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-rw-r--r--drivers/media/video/cx18/Kconfig11
-rw-r--r--drivers/media/video/cx18/Makefile2
-rw-r--r--drivers/media/video/cx18/cx18-alsa-main.c293
-rw-r--r--drivers/media/video/cx18/cx18-alsa-mixer.c175
-rw-r--r--drivers/media/video/cx18/cx18-alsa-mixer.h23
-rw-r--r--drivers/media/video/cx18/cx18-alsa-pcm.c354
-rw-r--r--drivers/media/video/cx18/cx18-alsa-pcm.h27
-rw-r--r--drivers/media/video/cx18/cx18-alsa.h75
-rw-r--r--drivers/media/video/cx18/cx18-cards.c2
-rw-r--r--drivers/media/video/cx18/cx18-driver.c70
-rw-r--r--drivers/media/video/cx18/cx18-driver.h50
-rw-r--r--drivers/media/video/cx18/cx18-dvb.c22
-rw-r--r--drivers/media/video/cx18/cx18-fileops.c205
-rw-r--r--drivers/media/video/cx18/cx18-fileops.h3
-rw-r--r--drivers/media/video/cx18/cx18-ioctl.c135
-rw-r--r--drivers/media/video/cx18/cx18-mailbox.c45
-rw-r--r--drivers/media/video/cx18/cx18-queue.c3
-rw-r--r--drivers/media/video/cx18/cx18-streams.c72
-rw-r--r--drivers/media/video/cx18/cx18-streams.h10
-rw-r--r--drivers/media/video/cx18/cx18-version.h2
-rw-r--r--drivers/media/video/cx18/cx23418.h3
21 files changed, 1449 insertions, 133 deletions
diff --git a/drivers/media/video/cx18/Kconfig b/drivers/media/video/cx18/Kconfig
index e8a50a611eb..baf7e91ee0f 100644
--- a/drivers/media/video/cx18/Kconfig
+++ b/drivers/media/video/cx18/Kconfig
@@ -19,3 +19,14 @@ config VIDEO_CX18
To compile this driver as a module, choose M here: the
module will be called cx18.
+
+config VIDEO_CX18_ALSA
+ tristate "Conexant 23418 DMA audio support"
+ depends on VIDEO_CX18 && SND && EXPERIMENTAL
+ select SND_PCM
+ ---help---
+ This is a video4linux driver for direct (DMA) audio on
+ Conexant 23418 based TV cards using ALSA.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cx18-alsa.
diff --git a/drivers/media/video/cx18/Makefile b/drivers/media/video/cx18/Makefile
index f7bf0edf93f..2fadd9ded34 100644
--- a/drivers/media/video/cx18/Makefile
+++ b/drivers/media/video/cx18/Makefile
@@ -3,8 +3,10 @@ cx18-objs := cx18-driver.o cx18-cards.o cx18-i2c.o cx18-firmware.o cx18-gpio.
cx18-mailbox.o cx18-vbi.o cx18-audio.o cx18-video.o cx18-irq.o \
cx18-av-core.o cx18-av-audio.o cx18-av-firmware.o cx18-av-vbi.o cx18-scb.o \
cx18-dvb.o cx18-io.o
+cx18-alsa-objs := cx18-alsa-main.o cx18-alsa-pcm.o
obj-$(CONFIG_VIDEO_CX18) += cx18.o
+obj-$(CONFIG_VIDEO_CX18_ALSA) += cx18-alsa.o
EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
EXTRA_CFLAGS += -Idrivers/media/dvb/frontends
diff --git a/drivers/media/video/cx18/cx18-alsa-main.c b/drivers/media/video/cx18/cx18-alsa-main.c
new file mode 100644
index 00000000000..eb41d7ec65b
--- /dev/null
+++ b/drivers/media/video/cx18/cx18-alsa-main.c
@@ -0,0 +1,293 @@
+/*
+ * ALSA interface to cx18 PCM capture streams
+ *
+ * Copyright (C) 2009 Andy Walls <awalls@radix.net>
+ * Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * Portions of this work were sponsored by ONELAN Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/spinlock.h>
+
+#include <media/v4l2-device.h>
+
+#include <sound/core.h>
+#include <sound/initval.h>
+
+#include "cx18-driver.h"
+#include "cx18-version.h"
+#include "cx18-alsa.h"
+#include "cx18-alsa-mixer.h"
+#include "cx18-alsa-pcm.h"
+
+int cx18_alsa_debug;
+
+#define CX18_DEBUG_ALSA_INFO(fmt, arg...) \
+ do { \
+ if (cx18_alsa_debug & 2) \
+ printk(KERN_INFO "%s: " fmt, "cx18-alsa", ## arg); \
+ } while (0);
+
+module_param_named(debug, cx18_alsa_debug, int, 0644);
+MODULE_PARM_DESC(debug,
+ "Debug level (bitmask). Default: 0\n"
+ "\t\t\t 1/0x0001: warning\n"
+ "\t\t\t 2/0x0002: info\n");
+
+MODULE_AUTHOR("Andy Walls");
+MODULE_DESCRIPTION("CX23418 ALSA Interface");
+MODULE_SUPPORTED_DEVICE("CX23418 MPEG2 encoder");
+MODULE_LICENSE("GPL");
+
+MODULE_VERSION(CX18_VERSION);
+
+static inline
+struct snd_cx18_card *to_snd_cx18_card(struct v4l2_device *v4l2_dev)
+{
+ return to_cx18(v4l2_dev)->alsa;
+}
+
+static inline
+struct snd_cx18_card *p_to_snd_cx18_card(struct v4l2_device **v4l2_dev)
+{
+ return container_of(v4l2_dev, struct snd_cx18_card, v4l2_dev);
+}
+
+static void snd_cx18_card_free(struct snd_cx18_card *cxsc)
+{
+ if (cxsc == NULL)
+ return;
+
+ if (cxsc->v4l2_dev != NULL)
+ to_cx18(cxsc->v4l2_dev)->alsa = NULL;
+
+ /* FIXME - take any other stopping actions needed */
+
+ kfree(cxsc);
+}
+
+static void snd_cx18_card_private_free(struct snd_card *sc)
+{
+ if (sc == NULL)
+ return;
+ snd_cx18_card_free(sc->private_data);
+ sc->private_data = NULL;
+ sc->private_free = NULL;
+}
+
+static int snd_cx18_card_create(struct v4l2_device *v4l2_dev,
+ struct snd_card *sc,
+ struct snd_cx18_card **cxsc)
+{
+ *cxsc = kzalloc(sizeof(struct snd_cx18_card), GFP_KERNEL);
+ if (*cxsc == NULL)
+ return -ENOMEM;
+
+ (*cxsc)->v4l2_dev = v4l2_dev;
+ (*cxsc)->sc = sc;
+
+ sc->private_data = *cxsc;
+ sc->private_free = snd_cx18_card_private_free;
+
+ return 0;
+}
+
+static int snd_cx18_card_set_names(struct snd_cx18_card *cxsc)
+{
+ struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
+ struct snd_card *sc = cxsc->sc;
+
+ /* sc->driver is used by alsa-lib's configurator: simple, unique */
+ strlcpy(sc->driver, "CX23418", sizeof(sc->driver));
+
+ /* sc->shortname is a symlink in /proc/asound: CX18-M -> cardN */
+ snprintf(sc->shortname, sizeof(sc->shortname), "CX18-%d",
+ cx->instance);
+
+ /* sc->longname is read from /proc/asound/cards */
+ snprintf(sc->longname, sizeof(sc->longname),
+ "CX23418 #%d %s TV/FM Radio/Line-In Capture",
+ cx->instance, cx->card_name);
+
+ return 0;
+}
+
+static int snd_cx18_init(struct v4l2_device *v4l2_dev)
+{
+ struct cx18 *cx = to_cx18(v4l2_dev);
+ struct snd_card *sc = NULL;
+ struct snd_cx18_card *cxsc;
+ int ret;
+
+ /* Numbrs steps from "Writing an ALSA Driver" by Takashi Iwai */
+
+ /* (1) Check and increment the device index */
+ /* This is a no-op for us. We'll use the cx->instance */
+
+ /* (2) Create a card instance */
+ ret = snd_card_create(SNDRV_DEFAULT_IDX1, /* use first available id */
+ SNDRV_DEFAULT_STR1, /* xid from end of shortname*/
+ THIS_MODULE, 0, &sc);
+ if (ret) {
+ CX18_ALSA_ERR("%s: snd_card_create() failed with err %d\n",
+ __func__, ret);
+ goto err_exit;
+ }
+
+ /* (3) Create a main component */
+ ret = snd_cx18_card_create(v4l2_dev, sc, &cxsc);
+ if (ret) {
+ CX18_ALSA_ERR("%s: snd_cx18_card_create() failed with err %d\n",
+ __func__, ret);
+ goto err_exit_free;
+ }
+
+ /* (4) Set the driver ID and name strings */
+ snd_cx18_card_set_names(cxsc);
+
+
+ ret = snd_cx18_pcm_create(cxsc);
+ if (ret) {
+ CX18_ALSA_ERR("%s: snd_cx18_pcm_create() failed with err %d\n",
+ __func__, ret);
+ goto err_exit_free;
+ }
+ /* FIXME - proc files */
+
+ /* (7) Set the driver data and return 0 */
+ /* We do this out of normal order for PCI drivers to avoid races */
+ cx->alsa = cxsc;
+
+ /* (6) Register the card instance */
+ ret = snd_card_register(sc);
+ if (ret) {
+ cx->alsa = NULL;
+ CX18_ALSA_ERR("%s: snd_card_register() failed with err %d\n",
+ __func__, ret);
+ goto err_exit_free;
+ }
+
+ return 0;
+
+err_exit_free:
+ if (sc != NULL)
+ snd_card_free(sc);
+err_exit:
+ return ret;
+}
+
+int cx18_alsa_load(struct cx18 *cx)
+{
+ struct v4l2_device *v4l2_dev = &cx->v4l2_dev;
+ struct cx18_stream *s;
+
+ if (v4l2_dev == NULL) {
+ printk(KERN_ERR "cx18-alsa: %s: struct v4l2_device * is NULL\n",
+ __func__);
+ return 0;
+ }
+
+ cx = to_cx18(v4l2_dev);
+ if (cx == NULL) {
+ printk(KERN_ERR "cx18-alsa cx is NULL\n");
+ return 0;
+ }
+
+ s = &cx->streams[CX18_ENC_STREAM_TYPE_PCM];
+ if (s->video_dev == NULL) {
+ CX18_DEBUG_ALSA_INFO("%s: PCM stream for card is disabled - "
+ "skipping\n", __func__);
+ return 0;
+ }
+
+ if (cx->alsa != NULL) {
+ CX18_ALSA_ERR("%s: struct snd_cx18_card * already exists\n",
+ __func__);
+ return 0;
+ }
+
+ if (snd_cx18_init(v4l2_dev)) {
+ CX18_ALSA_ERR("%s: failed to create struct snd_cx18_card\n",
+ __func__);
+ } else {
+ CX18_DEBUG_ALSA_INFO("%s: created cx18 ALSA interface instance "
+ "\n", __func__);
+ }
+ return 0;
+}
+
+static int __init cx18_alsa_init(void)
+{
+ printk(KERN_INFO "cx18-alsa: module loading...\n");
+ cx18_ext_init = &cx18_alsa_load;
+ return 0;
+}
+
+static void __exit snd_cx18_exit(struct snd_cx18_card *cxsc)
+{
+ struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
+
+ /* FIXME - pointer checks & shutdown cxsc */
+
+ snd_card_free(cxsc->sc);
+ cx->alsa = NULL;
+}
+
+static int __exit cx18_alsa_exit_callback(struct device *dev, void *data)
+{
+ struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
+ struct snd_cx18_card *cxsc;
+
+ if (v4l2_dev == NULL) {
+ printk(KERN_ERR "cx18-alsa: %s: struct v4l2_device * is NULL\n",
+ __func__);
+ return 0;
+ }
+
+ cxsc = to_snd_cx18_card(v4l2_dev);
+ if (cxsc == NULL) {
+ CX18_ALSA_WARN("%s: struct snd_cx18_card * is NULL\n",
+ __func__);
+ return 0;
+ }
+
+ snd_cx18_exit(cxsc);
+ return 0;
+}
+
+static void __exit cx18_alsa_exit(void)
+{
+ struct device_driver *drv;
+ int ret;
+
+ printk(KERN_INFO "cx18-alsa: module unloading...\n");
+
+ drv = driver_find("cx18", &pci_bus_type);
+ ret = driver_for_each_device(drv, NULL, NULL, cx18_alsa_exit_callback);
+ put_driver(drv);
+
+ cx18_ext_init = NULL;
+ printk(KERN_INFO "cx18-alsa: module unload complete\n");
+}
+
+module_init(cx18_alsa_init);
+module_exit(cx18_alsa_exit);
diff --git a/drivers/media/video/cx18/cx18-alsa-mixer.c b/drivers/media/video/cx18/cx18-alsa-mixer.c
new file mode 100644
index 00000000000..ef21114309f
--- /dev/null
+++ b/drivers/media/video/cx18/cx18-alsa-mixer.c
@@ -0,0 +1,175 @@
+/*
+ * ALSA mixer controls for the
+ * ALSA interface to cx18 PCM capture streams
+ *
+ * Copyright (C) 2009 Andy Walls <awalls@radix.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/spinlock.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-device.h>
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/tlv.h>
+
+#include "cx18-alsa.h"
+#include "cx18-driver.h"
+
+/*
+ * Note the cx18-av-core volume scale is funny, due to the alignment of the
+ * scale with another chip's range:
+ *
+ * v4l2_control value /512 indicated dB actual dB reg 0x8d4
+ * 0x0000 - 0x01ff 0 -119 -96 228
+ * 0x0200 - 0x02ff 1 -118 -96 228
+ * ...
+ * 0x2c00 - 0x2dff 22 -97 -96 228
+ * 0x2e00 - 0x2fff 23 -96 -96 228
+ * 0x3000 - 0x31ff 24 -95 -95 226
+ * ...
+ * 0xee00 - 0xefff 119 0 0 36
+ * ...
+ * 0xfe00 - 0xffff 127 +8 +8 20
+ */
+static inline int dB_to_cx18_av_vol(int dB)
+{
+ if (dB < -96)
+ dB = -96;
+ else if (dB > 8)
+ dB = 8;
+ return (dB + 119) << 9;
+}
+
+static inline int cx18_av_vol_to_dB(int v)
+{
+ if (v < (23 << 9))
+ v = (23 << 9);
+ else if (v > (127 << 9))
+ v = (127 << 9);
+ return (v >> 9) - 119;
+}
+
+static int snd_cx18_mixer_tv_vol_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ /* We're already translating values, just keep this control in dB */
+ uinfo->value.integer.min = -96;
+ uinfo->value.integer.max = 8;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+
+static int snd_cx18_mixer_tv_vol_get(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uctl)
+{
+ struct snd_cx18_card *cxsc = snd_kcontrol_chip(kctl);
+ struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
+ struct v4l2_control vctrl;
+ int ret;
+
+ vctrl.id = V4L2_CID_AUDIO_VOLUME;
+ vctrl.value = dB_to_cx18_av_vol(uctl->value.integer.value[0]);
+
+ snd_cx18_lock(cxsc);
+ ret = v4l2_subdev_call(cx->sd_av, core, g_ctrl, &vctrl);
+ snd_cx18_unlock(cxsc);
+
+ if (!ret)
+ uctl->value.integer.value[0] = cx18_av_vol_to_dB(vctrl.value);
+ return ret;
+}
+
+static int snd_cx18_mixer_tv_vol_put(struct snd_kcontrol *kctl,
+ struct snd_ctl_elem_value *uctl)
+{
+ struct snd_cx18_card *cxsc = snd_kcontrol_chip(kctl);
+ struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
+ struct v4l2_control vctrl;
+ int ret;
+
+ vctrl.id = V4L2_CID_AUDIO_VOLUME;
+ vctrl.value = dB_to_cx18_av_vol(uctl->value.integer.value[0]);
+
+ snd_cx18_lock(cxsc);
+
+ /* Fetch current state */
+ ret = v4l2_subdev_call(cx->sd_av, core, g_ctrl, &vctrl);
+
+ if (ret ||
+ (cx18_av_vol_to_dB(vctrl.value) != uctl->value.integer.value[0])) {
+
+ /* Set, if needed */
+ vctrl.value = dB_to_cx18_av_vol(uctl->value.integer.value[0]);
+ ret = v4l2_subdev_call(cx->sd_av, core, s_ctrl, &vctrl);
+ if (!ret)
+ ret = 1; /* Indicate control was changed w/o error */
+ }
+ snd_cx18_unlock(cxsc);
+
+ return ret;
+}
+
+
+/* This is a bit of overkill, the slider is already in dB internally */
+static DECLARE_TLV_DB_SCALE(snd_cx18_mixer_tv_vol_db_scale, -9600, 100, 0);
+
+static struct snd_kcontrol_new snd_cx18_mixer_tv_vol __initdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Analog TV Capture Volume",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .info = snd_cx18_mixer_tv_volume_info,
+ .get = snd_cx18_mixer_tv_volume_get,
+ .put = snd_cx18_mixer_tv_volume_put,
+ .tlv.p = snd_cx18_mixer_tv_vol_db_scale
+};
+
+/* FIXME - add mute switch and balance, bass, treble sliders:
+ V4L2_CID_AUDIO_MUTE
+
+ V4L2_CID_AUDIO_BALANCE
+
+ V4L2_CID_AUDIO_BASS
+ V4L2_CID_AUDIO_TREBLE
+*/
+
+/* FIXME - add stereo, lang1, lang2, mono menu */
+/* FIXME - add CS5345 I2S volume for HVR-1600 */
+
+int __init snd_cx18_mixer_create(struct snd_cx18_card *cxsc)
+{
+ struct v4l2_device *v4l2_dev = cxsc->v4l2_dev;
+ struct snd_card *sc = cxsc->sc;
+ int ret;
+
+ strlcpy(sc->mixername, "CX23418 Mixer", sizeof(sc->mixername));
+
+ ret = snd_ctl_add(sc, snd_ctl_new1(snd_cx18_mixer_tv_vol, cxsc));
+ if (ret) {
+ CX18_ALSA_WARN("%s: failed to add %s control, err %d\n",
+ __func__, snd_cx18_mixer_tv_vol.name, ret);
+ }
+ return ret;
+}
diff --git a/drivers/media/video/cx18/cx18-alsa-mixer.h b/drivers/media/video/cx18/cx18-alsa-mixer.h
new file mode 100644
index 00000000000..2d418db000f
--- /dev/null
+++ b/drivers/media/video/cx18/cx18-alsa-mixer.h
@@ -0,0 +1,23 @@
+/*
+ * ALSA mixer controls for the
+ * ALSA interface to cx18 PCM capture streams
+ *
+ * Copyright (C) 2009 Andy Walls <awalls@radix.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ */
+
+int __init snd_cx18_mixer_create(struct snd_cx18_card *cxsc);
diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.c b/drivers/media/video/cx18/cx18-alsa-pcm.c
new file mode 100644
index 00000000000..2bd312daeb1
--- /dev/null
+++ b/drivers/media/video/cx18/cx18-alsa-pcm.c
@@ -0,0 +1,354 @@
+/*
+ * ALSA PCM device for the
+ * ALSA interface to cx18 PCM capture streams
+ *
+ * Copyright (C) 2009 Andy Walls <awalls@radix.net>
+ * Copyright (C) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * Portions of this work were sponsored by ONELAN Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/vmalloc.h>
+
+#include <media/v4l2-device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+
+#include "cx18-driver.h"
+#include "cx18-queue.h"
+#include "cx18-streams.h"
+#include "cx18-fileops.h"
+#include "cx18-alsa.h"
+
+static unsigned int pcm_debug;
+module_param(pcm_debug, int, 0644);
+MODULE_PARM_DESC(pcm_debug, "enable debug messages for pcm");
+
+#define dprintk(fmt, arg...) do { \
+ if (pcm_debug) \
+ printk(KERN_INFO "cx18-alsa-pcm %s: " fmt, \
+ __func__, ##arg); \
+ } while (0)
+
+static struct snd_pcm_hardware snd_cx18_hw_capture = {
+ .info = SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP_VALID,
+
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+
+ .rates = SNDRV_PCM_RATE_48000,
+
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = 62720 * 8, /* just about the value in usbaudio.c */
+ .period_bytes_min = 64, /* 12544/2, */
+ .period_bytes_max = 12544,
+ .periods_min = 2,
+ .periods_max = 98, /* 12544, */
+};
+
+void cx18_alsa_announce_pcm_data(struct snd_cx18_card *cxsc, u8 *pcm_data,
+ size_t num_bytes)
+{
+ struct snd_pcm_substream *substream;
+ struct snd_pcm_runtime *runtime;
+ unsigned int oldptr;
+ unsigned int stride;
+ int period_elapsed = 0;
+ int length;
+
+ dprintk("cx18 alsa announce ptr=%p data=%p num_bytes=%zd\n", cxsc,
+ pcm_data, num_bytes);
+
+ substream = cxsc->capture_pcm_substream;
+ if (substream == NULL) {
+ dprintk("substream was NULL\n");
+ return;
+ }
+
+ runtime = substream->runtime;
+ if (runtime == NULL) {
+ dprintk("runtime was NULL\n");
+ return;
+ }
+
+ stride = runtime->frame_bits >> 3;
+ if (stride == 0) {
+ dprintk("stride is zero\n");
+ return;
+ }
+
+ length = num_bytes / stride;
+ if (length == 0) {
+ dprintk("%s: length was zero\n", __func__);
+ return;
+ }
+
+ if (runtime->dma_area == NULL) {
+ dprintk("dma area was NULL - ignoring\n");
+ return;
+ }
+
+ oldptr = cxsc->hwptr_done_capture;
+ if (oldptr + length >= runtime->buffer_size) {
+ unsigned int cnt =
+ runtime->buffer_size - oldptr;
+ memcpy(runtime->dma_area + oldptr * stride, pcm_data,
+ cnt * stride);
+ memcpy(runtime->dma_area, pcm_data + cnt * stride,
+ length * stride - cnt * stride);
+ } else {
+ memcpy(runtime->dma_area + oldptr * stride, pcm_data,
+ length * stride);
+ }
+ snd_pcm_stream_lock(substream);
+
+ cxsc->hwptr_done_capture += length;
+ if (cxsc->hwptr_done_capture >=
+ runtime->buffer_size)
+ cxsc->hwptr_done_capture -=
+ runtime->buffer_size;
+
+ cxsc->capture_transfer_done += length;
+ if (cxsc->capture_transfer_done >=
+ runtime->period_size) {
+ cxsc->capture_transfer_done -=
+ runtime->period_size;
+ period_elapsed = 1;
+ }
+
+ snd_pcm_stream_unlock(substream);
+
+ if (period_elapsed)
+ snd_pcm_period_elapsed(substream);
+}
+
+static int snd_cx18_pcm_capture_open(struct snd_pcm_substream *substream)
+{
+ struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct v4l2_device *v4l2_dev = cxsc->v4l2_dev;
+ struct cx18 *cx = to_cx18(v4l2_dev);
+ struct cx18_stream *s;
+ struct cx18_open_id item;
+ int ret;
+
+ /* Instruct the cx18 to start sending packets */
+ snd_cx18_lock(cxsc);
+ s = &cx->streams[CX18_ENC_STREAM_TYPE_PCM];
+
+ item.cx = cx;
+ item.type = s->type;
+ item.open_id = cx->open_id++;
+
+ /* See if the stream is available */
+ if (cx18_claim_stream(&item, item.type)) {
+ /* No, it's already in use */
+ snd_cx18_unlock(cxsc);
+ return -EBUSY;
+ }
+
+ if (test_bit(CX18_F_S_STREAMOFF, &s->s_flags) ||
+ test_and_set_bit(CX18_F_S_STREAMING, &s->s_flags)) {
+ /* We're already streaming. No additional action required */
+ snd_cx18_unlock(cxsc);
+ return 0;
+ }
+
+
+ runtime->hw = snd_cx18_hw_capture;
+ snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ cxsc->capture_pcm_substream = substream;
+ runtime->private_data = cx;
+
+ cx->pcm_announce_callback = cx18_alsa_announce_pcm_data;
+
+ /* Not currently streaming, so start it up */
+ set_bit(CX18_F_S_STREAMING, &s->s_flags);
+ ret = cx18_start_v4l2_encode_stream(s);
+ snd_cx18_unlock(cxsc);
+
+ return 0;
+}
+
+static int snd_cx18_pcm_capture_close(struct snd_pcm_substream *substream)
+{
+ struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
+ struct v4l2_device *v4l2_dev = cxsc->v4l2_dev;
+ struct cx18 *cx = to_cx18(v4l2_dev);
+ struct cx18_stream *s;
+ int ret;
+
+ /* Instruct the cx18 to stop sending packets */
+ snd_cx18_lock(cxsc);
+ s = &cx->streams[CX18_ENC_STREAM_TYPE_PCM];
+ ret = cx18_stop_v4l2_encode_stream(s, 0);
+ clear_bit(CX18_F_S_STREAMING, &s->s_flags);
+
+ cx18_release_stream(s);
+
+ cx->pcm_announce_callback = NULL;
+ snd_cx18_unlock(cxsc);
+
+ return 0;
+}
+
+static int snd_cx18_pcm_ioctl(struct snd_pcm_substream *substream,
+ unsigned int cmd, void *arg)
+{
+ return snd_pcm_lib_ioctl(substream, cmd, arg);
+}
+
+
+static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs,
+ size_t size)
+{
+ struct snd_pcm_runtime *runtime = subs->runtime;
+
+ dprintk("Allocating vbuffer\n");
+ if (runtime->dma_area) {
+ if (runtime->dma_bytes > size)
+ return 0;
+
+ vfree(runtime->dma_area);
+ }
+ runtime->dma_area = vmalloc(size);
+ if (!runtime->dma_area)
+ return -ENOMEM;
+
+ runtime->dma_bytes = size;
+
+ return 0;
+}
+
+static int snd_cx18_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ int ret;
+
+ dprintk("%s called\n", __func__);
+
+ ret = snd_pcm_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(params));
+ return 0;
+}
+
+static int snd_cx18_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
+ unsigned long flags;
+
+ spin_lock_irqsave(&cxsc->slock, flags);
+ if (substream->runtime->dma_area) {
+ dprintk("freeing pcm capture region\n");
+ vfree(substream->runtime->dma_area);
+ substream->runtime->dma_area = NULL;
+ }
+ spin_unlock_irqrestore(&cxsc->slock, flags);
+
+ return 0;
+}
+
+static int snd_cx18_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
+
+ cxsc->hwptr_done_capture = 0;
+ cxsc->capture_transfer_done = 0;
+
+ return 0;
+}
+
+static int snd_cx18_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ return 0;
+}
+
+static
+snd_pcm_uframes_t snd_cx18_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ unsigned long flags;
+ snd_pcm_uframes_t hwptr_done;
+ struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
+
+ spin_lock_irqsave(&cxsc->slock, flags);
+ hwptr_done = cxsc->hwptr_done_capture;
+ spin_unlock_irqrestore(&cxsc->slock, flags);
+
+ return hwptr_done;
+}
+
+static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
+ unsigned long offset)
+{
+ void *pageptr = subs->runtime->dma_area + offset;
+
+ return vmalloc_to_page(pageptr);
+}
+
+static struct snd_pcm_ops snd_cx18_pcm_capture_ops = {
+ .open = snd_cx18_pcm_capture_open,
+ .close = snd_cx18_pcm_capture_close,
+ .ioctl = snd_cx18_pcm_ioctl,
+ .hw_params = snd_cx18_pcm_hw_params,
+ .hw_free = snd_cx18_pcm_hw_free,
+ .prepare = snd_cx18_pcm_prepare,
+ .trigger = snd_cx18_pcm_trigger,
+ .pointer = snd_cx18_pcm_pointer,
+ .page = snd_pcm_get_vmalloc_page,
+};
+
+int snd_cx18_pcm_create(struct snd_cx18_card *cxsc)
+{
+ struct snd_pcm *sp;
+ struct snd_card *sc = cxsc->sc;
+ struct v4l2_device *v4l2_dev = cxsc->v4l2_dev;
+ struct cx18 *cx = to_cx18(v4l2_dev);
+ int ret;
+
+ ret = snd_pcm_new(sc, "CX23418 PCM",
+ 0, /* PCM device 0, the only one for this card */
+ 0, /* 0 playback substreams */
+ 1, /* 1 capture substream */
+ &sp);
+ if (ret) {
+ CX18_ALSA_ERR("%s: snd_cx18_pcm_create() failed with err %d\n",
+ __func__, ret);
+ goto err_exit;
+ }
+
+ spin_lock_init(&cxsc->slock);
+
+ snd_pcm_set_ops(sp, SNDRV_PCM_STREAM_CAPTURE,
+ &snd_cx18_pcm_capture_ops);
+ sp->info_flags = 0;
+ sp->private_data = cxsc;
+ strlcpy(sp->name, cx->card_name, sizeof(sp->name));
+
+ return 0;
+
+err_exit:
+ return ret;
+}
diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.h b/drivers/media/video/cx18/cx18-alsa-pcm.h
new file mode 100644
index 00000000000..325662c647a
--- /dev/null
+++ b/drivers/media/video/cx18/cx18-alsa-pcm.h
@@ -0,0 +1,27 @@
+/*
+ * ALSA PCM device for the
+ * ALSA interface to cx18 PCM capture streams
+ *
+ * Copyright (C) 2009 Andy Walls <awalls@radix.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ */
+
+int __init snd_cx18_pcm_create(struct snd_cx18_card *cxsc);
+
+/* Used by cx18-mailbox to announce the PCM data to the module */
+void cx18_alsa_announce_pcm_data(struct snd_cx18_card *card, u8 *pcm_data,
+ size_t num_bytes);
diff --git a/drivers/media/video/cx18/cx18-alsa.h b/drivers/media/video/cx18/cx18-alsa.h
new file mode 100644
index 00000000000..88a1cde7540
--- /dev/null
+++ b/drivers/media/video/cx18/cx18-alsa.h
@@ -0,0 +1,75 @@
+/*
+ * ALSA interface to cx18 PCM capture streams
+ *
+ * Copyright (C) 2009 Andy Walls <awalls@radix.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ */
+
+struct snd_card;
+
+struct snd_cx18_card {
+ struct v4l2_device *v4l2_dev;
+ struct snd_card *sc;
+ unsigned int capture_transfer_done;
+ unsigned int hwptr_done_capture;
+ struct snd_pcm_substream *capture_pcm_substream;
+ spinlock_t slock;
+};
+
+extern int cx18_alsa_debug;
+
+/*
+ * File operations that manipulate the encoder or video or audio subdevices
+ * need to be serialized. Use the same lock we use for v4l2 file ops.
+ */
+static inline void snd_cx18_lock(struct snd_cx18_card *cxsc)
+{
+ struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
+ mutex_lock(&cx->serialize_lock);
+}
+
+static inline void snd_cx18_unlock(struct snd_cx18_card *cxsc)
+{
+ struct cx18 *cx = to_cx18(cxsc->v4l2_dev);
+ mutex_unlock(&cx->serialize_lock);
+}
+
+#define CX18_ALSA_DBGFLG_WARN (1 << 0)
+#define CX18_ALSA_DBGFLG_WARN (1 << 0)
+#define CX18_ALSA_DBGFLG_INFO (1 << 1)
+
+#define CX18_ALSA_DEBUG(x, type, fmt, args...) \
+ do { \
+ if ((x) & cx18_alsa_debug) \
+ printk(KERN_INFO "%s-alsa: " type ": " fmt, \
+ v4l2_dev->name , ## args); \
+ } while (0)
+
+#define CX18_ALSA_DEBUG_WARN(fmt, args...) \
+ CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_WARN, "warning", fmt , ## args)
+
+#define CX18_ALSA_DEBUG_INFO(fmt, args...) \
+ CX18_ALSA_DEBUG(CX18_ALSA_DBGFLG_INFO, "info", fmt , ## args)
+
+#define CX18_ALSA_ERR(fmt, args...) \
+ printk(KERN_ERR "%s-alsa: " fmt, v4l2_dev->name , ## args)
+
+#define CX18_ALSA_WARN(fmt, args...) \
+ printk(KERN_WARNING "%s-alsa: " fmt, v4l2_dev->name , ## args)
+
+#define CX18_ALSA_INFO(fmt, args...) \
+ printk(KERN_INFO "%s-alsa: " fmt, v4l2_dev->name , ## args)
diff --git a/drivers/media/video/cx18/cx18-cards.c b/drivers/media/video/cx18/cx18-cards.c
index f11e47a5828..f808fb6fc1c 100644
--- a/drivers/media/video/cx18/cx18-cards.c
+++ b/drivers/media/video/cx18/cx18-cards.c
@@ -393,7 +393,7 @@ static const struct cx18_card cx18_card_leadtek_pvr2100 = {
.gpio_init.direction = 0x7,
.gpio_audio_input = { .mask = 0x7,
.tuner = 0x6, .linein = 0x2, .radio = 0x2 },
- .xceive_pin = 15,
+ .xceive_pin = 1,
.pci_list = cx18_pci_leadtek_pvr2100,
.i2c = &cx18_i2c_std,
};
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 7f65a47f12e..c95a86ba33b 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -47,6 +47,10 @@
setting this to 1 you ensure that radio0 is now also radio1. */
int cx18_first_minor;
+/* Callback for registering extensions */
+int (*cx18_ext_init)(struct cx18 *);
+EXPORT_SYMBOL(cx18_ext_init);
+
/* add your revision and whatnot here */
static struct pci_device_id cx18_pci_tbl[] __devinitdata = {
{PCI_VENDOR_ID_CX, PCI_DEVICE_ID_CX23418,
@@ -91,7 +95,7 @@ static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE;
static int enc_ts_bufs = -1;
static int enc_mpg_bufs = -1;
-static int enc_idx_bufs = -1;
+static int enc_idx_bufs = CX18_MAX_FW_MDLS_PER_STREAM;
static int enc_yuv_bufs = -1;
static int enc_vbi_bufs = -1;
static int enc_pcm_bufs = -1;
@@ -196,14 +200,17 @@ MODULE_PARM_DESC(enc_mpg_bufs,
"Number of encoder MPG buffers\n"
"\t\t\tDefault is computed from other enc_mpg_* parameters");
MODULE_PARM_DESC(enc_idx_buffers,
- "Encoder IDX buffer memory (MB). (enc_idx_bufs can override)\n"
- "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFFERS));
+ "(Deprecated) Encoder IDX buffer memory (MB)\n"
+ "\t\t\tIgnored, except 0 disables IDX buffer allocations\n"
+ "\t\t\tDefault: 1 [Enabled]");
MODULE_PARM_DESC(enc_idx_bufsize,
"Size of an encoder IDX buffer (kB)\n"
- "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFSIZE));
+ "\t\t\tAllowed values are multiples of 1.5 kB rounded up\n"
+ "\t\t\t(multiples of size required for 64 index entries)\n"
+ "\t\t\tDefault: 2");
MODULE_PARM_DESC(enc_idx_bufs,
"Number of encoder IDX buffers\n"
- "\t\t\tDefault is computed from other enc_idx_* parameters");
+ "\t\t\tDefault: " __stringify(CX18_MAX_FW_MDLS_PER_STREAM));
MODULE_PARM_DESC(enc_yuv_buffers,
"Encoder YUV buffer memory (MB). (enc_yuv_bufs can override)\n"
"\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS));
@@ -231,7 +238,8 @@ MODULE_PARM_DESC(enc_pcm_bufs,
"Number of encoder PCM buffers\n"
"\t\t\tDefault is computed from other enc_pcm_* parameters");
-MODULE_PARM_DESC(cx18_first_minor, "Set device node number assigned to first card");
+MODULE_PARM_DESC(cx18_first_minor,
+ "Set device node number assigned to first card");
MODULE_AUTHOR("Hans Verkuil");
MODULE_DESCRIPTION("CX23418 driver");
@@ -240,6 +248,28 @@ MODULE_LICENSE("GPL");
MODULE_VERSION(CX18_VERSION);
+#if defined(CONFIG_MODULES) && defined(MODULE)
+static void request_module_async(struct work_struct *work)
+{
+ struct cx18 *dev = container_of(work, struct cx18, request_module_wk);
+
+ /* Make sure cx18-alsa module is loaded */
+ request_module("cx18-alsa");
+
+ /* Initialize cx18-alsa for this instance of the cx18 device */
+ if (cx18_ext_init != NULL)
+ cx18_ext_init(dev);
+}
+
+static void request_modules(struct cx18 *dev)
+{
+ INIT_WORK(&dev->request_module_wk, request_module_async);
+ schedule_work(&dev->request_module_wk);
+}
+#else
+#define request_modules(dev)
+#endif /* CONFIG_MODULES */
+
/* Generic utility functions */
int cx18_msleep_timeout(unsigned int msecs, int intr)
{
@@ -501,7 +531,12 @@ static void cx18_process_options(struct cx18 *cx)
/*
* YUV is a special case where the stream_buf_size needs to be
* an integral multiple of 33.75 kB (storage for 32 screens
- * lines to maintain alignment in case of lost buffers
+ * lines to maintain alignment in case of lost buffers).
+ *
+ * IDX is a special case where the stream_buf_size should be
+ * an integral multiple of 1.5 kB (storage for 64 index entries
+ * to maintain alignment in case of lost buffers).
+ *
*/
if (i == CX18_ENC_STREAM_TYPE_YUV) {
cx->stream_buf_size[i] *= 1024;
@@ -511,15 +546,24 @@ static void cx18_process_options(struct cx18 *cx)
if (cx->stream_buf_size[i] < CX18_UNIT_ENC_YUV_BUFSIZE)
cx->stream_buf_size[i] =
CX18_UNIT_ENC_YUV_BUFSIZE;
+ } else if (i == CX18_ENC_STREAM_TYPE_IDX) {
+ cx->stream_buf_size[i] *= 1024;
+ cx->stream_buf_size[i] -=
+ (cx->stream_buf_size[i] % CX18_UNIT_ENC_IDX_BUFSIZE);
+
+ if (cx->stream_buf_size[i] < CX18_UNIT_ENC_IDX_BUFSIZE)
+ cx->stream_buf_size[i] =
+ CX18_UNIT_ENC_IDX_BUFSIZE;
}
/*
- * YUV is a special case where the stream_buf_size is
+ * YUV and IDX are special cases where the stream_buf_size is
* now in bytes.
* VBI is a special case where the stream_buf_size is fixed
* and already in bytes
*/
if (i == CX18_ENC_STREAM_TYPE_VBI ||
- i == CX18_ENC_STREAM_TYPE_YUV) {
+ i == CX18_ENC_STREAM_TYPE_YUV ||
+ i == CX18_ENC_STREAM_TYPE_IDX) {
if (cx->stream_buffers[i] < 0) {
cx->stream_buffers[i] =
cx->options.megabytes[i] * 1024 * 1024
@@ -1032,6 +1076,10 @@ static int __devinit cx18_probe(struct pci_dev *pci_dev,
}
CX18_INFO("Initialized card: %s\n", cx->card_name);
+
+ /* Load cx18 submodules (cx18-alsa) */
+ request_modules(cx);
+
return 0;
free_streams:
@@ -1220,6 +1268,7 @@ static void cx18_remove(struct pci_dev *pci_dev)
kfree(cx);
}
+
/* define a pci_driver for card detection */
static struct pci_driver cx18_pci_driver = {
.name = "cx18",
@@ -1230,7 +1279,8 @@ static struct pci_driver cx18_pci_driver = {
static int __init module_start(void)
{
- printk(KERN_INFO "cx18: Start initialization, version %s\n", CX18_VERSION);
+ printk(KERN_INFO "cx18: Start initialization, version %s\n",
+ CX18_VERSION);
/* Validate parameters */
if (cx18_first_minor < 0 || cx18_first_minor >= CX18_MAX_CARDS) {
diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h
index e3f7911a738..23ad6d548dc 100644
--- a/drivers/media/video/cx18/cx18-driver.h
+++ b/drivers/media/video/cx18/cx18-driver.h
@@ -126,10 +126,22 @@
#define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32)
#define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32)
+/* IDX buffer size should be a multiple of the index entry size from the chip */
+struct cx18_enc_idx_entry {
+ __le32 length;
+ __le32 offset_low;
+ __le32 offset_high;
+ __le32 flags;
+ __le32 pts_low;
+ __le32 pts_high;
+} __attribute__ ((packed));
+#define CX18_UNIT_ENC_IDX_BUFSIZE \
+ (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES)
+
/* DMA buffer, default size in kB allocated */
#define CX18_DEFAULT_ENC_TS_BUFSIZE 32
#define CX18_DEFAULT_ENC_MPG_BUFSIZE 32
-#define CX18_DEFAULT_ENC_IDX_BUFSIZE 32
+#define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1)
#define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1)
#define CX18_DEFAULT_ENC_PCM_BUFSIZE 4
@@ -234,16 +246,8 @@
#define CX18_WARN_DEV(dev, fmt, args...) v4l2_warn(dev, fmt , ## args)
#define CX18_INFO_DEV(dev, fmt, args...) v4l2_info(dev, fmt , ## args)
-/* Values for CX18_API_DEC_PLAYBACK_SPEED mpeg_frame_type_mask parameter: */
-#define MPEG_FRAME_TYPE_IFRAME 1
-#define MPEG_FRAME_TYPE_IFRAME_PFRAME 3
-#define MPEG_FRAME_TYPE_ALL 7
-
-#define CX18_MAX_PGM_INDEX (400)
-
extern int cx18_debug;
-
struct cx18_options {
int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */
int cardtype; /* force card type on load */
@@ -276,6 +280,18 @@ struct cx18_options {
#define CX18_SLICED_TYPE_WSS_625 (5)
#define CX18_SLICED_TYPE_VPS (7)
+/**
+ * list_entry_is_past_end - check if a previous loop cursor is off list end
+ * @pos: the type * previously used as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Check if the entry's list_head is the head of the list, thus it's not a
+ * real entry but was the loop cursor that walked past the end
+ */
+#define list_entry_is_past_end(pos, head, member) \
+ (&pos->member == (head))
+
struct cx18_buffer {
struct list_head list;
dma_addr_t dma_handle;
@@ -558,6 +574,10 @@ struct cx18 {
int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */
int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */
struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */
+ struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */
+ void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data,
+ size_t num_bytes);
+
unsigned long i_flags; /* global cx18 flags */
atomic_t ana_capturing; /* count number of active analog capture streams */
atomic_t tot_capturing; /* total count number of active capture streams */
@@ -575,12 +595,6 @@ struct cx18 {
struct vbi_info vbi;
- u32 pgm_info_offset;
- u32 pgm_info_num;
- u32 pgm_info_write_idx;
- u32 pgm_info_read_idx;
- struct v4l2_enc_idx_entry pgm_info[CX18_MAX_PGM_INDEX];
-
u64 mpg_data_received;
u64 vbi_data_inserted;
@@ -623,6 +637,9 @@ struct cx18 {
u32 active_input;
v4l2_std_id std;
v4l2_std_id tuner_std; /* The norm of the tuner (fixed) */
+
+ /* Used for cx18-alsa module loading */
+ struct work_struct request_module_wk;
};
static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev)
@@ -630,6 +647,9 @@ static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev)
return container_of(v4l2_dev, struct cx18, v4l2_dev);
}
+/* cx18 extensions to be loaded */
+extern int (*cx18_ext_init)(struct cx18 *);
+
/* Globals */
extern int cx18_first_minor;
diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c
index 71ad2d1b4c2..0ae2c2e1eab 100644
--- a/drivers/media/video/cx18/cx18-dvb.c
+++ b/drivers/media/video/cx18/cx18-dvb.c
@@ -213,10 +213,14 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
- struct cx18 *cx = stream->cx;
+ struct cx18 *cx;
int ret;
u32 v;
+ if (!stream)
+ return -EINVAL;
+
+ cx = stream->cx;
CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
feed->pid, feed->index);
@@ -253,12 +257,10 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
if (!demux->dmx.frontend)
return -EINVAL;
- if (!stream)
- return -EINVAL;
-
mutex_lock(&stream->dvb.feedlock);
if (stream->dvb.feeding++ == 0) {
CX18_DEBUG_INFO("Starting Transport DMA\n");
+ mutex_lock(&cx->serialize_lock);
set_bit(CX18_F_S_STREAMING, &stream->s_flags);
ret = cx18_start_v4l2_encode_stream(stream);
if (ret < 0) {
@@ -267,6 +269,7 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
if (stream->dvb.feeding == 0)
clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
}
+ mutex_unlock(&cx->serialize_lock);
} else
ret = 0;
mutex_unlock(&stream->dvb.feedlock);
@@ -279,17 +282,20 @@ static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
- struct cx18 *cx = stream->cx;
+ struct cx18 *cx;
int ret = -EINVAL;
- CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
- feed->pid, feed->index);
-
if (stream) {
+ cx = stream->cx;
+ CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
+ feed->pid, feed->index);
+
mutex_lock(&stream->dvb.feedlock);
if (--stream->dvb.feeding == 0) {
CX18_DEBUG_INFO("Stopping Transport DMA\n");
+ mutex_lock(&cx->serialize_lock);
ret = cx18_stop_v4l2_encode_stream(stream, 0);
+ mutex_unlock(&cx->serialize_lock);
} else
ret = 0;
mutex_unlock(&stream->dvb.feedlock);
diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c
index c0885c69fd8..863ce775823 100644
--- a/drivers/media/video/cx18/cx18-fileops.c
+++ b/drivers/media/video/cx18/cx18-fileops.c
@@ -37,15 +37,21 @@
/* This function tries to claim the stream for a specific file descriptor.
If no one else is using this stream then the stream is claimed and
- associated VBI streams are also automatically claimed.
+ associated VBI and IDX streams are also automatically claimed.
Possible error returns: -EBUSY if someone else has claimed
the stream or 0 on success. */
-static int cx18_claim_stream(struct cx18_open_id *id, int type)
+int cx18_claim_stream(struct cx18_open_id *id, int type)
{
struct cx18 *cx = id->cx;
struct cx18_stream *s = &cx->streams[type];
- struct cx18_stream *s_vbi;
- int vbi_type;
+ struct cx18_stream *s_assoc;
+
+ /* Nothing should ever try to directly claim the IDX stream */
+ if (type == CX18_ENC_STREAM_TYPE_IDX) {
+ CX18_WARN("MPEG Index stream cannot be claimed "
+ "directly, but something tried.\n");
+ return -EINVAL;
+ }
if (test_and_set_bit(CX18_F_S_CLAIMED, &s->s_flags)) {
/* someone already claimed this stream */
@@ -67,32 +73,47 @@ static int cx18_claim_stream(struct cx18_open_id *id, int type)
}
s->id = id->open_id;
- /* CX18_ENC_STREAM_TYPE_MPG needs to claim CX18_ENC_STREAM_TYPE_VBI
- (provided VBI insertion is on and sliced VBI is selected), for all
- other streams we're done */
- if (type == CX18_ENC_STREAM_TYPE_MPG &&
- cx->vbi.insert_mpeg && !cx18_raw_vbi(cx)) {
- vbi_type = CX18_ENC_STREAM_TYPE_VBI;
- } else {
+ /*
+ * CX18_ENC_STREAM_TYPE_MPG needs to claim:
+ * CX18_ENC_STREAM_TYPE_VBI, if VBI insertion is on for sliced VBI, or
+ * CX18_ENC_STREAM_TYPE_IDX, if VBI insertion is off for sliced VBI
+ * (We don't yet fix up MPEG Index entries for our inserted packets).
+ *
+ * For all other streams we're done.
+ */
+ if (type != CX18_ENC_STREAM_TYPE_MPG)
return 0;
- }
- s_vbi = &cx->streams[vbi_type];
- set_bit(CX18_F_S_CLAIMED, &s_vbi->s_flags);
+ s_assoc = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ if (cx->vbi.insert_mpeg && !cx18_raw_vbi(cx))
+ s_assoc = &cx->streams[CX18_ENC_STREAM_TYPE_VBI];
+ else if (!cx18_stream_enabled(s_assoc))
+ return 0;
+
+ set_bit(CX18_F_S_CLAIMED, &s_assoc->s_flags);
/* mark that it is used internally */
- set_bit(CX18_F_S_INTERNAL_USE, &s_vbi->s_flags);
+ set_bit(CX18_F_S_INTERNAL_USE, &s_assoc->s_flags);
return 0;
}
+EXPORT_SYMBOL(cx18_claim_stream);
/* This function releases a previously claimed stream. It will take into
account associated VBI streams. */
-static void cx18_release_stream(struct cx18_stream *s)
+void cx18_release_stream(struct cx18_stream *s)
{
struct cx18 *cx = s->cx;
- struct cx18_stream *s_vbi;
+ struct cx18_stream *s_assoc;
s->id = -1;
+ if (s->type == CX18_ENC_STREAM_TYPE_IDX) {
+ /*
+ * The IDX stream is only used internally, and can
+ * only be indirectly unclaimed by unclaiming the MPG stream.
+ */
+ return;
+ }
+
if (s->type == CX18_ENC_STREAM_TYPE_VBI &&
test_bit(CX18_F_S_INTERNAL_USE, &s->s_flags)) {
/* this stream is still in use internally */
@@ -105,25 +126,36 @@ static void cx18_release_stream(struct cx18_stream *s)
cx18_flush_queues(s);
- /* CX18_ENC_STREAM_TYPE_MPG needs to release CX18_ENC_STREAM_TYPE_VBI,
- for all other streams we're done */
- if (s->type == CX18_ENC_STREAM_TYPE_MPG)
- s_vbi = &cx->streams[CX18_ENC_STREAM_TYPE_VBI];
- else
+ /*
+ * CX18_ENC_STREAM_TYPE_MPG needs to release the
+ * CX18_ENC_STREAM_TYPE_VBI and/or CX18_ENC_STREAM_TYPE_IDX streams.
+ *
+ * For all other streams we're done.
+ */
+ if (s->type != CX18_ENC_STREAM_TYPE_MPG)
return;
- /* clear internal use flag */
- if (!test_and_clear_bit(CX18_F_S_INTERNAL_USE, &s_vbi->s_flags)) {
- /* was already cleared */
- return;
+ /* Unclaim the associated MPEG Index stream */
+ s_assoc = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ if (test_and_clear_bit(CX18_F_S_INTERNAL_USE, &s_assoc->s_flags)) {
+ clear_bit(CX18_F_S_CLAIMED, &s_assoc->s_flags);
+ cx18_flush_queues(s_assoc);
}
- if (s_vbi->id != -1) {
- /* VBI stream still claimed by a file descriptor */
- return;
+
+ /* Unclaim the associated VBI stream */
+ s_assoc = &cx->streams[CX18_ENC_STREAM_TYPE_VBI];
+ if (test_and_clear_bit(CX18_F_S_INTERNAL_USE, &s_assoc->s_flags)) {
+ if (s_assoc->id == -1) {
+ /*
+ * The VBI stream is not still claimed by a file
+ * descriptor, so completely unclaim it.
+ */
+ clear_bit(CX18_F_S_CLAIMED, &s_assoc->s_flags);
+ cx18_flush_queues(s_assoc);
+ }
}
- clear_bit(CX18_F_S_CLAIMED, &s_vbi->s_flags);
- cx18_flush_queues(s_vbi);
}
+EXPORT_SYMBOL(cx18_release_stream);
static void cx18_dualwatch(struct cx18 *cx)
{
@@ -177,9 +209,7 @@ static struct cx18_mdl *cx18_get_mdl(struct cx18_stream *s, int non_block,
*err = 0;
while (1) {
if (s->type == CX18_ENC_STREAM_TYPE_MPG) {
- /* Process pending program info updates and pending
- VBI data */
-
+ /* Process pending program updates and VBI data */
if (time_after(jiffies, cx->dualwatch_jiffies + msecs_to_jiffies(1000))) {
cx->dualwatch_jiffies = jiffies;
cx18_dualwatch(cx);
@@ -362,18 +392,6 @@ static size_t cx18_copy_buf_to_user(struct cx18_stream *s,
return len;
}
-/**
- * list_entry_is_past_end - check if a previous loop cursor is off list end
- * @pos: the type * previously used as a loop cursor.
- * @head: the head for your list.
- * @member: the name of the list_struct within the struct.
- *
- * Check if the entry's list_head is the head of the list, thus it's not a
- * real entry but was the loop cursor that walked past the end
- */
-#define list_entry_is_past_end(pos, head, member) \
- (&pos->member == (head))
-
static size_t cx18_copy_mdl_to_user(struct cx18_stream *s,
struct cx18_mdl *mdl, char __user *ubuf, size_t ucount)
{
@@ -498,6 +516,7 @@ int cx18_start_capture(struct cx18_open_id *id)
struct cx18 *cx = id->cx;
struct cx18_stream *s = &cx->streams[id->type];
struct cx18_stream *s_vbi;
+ struct cx18_stream *s_idx;
if (s->type == CX18_ENC_STREAM_TYPE_RAD) {
/* you cannot read from these stream types. */
@@ -516,25 +535,33 @@ int cx18_start_capture(struct cx18_open_id *id)
return 0;
}
- /* Start VBI capture if required */
+ /* Start associated VBI or IDX stream capture if required */
s_vbi = &cx->streams[CX18_ENC_STREAM_TYPE_VBI];
- if (s->type == CX18_ENC_STREAM_TYPE_MPG &&
- test_bit(CX18_F_S_INTERNAL_USE, &s_vbi->s_flags) &&
- !test_and_set_bit(CX18_F_S_STREAMING, &s_vbi->s_flags)) {
- /* Note: the CX18_ENC_STREAM_TYPE_VBI is claimed
- automatically when the MPG stream is claimed.
- We only need to start the VBI capturing. */
- if (cx18_start_v4l2_encode_stream(s_vbi)) {
- CX18_DEBUG_WARN("VBI capture start failed\n");
-
- /* Failure, clean up and return an error */
- clear_bit(CX18_F_S_STREAMING, &s_vbi->s_flags);
- clear_bit(CX18_F_S_STREAMING, &s->s_flags);
- /* also releases the associated VBI stream */
- cx18_release_stream(s);
- return -EIO;
+ s_idx = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ if (s->type == CX18_ENC_STREAM_TYPE_MPG) {
+ /*
+ * The VBI and IDX streams should have been claimed
+ * automatically, if for internal use, when the MPG stream was
+ * claimed. We only need to start these streams capturing.
+ */
+ if (test_bit(CX18_F_S_INTERNAL_USE, &s_idx->s_flags) &&
+ !test_and_set_bit(CX18_F_S_STREAMING, &s_idx->s_flags)) {
+ if (cx18_start_v4l2_encode_stream(s_idx)) {
+ CX18_DEBUG_WARN("IDX capture start failed\n");
+ clear_bit(CX18_F_S_STREAMING, &s_idx->s_flags);
+ goto start_failed;
+ }
+ CX18_DEBUG_INFO("IDX capture started\n");
+ }
+ if (test_bit(CX18_F_S_INTERNAL_USE, &s_vbi->s_flags) &&
+ !test_and_set_bit(CX18_F_S_STREAMING, &s_vbi->s_flags)) {
+ if (cx18_start_v4l2_encode_stream(s_vbi)) {
+ CX18_DEBUG_WARN("VBI capture start failed\n");
+ clear_bit(CX18_F_S_STREAMING, &s_vbi->s_flags);
+ goto start_failed;
+ }
+ CX18_DEBUG_INFO("VBI insertion started\n");
}
- CX18_DEBUG_INFO("VBI insertion started\n");
}
/* Tell the card to start capturing */
@@ -547,19 +574,29 @@ int cx18_start_capture(struct cx18_open_id *id)
return 0;
}
- /* failure, clean up */
+start_failed:
CX18_DEBUG_WARN("Failed to start capturing for stream %s\n", s->name);
- /* Note: the CX18_ENC_STREAM_TYPE_VBI is released
- automatically when the MPG stream is released.
- We only need to stop the VBI capturing. */
- if (s->type == CX18_ENC_STREAM_TYPE_MPG &&
- test_bit(CX18_F_S_STREAMING, &s_vbi->s_flags)) {
- cx18_stop_v4l2_encode_stream(s_vbi, 0);
- clear_bit(CX18_F_S_STREAMING, &s_vbi->s_flags);
+ /*
+ * The associated VBI and IDX streams for internal use are released
+ * automatically when the MPG stream is released. We only need to stop
+ * the associated stream.
+ */
+ if (s->type == CX18_ENC_STREAM_TYPE_MPG) {
+ /* Stop the IDX stream which is always for internal use */
+ if (test_bit(CX18_F_S_STREAMING, &s_idx->s_flags)) {
+ cx18_stop_v4l2_encode_stream(s_idx, 0);
+ clear_bit(CX18_F_S_STREAMING, &s_idx->s_flags);
+ }
+ /* Stop the VBI stream, if only running for internal use */
+ if (test_bit(CX18_F_S_STREAMING, &s_vbi->s_flags) &&
+ !test_bit(CX18_F_S_APPL_IO, &s_vbi->s_flags)) {
+ cx18_stop_v4l2_encode_stream(s_vbi, 0);
+ clear_bit(CX18_F_S_STREAMING, &s_vbi->s_flags);
+ }
}
clear_bit(CX18_F_S_STREAMING, &s->s_flags);
- cx18_release_stream(s);
+ cx18_release_stream(s); /* Also releases associated streams */
return -EIO;
}
@@ -618,6 +655,8 @@ void cx18_stop_capture(struct cx18_open_id *id, int gop_end)
{
struct cx18 *cx = id->cx;
struct cx18_stream *s = &cx->streams[id->type];
+ struct cx18_stream *s_vbi = &cx->streams[CX18_ENC_STREAM_TYPE_VBI];
+ struct cx18_stream *s_idx = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
CX18_DEBUG_IOCTL("close() of %s\n", s->name);
@@ -625,17 +664,19 @@ void cx18_stop_capture(struct cx18_open_id *id, int gop_end)
/* Stop capturing */
if (test_bit(CX18_F_S_STREAMING, &s->s_flags)) {
- struct cx18_stream *s_vbi =
- &cx->streams[CX18_ENC_STREAM_TYPE_VBI];
-
CX18_DEBUG_INFO("close stopping capture\n");
- /* Special case: a running VBI capture for VBI insertion
- in the mpeg stream. Need to stop that too. */
- if (id->type == CX18_ENC_STREAM_TYPE_MPG &&
- test_bit(CX18_F_S_STREAMING, &s_vbi->s_flags) &&
- !test_bit(CX18_F_S_APPL_IO, &s_vbi->s_flags)) {
- CX18_DEBUG_INFO("close stopping embedded VBI capture\n");
- cx18_stop_v4l2_encode_stream(s_vbi, 0);
+ if (id->type == CX18_ENC_STREAM_TYPE_MPG) {
+ /* Stop internal use associated VBI and IDX streams */
+ if (test_bit(CX18_F_S_STREAMING, &s_vbi->s_flags) &&
+ !test_bit(CX18_F_S_APPL_IO, &s_vbi->s_flags)) {
+ CX18_DEBUG_INFO("close stopping embedded VBI "
+ "capture\n");
+ cx18_stop_v4l2_encode_stream(s_vbi, 0);
+ }
+ if (test_bit(CX18_F_S_STREAMING, &s_idx->s_flags)) {
+ CX18_DEBUG_INFO("close stopping IDX capture\n");
+ cx18_stop_v4l2_encode_stream(s_idx, 0);
+ }
}
if (id->type == CX18_ENC_STREAM_TYPE_VBI &&
test_bit(CX18_F_S_INTERNAL_USE, &s->s_flags))
diff --git a/drivers/media/video/cx18/cx18-fileops.h b/drivers/media/video/cx18/cx18-fileops.h
index 92e2d5dab93..5c8fcb884f0 100644
--- a/drivers/media/video/cx18/cx18-fileops.h
+++ b/drivers/media/video/cx18/cx18-fileops.h
@@ -34,3 +34,6 @@ void cx18_stop_capture(struct cx18_open_id *id, int gop_end);
void cx18_mute(struct cx18 *cx);
void cx18_unmute(struct cx18 *cx);
+/* Shared with cx18-alsa module */
+int cx18_claim_stream(struct cx18_open_id *id, int type);
+void cx18_release_stream(struct cx18_stream *s);
diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c
index 3e4fc192fde..b81dd0ea8eb 100644
--- a/drivers/media/video/cx18/cx18-ioctl.c
+++ b/drivers/media/video/cx18/cx18-ioctl.c
@@ -775,10 +775,143 @@ static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
return 0;
}
+static int _cx18_process_idx_data(struct cx18_buffer *buf,
+ struct v4l2_enc_idx *idx)
+{
+ int consumed, remaining;
+ struct v4l2_enc_idx_entry *e_idx;
+ struct cx18_enc_idx_entry *e_buf;
+
+ /* Frame type lookup: 1=I, 2=P, 4=B */
+ const int mapping[8] = {
+ -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
+ -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
+ };
+
+ /*
+ * Assumption here is that a buf holds an integral number of
+ * struct cx18_enc_idx_entry objects and is properly aligned.
+ * This is enforced by the module options on IDX buffer sizes.
+ */
+ remaining = buf->bytesused - buf->readpos;
+ consumed = 0;
+ e_idx = &idx->entry[idx->entries];
+ e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
+
+ while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
+ idx->entries < V4L2_ENC_IDX_ENTRIES) {
+
+ e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
+ | le32_to_cpu(e_buf->offset_low);
+
+ e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
+ | le32_to_cpu(e_buf->pts_low);
+
+ e_idx->length = le32_to_cpu(e_buf->length);
+
+ e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
+
+ e_idx->reserved[0] = 0;
+ e_idx->reserved[1] = 0;
+
+ idx->entries++;
+ e_idx = &idx->entry[idx->entries];
+ e_buf++;
+
+ remaining -= sizeof(struct cx18_enc_idx_entry);
+ consumed += sizeof(struct cx18_enc_idx_entry);
+ }
+
+ /* Swallow any partial entries at the end, if there are any */
+ if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
+ consumed += remaining;
+
+ buf->readpos += consumed;
+ return consumed;
+}
+
+static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
+ struct v4l2_enc_idx *idx)
+{
+ if (s->type != CX18_ENC_STREAM_TYPE_IDX)
+ return -EINVAL;
+
+ if (mdl->curr_buf == NULL)
+ mdl->curr_buf = list_first_entry(&mdl->buf_list,
+ struct cx18_buffer, list);
+
+ if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
+ /*
+ * For some reason we've exhausted the buffers, but the MDL
+ * object still said some data was unread.
+ * Fix that and bail out.
+ */
+ mdl->readpos = mdl->bytesused;
+ return 0;
+ }
+
+ list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
+
+ /* Skip any empty buffers in the MDL */
+ if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
+ continue;
+
+ mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
+
+ /* exit when MDL drained or request satisfied */
+ if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
+ mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
+ mdl->readpos >= mdl->bytesused)
+ break;
+ }
+ return 0;
+}
+
static int cx18_g_enc_index(struct file *file, void *fh,
struct v4l2_enc_idx *idx)
{
- return -EINVAL;
+ struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
+ struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ s32 tmp;
+ struct cx18_mdl *mdl;
+
+ if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
+ return -EINVAL;
+
+ /* Compute the best case number of entries we can buffer */
+ tmp = s->buffers -
+ s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
+ if (tmp <= 0)
+ tmp = 1;
+ tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
+
+ /* Fill out the header of the return structure */
+ idx->entries = 0;
+ idx->entries_cap = tmp;
+ memset(idx->reserved, 0, sizeof(idx->reserved));
+
+ /* Pull IDX MDLs and buffers from q_full and populate the entries */
+ do {
+ mdl = cx18_dequeue(s, &s->q_full);
+ if (mdl == NULL) /* No more IDX data right now */
+ break;
+
+ /* Extract the Index entry data from the MDL and buffers */
+ cx18_process_idx_data(s, mdl, idx);
+ if (mdl->readpos < mdl->bytesused) {
+ /* We finished with data remaining, push the MDL back */
+ cx18_push(s, mdl, &s->q_full);
+ break;
+ }
+
+ /* We drained this MDL, schedule it to go to the firmware */
+ cx18_enqueue(s, mdl, &s->q_free);
+
+ } while (idx->entries < V4L2_ENC_IDX_ENTRIES);
+
+ /* Tell the work handler to send free IDX MDLs to the firmware */
+ cx18_stream_load_fw_queue(s);
+ return 0;
}
static int cx18_encoder_cmd(struct file *file, void *fh,
diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c
index f231dd09c72..6dcce297752 100644
--- a/drivers/media/video/cx18/cx18-mailbox.c
+++ b/drivers/media/video/cx18/cx18-mailbox.c
@@ -29,6 +29,7 @@
#include "cx18-mailbox.h"
#include "cx18-queue.h"
#include "cx18-streams.h"
+#include "cx18-alsa-pcm.h" /* FIXME make configurable */
static const char *rpu_str[] = { "APU", "CPU", "EPU", "HPU" };
@@ -157,6 +158,34 @@ static void cx18_mdl_send_to_dvb(struct cx18_stream *s, struct cx18_mdl *mdl)
}
}
+
+static void cx18_mdl_send_to_alsa(struct cx18 *cx, struct cx18_stream *s,
+ struct cx18_mdl *mdl)
+{
+ struct cx18_buffer *buf;
+
+ if (mdl->bytesused == 0)
+ return;
+
+ /* We ignore mdl and buf readpos accounting here - it doesn't matter */
+
+ /* The likely case */
+ if (list_is_singular(&mdl->buf_list)) {
+ buf = list_first_entry(&mdl->buf_list, struct cx18_buffer,
+ list);
+ if (buf->bytesused)
+ cx->pcm_announce_callback(cx->alsa, buf->buf,
+ buf->bytesused);
+ return;
+ }
+
+ list_for_each_entry(buf, &mdl->buf_list, list) {
+ if (buf->bytesused == 0)
+ break;
+ cx->pcm_announce_callback(cx->alsa, buf->buf, buf->bytesused);
+ }
+}
+
static void epu_dma_done(struct cx18 *cx, struct cx18_in_work_order *order)
{
u32 handle, mdl_ack_count, id;
@@ -223,11 +252,21 @@ static void epu_dma_done(struct cx18 *cx, struct cx18_in_work_order *order)
CX18_DEBUG_HI_DMA("%s recv bytesused = %d\n",
s->name, mdl->bytesused);
- if (s->type != CX18_ENC_STREAM_TYPE_TS)
- cx18_enqueue(s, mdl, &s->q_full);
- else {
+ if (s->type == CX18_ENC_STREAM_TYPE_TS) {
cx18_mdl_send_to_dvb(s, mdl);
cx18_enqueue(s, mdl, &s->q_free);
+ } else if (s->type == CX18_ENC_STREAM_TYPE_PCM) {
+ /* Pass the data to cx18-alsa */
+ if (cx->pcm_announce_callback != NULL) {
+ cx18_mdl_send_to_alsa(cx, s, mdl);
+ cx18_enqueue(s, mdl, &s->q_free);
+ } else {
+ cx18_enqueue(s, mdl, &s->q_full);
+ }
+ } else {
+ cx18_enqueue(s, mdl, &s->q_full);
+ if (s->type == CX18_ENC_STREAM_TYPE_IDX)
+ cx18_stream_rotate_idx_mdls(cx);
}
}
/* Put as many MDLs as possible back into fw use */
diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c
index 63304823cef..aefc8c8cf3c 100644
--- a/drivers/media/video/cx18/cx18-queue.c
+++ b/drivers/media/video/cx18/cx18-queue.c
@@ -419,6 +419,9 @@ void cx18_stream_free(struct cx18_stream *s)
{
struct cx18_mdl *mdl;
struct cx18_buffer *buf;
+ struct cx18 *cx = s->cx;
+
+ CX18_DEBUG_INFO("Deallocating buffers for %s stream\n", s->name);
/* move all buffers to buf_pool and all MDLs to q_idle */
cx18_unload_queues(s);
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 987a9308d93..054450f65a6 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -319,11 +319,27 @@ void cx18_streams_cleanup(struct cx18 *cx, int unregister)
/* Teardown all streams */
for (type = 0; type < CX18_MAX_STREAMS; type++) {
- if (cx->streams[type].dvb.enabled) {
- cx18_dvb_unregister(&cx->streams[type]);
- cx->streams[type].dvb.enabled = false;
+
+ /* No struct video_device, but can have buffers allocated */
+ if (type == CX18_ENC_STREAM_TYPE_TS) {
+ if (cx->streams[type].dvb.enabled) {
+ cx18_dvb_unregister(&cx->streams[type]);
+ cx->streams[type].dvb.enabled = false;
+ cx18_stream_free(&cx->streams[type]);
+ }
+ continue;
+ }
+
+ /* No struct video_device, but can have buffers allocated */
+ if (type == CX18_ENC_STREAM_TYPE_IDX) {
+ if (cx->stream_buffers[type] != 0) {
+ cx->stream_buffers[type] = 0;
+ cx18_stream_free(&cx->streams[type]);
+ }
+ continue;
}
+ /* If struct video_device exists, can have buffers allocated */
vdev = cx->streams[type].video_dev;
cx->streams[type].video_dev = NULL;
@@ -447,6 +463,32 @@ static void cx18_vbi_setup(struct cx18_stream *s)
cx18_api(cx, CX18_CPU_SET_RAW_VBI_PARAM, 6, data);
}
+void cx18_stream_rotate_idx_mdls(struct cx18 *cx)
+{
+ struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ struct cx18_mdl *mdl;
+
+ if (!cx18_stream_enabled(s))
+ return;
+
+ /* Return if the firmware is not running low on MDLs */
+ if ((atomic_read(&s->q_free.depth) + atomic_read(&s->q_busy.depth)) >=
+ CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN)
+ return;
+
+ /* Return if there are no MDLs to rotate back to the firmware */
+ if (atomic_read(&s->q_full.depth) < 2)
+ return;
+
+ /*
+ * Take the oldest IDX MDL still holding data, and discard its index
+ * entries by scheduling the MDL to go back to the firmware
+ */
+ mdl = cx18_dequeue(s, &s->q_full);
+ if (mdl != NULL)
+ cx18_enqueue(s, mdl, &s->q_free);
+}
+
static
struct cx18_queue *_cx18_stream_put_mdl_fw(struct cx18_stream *s,
struct cx18_mdl *mdl)
@@ -546,8 +588,9 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
struct cx18 *cx = s->cx;
int captype = 0;
struct cx18_api_func_private priv;
+ struct cx18_stream *s_idx;
- if (s->video_dev == NULL && s->dvb.enabled == 0)
+ if (!cx18_stream_enabled(s))
return -EINVAL;
CX18_DEBUG_INFO("Start encoder stream %s\n", s->name);
@@ -561,6 +604,9 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
cx->search_pack_header = 0;
break;
+ case CX18_ENC_STREAM_TYPE_IDX:
+ captype = CAPTURE_CHANNEL_TYPE_INDEX;
+ break;
case CX18_ENC_STREAM_TYPE_TS:
captype = CAPTURE_CHANNEL_TYPE_TS;
break;
@@ -635,11 +681,13 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
cx18_vbi_setup(s);
/*
- * assign program index info.
- * Mask 7: select I/P/B, Num_req: 400 max
- * FIXME - currently we have this hardcoded as disabled
+ * Select to receive I, P, and B frame index entries, if the
+ * index stream is enabled. Otherwise disable index entry
+ * generation.
*/
- cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 1, 0);
+ s_idx = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
+ cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 2,
+ s->handle, cx18_stream_enabled(s_idx) ? 7 : 0);
/* Call out to the common CX2341x API setup for user controls */
priv.cx = cx;
@@ -697,6 +745,7 @@ int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
atomic_inc(&cx->tot_capturing);
return 0;
}
+EXPORT_SYMBOL(cx18_start_v4l2_encode_stream);
void cx18_stop_all_captures(struct cx18 *cx)
{
@@ -705,7 +754,7 @@ void cx18_stop_all_captures(struct cx18 *cx)
for (i = CX18_MAX_STREAMS - 1; i >= 0; i--) {
struct cx18_stream *s = &cx->streams[i];
- if (s->video_dev == NULL && s->dvb.enabled == 0)
+ if (!cx18_stream_enabled(s))
continue;
if (test_bit(CX18_F_S_STREAMING, &s->s_flags))
cx18_stop_v4l2_encode_stream(s, 0);
@@ -717,7 +766,7 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end)
struct cx18 *cx = s->cx;
unsigned long then;
- if (s->video_dev == NULL && s->dvb.enabled == 0)
+ if (!cx18_stream_enabled(s))
return -EINVAL;
/* This function assumes that you are allowed to stop the capture
@@ -762,6 +811,7 @@ int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end)
return 0;
}
+EXPORT_SYMBOL(cx18_stop_v4l2_encode_stream);
u32 cx18_find_handle(struct cx18 *cx)
{
@@ -789,7 +839,7 @@ struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle)
s = &cx->streams[i];
if (s->handle != handle)
continue;
- if (s->video_dev || s->dvb.enabled)
+ if (cx18_stream_enabled(s))
return s;
}
return NULL;
diff --git a/drivers/media/video/cx18/cx18-streams.h b/drivers/media/video/cx18/cx18-streams.h
index 4a01db5e5a3..0bff0fa2976 100644
--- a/drivers/media/video/cx18/cx18-streams.h
+++ b/drivers/media/video/cx18/cx18-streams.h
@@ -28,6 +28,16 @@ int cx18_streams_setup(struct cx18 *cx);
int cx18_streams_register(struct cx18 *cx);
void cx18_streams_cleanup(struct cx18 *cx, int unregister);
+#define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3)
+void cx18_stream_rotate_idx_mdls(struct cx18 *cx);
+
+static inline bool cx18_stream_enabled(struct cx18_stream *s)
+{
+ return s->video_dev || s->dvb.enabled ||
+ (s->type == CX18_ENC_STREAM_TYPE_IDX &&
+ s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
+}
+
/* Related to submission of mdls to firmware */
static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
{
diff --git a/drivers/media/video/cx18/cx18-version.h b/drivers/media/video/cx18/cx18-version.h
index 9c0b5bb1b01..3e1aec4bcfd 100644
--- a/drivers/media/video/cx18/cx18-version.h
+++ b/drivers/media/video/cx18/cx18-version.h
@@ -24,7 +24,7 @@
#define CX18_DRIVER_NAME "cx18"
#define CX18_DRIVER_VERSION_MAJOR 1
-#define CX18_DRIVER_VERSION_MINOR 3
+#define CX18_DRIVER_VERSION_MINOR 4
#define CX18_DRIVER_VERSION_PATCHLEVEL 0
#define CX18_VERSION __stringify(CX18_DRIVER_VERSION_MAJOR) "." __stringify(CX18_DRIVER_VERSION_MINOR) "." __stringify(CX18_DRIVER_VERSION_PATCHLEVEL)
diff --git a/drivers/media/video/cx18/cx23418.h b/drivers/media/video/cx18/cx23418.h
index 868806effdc..2c00980acfc 100644
--- a/drivers/media/video/cx18/cx23418.h
+++ b/drivers/media/video/cx18/cx23418.h
@@ -191,7 +191,8 @@
#define CX18_CPU_SET_MEDIAN_CORING (CPU_CMD_MASK_CAPTURE | 0x000E)
/* Description: This command set the picture type mask for index file
- IN[0] - 0 = disable index file output
+ IN[0] - Task handle (ignored by firmware)
+ IN[1] - 0 = disable index file output
1 = output I picture
2 = P picture
4 = B picture