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From:   Osama Muhammad <osmtendev@gmail.com>
To:     gregkh@linuxfoundation.org
Cc:     linux-kernel@vger.kernel.org, Osama Muhammad <osmtendev@gmail.com>,
        Samuel Thibault <samuel.thibault@ens-lyon.org>
Subject: [PATCH] Accessiblity: speakup_spkout: specifying the default driver parameters among the module params
Date:   Sat, 29 Oct 2022 21:29:13 +0500
Message-Id: <20221029162913.17967-1-osmtendev@gmail.com>
MIME-Version: 1.0
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This is an enhancement which allows to specify the default driver
parameters among the module parameters.

Adding default variables to the speakup_spkout 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>

---
 .../accessibility/speakup/speakup_spkout.c    | 43 +++++++++++++++----
 1 file changed, 34 insertions(+), 9 deletions(-)

diff --git a/drivers/accessibility/speakup/speakup_spkout.c b/drivers/accessibility/speakup/speakup_spkout.c
index 5e3bb3aa98b6..d3f26095b0ee 100644
--- a/drivers/accessibility/speakup/speakup_spkout.c
+++ b/drivers/accessibility/speakup/speakup_spkout.c
@@ -18,15 +18,26 @@
 
 static void synth_flush(struct spk_synth *synth);
 
-static struct var_t vars[] = {
-	{ CAPS_START, .u.s = {"\x05P+" } },
-	{ CAPS_STOP, .u.s = {"\x05P-" } },
-	{ RATE, .u.n = {"\x05R%d", 7, 0, 9, 0, 0, NULL } },
-	{ PITCH, .u.n = {"\x05P%d", 3, 0, 9, 0, 0, NULL } },
-	{ VOL, .u.n = {"\x05V%d", 9, 0, 9, 0, 0, NULL } },
-	{ TONE, .u.n = {"\x05T%c", 8, 0, 25, 65, 0, NULL } },
-	{ PUNCT, .u.n = {"\x05M%c", 0, 0, 3, 0, 0, "nsma" } },
-	{ 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, PUNCT_ID,
+	DIRECT_ID, V_LAST_VAR_ID,
+	NB_ID
+};
+
+
+static struct var_t vars[NB_ID] = {
+	[CAPS_START_ID] = { CAPS_START, .u.s = {"\x05P+" } },
+	[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"\x05P-" } },
+	[RATE_ID] = { RATE, .u.n = {"\x05R%d", 7, 0, 9, 0, 0, NULL } },
+	[PITCH_ID] = { PITCH, .u.n = {"\x05P%d", 3, 0, 9, 0, 0, NULL } },
+	[VOL_ID] = { VOL, .u.n = {"\x05V%d", 9, 0, 9, 0, 0, NULL } },
+	[TONE_ID] = { TONE, .u.n = {"\x05T%c", 8, 0, 25, 65, 0, NULL } },
+	[PUNCT_ID] = { PUNCT, .u.n = {"\x05M%c", 0, 0, 3, 0, 0, "nsma" } },
+	[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 	V_LAST_VAR
 };
 
@@ -124,10 +135,24 @@ static void synth_flush(struct spk_synth *synth)
 module_param_named(ser, synth_spkout.ser, int, 0444);
 module_param_named(dev, synth_spkout.dev_name, charp, 0444);
 module_param_named(start, synth_spkout.startup, short, 0444);
+module_param_named(rate, vars[RATE_ID].u.n.default_val, int, 0444);
+module_param_named(vol, vars[PITCH_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(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(vol, "Set the vol variable on load.");
+MODULE_PARM_DESC(tone, "Set the tone variable on load.");
+MODULE_PARM_DESC(punct, "Set the punct variable on load.");
+MODULE_PARM_DESC(direct, "Set the direct variable on load.");
+
+
 
 module_spk_synth(synth_spkout);
 
-- 
2.25.1