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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/media/dvb-frontends/cxd2820r.h
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/dvb-frontends/cxd2820r.h')
-rw-r--r--drivers/media/dvb-frontends/cxd2820r.h141
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/cxd2820r.h b/drivers/media/dvb-frontends/cxd2820r.h
new file mode 100644
index 000000000..a49400c0e
--- /dev/null
+++ b/drivers/media/dvb-frontends/cxd2820r.h
@@ -0,0 +1,141 @@
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+
+#ifndef CXD2820R_H
+#define CXD2820R_H
+
+#include <linux/dvb/frontend.h>
+
+#define CXD2820R_GPIO_D (0 << 0) /* disable */
+#define CXD2820R_GPIO_E (1 << 0) /* enable */
+#define CXD2820R_GPIO_O (0 << 1) /* output */
+#define CXD2820R_GPIO_I (1 << 1) /* input */
+#define CXD2820R_GPIO_L (0 << 2) /* output low */
+#define CXD2820R_GPIO_H (1 << 2) /* output high */
+
+#define CXD2820R_TS_SERIAL 0x08
+#define CXD2820R_TS_SERIAL_MSB 0x28
+#define CXD2820R_TS_PARALLEL 0x30
+#define CXD2820R_TS_PARALLEL_MSB 0x70
+
+/*
+ * I2C address: 0x6c, 0x6d
+ */
+
+/**
+ * struct cxd2820r_platform_data - Platform data for the cxd2820r driver
+ * @ts_mode: TS mode.
+ * @ts_clk_inv: TS clock inverted.
+ * @if_agc_polarity: IF AGC polarity.
+ * @spec_inv: Input spectrum inverted.
+ * @gpio_chip_base: GPIO.
+ * @get_dvb_frontend: Get DVB frontend.
+ */
+struct cxd2820r_platform_data {
+ u8 ts_mode;
+ bool ts_clk_inv;
+ bool if_agc_polarity;
+ bool spec_inv;
+ int **gpio_chip_base;
+
+ struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
+/* private: For legacy media attach wrapper. Do not set value. */
+ bool attach_in_use;
+};
+
+/**
+ * struct cxd2820r_config - configuration for cxd2020r demod
+ *
+ * @i2c_address: Demodulator I2C address. Driver determines DVB-C slave I2C
+ * address automatically from master address.
+ * Default: none, must set. Values: 0x6c, 0x6d.
+ * @ts_mode: TS output mode. Default: none, must set. Values: FIXME?
+ * @ts_clock_inv: TS clock inverted. Default: 0. Values: 0, 1.
+ * @if_agc_polarity: Default: 0. Values: 0, 1
+ * @spec_inv: Spectrum inversion. Default: 0. Values: 0, 1.
+ */
+struct cxd2820r_config {
+ /* Demodulator I2C address.
+ * Driver determines DVB-C slave I2C address automatically from master
+ * address.
+ * Default: none, must set
+ * Values: 0x6c, 0x6d
+ */
+ u8 i2c_address;
+
+ /* TS output mode.
+ * Default: none, must set.
+ * Values:
+ */
+ u8 ts_mode;
+
+ /* TS clock inverted.
+ * Default: 0
+ * Values: 0, 1
+ */
+ bool ts_clock_inv;
+
+ /* IF AGC polarity.
+ * Default: 0
+ * Values: 0, 1
+ */
+ bool if_agc_polarity;
+
+ /* Spectrum inversion.
+ * Default: 0
+ * Values: 0, 1
+ */
+ bool spec_inv;
+};
+
+
+#if IS_REACHABLE(CONFIG_DVB_CXD2820R)
+/**
+ * Attach a cxd2820r demod
+ *
+ * @config: pointer to &struct cxd2820r_config with demod configuration.
+ * @i2c: i2c adapter to use.
+ * @gpio_chip_base: if zero, disables GPIO setting. Otherwise, if
+ * CONFIG_GPIOLIB is set dynamically allocate
+ * gpio base; if is not set, use its value to
+ * setup the GPIO pins.
+ *
+ * return: FE pointer on success, NULL on failure.
+ */
+extern struct dvb_frontend *cxd2820r_attach(
+ const struct cxd2820r_config *config,
+ struct i2c_adapter *i2c,
+ int *gpio_chip_base
+);
+#else
+static inline struct dvb_frontend *cxd2820r_attach(
+ const struct cxd2820r_config *config,
+ struct i2c_adapter *i2c,
+ int *gpio_chip_base
+)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+
+#endif
+
+#endif /* CXD2820R_H */