Accessiblity: speakup_acntpc: 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_acntpc 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/7Signed-off-by: NOsama Muhammad <osmtendev@gmail.com>
Reviewed-by: NSamuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20221109215108.7933-15-osmtendev@gmail.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/accessibility/speakup/speakup_acntpc.c

@@ -34,14 +34,23 @@ static int synth_port_control;
 static int port_forced;
 static unsigned int synth_portlist[] = { 0x2a8, 0 };
 
-static struct var_t vars[] = {
-	{ CAPS_START, .u.s = {"\033P8" } },
-	{ CAPS_STOP, .u.s = {"\033P5" } },
-	{ RATE, .u.n = {"\033R%c", 9, 0, 17, 0, 0, "0123456789abcdefgh" } },
-	{ PITCH, .u.n = {"\033P%d", 5, 0, 9, 0, 0, NULL } },
-	{ VOL, .u.n = {"\033A%d", 5, 0, 9, 0, 0, NULL } },
-	{ TONE, .u.n = {"\033V%d", 5, 0, 9, 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 = {"\033P8" } },
+	[CAPS_STOP_ID] = { CAPS_STOP, .u.s = {"\033P5" } },
+	[RATE_ID] = { RATE, .u.n = {"\033R%c", 9, 0, 17, 0, 0, "0123456789abcdefgh" } },
+	[PITCH_ID] = { PITCH, .u.n = {"\033P%d", 5, 0, 9, 0, 0, NULL } },
+	[VOL_ID] = { VOL, .u.n = {"\033A%d", 5, 0, 9, 0, 0, NULL } },
+	[TONE_ID] = { TONE, .u.n = {"\033V%d", 5, 0, 9, 0, 0, NULL } },
+	[DIRECT_ID] = { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 	V_LAST_VAR
 };
 
@@ -305,9 +314,22 @@ static void accent_release(struct spk_synth *synth)
 
 module_param_hw_named(port, port_forced, int, ioport, 0444);
 module_param_named(start, synth_acntpc.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(port, "Set the port for the synthesizer (override probing).");
 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_acntpc);