/* DVB device driver for cx231xx Copyright (C) 2008 Based on em28xx driver 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include "cx231xx.h" #include #include #include "xc5000.h" #include "dvb_dummy_fe.h" #include "s5h1432.h" #include "tda18271.h" #include "s5h1411.h" MODULE_DESCRIPTION("driver for cx231xx based DVB cards"); MODULE_AUTHOR("Srinivasa Deevi "); MODULE_LICENSE("GPL"); static unsigned int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "enable debug messages [dvb]"); DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); #define dprintk(level, fmt, arg...) do { \ if (debug >= level) \ printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \ } while (0) #define CX231XX_DVB_NUM_BUFS 5 #define CX231XX_DVB_MAX_PACKETSIZE 564 #define CX231XX_DVB_MAX_PACKETS 64 struct cx231xx_dvb { struct dvb_frontend *frontend; /* feed count management */ struct mutex lock; int nfeeds; /* general boilerplate stuff */ struct dvb_adapter adapter; struct dvb_demux demux; struct dmxdev dmxdev; struct dmx_frontend fe_hw; struct dmx_frontend fe_mem; struct dvb_net net; }; static struct s5h1432_config dvico_s5h1432_config = { .output_mode = S5H1432_SERIAL_OUTPUT, .gpio = S5H1432_GPIO_ON, .qam_if = S5H1432_IF_4000, .vsb_if = S5H1432_IF_4000, .inversion = S5H1432_INVERSION_OFF, .status_mode = S5H1432_DEMODLOCKING, .mpeg_timing = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK, }; static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = { .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4, .if_lvl = 1, .rfagc_top = 0x37, }, .dvbt_7 = { .if_freq = 4000, .agc_mode = 3, .std = 5, .if_lvl = 1, .rfagc_top = 0x37, }, .dvbt_8 = { .if_freq = 4000, .agc_mode = 3, .std = 6, .if_lvl = 1, .rfagc_top = 0x37, }, }; static struct tda18271_config cnxt_rde253s_tunerconfig = { .std_map = &cnxt_rde253s_tda18271_std_map, .gate = TDA18271_GATE_ANALOG, }; static struct s5h1411_config tda18271_s5h1411_config = { .output_mode = S5H1411_SERIAL_OUTPUT, .gpio = S5H1411_GPIO_OFF, .vsb_if = S5H1411_IF_3250, .qam_if = S5H1411_IF_4000, .inversion = S5H1411_INVERSION_ON, .status_mode = S5H1411_DEMODLOCKING, .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK, }; static struct s5h1411_config xc5000_s5h1411_config = { .output_mode = S5H1411_SERIAL_OUTPUT, .gpio = S5H1411_GPIO_OFF, .vsb_if = S5H1411_IF_3250, .qam_if = S5H1411_IF_3250, .inversion = S5H1411_INVERSION_OFF, .status_mode = S5H1411_DEMODLOCKING, .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK, }; static inline void print_err_status(struct cx231xx *dev, int packet, int status) { char *errmsg = "Unknown"; switch (status) { case -ENOENT: errmsg = "unlinked synchronuously"; break; case -ECONNRESET: errmsg = "unlinked asynchronuously"; break; case -ENOSR: errmsg = "Buffer error (overrun)"; break; case -EPIPE: errmsg = "Stalled (device not responding)"; break; case -EOVERFLOW: errmsg = "Babble (bad cable?)"; break; case -EPROTO: errmsg = "Bit-stuff error (bad cable?)"; break; case -EILSEQ: errmsg = "CRC/Timeout (could be anything)"; break; case -ETIME: errmsg = "Device does not respond"; break; } if (packet < 0) { dprintk(1, "URB status %d [%s].\n", status, errmsg); } else { dprintk(1, "URB packet %d, status %d [%s].\n", packet, status, errmsg); } } static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb) { int i; if (!dev) return 0; if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) return 0; if (urb->status < 0) { print_err_status(dev, -1, urb->status); if (urb->status == -ENOENT) return 0; } for (i = 0; i < urb->number_of_packets; i++) { int status = urb->iso_frame_desc[i].status; if (status < 0) { print_err_status(dev, i, status); if (urb->iso_frame_desc[i].status != -EPROTO) continue; } dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer + urb->iso_frame_desc[i].offset, urb->iso_frame_desc[i].actual_length); } return 0; } static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb) { int i; if (!dev) return 0; if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) return 0; if (urb->status < 0) { print_err_status(dev, -1, urb->status); if (urb->status == -ENOENT) return 0; } /* Feed the transport payload into the kernel demux */ dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer, urb->actual_length); return 0; } static int start_streaming(struct cx231xx_dvb *dvb) { int rc; struct cx231xx *dev = dvb->adapter.priv; if (dev->USE_ISO) { cx231xx_info("DVB transfer mode is ISO.\n"); mutex_lock(&dev->i2c_lock); cx231xx_enable_i2c_for_tuner(dev, I2C_1); cx231xx_set_alt_setting(dev, INDEX_TS1, 4); cx231xx_enable_i2c_for_tuner(dev, I2C_3); mutex_unlock(&dev->i2c_lock); rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE); if (rc < 0) return rc; dev->mode_tv = 1; return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS, CX231XX_DVB_NUM_BUFS, dev->ts1_mode.max_pkt_size, dvb_isoc_copy); } else { cx231xx_info("DVB transfer mode is BULK.\n"); cx231xx_set_alt_setting(dev, INDEX_TS1, 0); rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE); if (rc < 0) return rc; dev->mode_tv = 1; return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS, CX231XX_DVB_NUM_BUFS, dev->ts1_mode.max_pkt_size, dvb_bulk_copy); } } static int stop_streaming(struct cx231xx_dvb *dvb) { struct cx231xx *dev = dvb->adapter.priv; if (dev->USE_ISO) cx231xx_uninit_isoc(dev); else cx231xx_uninit_bulk(dev); cx231xx_set_mode(dev, CX231XX_SUSPEND); return 0; } static int start_feed(struct dvb_demux_feed *feed) { struct dvb_demux *demux = feed->demux; struct cx231xx_dvb *dvb = demux->priv; int rc, ret; if (!demux->dmx.frontend) return -EINVAL; mutex_lock(&dvb->lock); dvb->nfeeds++; rc = dvb->nfeeds; if (dvb->nfeeds == 1) { ret = start_streaming(dvb); if (ret < 0) rc = ret; } mutex_unlock(&dvb->lock); return rc; } static int stop_feed(struct dvb_demux_feed *feed) { struct dvb_demux *demux = feed->demux; struct cx231xx_dvb *dvb = demux->priv; int err = 0; mutex_lock(&dvb->lock); dvb->nfeeds--; if (0 == dvb->nfeeds) err = stop_streaming(dvb); mutex_unlock(&dvb->lock); return err; } /* ------------------------------------------------------------------ */ static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire) { struct cx231xx *dev = fe->dvb->priv; if (acquire) return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE); else return cx231xx_set_mode(dev, CX231XX_SUSPEND); } /* ------------------------------------------------------------------ */ static struct xc5000_config cnxt_rde250_tunerconfig = { .i2c_address = 0x61, .if_khz = 4000, }; static struct xc5000_config cnxt_rdu250_tunerconfig = { .i2c_address = 0x61, .if_khz = 3250, }; /* ------------------------------------------------------------------ */ #if 0 static int attach_xc5000(u8 addr, struct cx231xx *dev) { struct dvb_frontend *fe; struct xc5000_config cfg; memset(&cfg, 0, sizeof(cfg)); cfg.i2c_adap = &dev->i2c_bus[1].i2c_adap; cfg.i2c_addr = addr; if (!dev->dvb->frontend) { printk(KERN_ERR "%s/2: dvb frontend not attached. " "Can't attach xc5000\n", dev->name); return -EINVAL; } fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg); if (!fe) { printk(KERN_ERR "%s/2: xc5000 attach failed\n", dev->name); dvb_frontend_detach(dev->dvb->frontend); dev->dvb->frontend = NULL; return -EINVAL; } printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name); return 0; } #endif int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq) { int status = 0; if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) { struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops; if (dops->set_analog_params != NULL) { struct analog_parameters params; params.frequency = freq; params.std = dev->norm; params.mode = 0; /* 0- Air; 1 - cable */ /*params.audmode = ; */ /* Set the analog parameters to set the frequency */ dops->set_analog_params(dev->dvb->frontend, ¶ms); } } return status; } int cx231xx_reset_analog_tuner(struct cx231xx *dev) { int status = 0; if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) { struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops; if (dops->init != NULL && !dev->xc_fw_load_done) { cx231xx_info("Reloading firmware for XC5000\n"); status = dops->init(dev->dvb->frontend); if (status == 0) { dev->xc_fw_load_done = 1; cx231xx_info ("XC5000 firmware download completed\n"); } else { dev->xc_fw_load_done = 0; cx231xx_info ("XC5000 firmware download failed !!!\n"); } } } return status; } /* ------------------------------------------------------------------ */ static int register_dvb(struct cx231xx_dvb *dvb, struct module *module, struct cx231xx *dev, struct device *device) { int result; mutex_init(&dvb->lock); /* register adapter */ result = dvb_register_adapter(&dvb->adapter, dev->name, module, device, adapter_nr); if (result < 0) { printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n", dev->name, result); goto fail_adapter; } /* Ensure all frontends negotiate bus access */ dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl; dvb->adapter.priv = dev; /* register frontend */ result = dvb_register_frontend(&dvb->adapter, dvb->frontend); if (result < 0) { printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n", dev->name, result); goto fail_frontend; } /* register demux stuff */ dvb->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING; dvb->demux.priv = dvb; dvb->demux.filternum = 256; dvb->demux.feednum = 256; dvb->demux.start_feed = start_feed; dvb->demux.stop_feed = stop_feed; result = dvb_dmx_init(&dvb->demux); if (result < 0) { printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n", dev->name, 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) { printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n", dev->name, 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) { printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n", dev->name, 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) { printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n", dev->name, result); goto fail_fe_mem; } result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); if (result < 0) { printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n", dev->name, result); goto fail_fe_conn; } /* register network adapter */ dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx); return 0; 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: return result; } static void unregister_dvb(struct cx231xx_dvb *dvb) { 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); } static int dvb_init(struct cx231xx *dev) { int result = 0; struct cx231xx_dvb *dvb; if (!dev->board.has_dvb) { /* This device does not support the extension */ return 0; } dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL); if (dvb == NULL) { printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n"); return -ENOMEM; } dev->dvb = dvb; dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq; dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner; cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE); cx231xx_demod_reset(dev); /* init frontend */ switch (dev->model) { case CX231XX_BOARD_CNXT_CARRAERA: case CX231XX_BOARD_CNXT_RDE_250: dev->dvb->frontend = dvb_attach(s5h1432_attach, &dvico_s5h1432_config, &dev->i2c_bus[2].i2c_adap); if (dev->dvb->frontend == NULL) { printk(DRIVER_NAME ": Failed to attach s5h1432 front end\n"); result = -EINVAL; goto out_free; } /* define general-purpose callback pointer */ dvb->frontend->callback = cx231xx_tuner_callback; if (!dvb_attach(xc5000_attach, dev->dvb->frontend, &dev->i2c_bus[1].i2c_adap, &cnxt_rde250_tunerconfig)) { result = -EINVAL; goto out_free; } break; case CX231XX_BOARD_CNXT_SHELBY: case CX231XX_BOARD_CNXT_RDU_250: dev->dvb->frontend = dvb_attach(s5h1411_attach, &xc5000_s5h1411_config, &dev->i2c_bus[2].i2c_adap); if (dev->dvb->frontend == NULL) { printk(DRIVER_NAME ": Failed to attach dummy front end\n"); result = -EINVAL; goto out_free; } /* define general-purpose callback pointer */ dvb->frontend->callback = cx231xx_tuner_callback; if (!dvb_attach(xc5000_attach, dev->dvb->frontend, &dev->i2c_bus[1].i2c_adap, &cnxt_rdu250_tunerconfig)) { result = -EINVAL; goto out_free; } break; case CX231XX_BOARD_CNXT_RDE_253S: dev->dvb->frontend = dvb_attach(s5h1432_attach, &dvico_s5h1432_config, &dev->i2c_bus[2].i2c_adap); if (dev->dvb->frontend == NULL) { printk(DRIVER_NAME ": Failed to attach s5h1432 front end\n"); result = -EINVAL; goto out_free; } /* define general-purpose callback pointer */ dvb->frontend->callback = cx231xx_tuner_callback; if (!dvb_attach(tda18271_attach, dev->dvb->frontend, 0x60, &dev->i2c_bus[1].i2c_adap, &cnxt_rde253s_tunerconfig)) { result = -EINVAL; goto out_free; } break; case CX231XX_BOARD_CNXT_RDU_253S: dev->dvb->frontend = dvb_attach(s5h1411_attach, &tda18271_s5h1411_config, &dev->i2c_bus[2].i2c_adap); if (dev->dvb->frontend == NULL) { printk(DRIVER_NAME ": Failed to attach dummy front end\n"); result = -EINVAL; goto out_free; } /* define general-purpose callback pointer */ dvb->frontend->callback = cx231xx_tuner_callback; if (!dvb_attach(tda18271_attach, dev->dvb->frontend, 0x60, &dev->i2c_bus[1].i2c_adap, &cnxt_rde253s_tunerconfig)) { result = -EINVAL; goto out_free; } break; default: printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card" " isn't supported yet\n", dev->name); break; } if (NULL == dvb->frontend) { printk(KERN_ERR "%s/2: frontend initialization failed\n", dev->name); result = -EINVAL; goto out_free; } /* register everything */ result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev); if (result < 0) goto out_free; cx231xx_set_mode(dev, CX231XX_SUSPEND); printk(KERN_INFO "Successfully loaded cx231xx-dvb\n"); return 0; out_free: cx231xx_set_mode(dev, CX231XX_SUSPEND); kfree(dvb); dev->dvb = NULL; return result; } static int dvb_fini(struct cx231xx *dev) { if (!dev->board.has_dvb) { /* This device does not support the extension */ return 0; } if (dev->dvb) { unregister_dvb(dev->dvb); dev->dvb = NULL; } return 0; } static struct cx231xx_ops dvb_ops = { .id = CX231XX_DVB, .name = "Cx231xx dvb Extension", .init = dvb_init, .fini = dvb_fini, }; static int __init cx231xx_dvb_register(void) { return cx231xx_register_extension(&dvb_ops); } static void __exit cx231xx_dvb_unregister(void) { cx231xx_unregister_extension(&dvb_ops); } module_init(cx231xx_dvb_register); module_exit(cx231xx_dvb_unregister);