On Thu 14 Dec 09:33 PST 2017, srinivas.kandagatla@linaro.org wrote:
+static inline int q6dsp_map_channels(u8 *ch_map, int ch) +{
- memset(ch_map, 0, PCM_FORMAT_MAX_NUM_CHANNEL);
This implies that ch_map is always an array of PCM_FORMAT_MAX_NUM_CHANNEL elements. As such it would be better to express this in the prototype; i.e u8 ch_map[PCM_FORMAT_MAX_NUM_CHANNEL]
- if (ch == 1) {
This is a switch statement.
ch_map[0] = PCM_CHANNEL_FC;- } else if (ch == 2) {
[..]
+struct adsp_err_code {
- int lnx_err_code;
Indentation, and these could be given more succinct names.
- char *adsp_err_str;
+};
+static struct adsp_err_code adsp_err_code_info[ADSP_ERR_MAX+1] = {
- { 0, ADSP_EOK_STR},
- { -ENOTRECOVERABLE, ADSP_EFAILED_STR},
- { -EINVAL, ADSP_EBADPARAM_STR},
- { -ENOSYS, ADSP_EUNSUPPORTED_STR},
- { -ENOPROTOOPT, ADSP_EVERSION_STR},
- { -ENOTRECOVERABLE, ADSP_EUNEXPECTED_STR},
- { -ENOTRECOVERABLE, ADSP_EPANIC_STR},
- { -ENOSPC, ADSP_ENORESOURCE_STR},
- { -EBADR, ADSP_EHANDLE_STR},
- { -EALREADY, ADSP_EALREADY_STR},
- { -EPERM, ADSP_ENOTREADY_STR},
- { -EINPROGRESS, ADSP_EPENDING_STR},
- { -EBUSY, ADSP_EBUSY_STR},
- { -ECANCELED, ADSP_EABORTED_STR},
- { -EAGAIN, ADSP_EPREEMPTED_STR},
- { -EAGAIN, ADSP_ECONTINUE_STR},
- { -EAGAIN, ADSP_EIMMEDIATE_STR},
- { -EAGAIN, ADSP_ENOTIMPL_STR},
- { -ENODATA, ADSP_ENEEDMORE_STR},
- { -EADV, ADSP_ERR_MAX_STR},
This, element 0x13, is not listed among the defined errors. Is this a placeholder?
How about making this even more descriptive by using the format
[ADSP_EBADPARAM] = { -EINVAL, ADSP_EBADPARAM_STR },
That way the mapping table is self-describing.
And you can use ARRAY_SIZE() instead of specifying the fixed size of ADSP_ERR_MAX + 1...
- { -ENOMEM, ADSP_ENOMEMORY_STR},
- { -ENODEV, ADSP_ENOTEXIST_STR},
- { -EADV, ADSP_ERR_MAX_STR},
"Advertise error"?
+};
+static inline int adsp_err_get_lnx_err_code(u32 adsp_error)
Can this be made internal to some c-file? So that any third party deals only with linux error codes?
How about renaming this q6dsp_errno()?
+{
- if (adsp_error > ADSP_ERR_MAX)
return adsp_err_code_info[ADSP_ERR_MAX].lnx_err_code;- else
return adsp_err_code_info[adsp_error].lnx_err_code;
I think this would look better if you assign a local variable and have a single return. And just hard code the "invalid error code" errno, rather than looking up ADSP_ERR_MAX in the list.
+}
+static inline char *adsp_err_get_err_str(u32 adsp_error)
q6dsp_strerror(), to match strerror(3)?
+{
- if (adsp_error > ADSP_ERR_MAX)
return adsp_err_code_info[ADSP_ERR_MAX].adsp_err_str;- else
return adsp_err_code_info[adsp_error].adsp_err_str;
And I do think that, as with strerror, this should return a human readable error, not the stringified define.
+}
I'm puzzled to why these helper functions lives in a header file, at least some aspects of this would better be hidden...
Regards, Bjorn