Add --with-max-cards option to specify the max number of cards in configure script, when the support for more than 32 cards is required.

Signed-off-by: Takashi Iwai tiwai@suse.de --- configure.in | 14 ++++++++++++++ src/confmisc.c | 2 +- src/control/cards.c | 6 +++--- src/control/control_hw.c | 2 +- src/hwdep/hwdep_hw.c | 2 +- 5 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/configure.in b/configure.in index 35b8e84..3d394fc 100644 --- a/configure.in +++ b/configure.in @@ -632,6 +632,20 @@ for t in $CTL_PLUGIN_LIST; do fi done

+dnl Max number of cards +AC_MSG_CHECKING(for max number of cards) +AC_ARG_WITH(max-cards, + AS_HELP_STRING([--with-max-cards], [Specify the max number of cards (default = 32)]), + [ max_cards="$withval" ], [ max_cards="32" ]) +AC_MSG_RESULT([$max_cards]) + +if test "$max_cards" -lt 1; then + AC_ERROR([Invalid max cards $max_cards]) +elif test "$max_cards" -gt 256; then + AC_ERROR([Invalid max cards $max_cards]) +fi +AC_DEFINE_UNQUOTED(SND_MAX_CARDS, $max_cards, [Max number of cards]) + dnl Make a symlink for inclusion of alsa/xxx.h if test ! -L "$srcdir"/include/alsa ; then echo "Making a symlink include/alsa" diff --git a/src/confmisc.c b/src/confmisc.c index 80b0027..af686be 100644 --- a/src/confmisc.c +++ b/src/confmisc.c @@ -668,7 +668,7 @@ int snd_determine_driver(int card, char **driver) char *res = NULL; int err;

- assert(card >= 0 && card <= 32); + assert(card >= 0 && card <= SND_MAX_CARDS); err = open_ctl(card, &ctl); if (err < 0) { SNDERR("could not open control for card %i", card); diff --git a/src/control/cards.c b/src/control/cards.c index b528e33..5d7376c 100644 --- a/src/control/cards.c +++ b/src/control/cards.c @@ -103,7 +103,7 @@ int snd_card_next(int *rcard) return -EINVAL; card = *rcard; card = card < 0 ? 0 : card + 1; - for (; card < 32; card++) { + for (; card < SND_MAX_CARDS; card++) { if (snd_card_load(card)) { *rcard = card; return 0; @@ -134,7 +134,7 @@ int snd_card_get_index(const char *string) (isdigit(*string) && isdigit(*(string + 1)) && *(string + 2) == 0)) { if (sscanf(string, "%i", &card) != 1) return -EINVAL; - if (card < 0 || card > 31) + if (card < 0 || card >= SND_MAX_CARDS) return -EINVAL; err = snd_card_load1(card); if (err >= 0) @@ -143,7 +143,7 @@ int snd_card_get_index(const char *string) } if (string[0] == '/') /* device name */ return snd_card_load2(string); - for (card = 0; card < 32; card++) { + for (card = 0; card < SND_MAX_CARDS; card++) { #ifdef SUPPORT_ALOAD if (! snd_card_load(card)) continue; diff --git a/src/control/control_hw.c b/src/control/control_hw.c index 90c4ba7..148097f 100644 --- a/src/control/control_hw.c +++ b/src/control/control_hw.c @@ -382,7 +382,7 @@ int snd_ctl_hw_open(snd_ctl_t **handle, const char *name, int card, int mode)

*handle = NULL;

- if (CHECK_SANITY(card < 0 || card >= 32)) { + if (CHECK_SANITY(card < 0 || card >= SND_MAX_CARDS)) { SNDMSG("Invalid card index %d", card); return -EINVAL; } diff --git a/src/hwdep/hwdep_hw.c b/src/hwdep/hwdep_hw.c index e4fcdc3..4314e32 100644 --- a/src/hwdep/hwdep_hw.c +++ b/src/hwdep/hwdep_hw.c @@ -112,7 +112,7 @@ int snd_hwdep_hw_open(snd_hwdep_t **handle, const char *name, int card, int devi

*handle = NULL; - if (card < 0 || card >= 32) + if (card < 0 || card >= SND_MAX_CARDS) return -EINVAL; sprintf(filename, SNDRV_FILE_HWDEP, card, device); fd = snd_open_device(filename, mode);