
-
-void exit_cx18_i2c(struct cx18 *cx)
-{
- int i;
- CX18_DEBUG_I2C("i2c exit\n");
- cx18_write_reg(cx, cx18_read_reg(cx, CX18_REG_I2C_1_WR) | 4,
- CX18_REG_I2C_1_WR);
- cx18_write_reg(cx, cx18_read_reg(cx, CX18_REG_I2C_2_WR) | 4,
- CX18_REG_I2C_2_WR);
-
- for (i = 0; i < 2; i++) {
- i2c_del_adapter(&cx->i2c_adap[i]);
- }
-}
-
-/*
- Hauppauge HVR1600 should have:
- 32 cx24227
- 98 unknown
- a0 eeprom
- c2 tuner
- e? zilog ir
- */
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