[patch 3/8] staging: serial: add spk_io_ops struct to spk_synth

Samuel Thibault samuel.thibault at ens-lyon.org
Sun Mar 12 08:25:24 EDT 2017


okash.khawaja at gmail.com, on dim. 12 mars 2017 12:16:47 +0000, wrote:
> This patch adds spk_io_ops struct which contain those methods whose job is to
> communicate with synth device. Currently, all comms with external synth
> device use raw serial i/o. Starting with this patch set, an alternative
> tty-based way of communication is being introduced. The idea is to group all
> methods which do the actual communication with external device into this new
> struct. Then migrating a serial-based synth over to tty will mean swapping
> serial spk_io_ops instance with tty spk_io_ops instance, making the migration
> simpler.
> 
> At the moment, this struct only contains one method, synth_out but more will
> be added in future when incorporating inputs in the tty-based comms. Also at
> the moment, synth_out method has one implementation which uses serial i/o.
> Later in this patch set, an alternate tty-based implementation will be added.
> 
> Signed-off-by: Okash Khawaja <okash.khawaja at gmail.com>

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

> Index: linux-4.10.1/drivers/staging/speakup/serialio.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/serialio.c
> +++ linux-4.10.1/drivers/staging/speakup/serialio.c
> @@ -24,6 +24,12 @@
>  static const struct old_serial_port *serstate;
>  static int timeouts;
>  
> +static int spk_serial_out(struct spk_synth *in_synth, const char ch);
> +struct spk_io_ops spk_serial_io_ops = {
> +	.synth_out = spk_serial_out,
> +};
> +EXPORT_SYMBOL_GPL(spk_serial_io_ops);
> +
>  const struct old_serial_port *spk_serial_init(int index)
>  {
>  	int baud = 9600, quot = 0;
> @@ -215,7 +221,6 @@
>  	}
>  	return 0;
>  }
> -EXPORT_SYMBOL_GPL(spk_serial_out);
>  
>  void spk_serial_release(void)
>  {
> Index: linux-4.10.1/drivers/staging/speakup/speakup_acntpc.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_acntpc.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_acntpc.c
> @@ -113,6 +113,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = synth_probe,
>  	.release = accent_release,
>  	.synth_immediate = synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_acntsa.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_acntsa.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_acntsa.c
> @@ -99,6 +99,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_apollo.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_apollo.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_apollo.c
> @@ -108,6 +108,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = spk_serial_synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> @@ -169,7 +170,7 @@
>  		set_current_state(TASK_INTERRUPTIBLE);
>  		full_time_val = full_time->u.n.value;
>  		spin_unlock_irqrestore(&speakup_info.spinlock, flags);
> -		if (!spk_serial_out(synth, ch)) {
> +		if (!synth->io_ops->synth_out(synth, ch)) {
>  			outb(UART_MCR_DTR, speakup_info.port_tts + UART_MCR);
>  			outb(UART_MCR_DTR | UART_MCR_RTS,
>  					speakup_info.port_tts + UART_MCR);
> @@ -182,7 +183,7 @@
>  			full_time_val = full_time->u.n.value;
>  			delay_time_val = delay_time->u.n.value;
>  			spin_unlock_irqrestore(&speakup_info.spinlock, flags);
> -			if (spk_serial_out(synth, synth->procspeech))
> +			if (synth->io_ops->synth_out(synth, synth->procspeech))
>  				schedule_timeout(msecs_to_jiffies
>  						 (delay_time_val));
>  			else
> @@ -195,7 +196,7 @@
>  		synth_buffer_getc();
>  		spin_unlock_irqrestore(&speakup_info.spinlock, flags);
>  	}
> -	spk_serial_out(synth, PROCSPEECH);
> +	synth->io_ops->synth_out(synth, PROCSPEECH);
>  }
>  
>  module_param_named(ser, synth_apollo.ser, int, S_IRUGO);
> Index: linux-4.10.1/drivers/staging/speakup/speakup_audptr.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_audptr.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_audptr.c
> @@ -104,6 +104,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> @@ -135,7 +136,7 @@
>  		udelay(1);
>  	}
>  	outb(SYNTH_CLEAR, speakup_info.port_tts);
> -	spk_serial_out(synth, PROCSPEECH);
> +	synth->io_ops->synth_out(synth, PROCSPEECH);
>  }
>  
>  static void synth_version(struct spk_synth *synth)
> Index: linux-4.10.1/drivers/staging/speakup/speakup_decext.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_decext.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_decext.c
> @@ -127,6 +127,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = spk_serial_synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> @@ -186,7 +187,7 @@
>  		spin_unlock_irqrestore(&speakup_info.spinlock, flags);
>  		if (ch == '\n')
>  			ch = 0x0D;
> -		if (synth_full() || !spk_serial_out(synth, ch)) {
> +		if (synth_full() || !synth->io_ops->synth_out(synth, ch)) {
>  			schedule_timeout(msecs_to_jiffies(delay_time_val));
>  			continue;
>  		}
> @@ -200,10 +201,10 @@
>  			in_escape = 0;
>  		else if (ch <= SPACE) {
>  			if (!in_escape && strchr(",.!?;:", last))
> -				spk_serial_out(synth, PROCSPEECH);
> +				synth->io_ops->synth_out(synth, PROCSPEECH);
>  			if (time_after_eq(jiffies, jiff_max)) {
>  				if (!in_escape)
> -					spk_serial_out(synth, PROCSPEECH);
> +					synth->io_ops->synth_out(synth, PROCSPEECH);
>  				spin_lock_irqsave(&speakup_info.spinlock,
>  							flags);
>  				jiffy_delta_val = jiffy_delta->u.n.value;
> @@ -218,7 +219,7 @@
>  		last = ch;
>  	}
>  	if (!in_escape)
> -		spk_serial_out(synth, PROCSPEECH);
> +		synth->io_ops->synth_out(synth, PROCSPEECH);
>  }
>  
>  static void synth_flush(struct spk_synth *synth)
> Index: linux-4.10.1/drivers/staging/speakup/speakup_dectlk.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_dectlk.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_dectlk.c
> @@ -130,6 +130,7 @@
>  	.vars = vars,
>  	.default_pitch = ap_defaults,
>  	.default_vol = g5_defaults,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = spk_serial_synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> @@ -251,7 +252,7 @@
>  		spin_unlock_irqrestore(&speakup_info.spinlock, flags);
>  		if (ch == '\n')
>  			ch = 0x0D;
> -		if (synth_full_val || !spk_serial_out(synth, ch)) {
> +		if (synth_full_val || !synth->io_ops->synth_out(synth, ch)) {
>  			schedule_timeout(msecs_to_jiffies(delay_time_val));
>  			continue;
>  		}
> @@ -265,10 +266,10 @@
>  			in_escape = 0;
>  		else if (ch <= SPACE) {
>  			if (!in_escape && strchr(",.!?;:", last))
> -				spk_serial_out(synth, PROCSPEECH);
> +				synth->io_ops->synth_out(synth, PROCSPEECH);
>  			if (time_after_eq(jiffies, jiff_max)) {
>  				if (!in_escape)
> -					spk_serial_out(synth, PROCSPEECH);
> +					synth->io_ops->synth_out(synth, PROCSPEECH);
>  				spin_lock_irqsave(&speakup_info.spinlock,
>  						flags);
>  				jiffy_delta_val = jiffy_delta->u.n.value;
> @@ -283,17 +284,17 @@
>  		last = ch;
>  	}
>  	if (!in_escape)
> -		spk_serial_out(synth, PROCSPEECH);
> +		synth->io_ops->synth_out(synth, PROCSPEECH);
>  }
>  
>  static void synth_flush(struct spk_synth *synth)
>  {
>  	if (in_escape)
>  		/* if in command output ']' so we don't get an error */
> -		spk_serial_out(synth, ']');
> +		synth->io_ops->synth_out(synth, ']');
>  	in_escape = 0;
>  	is_flushing = 1;
> -	spk_serial_out(synth, SYNTH_CLEAR);
> +	synth->io_ops->synth_out(synth, SYNTH_CLEAR);
>  }
>  
>  module_param_named(ser, synth_dectlk.ser, int, S_IRUGO);
> Index: linux-4.10.1/drivers/staging/speakup/spk_priv.h
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/spk_priv.h
> +++ linux-4.10.1/drivers/staging/speakup/spk_priv.h
> @@ -45,7 +45,6 @@
>  int spk_wait_for_xmitr(struct spk_synth *in_synth);
>  unsigned char spk_serial_in(void);
>  unsigned char spk_serial_in_nowait(void);
> -int spk_serial_out(struct spk_synth *in_synth, const char ch);
>  void spk_serial_release(void);
>  
>  void synth_buffer_skip_nonlatin1(void);
> @@ -78,4 +77,6 @@
>  
>  extern struct var_t synth_time_vars[];
>  
> +extern struct spk_io_ops spk_serial_io_ops;
> +
>  #endif
> Index: linux-4.10.1/drivers/staging/speakup/spk_types.h
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/spk_types.h
> +++ linux-4.10.1/drivers/staging/speakup/spk_types.h
> @@ -146,6 +146,12 @@
>  	unsigned char currindex;
>  };
>  
> +struct spk_synth;
> +
> +struct spk_io_ops {
> +	int (*synth_out)(struct spk_synth *synth, const char ch);
> +};
> +
>  struct spk_synth {
>  	const char *name;
>  	const char *version;
> @@ -164,6 +170,7 @@
>  	struct var_t *vars;
>  	int *default_pitch;
>  	int *default_vol;
> +	struct spk_io_ops *io_ops;
>  	int (*probe)(struct spk_synth *synth);
>  	void (*release)(void);
>  	const char *(*synth_immediate)(struct spk_synth *synth,
> Index: linux-4.10.1/drivers/staging/speakup/synth.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/synth.c
> +++ linux-4.10.1/drivers/staging/speakup/synth.c
> @@ -120,7 +120,7 @@
>  		spin_unlock_irqrestore(&speakup_info.spinlock, flags);
>  		if (ch == '\n')
>  			ch = synth->procspeech;
> -		if (!spk_serial_out(synth, ch)) {
> +		if (!synth->io_ops->synth_out(synth, ch)) {
>  			schedule_timeout(msecs_to_jiffies(full_time_val));
>  			continue;
>  		}
> @@ -130,7 +130,7 @@
>  			delay_time_val = delay_time->u.n.value;
>  			full_time_val = full_time->u.n.value;
>  			spin_unlock_irqrestore(&speakup_info.spinlock, flags);
> -			if (spk_serial_out(synth, synth->procspeech))
> +			if (synth->io_ops->synth_out(synth, synth->procspeech))
>  				schedule_timeout(
>  					msecs_to_jiffies(delay_time_val));
>  			else
> @@ -143,7 +143,7 @@
>  		synth_buffer_getc();
>  		spin_unlock_irqrestore(&speakup_info.spinlock, flags);
>  	}
> -	spk_serial_out(synth, synth->procspeech);
> +	synth->io_ops->synth_out(synth, synth->procspeech);
>  }
>  EXPORT_SYMBOL_GPL(spk_do_catch_up);
>  
> @@ -166,7 +166,7 @@
>  
>  void spk_synth_flush(struct spk_synth *synth)
>  {
> -	spk_serial_out(synth, synth->clear);
> +	synth->io_ops->synth_out(synth, synth->clear);
>  }
>  EXPORT_SYMBOL_GPL(spk_synth_flush);
>  
> Index: linux-4.10.1/drivers/staging/speakup/speakup_bns.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_bns.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_bns.c
> @@ -96,6 +96,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = spk_serial_synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_decpc.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_decpc.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_decpc.c
> @@ -220,6 +220,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = synth_probe,
>  	.release = dtpc_release,
>  	.synth_immediate = synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_dtlk.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_dtlk.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_dtlk.c
> @@ -128,6 +128,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = synth_probe,
>  	.release = dtlk_release,
>  	.synth_immediate = synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_dummy.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_dummy.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_dummy.c
> @@ -98,6 +98,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = spk_serial_synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_keypc.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_keypc.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_keypc.c
> @@ -105,6 +105,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = synth_probe,
>  	.release = keynote_release,
>  	.synth_immediate = synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_ltlk.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_ltlk.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_ltlk.c
> @@ -111,6 +111,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_soft.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_soft.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_soft.c
> @@ -131,6 +131,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = NULL,
>  	.probe = softsynth_probe,
>  	.release = softsynth_release,
>  	.synth_immediate = NULL,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_spkout.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_spkout.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_spkout.c
> @@ -102,6 +102,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = spk_serial_synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> Index: linux-4.10.1/drivers/staging/speakup/speakup_txprt.c
> ===================================================================
> --- linux-4.10.1.orig/drivers/staging/speakup/speakup_txprt.c
> +++ linux-4.10.1/drivers/staging/speakup/speakup_txprt.c
> @@ -95,6 +95,7 @@
>  	.startup = SYNTH_START,
>  	.checkval = SYNTH_CHECK,
>  	.vars = vars,
> +	.io_ops = &spk_serial_io_ops,
>  	.probe = spk_serial_synth_probe,
>  	.release = spk_serial_release,
>  	.synth_immediate = spk_synth_immediate,
> 

-- 
Samuel
<y> muhahaha...
<y> ya un train qui part de Perrache à 14h57
<y> qui passe à Part-Dieu à 15h10
<y> si je le prend à Perrache, je suis en zone bleue
<y> si je le prends à Part-Dieu, je suis en zone blanche
<y> donc je vais le prendre à Perrache *mais* à Part-Dieu ;-)
 -+- #ens-mim - vive la SNCF -+-


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