[Linux-kernel-mentees] [PATCH v3 1/3] cec-follower: fix bugs for tuner emulation
Hans Verkuil
hverkuil at xs4all.nl
Mon Sep 30 09:12:03 UTC 2019
Hi Jiunn,
On 9/30/19 6:30 AM, Jiunn Chang wrote:
> Fix some typos for tuner emulation:
> - analog_tuner_init() store ana_freq in hex
> - analog_get_nearest_freq() temp variable check
The patch is fine, but this commit log is wrong.
"store ana_freq in hex" is meaningless. What you mean is "store ana_freq as multiples of 62.5 kHz"
and the second line gives the wrong function name and doesn't really explain the issue.
Regards,
Hans
>
> Signed-off-by: Jiunn Chang <c0d1n61at3 at gmail.com>
> ---
> utils/cec-follower/cec-tuner.cpp | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/utils/cec-follower/cec-tuner.cpp b/utils/cec-follower/cec-tuner.cpp
> index acc3fd00..2f6e3425 100644
> --- a/utils/cec-follower/cec-tuner.cpp
> +++ b/utils/cec-follower/cec-tuner.cpp
> @@ -92,13 +92,15 @@ static unsigned int analog_freqs_khz[3][9][NUM_ANALOG_FREQS] =
>
> void analog_tuner_init(struct cec_op_tuner_device_info *info)
> {
> + unsigned int freq_khz =
> + analog_freqs_khz[info->analog.ana_bcast_type][info->analog.bcast_system][0];
> +
> info->rec_flag = CEC_OP_REC_FLAG_NOT_USED;
> info->tuner_display_info = CEC_OP_TUNER_DISPLAY_INFO_ANALOGUE;
> info->is_analog = true;
> info->analog.ana_bcast_type = CEC_OP_ANA_BCAST_TYPE_CABLE;
> info->analog.bcast_system = CEC_OP_BCAST_SYSTEM_PAL_BG;
> - info->analog.ana_freq =
> - analog_freqs_khz[info->analog.ana_bcast_type][info->analog.bcast_system][0];
> + info->analog.ana_freq = (freq_khz * 10) / 625;
> }
>
> static unsigned int analog_get_nearest_freq(__u8 ana_bcast_type, __u8 ana_bcast_system,
> @@ -123,7 +125,7 @@ static bool analog_set_tuner_dev_info(struct node *node, struct cec_msg *msg)
> __u8 system;
>
> cec_ops_select_analogue_service(msg, &type, &freq, &system);
> - if (info->analog.ana_bcast_type < 3 && info->analog.bcast_system < 9) {
> + if (type < 3 && system < 9) {
> int freq_khz = (freq * 625) / 10;
> unsigned int nearest = analog_get_nearest_freq(type, system,
> freq_khz);
>
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