From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- drivers/media/usb/au0828/au0828-dvb.c | 694 ++++++++++++++++++++++++++++++++++ 1 file changed, 694 insertions(+) create mode 100644 drivers/media/usb/au0828/au0828-dvb.c (limited to 'drivers/media/usb/au0828/au0828-dvb.c') diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c new file mode 100644 index 000000000..d9093a3c5 --- /dev/null +++ b/drivers/media/usb/au0828/au0828-dvb.c @@ -0,0 +1,694 @@ +/* + * Driver for the Auvitek USB bridge + * + * Copyright (c) 2008 Steven Toth + * + * 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. + */ + +#include "au0828.h" + +#include +#include +#include +#include +#include +#include + +#include "au8522.h" +#include "xc5000.h" +#include "mxl5007t.h" +#include "tda18271.h" + +static int preallocate_big_buffers; +module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644); +MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time"); + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +#define _AU0828_BULKPIPE 0x83 +#define _BULKPIPESIZE 0xe522 + +static u8 hauppauge_hvr950q_led_states[] = { + 0x00, /* off */ + 0x02, /* yellow */ + 0x04, /* green */ +}; + +static struct au8522_led_config hauppauge_hvr950q_led_cfg = { + .gpio_output = 0x00e0, + .gpio_output_enable = 0x6006, + .gpio_output_disable = 0x0660, + + .gpio_leds = 0x00e2, + .led_states = hauppauge_hvr950q_led_states, + .num_led_states = sizeof(hauppauge_hvr950q_led_states), + + .vsb8_strong = 20 /* dB */ * 10, + .qam64_strong = 25 /* dB */ * 10, + .qam256_strong = 32 /* dB */ * 10, +}; + +static struct au8522_config hauppauge_hvr950q_config = { + .demod_address = 0x8e >> 1, + .status_mode = AU8522_DEMODLOCKING, + .qam_if = AU8522_IF_6MHZ, + .vsb_if = AU8522_IF_6MHZ, + .led_cfg = &hauppauge_hvr950q_led_cfg, +}; + +static struct au8522_config fusionhdtv7usb_config = { + .demod_address = 0x8e >> 1, + .status_mode = AU8522_DEMODLOCKING, + .qam_if = AU8522_IF_6MHZ, + .vsb_if = AU8522_IF_6MHZ, +}; + +static struct au8522_config hauppauge_woodbury_config = { + .demod_address = 0x8e >> 1, + .status_mode = AU8522_DEMODLOCKING, + .qam_if = AU8522_IF_4MHZ, + .vsb_if = AU8522_IF_3_25MHZ, +}; + +static struct xc5000_config hauppauge_xc5000a_config = { + .i2c_address = 0x61, + .if_khz = 6000, + .chip_id = XC5000A, + .output_amp = 0x8f, +}; + +static struct xc5000_config hauppauge_xc5000c_config = { + .i2c_address = 0x61, + .if_khz = 6000, + .chip_id = XC5000C, + .output_amp = 0x8f, +}; + +static struct mxl5007t_config mxl5007t_hvr950q_config = { + .xtal_freq_hz = MxL_XTAL_24_MHZ, + .if_freq_hz = MxL_IF_6_MHZ, +}; + +static struct tda18271_config hauppauge_woodbury_tunerconfig = { + .gate = TDA18271_GATE_DIGITAL, +}; + +static void au0828_restart_dvb_streaming(struct work_struct *work); + +static void au0828_bulk_timeout(struct timer_list *t) +{ + struct au0828_dev *dev = from_timer(dev, t, bulk_timeout); + + dprintk(1, "%s called\n", __func__); + dev->bulk_timeout_running = 0; + schedule_work(&dev->restart_streaming); +} + +/*-------------------------------------------------------------------*/ +static void urb_completion(struct urb *purb) +{ + struct au0828_dev *dev = purb->context; + int ptype = usb_pipetype(purb->pipe); + unsigned char *ptr; + + dprintk(2, "%s: %d\n", __func__, purb->actual_length); + + if (!dev) { + dprintk(2, "%s: no dev!\n", __func__); + return; + } + + if (!dev->urb_streaming) { + dprintk(2, "%s: not streaming!\n", __func__); + return; + } + + if (ptype != PIPE_BULK) { + pr_err("%s: Unsupported URB type %d\n", + __func__, ptype); + return; + } + + /* See if the stream is corrupted (to work around a hardware + bug where the stream gets misaligned */ + ptr = purb->transfer_buffer; + if (purb->actual_length > 0 && ptr[0] != 0x47) { + dprintk(1, "Need to restart streaming %02x len=%d!\n", + ptr[0], purb->actual_length); + schedule_work(&dev->restart_streaming); + return; + } else if (dev->bulk_timeout_running == 1) { + /* The URB handler has fired, so cancel timer which would + * restart endpoint if we hadn't + */ + dprintk(1, "%s cancelling bulk timeout\n", __func__); + dev->bulk_timeout_running = 0; + del_timer(&dev->bulk_timeout); + } + + /* Feed the transport payload into the kernel demux */ + dvb_dmx_swfilter_packets(&dev->dvb.demux, + purb->transfer_buffer, purb->actual_length / 188); + + /* Clean the buffer before we requeue */ + memset(purb->transfer_buffer, 0, URB_BUFSIZE); + + /* Requeue URB */ + usb_submit_urb(purb, GFP_ATOMIC); +} + +static int stop_urb_transfer(struct au0828_dev *dev) +{ + int i; + + dprintk(2, "%s()\n", __func__); + + if (!dev->urb_streaming) + return 0; + + if (dev->bulk_timeout_running == 1) { + dev->bulk_timeout_running = 0; + del_timer(&dev->bulk_timeout); + } + + dev->urb_streaming = false; + for (i = 0; i < URB_COUNT; i++) { + if (dev->urbs[i]) { + usb_kill_urb(dev->urbs[i]); + if (!preallocate_big_buffers) + kfree(dev->urbs[i]->transfer_buffer); + + usb_free_urb(dev->urbs[i]); + } + } + + return 0; +} + +static int start_urb_transfer(struct au0828_dev *dev) +{ + struct urb *purb; + int i, ret; + + dprintk(2, "%s()\n", __func__); + + if (dev->urb_streaming) { + dprintk(2, "%s: bulk xfer already running!\n", __func__); + return 0; + } + + for (i = 0; i < URB_COUNT; i++) { + + dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->urbs[i]) + return -ENOMEM; + + purb = dev->urbs[i]; + + if (preallocate_big_buffers) + purb->transfer_buffer = dev->dig_transfer_buffer[i]; + else + purb->transfer_buffer = kzalloc(URB_BUFSIZE, + GFP_KERNEL); + + if (!purb->transfer_buffer) { + usb_free_urb(purb); + dev->urbs[i] = NULL; + ret = -ENOMEM; + pr_err("%s: failed big buffer allocation, err = %d\n", + __func__, ret); + return ret; + } + + purb->status = -EINPROGRESS; + usb_fill_bulk_urb(purb, + dev->usbdev, + usb_rcvbulkpipe(dev->usbdev, + _AU0828_BULKPIPE), + purb->transfer_buffer, + URB_BUFSIZE, + urb_completion, + dev); + + } + + for (i = 0; i < URB_COUNT; i++) { + ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC); + if (ret != 0) { + stop_urb_transfer(dev); + pr_err("%s: failed urb submission, err = %d\n", + __func__, ret); + return ret; + } + } + + dev->urb_streaming = true; + + /* If we don't valid data within 1 second, restart stream */ + mod_timer(&dev->bulk_timeout, jiffies + (HZ)); + dev->bulk_timeout_running = 1; + + return 0; +} + +static void au0828_start_transport(struct au0828_dev *dev) +{ + au0828_write(dev, 0x608, 0x90); + au0828_write(dev, 0x609, 0x72); + au0828_write(dev, 0x60a, 0x71); + au0828_write(dev, 0x60b, 0x01); + +} + +static void au0828_stop_transport(struct au0828_dev *dev, int full_stop) +{ + if (full_stop) { + au0828_write(dev, 0x608, 0x00); + au0828_write(dev, 0x609, 0x00); + au0828_write(dev, 0x60a, 0x00); + } + au0828_write(dev, 0x60b, 0x00); +} + +static int au0828_dvb_start_feed(struct dvb_demux_feed *feed) +{ + struct dvb_demux *demux = feed->demux; + struct au0828_dev *dev = (struct au0828_dev *) demux->priv; + struct au0828_dvb *dvb = &dev->dvb; + int ret = 0; + + dprintk(1, "%s()\n", __func__); + + if (!demux->dmx.frontend) + return -EINVAL; + + if (dvb->frontend) { + mutex_lock(&dvb->lock); + dvb->start_count++; + dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__, + dvb->start_count, dvb->stop_count); + if (dvb->feeding++ == 0) { + /* Start transport */ + au0828_start_transport(dev); + ret = start_urb_transfer(dev); + if (ret < 0) { + au0828_stop_transport(dev, 0); + dvb->feeding--; /* We ran out of memory... */ + } + } + mutex_unlock(&dvb->lock); + } + + return ret; +} + +static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed) +{ + struct dvb_demux *demux = feed->demux; + struct au0828_dev *dev = (struct au0828_dev *) demux->priv; + struct au0828_dvb *dvb = &dev->dvb; + int ret = 0; + + dprintk(1, "%s()\n", __func__); + + if (dvb->frontend) { + cancel_work_sync(&dev->restart_streaming); + + mutex_lock(&dvb->lock); + dvb->stop_count++; + dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__, + dvb->start_count, dvb->stop_count); + if (dvb->feeding > 0) { + dvb->feeding--; + if (dvb->feeding == 0) { + /* Stop transport */ + ret = stop_urb_transfer(dev); + au0828_stop_transport(dev, 0); + } + } + mutex_unlock(&dvb->lock); + } + + return ret; +} + +static void au0828_restart_dvb_streaming(struct work_struct *work) +{ + struct au0828_dev *dev = container_of(work, struct au0828_dev, + restart_streaming); + struct au0828_dvb *dvb = &dev->dvb; + + if (!dev->urb_streaming) + return; + + dprintk(1, "Restarting streaming...!\n"); + + mutex_lock(&dvb->lock); + + /* Stop transport */ + stop_urb_transfer(dev); + au0828_stop_transport(dev, 1); + + /* Start transport */ + au0828_start_transport(dev); + start_urb_transfer(dev); + + mutex_unlock(&dvb->lock); +} + +static int au0828_set_frontend(struct dvb_frontend *fe) +{ + struct au0828_dev *dev = fe->dvb->priv; + struct au0828_dvb *dvb = &dev->dvb; + int ret, was_streaming; + + mutex_lock(&dvb->lock); + was_streaming = dev->urb_streaming; + if (was_streaming) { + au0828_stop_transport(dev, 1); + + /* + * We can't hold a mutex here, as the restart_streaming + * kthread may also hold it. + */ + mutex_unlock(&dvb->lock); + cancel_work_sync(&dev->restart_streaming); + mutex_lock(&dvb->lock); + + stop_urb_transfer(dev); + } + mutex_unlock(&dvb->lock); + + ret = dvb->set_frontend(fe); + + if (was_streaming) { + mutex_lock(&dvb->lock); + au0828_start_transport(dev); + start_urb_transfer(dev); + mutex_unlock(&dvb->lock); + } + + return ret; +} + +static int dvb_register(struct au0828_dev *dev) +{ + struct au0828_dvb *dvb = &dev->dvb; + int result; + + dprintk(1, "%s()\n", __func__); + + if (preallocate_big_buffers) { + int i; + for (i = 0; i < URB_COUNT; i++) { + dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE, + GFP_KERNEL); + + if (!dev->dig_transfer_buffer[i]) { + result = -ENOMEM; + + pr_err("failed buffer allocation (errno = %d)\n", + result); + goto fail_adapter; + } + } + } + + INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming); + + /* register adapter */ + result = dvb_register_adapter(&dvb->adapter, + KBUILD_MODNAME, THIS_MODULE, + &dev->usbdev->dev, adapter_nr); + if (result < 0) { + pr_err("dvb_register_adapter failed (errno = %d)\n", + result); + goto fail_adapter; + } + +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + dvb->adapter.mdev = dev->media_dev; +#endif + + dvb->adapter.priv = dev; + + /* register frontend */ + result = dvb_register_frontend(&dvb->adapter, dvb->frontend); + if (result < 0) { + pr_err("dvb_register_frontend failed (errno = %d)\n", + result); + goto fail_frontend; + } + + /* Hook dvb frontend */ + dvb->set_frontend = dvb->frontend->ops.set_frontend; + dvb->frontend->ops.set_frontend = au0828_set_frontend; + + /* register demux stuff */ + dvb->demux.dmx.capabilities = + DMX_TS_FILTERING | DMX_SECTION_FILTERING | + DMX_MEMORY_BASED_FILTERING; + dvb->demux.priv = dev; + dvb->demux.filternum = 256; + dvb->demux.feednum = 256; + dvb->demux.start_feed = au0828_dvb_start_feed; + dvb->demux.stop_feed = au0828_dvb_stop_feed; + result = dvb_dmx_init(&dvb->demux); + if (result < 0) { + pr_err("dvb_dmx_init failed (errno = %d)\n", result); + goto fail_dmx; + } + + dvb->dmxdev.filternum = 256; + dvb->dmxdev.demux = &dvb->demux.dmx; + dvb->dmxdev.capabilities = 0; + result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter); + if (result < 0) { + pr_err("dvb_dmxdev_init failed (errno = %d)\n", result); + goto fail_dmxdev; + } + + dvb->fe_hw.source = DMX_FRONTEND_0; + result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw); + if (result < 0) { + pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n", + result); + goto fail_fe_hw; + } + + dvb->fe_mem.source = DMX_MEMORY_FE; + result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem); + if (result < 0) { + pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n", + result); + goto fail_fe_mem; + } + + result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); + if (result < 0) { + pr_err("connect_frontend failed (errno = %d)\n", result); + goto fail_fe_conn; + } + + /* register network adapter */ + dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx); + + dvb->start_count = 0; + dvb->stop_count = 0; + + result = dvb_create_media_graph(&dvb->adapter, false); + if (result < 0) + goto fail_create_graph; + + return 0; + +fail_create_graph: + dvb_net_release(&dvb->net); +fail_fe_conn: + dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); +fail_fe_mem: + dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); +fail_fe_hw: + dvb_dmxdev_release(&dvb->dmxdev); +fail_dmxdev: + dvb_dmx_release(&dvb->demux); +fail_dmx: + dvb_unregister_frontend(dvb->frontend); +fail_frontend: + dvb_frontend_detach(dvb->frontend); + dvb_unregister_adapter(&dvb->adapter); +fail_adapter: + + if (preallocate_big_buffers) { + int i; + for (i = 0; i < URB_COUNT; i++) + kfree(dev->dig_transfer_buffer[i]); + } + + return result; +} + +void au0828_dvb_unregister(struct au0828_dev *dev) +{ + struct au0828_dvb *dvb = &dev->dvb; + + dprintk(1, "%s()\n", __func__); + + if (dvb->frontend == NULL) + return; + + cancel_work_sync(&dev->restart_streaming); + + dvb_net_release(&dvb->net); + dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); + dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); + dvb_dmxdev_release(&dvb->dmxdev); + dvb_dmx_release(&dvb->demux); + dvb_unregister_frontend(dvb->frontend); + dvb_frontend_detach(dvb->frontend); + dvb_unregister_adapter(&dvb->adapter); + + if (preallocate_big_buffers) { + int i; + for (i = 0; i < URB_COUNT; i++) + kfree(dev->dig_transfer_buffer[i]); + } + dvb->frontend = NULL; +} + +/* All the DVB attach calls go here, this function get's modified + * for each new card. No other function in this file needs + * to change. + */ +int au0828_dvb_register(struct au0828_dev *dev) +{ + struct au0828_dvb *dvb = &dev->dvb; + int ret; + + dprintk(1, "%s()\n", __func__); + + /* init frontend */ + switch (dev->boardnr) { + case AU0828_BOARD_HAUPPAUGE_HVR850: + case AU0828_BOARD_HAUPPAUGE_HVR950Q: + dvb->frontend = dvb_attach(au8522_attach, + &hauppauge_hvr950q_config, + &dev->i2c_adap); + if (dvb->frontend != NULL) + switch (dev->board.tuner_type) { + default: + case TUNER_XC5000: + dvb_attach(xc5000_attach, dvb->frontend, + &dev->i2c_adap, + &hauppauge_xc5000a_config); + break; + case TUNER_XC5000C: + dvb_attach(xc5000_attach, dvb->frontend, + &dev->i2c_adap, + &hauppauge_xc5000c_config); + break; + } + break; + case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL: + dvb->frontend = dvb_attach(au8522_attach, + &hauppauge_hvr950q_config, + &dev->i2c_adap); + if (dvb->frontend != NULL) + dvb_attach(mxl5007t_attach, dvb->frontend, + &dev->i2c_adap, 0x60, + &mxl5007t_hvr950q_config); + break; + case AU0828_BOARD_HAUPPAUGE_WOODBURY: + dvb->frontend = dvb_attach(au8522_attach, + &hauppauge_woodbury_config, + &dev->i2c_adap); + if (dvb->frontend != NULL) + dvb_attach(tda18271_attach, dvb->frontend, + 0x60, &dev->i2c_adap, + &hauppauge_woodbury_tunerconfig); + break; + case AU0828_BOARD_DVICO_FUSIONHDTV7: + dvb->frontend = dvb_attach(au8522_attach, + &fusionhdtv7usb_config, + &dev->i2c_adap); + if (dvb->frontend != NULL) { + dvb_attach(xc5000_attach, dvb->frontend, + &dev->i2c_adap, + &hauppauge_xc5000a_config); + } + break; + default: + pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n"); + break; + } + if (NULL == dvb->frontend) { + pr_err("%s() Frontend initialization failed\n", + __func__); + return -1; + } + /* define general-purpose callback pointer */ + dvb->frontend->callback = au0828_tuner_callback; + + /* register everything */ + ret = dvb_register(dev); + if (ret < 0) { + if (dvb->frontend->ops.release) + dvb->frontend->ops.release(dvb->frontend); + dvb->frontend = NULL; + return ret; + } + + timer_setup(&dev->bulk_timeout, au0828_bulk_timeout, 0); + + return 0; +} + +void au0828_dvb_suspend(struct au0828_dev *dev) +{ + struct au0828_dvb *dvb = &dev->dvb; + int rc; + + if (dvb->frontend) { + if (dev->urb_streaming) { + cancel_work_sync(&dev->restart_streaming); + /* Stop transport */ + mutex_lock(&dvb->lock); + stop_urb_transfer(dev); + au0828_stop_transport(dev, 1); + mutex_unlock(&dvb->lock); + dev->need_urb_start = true; + } + /* suspend frontend - does tuner and fe to sleep */ + rc = dvb_frontend_suspend(dvb->frontend); + pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc); + } +} + +void au0828_dvb_resume(struct au0828_dev *dev) +{ + struct au0828_dvb *dvb = &dev->dvb; + int rc; + + if (dvb->frontend) { + /* resume frontend - does fe and tuner init */ + rc = dvb_frontend_resume(dvb->frontend); + pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc); + if (dev->need_urb_start) { + /* Start transport */ + mutex_lock(&dvb->lock); + au0828_start_transport(dev); + start_urb_transfer(dev); + mutex_unlock(&dvb->lock); + } + } +} -- cgit v1.2.3