linux-kernel - [PATCH 05/15] Accessiblity: speakup_decext: specifying the default driver parameters among the module params

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Date:   Thu, 10 Nov 2022 02:50:58 +0500
From:   Osama Muhammad <osmtendev@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, Osama Muhammad <osmtendev@...il.com>,
        Samuel Thibault <samuel.thibault@...-lyon.org>
Subject: [PATCH 05/15] Accessiblity: speakup_decext: 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 a default variables to the speakup_decext 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>
Reviewed-by: Samuel Thibault <samuel.thibault@...-lyon.org>
---
 .../accessibility/speakup/speakup_decext.c    | 44 ++++++++++++++-----
 1 file changed, 34 insertions(+), 10 deletions(-)

diff --git a/drivers/accessibility/speakup/speakup_decext.c b/drivers/accessibility/speakup/speakup_decext.c
index eaebf62300a4..271bcf279bf9 100644
--- a/drivers/accessibility/speakup/speakup_decext.c
+++ b/drivers/accessibility/speakup/speakup_decext.c
@@ -38,16 +38,25 @@ static void synth_flush(struct spk_synth *synth);
 
 static int in_escape;
 
-static struct var_t vars[] = {
-	{ CAPS_START, .u.s = {"[:dv ap 222]" } },
-	{ CAPS_STOP, .u.s = {"[:dv ap 100]" } },
-	{ RATE, .u.n = {"[:ra %d]", 7, 0, 9, 150, 25, NULL } },
-	{ PITCH, .u.n = {"[:dv ap %d]", 100, 0, 100, 0, 0, NULL } },
-	{ INFLECTION, .u.n = {"[:dv pr %d] ", 100, 0, 10000, 0, 0, NULL } },
-	{ VOL, .u.n = {"[:dv gv %d]", 13, 0, 16, 0, 5, NULL } },
-	{ PUNCT, .u.n = {"[:pu %c]", 0, 0, 2, 0, 0, "nsa" } },
-	{ VOICE, .u.n = {"[:n%c]", 0, 0, 9, 0, 0, "phfdburwkv" } },
-	{ 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, INFLECTION_ID,
+	VOL_ID, PUNCT_ID, VOICE_ID,
+	DIRECT_ID, V_LAST_ID,
+	NB_ID,
+};
+
+static struct var_t vars[NB_ID] = {
+	[CAPS_START_ID] = { CAPS_START, .u.s = {"[:dv ap 222]" } },
+	[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"[:dv ap 100]" } },
+	[RATE_ID] = { RATE, .u.n = {"[:ra %d]", 7, 0, 9, 150, 25, NULL } },
+	[PITCH_ID] = { PITCH, .u.n = {"[:dv ap %d]", 100, 0, 100, 0, 0, NULL } },
+	[INFLECTION_ID] = { INFLECTION, .u.n = {"[:dv pr %d] ", 100, 0, 10000, 0, 0, NULL } },
+	[VOL_ID] = { VOL, .u.n = {"[:dv gv %d]", 13, 0, 16, 0, 5, NULL } },
+	[PUNCT_ID] = { PUNCT, .u.n = {"[:pu %c]", 0, 0, 2, 0, 0, "nsa" } },
+	[VOICE_ID] = { VOICE, .u.n = {"[:n%c]", 0, 0, 9, 0, 0, "phfdburwkv" } },
+	[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 	V_LAST_VAR
 };
 
@@ -225,10 +234,25 @@ static void synth_flush(struct spk_synth *synth)
 module_param_named(ser, synth_decext.ser, int, 0444);
 module_param_named(dev, synth_decext.dev_name, charp, 0444);
 module_param_named(start, synth_decext.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(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(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(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(inflection, "Set the inflection variable on load.");
+MODULE_PARM_DESC(vol, "Set the vol variable on load.");
+MODULE_PARM_DESC(punct, "Set the punct variable on load.");
+MODULE_PARM_DESC(voice, "Set the voice variable on load.");
+MODULE_PARM_DESC(direct, "Set the direct variable on load.");
 
 module_spk_synth(synth_decext);
 
-- 
2.25.1