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authorDaniel Scheller <d.scheller@gmx.net>2017-07-09 15:42:43 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-08-20 07:25:09 -0400
commit3c4e04153f9aacfb34e8c5c884c1424e08994aaf (patch)
tree2482c7bcf155a71345550a2f32bf93b31fbaf351 /drivers/media/dvb-frontends/mxl5xx.h
parent20e671dff9e40fa882574de29be9cc647737aee8 (diff)
downloadlinux-3c4e04153f9aacfb34e8c5c884c1424e08994aaf.tar.bz2
media: dvb-frontends: MaxLinear MxL5xx DVB-S/S2 tuner-demodulator driver
This adds the frontend driver for the MaxLinear MxL5xx family of tuner- demodulators, as used on Digital Devices MaxS4/8 four/eight-tuner cards. The driver was picked from the dddvb vendor driver package and - judging solely from the diff - has undergone a 100% rework: - Silly #define's used to pass multiple values to functions were expanded. This resulted in macro/register names not being usable anymore for such occurences, but makes the code WAY more read-, understand- and maintainable. - CamelCase was changed to kernel_case - All typedef were removed - Overall code style was fixed, besides >80char lines in _defs.h and _regs.h, checkpatch is happy. - Also, signal stat acquisition was made to comply with the DVB API ways to do these things. Permission to reuse and mainline the driver code was formally granted by Ralph Metzler <rjkm@metzlerbros.de>. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/dvb-frontends/mxl5xx.h')
-rw-r--r--drivers/media/dvb-frontends/mxl5xx.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/mxl5xx.h b/drivers/media/dvb-frontends/mxl5xx.h
new file mode 100644
index 000000000000..532e08111537
--- /dev/null
+++ b/drivers/media/dvb-frontends/mxl5xx.h
@@ -0,0 +1,41 @@
+#ifndef _MXL5XX_H_
+#define _MXL5XX_H_
+
+#include <linux/types.h>
+#include <linux/i2c.h>
+
+#include "dvb_frontend.h"
+
+struct mxl5xx_cfg {
+ u8 adr;
+ u8 type;
+ u32 cap;
+ u32 clk;
+ u32 ts_clk;
+
+ u8 *fw;
+ u32 fw_len;
+
+ int (*fw_read)(void *priv, u8 *buf, u32 len);
+ void *fw_priv;
+};
+
+#if IS_REACHABLE(CONFIG_DVB_MXL5XX)
+
+extern struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
+ struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
+ int (**fn_set_input)(struct dvb_frontend *, int));
+
+#else
+
+static inline struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
+ struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
+ int (**fn_set_input)(struct dvb_frontend *, int))
+{
+ pr_warn("%s: driver disabled by Kconfig\n", __func__);
+ return NULL;
+}
+
+#endif /* CONFIG_DVB_MXL5XX */
+
+#endif /* _MXL5XX_H_ */