linux-kernel - [PATCH v3] Accessiblity: speakup: specifying the default driver parameters among the module params

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Message-Id: <20221016203936.5264-1-osmtendev@gmail.com>
Date:   Mon, 17 Oct 2022 01:39:36 +0500
From:   Osama Muhammad <osmtendev@...il.com>
To:     samuel.thibault@...-lyon.org
Cc:     gregkh@...uxfoundation.org, speakup@...ux-speakup.org,
        linux-kernel@...r.kernel.org, Osama Muhammad <osmtendev@...il.com>
Subject: [PATCH v3] Accessiblity: speakup: specifying the default driver parameters among the module params

This is an enhancement which allows to specify the default driver
parameters among the module parameters.

Adding default variables to the speakup_soft 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@...il.com>

---
Changes since v2:
	- Removed an unnecessary comment.

Changes since v1:
	- Added NB_ID as the last member of enum default_vars_id.
	- Added NB_ID as the size of array vars.
	- Made sure that that the enteries in vars are in correct order.
---
 drivers/accessibility/speakup/speakup_soft.c | 59 ++++++++++++++------
 1 file changed, 43 insertions(+), 16 deletions(-)

diff --git a/drivers/accessibility/speakup/speakup_soft.c b/drivers/accessibility/speakup/speakup_soft.c
index 28c8f60370cf..6d446824677b 100644
--- a/drivers/accessibility/speakup/speakup_soft.c
+++ b/drivers/accessibility/speakup/speakup_soft.c
@@ -33,21 +33,30 @@ static struct miscdevice synth_device, synthu_device;
 static int init_pos;
 static int misc_registered;
 
-static struct var_t vars[] = {
-	/* DIRECT is put first so that module_param_named can access it easily */
-	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
-
-	{ CAPS_START, .u.s = {"\x01+3p" } },
-	{ CAPS_STOP, .u.s = {"\x01-3p" } },
-	{ PAUSE, .u.n = {"\x01P" } },
-	{ RATE, .u.n = {"\x01%ds", 2, 0, 9, 0, 0, NULL } },
-	{ PITCH, .u.n = {"\x01%dp", 5, 0, 9, 0, 0, NULL } },
-	{ INFLECTION, .u.n = {"\x01%dr", 5, 0, 9, 0, 0, NULL } },
-	{ VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
-	{ TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
-	{ PUNCT, .u.n = {"\x01%db", 0, 0, 3, 0, 0, NULL } },
-	{ VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
-	{ FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
+
+enum default_vars_id {
+	DIRECT_ID = 0, CAPS_START_ID, CAPS_STOP_ID,
+	PAUSE_ID, RATE_ID, PITCH_ID, INFLECTION_ID,
+	VOL_ID, TONE_ID, PUNCT_ID, VOICE_ID,
+	FREQUENCY_ID, V_LAST_VAR_ID,
+	 NB_ID
+};
+
+
+static struct var_t vars[NB_ID] = {
+
+	[DIRECT_ID]  = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
+	[CAPS_START_ID] = { CAPS_START, .u.s = {"\x01+3p" } },
+	[CAPS_STOP_ID]  = { CAPS_STOP, .u.s = {"\x01-3p" } },
+	[PAUSE_ID]  = { PAUSE, .u.n = {"\x01P" } },
+	[RATE_ID]  = { RATE, .u.n = {"\x01%ds", 2, 0, 9, 0, 0, NULL } },
+	[PITCH_ID]  = { PITCH, .u.n = {"\x01%dp", 5, 0, 9, 0, 0, NULL } },
+	[INFLECTION_ID]  = { INFLECTION, .u.n = {"\x01%dr", 5, 0, 9, 0, 0, NULL } },
+	[VOL_ID]  = { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } },
+	[TONE_ID]  = { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } },
+	[PUNCT_ID]  = { PUNCT, .u.n = {"\x01%db", 0, 0, 3, 0, 0, NULL } },
+	[VOICE_ID]  = { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } },
+	[FREQUENCY_ID]  = { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } },
 	V_LAST_VAR
 };
 
@@ -451,10 +460,28 @@ static int softsynth_adjust(struct spk_synth *synth, struct st_var_header *var)
 }
 
 module_param_named(start, synth_soft.startup, short, 0444);
-module_param_named(direct, vars[0].u.n.default_val, int, 0444);
+module_param_named(direct, vars[DIRECT_ID].u.n.default_val, int, 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(inflection, vars[INFLECTION_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(punct, vars[PUNCT_ID].u.n.default_val, int, 0444);
+module_param_named(voice, vars[VOICE_ID].u.n.default_val, int, 0444);
+module_param_named(frequency, vars[FREQUENCY_ID].u.n.default_val, int, 0444);
+
+
 
 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 MODULE_PARM_DESC(direct, "Set the direct variable on load.");
+MODULE_PARM_DESC(rate, "Sets the rate of the synthesizer.");
+MODULE_PARM_DESC(pitch, "Sets the pitch of the synthesizer.");
+MODULE_PARM_DESC(inflection, "Sets the inflection of the synthesizer.");
+MODULE_PARM_DESC(vol, "Sets the volume of the speech synthesizer.");
+MODULE_PARM_DESC(tone, "Sets the tone of the speech synthesizer.");
+MODULE_PARM_DESC(punct, "Sets the amount of punctuation spoken by the synthesizer.");
+MODULE_PARM_DESC(voice, "Sets the voice used by the synthesizer.");
+MODULE_PARM_DESC(frequency, "Sets the frequency of speech synthesizer.");
 
 module_spk_synth(synth_soft);
 
-- 
2.25.1