Re: [PATCH] Accessiblity: speakup_bns: specifying the default driver parameters among the module params

[Samuel Thibault <samuel.thibault@ens-lyon.org>]

Osama Muhammad, le ven. 21 oct. 2022 18:53:42 +0500, a ecrit:
> This is an enhancement which allows to specify the default driver
> parameters among the module parameters.
> 
> Adding a default variables to the speakup_bns module
> allows to easily set that at boot, rather than
> setting the sys variables after boot.
> More details can be found here:
> https://github.com/linux-speakup/speakup/issues/7
> 
> Signed-off-by: Osama Muhammad <osmtendev@gmail.com>

Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

Thanks!

> ---
>  drivers/accessibility/speakup/speakup_bns.c | 36 ++++++++++++++++-----
>  1 file changed, 28 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/accessibility/speakup/speakup_bns.c b/drivers/accessibility/speakup/speakup_bns.c
> index b8103eb117b8..60507756499c 100644
> --- a/drivers/accessibility/speakup/speakup_bns.c
> +++ b/drivers/accessibility/speakup/speakup_bns.c
> @@ -16,14 +16,23 @@
>  #define SYNTH_CLEAR 0x18
>  #define PROCSPEECH '\r'
>  
> -static struct var_t vars[] = {
> -	{ CAPS_START, .u.s = {"\x05\x31\x32P" } },
> -	{ CAPS_STOP, .u.s = {"\x05\x38P" } },
> -	{ RATE, .u.n = {"\x05%dE", 8, 1, 16, 0, 0, NULL } },
> -	{ PITCH, .u.n = {"\x05%dP", 8, 0, 16, 0, 0, NULL } },
> -	{ VOL, .u.n = {"\x05%dV", 8, 0, 16, 0, 0, NULL } },
> -	{ TONE, .u.n = {"\x05%dT", 8, 0, 16, 0, 0, NULL } },
> -	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
> +
> +enum default_vars_id {
> +	CAPS_START_ID = 0, CAPS_STOP_ID,
> +	RATE_ID, PITCH_ID,
> +	VOL_ID, TONE_ID,
> +	DIRECT_ID, V_LAST_VAR_ID,
> +	NB_ID
> +};
> +
> +static struct var_t vars[NB_ID] = {
> +	[CAPS_START_ID] = { CAPS_START, .u.s = {"\x05\x31\x32P" } },
> +	[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"\x05\x38P" } },
> +	[RATE_ID] = { RATE, .u.n = {"\x05%dE", 8, 1, 16, 0, 0, NULL } },
> +	[PITCH_ID] = { PITCH, .u.n = {"\x05%dP", 8, 0, 16, 0, 0, NULL } },
> +	[VOL_ID] = { VOL, .u.n = {"\x05%dV", 8, 0, 16, 0, 0, NULL } },
> +	[TONE_ID] = { TONE, .u.n = {"\x05%dT", 8, 0, 16, 0, 0, NULL } },
> +	[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
>  	V_LAST_VAR
>  };
>  
> @@ -113,10 +122,21 @@ static struct spk_synth synth_bns = {
>  module_param_named(ser, synth_bns.ser, int, 0444);
>  module_param_named(dev, synth_bns.dev_name, charp, 0444);
>  module_param_named(start, synth_bns.startup, short, 0444);
> +module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444);
> +module_param_named(pitch, vars[PITCH_ID].u.n.default_val, int, 0444);
> +module_param_named(vol, vars[VOL_ID].u.n.default_val, int, 0444);
> +module_param_named(tone, vars[TONE_ID].u.n.default_val, int, 0444);
> +module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 0444);
> +
>  
>  MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
>  MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
>  MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
> +MODULE_PARM_DESC(rate, "Set the rate variable on load.");
> +MODULE_PARM_DESC(pitch, "Set the pitch variable on load.");
> +MODULE_PARM_DESC(vol, "Set the vol variable on load.");
> +MODULE_PARM_DESC(tone, "Set the tone variable on load.");
> +MODULE_PARM_DESC(direct, "Set the direct variable on load.");
>  
>  module_spk_synth(synth_bns);
>  
> -- 
> 2.25.1
> 

-- 
Samuel
---
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