749 lines
18 KiB
C
749 lines
18 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Sony CXD2820R demodulator driver
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*
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* Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
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*/
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#include "cxd2820r_priv.h"
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/* Write register table */
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int cxd2820r_wr_reg_val_mask_tab(struct cxd2820r_priv *priv,
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const struct reg_val_mask *tab, int tab_len)
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{
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struct i2c_client *client = priv->client[0];
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int ret;
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unsigned int i, reg, mask, val;
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struct regmap *regmap;
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dev_dbg(&client->dev, "tab_len=%d\n", tab_len);
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for (i = 0; i < tab_len; i++) {
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if ((tab[i].reg >> 16) & 0x1)
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regmap = priv->regmap[1];
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else
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regmap = priv->regmap[0];
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reg = (tab[i].reg >> 0) & 0xffff;
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val = tab[i].val;
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mask = tab[i].mask;
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if (mask == 0xff)
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ret = regmap_write(regmap, reg, val);
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else
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ret = regmap_write_bits(regmap, reg, mask, val);
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if (ret)
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goto error;
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}
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return 0;
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error:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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int cxd2820r_gpio(struct dvb_frontend *fe, u8 *gpio)
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{
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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struct i2c_client *client = priv->client[0];
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int ret, i;
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u8 tmp0, tmp1;
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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/* update GPIOs only when needed */
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if (!memcmp(gpio, priv->gpio, sizeof(priv->gpio)))
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return 0;
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tmp0 = 0x00;
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tmp1 = 0x00;
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for (i = 0; i < sizeof(priv->gpio); i++) {
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/* enable / disable */
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if (gpio[i] & CXD2820R_GPIO_E)
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tmp0 |= (2 << 6) >> (2 * i);
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else
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tmp0 |= (1 << 6) >> (2 * i);
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/* input / output */
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if (gpio[i] & CXD2820R_GPIO_I)
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tmp1 |= (1 << (3 + i));
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else
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tmp1 |= (0 << (3 + i));
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/* high / low */
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if (gpio[i] & CXD2820R_GPIO_H)
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tmp1 |= (1 << (0 + i));
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else
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tmp1 |= (0 << (0 + i));
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dev_dbg(&client->dev, "gpio i=%d %02x %02x\n", i, tmp0, tmp1);
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}
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dev_dbg(&client->dev, "wr gpio=%02x %02x\n", tmp0, tmp1);
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/* write bits [7:2] */
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ret = regmap_update_bits(priv->regmap[0], 0x0089, 0xfc, tmp0);
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if (ret)
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goto error;
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/* write bits [5:0] */
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ret = regmap_update_bits(priv->regmap[0], 0x008e, 0x3f, tmp1);
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if (ret)
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goto error;
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memcpy(priv->gpio, gpio, sizeof(priv->gpio));
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return ret;
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error:
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dev_dbg(&client->dev, "failed=%d\n", ret);
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return ret;
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}
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static int cxd2820r_set_frontend(struct dvb_frontend *fe)
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{
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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struct i2c_client *client = priv->client[0];
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int ret;
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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switch (c->delivery_system) {
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case SYS_DVBT:
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ret = cxd2820r_init_t(fe);
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if (ret < 0)
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goto err;
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ret = cxd2820r_set_frontend_t(fe);
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if (ret < 0)
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goto err;
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break;
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case SYS_DVBT2:
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ret = cxd2820r_init_t(fe);
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if (ret < 0)
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goto err;
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ret = cxd2820r_set_frontend_t2(fe);
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if (ret < 0)
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goto err;
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break;
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case SYS_DVBC_ANNEX_A:
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ret = cxd2820r_init_c(fe);
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if (ret < 0)
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goto err;
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ret = cxd2820r_set_frontend_c(fe);
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if (ret < 0)
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goto err;
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break;
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default:
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dev_dbg(&client->dev, "invalid delivery_system\n");
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ret = -EINVAL;
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break;
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}
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err:
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return ret;
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}
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static int cxd2820r_read_status(struct dvb_frontend *fe, enum fe_status *status)
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{
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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struct i2c_client *client = priv->client[0];
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int ret;
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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switch (c->delivery_system) {
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case SYS_DVBT:
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ret = cxd2820r_read_status_t(fe, status);
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break;
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case SYS_DVBT2:
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ret = cxd2820r_read_status_t2(fe, status);
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break;
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case SYS_DVBC_ANNEX_A:
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ret = cxd2820r_read_status_c(fe, status);
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static int cxd2820r_get_frontend(struct dvb_frontend *fe,
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struct dtv_frontend_properties *p)
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{
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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struct i2c_client *client = priv->client[0];
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int ret;
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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if (priv->delivery_system == SYS_UNDEFINED)
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return 0;
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switch (c->delivery_system) {
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case SYS_DVBT:
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ret = cxd2820r_get_frontend_t(fe, p);
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break;
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case SYS_DVBT2:
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ret = cxd2820r_get_frontend_t2(fe, p);
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break;
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case SYS_DVBC_ANNEX_A:
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ret = cxd2820r_get_frontend_c(fe, p);
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static int cxd2820r_read_ber(struct dvb_frontend *fe, u32 *ber)
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{
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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struct i2c_client *client = priv->client[0];
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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*ber = (priv->post_bit_error - priv->post_bit_error_prev_dvbv3);
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priv->post_bit_error_prev_dvbv3 = priv->post_bit_error;
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return 0;
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}
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static int cxd2820r_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
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{
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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struct i2c_client *client = priv->client[0];
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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if (c->strength.stat[0].scale == FE_SCALE_RELATIVE)
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*strength = c->strength.stat[0].uvalue;
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else
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*strength = 0;
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return 0;
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}
|
||
|
|
|
||
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static int cxd2820r_read_snr(struct dvb_frontend *fe, u16 *snr)
|
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|
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{
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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struct i2c_client *client = priv->client[0];
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
|
||
|
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*snr = div_s64(c->cnr.stat[0].svalue, 100);
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||
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else
|
||
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*snr = 0;
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||
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|
||
|
|
return 0;
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||
|
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}
|
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|
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|
||
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static int cxd2820r_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
|
||
|
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{
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||
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struct cxd2820r_priv *priv = fe->demodulator_priv;
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||
|
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struct i2c_client *client = priv->client[0];
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||
|
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
||
|
|
|
||
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
|
||
|
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|
||
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*ucblocks = 0;
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||
|
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|
||
|
|
return 0;
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||
|
|
}
|
||
|
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|
||
|
|
static int cxd2820r_init(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cxd2820r_sleep(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = fe->demodulator_priv;
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||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
||
|
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int ret;
|
||
|
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|
||
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dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
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||
|
|
|
||
|
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switch (c->delivery_system) {
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||
|
|
case SYS_DVBT:
|
||
|
|
ret = cxd2820r_sleep_t(fe);
|
||
|
|
break;
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||
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|
case SYS_DVBT2:
|
||
|
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ret = cxd2820r_sleep_t2(fe);
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||
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break;
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||
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case SYS_DVBC_ANNEX_A:
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||
|
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ret = cxd2820r_sleep_c(fe);
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||
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|
break;
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||
|
|
default:
|
||
|
|
ret = -EINVAL;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cxd2820r_get_tune_settings(struct dvb_frontend *fe,
|
||
|
|
struct dvb_frontend_tune_settings *s)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = fe->demodulator_priv;
|
||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
|
||
|
|
|
||
|
|
switch (c->delivery_system) {
|
||
|
|
case SYS_DVBT:
|
||
|
|
ret = cxd2820r_get_tune_settings_t(fe, s);
|
||
|
|
break;
|
||
|
|
case SYS_DVBT2:
|
||
|
|
ret = cxd2820r_get_tune_settings_t2(fe, s);
|
||
|
|
break;
|
||
|
|
case SYS_DVBC_ANNEX_A:
|
||
|
|
ret = cxd2820r_get_tune_settings_c(fe, s);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
ret = -EINVAL;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static enum dvbfe_search cxd2820r_search(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = fe->demodulator_priv;
|
||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
||
|
|
int ret, i;
|
||
|
|
enum fe_status status = 0;
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
|
||
|
|
|
||
|
|
/* switch between DVB-T and DVB-T2 when tune fails */
|
||
|
|
if (priv->last_tune_failed) {
|
||
|
|
if (priv->delivery_system == SYS_DVBT) {
|
||
|
|
ret = cxd2820r_sleep_t(fe);
|
||
|
|
if (ret)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
c->delivery_system = SYS_DVBT2;
|
||
|
|
} else if (priv->delivery_system == SYS_DVBT2) {
|
||
|
|
ret = cxd2820r_sleep_t2(fe);
|
||
|
|
if (ret)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
c->delivery_system = SYS_DVBT;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set frontend */
|
||
|
|
ret = cxd2820r_set_frontend(fe);
|
||
|
|
if (ret)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
/* frontend lock wait loop count */
|
||
|
|
switch (priv->delivery_system) {
|
||
|
|
case SYS_DVBT:
|
||
|
|
case SYS_DVBC_ANNEX_A:
|
||
|
|
i = 20;
|
||
|
|
break;
|
||
|
|
case SYS_DVBT2:
|
||
|
|
i = 40;
|
||
|
|
break;
|
||
|
|
case SYS_UNDEFINED:
|
||
|
|
default:
|
||
|
|
i = 0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* wait frontend lock */
|
||
|
|
for (; i > 0; i--) {
|
||
|
|
dev_dbg(&client->dev, "loop=%d\n", i);
|
||
|
|
msleep(50);
|
||
|
|
ret = cxd2820r_read_status(fe, &status);
|
||
|
|
if (ret)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
if (status & FE_HAS_LOCK)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check if we have a valid signal */
|
||
|
|
if (status & FE_HAS_LOCK) {
|
||
|
|
priv->last_tune_failed = false;
|
||
|
|
return DVBFE_ALGO_SEARCH_SUCCESS;
|
||
|
|
} else {
|
||
|
|
priv->last_tune_failed = true;
|
||
|
|
return DVBFE_ALGO_SEARCH_AGAIN;
|
||
|
|
}
|
||
|
|
|
||
|
|
error:
|
||
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
||
|
|
return DVBFE_ALGO_SEARCH_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
static enum dvbfe_algo cxd2820r_get_frontend_algo(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
return DVBFE_ALGO_CUSTOM;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void cxd2820r_release(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = fe->demodulator_priv;
|
||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "\n");
|
||
|
|
|
||
|
|
i2c_unregister_device(client);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cxd2820r_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = fe->demodulator_priv;
|
||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
|
||
|
|
dev_dbg_ratelimited(&client->dev, "enable=%d\n", enable);
|
||
|
|
|
||
|
|
return regmap_update_bits(priv->regmap[0], 0x00db, 0x01, enable ? 1 : 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_GPIOLIB
|
||
|
|
static int cxd2820r_gpio_direction_output(struct gpio_chip *chip, unsigned nr,
|
||
|
|
int val)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
|
||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
u8 gpio[GPIO_COUNT];
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val);
|
||
|
|
|
||
|
|
memcpy(gpio, priv->gpio, sizeof(gpio));
|
||
|
|
gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
|
||
|
|
|
||
|
|
return cxd2820r_gpio(&priv->fe, gpio);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void cxd2820r_gpio_set(struct gpio_chip *chip, unsigned nr, int val)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
|
||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
u8 gpio[GPIO_COUNT];
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val);
|
||
|
|
|
||
|
|
memcpy(gpio, priv->gpio, sizeof(gpio));
|
||
|
|
gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
|
||
|
|
|
||
|
|
(void) cxd2820r_gpio(&priv->fe, gpio);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cxd2820r_gpio_get(struct gpio_chip *chip, unsigned nr)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
|
||
|
|
struct i2c_client *client = priv->client[0];
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "nr=%u\n", nr);
|
||
|
|
|
||
|
|
return (priv->gpio[nr] >> 2) & 0x01;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static const struct dvb_frontend_ops cxd2820r_ops = {
|
||
|
|
.delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
|
||
|
|
/* default: DVB-T/T2 */
|
||
|
|
.info = {
|
||
|
|
.name = "Sony CXD2820R",
|
||
|
|
|
||
|
|
.caps = FE_CAN_FEC_1_2 |
|
||
|
|
FE_CAN_FEC_2_3 |
|
||
|
|
FE_CAN_FEC_3_4 |
|
||
|
|
FE_CAN_FEC_5_6 |
|
||
|
|
FE_CAN_FEC_7_8 |
|
||
|
|
FE_CAN_FEC_AUTO |
|
||
|
|
FE_CAN_QPSK |
|
||
|
|
FE_CAN_QAM_16 |
|
||
|
|
FE_CAN_QAM_32 |
|
||
|
|
FE_CAN_QAM_64 |
|
||
|
|
FE_CAN_QAM_128 |
|
||
|
|
FE_CAN_QAM_256 |
|
||
|
|
FE_CAN_QAM_AUTO |
|
||
|
|
FE_CAN_TRANSMISSION_MODE_AUTO |
|
||
|
|
FE_CAN_GUARD_INTERVAL_AUTO |
|
||
|
|
FE_CAN_HIERARCHY_AUTO |
|
||
|
|
FE_CAN_MUTE_TS |
|
||
|
|
FE_CAN_2G_MODULATION |
|
||
|
|
FE_CAN_MULTISTREAM
|
||
|
|
},
|
||
|
|
|
||
|
|
.release = cxd2820r_release,
|
||
|
|
.init = cxd2820r_init,
|
||
|
|
.sleep = cxd2820r_sleep,
|
||
|
|
|
||
|
|
.get_tune_settings = cxd2820r_get_tune_settings,
|
||
|
|
.i2c_gate_ctrl = cxd2820r_i2c_gate_ctrl,
|
||
|
|
|
||
|
|
.get_frontend = cxd2820r_get_frontend,
|
||
|
|
|
||
|
|
.get_frontend_algo = cxd2820r_get_frontend_algo,
|
||
|
|
.search = cxd2820r_search,
|
||
|
|
|
||
|
|
.read_status = cxd2820r_read_status,
|
||
|
|
.read_snr = cxd2820r_read_snr,
|
||
|
|
.read_ber = cxd2820r_read_ber,
|
||
|
|
.read_ucblocks = cxd2820r_read_ucblocks,
|
||
|
|
.read_signal_strength = cxd2820r_read_signal_strength,
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* XXX: That is wrapper to cxd2820r_probe() via driver core in order to provide
|
||
|
|
* proper I2C client for legacy media attach binding.
|
||
|
|
* New users must use I2C client binding directly!
|
||
|
|
*/
|
||
|
|
struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *config,
|
||
|
|
struct i2c_adapter *adapter,
|
||
|
|
int *gpio_chip_base)
|
||
|
|
{
|
||
|
|
struct i2c_client *client;
|
||
|
|
struct i2c_board_info board_info;
|
||
|
|
struct cxd2820r_platform_data pdata;
|
||
|
|
|
||
|
|
pdata.ts_mode = config->ts_mode;
|
||
|
|
pdata.ts_clk_inv = config->ts_clock_inv;
|
||
|
|
pdata.if_agc_polarity = config->if_agc_polarity;
|
||
|
|
pdata.spec_inv = config->spec_inv;
|
||
|
|
pdata.gpio_chip_base = &gpio_chip_base;
|
||
|
|
pdata.attach_in_use = true;
|
||
|
|
|
||
|
|
memset(&board_info, 0, sizeof(board_info));
|
||
|
|
strscpy(board_info.type, "cxd2820r", I2C_NAME_SIZE);
|
||
|
|
board_info.addr = config->i2c_address;
|
||
|
|
board_info.platform_data = &pdata;
|
||
|
|
client = i2c_new_device(adapter, &board_info);
|
||
|
|
if (!client || !client->dev.driver)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
return pdata.get_dvb_frontend(client);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(cxd2820r_attach);
|
||
|
|
|
||
|
|
static struct dvb_frontend *cxd2820r_get_dvb_frontend(struct i2c_client *client)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = i2c_get_clientdata(client);
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "\n");
|
||
|
|
|
||
|
|
return &priv->fe;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cxd2820r_probe(struct i2c_client *client,
|
||
|
|
const struct i2c_device_id *id)
|
||
|
|
{
|
||
|
|
struct cxd2820r_platform_data *pdata = client->dev.platform_data;
|
||
|
|
struct cxd2820r_priv *priv;
|
||
|
|
int ret, *gpio_chip_base;
|
||
|
|
unsigned int utmp;
|
||
|
|
static const struct regmap_range_cfg regmap_range_cfg0[] = {
|
||
|
|
{
|
||
|
|
.range_min = 0x0000,
|
||
|
|
.range_max = 0x3fff,
|
||
|
|
.selector_reg = 0x00,
|
||
|
|
.selector_mask = 0xff,
|
||
|
|
.selector_shift = 0,
|
||
|
|
.window_start = 0x00,
|
||
|
|
.window_len = 0x100,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
static const struct regmap_range_cfg regmap_range_cfg1[] = {
|
||
|
|
{
|
||
|
|
.range_min = 0x0000,
|
||
|
|
.range_max = 0x01ff,
|
||
|
|
.selector_reg = 0x00,
|
||
|
|
.selector_mask = 0xff,
|
||
|
|
.selector_shift = 0,
|
||
|
|
.window_start = 0x00,
|
||
|
|
.window_len = 0x100,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
static const struct regmap_config regmap_config0 = {
|
||
|
|
.reg_bits = 8,
|
||
|
|
.val_bits = 8,
|
||
|
|
.max_register = 0x3fff,
|
||
|
|
.ranges = regmap_range_cfg0,
|
||
|
|
.num_ranges = ARRAY_SIZE(regmap_range_cfg0),
|
||
|
|
.cache_type = REGCACHE_NONE,
|
||
|
|
};
|
||
|
|
static const struct regmap_config regmap_config1 = {
|
||
|
|
.reg_bits = 8,
|
||
|
|
.val_bits = 8,
|
||
|
|
.max_register = 0x01ff,
|
||
|
|
.ranges = regmap_range_cfg1,
|
||
|
|
.num_ranges = ARRAY_SIZE(regmap_range_cfg1),
|
||
|
|
.cache_type = REGCACHE_NONE,
|
||
|
|
};
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "\n");
|
||
|
|
|
||
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
||
|
|
if (!priv) {
|
||
|
|
ret = -ENOMEM;
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
|
||
|
|
priv->client[0] = client;
|
||
|
|
priv->fe.demodulator_priv = priv;
|
||
|
|
priv->i2c = client->adapter;
|
||
|
|
priv->ts_mode = pdata->ts_mode;
|
||
|
|
priv->ts_clk_inv = pdata->ts_clk_inv;
|
||
|
|
priv->if_agc_polarity = pdata->if_agc_polarity;
|
||
|
|
priv->spec_inv = pdata->spec_inv;
|
||
|
|
gpio_chip_base = *pdata->gpio_chip_base;
|
||
|
|
priv->regmap[0] = regmap_init_i2c(priv->client[0], ®map_config0);
|
||
|
|
if (IS_ERR(priv->regmap[0])) {
|
||
|
|
ret = PTR_ERR(priv->regmap[0]);
|
||
|
|
goto err_kfree;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check demod answers with correct chip id */
|
||
|
|
ret = regmap_read(priv->regmap[0], 0x00fd, &utmp);
|
||
|
|
if (ret)
|
||
|
|
goto err_regmap_0_regmap_exit;
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "chip_id=%02x\n", utmp);
|
||
|
|
|
||
|
|
if (utmp != 0xe1) {
|
||
|
|
ret = -ENODEV;
|
||
|
|
goto err_regmap_0_regmap_exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Chip has two I2C addresses for different register banks. We register
|
||
|
|
* one dummy I2C client in in order to get own I2C client for each
|
||
|
|
* register bank.
|
||
|
|
*/
|
||
|
|
priv->client[1] = i2c_new_dummy_device(client->adapter, client->addr | (1 << 1));
|
||
|
|
if (IS_ERR(priv->client[1])) {
|
||
|
|
ret = PTR_ERR(priv->client[1]);
|
||
|
|
dev_err(&client->dev, "I2C registration failed\n");
|
||
|
|
goto err_regmap_0_regmap_exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
priv->regmap[1] = regmap_init_i2c(priv->client[1], ®map_config1);
|
||
|
|
if (IS_ERR(priv->regmap[1])) {
|
||
|
|
ret = PTR_ERR(priv->regmap[1]);
|
||
|
|
goto err_client_1_i2c_unregister_device;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (gpio_chip_base) {
|
||
|
|
#ifdef CONFIG_GPIOLIB
|
||
|
|
/* Add GPIOs */
|
||
|
|
priv->gpio_chip.label = KBUILD_MODNAME;
|
||
|
|
priv->gpio_chip.parent = &client->dev;
|
||
|
|
priv->gpio_chip.owner = THIS_MODULE;
|
||
|
|
priv->gpio_chip.direction_output = cxd2820r_gpio_direction_output;
|
||
|
|
priv->gpio_chip.set = cxd2820r_gpio_set;
|
||
|
|
priv->gpio_chip.get = cxd2820r_gpio_get;
|
||
|
|
priv->gpio_chip.base = -1; /* Dynamic allocation */
|
||
|
|
priv->gpio_chip.ngpio = GPIO_COUNT;
|
||
|
|
priv->gpio_chip.can_sleep = 1;
|
||
|
|
ret = gpiochip_add_data(&priv->gpio_chip, priv);
|
||
|
|
if (ret)
|
||
|
|
goto err_regmap_1_regmap_exit;
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "gpio_chip.base=%d\n",
|
||
|
|
priv->gpio_chip.base);
|
||
|
|
|
||
|
|
*gpio_chip_base = priv->gpio_chip.base;
|
||
|
|
#else
|
||
|
|
/*
|
||
|
|
* Use static GPIO configuration if GPIOLIB is undefined.
|
||
|
|
* This is fallback condition.
|
||
|
|
*/
|
||
|
|
u8 gpio[GPIO_COUNT];
|
||
|
|
gpio[0] = (*gpio_chip_base >> 0) & 0x07;
|
||
|
|
gpio[1] = (*gpio_chip_base >> 3) & 0x07;
|
||
|
|
gpio[2] = 0;
|
||
|
|
ret = cxd2820r_gpio(&priv->fe, gpio);
|
||
|
|
if (ret)
|
||
|
|
goto err_regmap_1_regmap_exit;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Create dvb frontend */
|
||
|
|
memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(priv->fe.ops));
|
||
|
|
if (!pdata->attach_in_use)
|
||
|
|
priv->fe.ops.release = NULL;
|
||
|
|
i2c_set_clientdata(client, priv);
|
||
|
|
|
||
|
|
/* Setup callbacks */
|
||
|
|
pdata->get_dvb_frontend = cxd2820r_get_dvb_frontend;
|
||
|
|
|
||
|
|
dev_info(&client->dev, "Sony CXD2820R successfully identified\n");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
err_regmap_1_regmap_exit:
|
||
|
|
regmap_exit(priv->regmap[1]);
|
||
|
|
err_client_1_i2c_unregister_device:
|
||
|
|
i2c_unregister_device(priv->client[1]);
|
||
|
|
err_regmap_0_regmap_exit:
|
||
|
|
regmap_exit(priv->regmap[0]);
|
||
|
|
err_kfree:
|
||
|
|
kfree(priv);
|
||
|
|
err:
|
||
|
|
dev_dbg(&client->dev, "failed=%d\n", ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cxd2820r_remove(struct i2c_client *client)
|
||
|
|
{
|
||
|
|
struct cxd2820r_priv *priv = i2c_get_clientdata(client);
|
||
|
|
|
||
|
|
dev_dbg(&client->dev, "\n");
|
||
|
|
|
||
|
|
#ifdef CONFIG_GPIOLIB
|
||
|
|
if (priv->gpio_chip.label)
|
||
|
|
gpiochip_remove(&priv->gpio_chip);
|
||
|
|
#endif
|
||
|
|
regmap_exit(priv->regmap[1]);
|
||
|
|
i2c_unregister_device(priv->client[1]);
|
||
|
|
|
||
|
|
regmap_exit(priv->regmap[0]);
|
||
|
|
|
||
|
|
kfree(priv);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct i2c_device_id cxd2820r_id_table[] = {
|
||
|
|
{"cxd2820r", 0},
|
||
|
|
{}
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(i2c, cxd2820r_id_table);
|
||
|
|
|
||
|
|
static struct i2c_driver cxd2820r_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "cxd2820r",
|
||
|
|
.suppress_bind_attrs = true,
|
||
|
|
},
|
||
|
|
.probe = cxd2820r_probe,
|
||
|
|
.remove = cxd2820r_remove,
|
||
|
|
.id_table = cxd2820r_id_table,
|
||
|
|
};
|
||
|
|
|
||
|
|
module_i2c_driver(cxd2820r_driver);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
|
||
|
|
MODULE_DESCRIPTION("Sony CXD2820R demodulator driver");
|
||
|
|
MODULE_LICENSE("GPL");
|