V4L/DVB (6536): Add a hint for boards without unique USB ID
This patch adds a function to allow trying to detect boards that shares the generic IDs. The current detection method is based at eeprom checksum. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab
Родитель
3dbd85ba36
Коммит
03910cc390
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@ -37,6 +37,16 @@
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#include "em28xx.h"
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#include "tuner-xc2028.h"
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static int tuner = -1;
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module_param(tuner, int, 0444);
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MODULE_PARM_DESC(tuner, "tuner type");
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struct em28xx_hash_table {
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unsigned long hash;
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unsigned int model;
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unsigned int tuner;
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};
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struct em28xx_board em28xx_boards[] = {
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[EM2800_BOARD_UNKNOWN] = {
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.name = "Unknown EM2800 video grabber",
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@ -342,70 +352,178 @@ struct usb_device_id em28xx_id_table [] = {
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{ USB_DEVICE(0x0ccd, 0x0047), .driver_info = EM2880_BOARD_TERRATEC_PRODIGY_XS },
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{ },
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};
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MODULE_DEVICE_TABLE (usb, em28xx_id_table);
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static struct em28xx_hash_table em28xx_hash [] = {
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{ 0, 0, 0 },
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};
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/* Since em28xx_pre_card_setup() requires a proper dev->model,
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* this won't work for boards with generic PCI IDs
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*/
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void em28xx_pre_card_setup(struct em28xx *dev)
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{
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/* request some modules */
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switch(dev->model){
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case EM2880_BOARD_TERRATEC_PRODIGY_XS:
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case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
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case EM2880_BOARD_TERRATEC_HYBRID_XS:
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{
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em28xx_write_regs_req(dev, 0x00, 0x08, "\x7d", 1); // reset through GPIO?
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break;
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}
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case EM2880_BOARD_TERRATEC_PRODIGY_XS:
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case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
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case EM2880_BOARD_TERRATEC_HYBRID_XS:
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/* reset through GPIO? */
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em28xx_write_regs_req(dev, 0x00, 0x08, "\x7d", 1);
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break;
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}
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}
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static int em28xx_tuner_callback(void *ptr, int command, int arg)
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{
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int rc = 0;
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struct em28xx *dev = ptr;
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if (dev->tuner_type != TUNER_XC2028)
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return 0;
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switch (command) {
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case XC2028_TUNER_RESET:
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/* FIXME: This is device-dependent */
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dev->em28xx_write_regs_req(dev, 0x00, 0x48, "\x00", 1);
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dev->em28xx_write_regs_req(dev, 0x00, 0x12, "\x67", 1);
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msleep(140);
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break;
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}
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return rc;
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}
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static void em28xx_config_tuner (struct em28xx *dev)
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{
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struct v4l2_priv_tun_config xc2028_cfg;
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struct xc2028_ctrl ctl;
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struct tuner_setup tun_setup;
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struct v4l2_frequency f;
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memset (&ctl,0,sizeof(ctl));
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if (!dev->has_tuner)
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return;
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ctl.fname = XC2028_DEFAULT_FIRMWARE;
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ctl.max_len = 64;
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tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
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tun_setup.type = dev->tuner_type;
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tun_setup.addr = dev->tuner_addr;
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tun_setup.tuner_callback = em28xx_tuner_callback;
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xc2028_cfg.tuner = TUNER_XC2028;
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xc2028_cfg.priv = &ctl;
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em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
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em28xx_i2c_call_clients(dev, TUNER_SET_CONFIG, &xc2028_cfg);
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if (dev->tuner_type == TUNER_XC2028) {
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memset (&ctl, 0, sizeof(ctl));
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ctl.fname = XC2028_DEFAULT_FIRMWARE;
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ctl.max_len = 64;
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xc2028_cfg.tuner = TUNER_XC2028;
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xc2028_cfg.priv = &ctl;
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em28xx_i2c_call_clients(dev, TUNER_SET_CONFIG, &xc2028_cfg);
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}
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/* configure tuner */
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f.tuner = 0;
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f.type = V4L2_TUNER_ANALOG_TV;
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f.frequency = 9076; /* just a magic number */
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dev->ctl_freq = f.frequency;
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em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);
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}
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static int em28xx_hint_board(struct em28xx *dev)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(em28xx_hash); i++) {
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if (dev->hash == em28xx_hash[i].hash) {
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dev->model = em28xx_hash[i].model;
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dev->tuner_type = em28xx_hash[i].tuner;
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em28xx_errdev("Your board has no unique USB ID.\n");
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em28xx_errdev("A hint were successfully done, "
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"based on eeprom hash.\n");
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em28xx_errdev("This method is not 100%% failproof.\n");
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em28xx_errdev("If the board were missdetected, "
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"please email this log to:\n");
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em28xx_errdev("\tV4L Mailing List "
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" <video4linux-list@redhat.com>\n");
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em28xx_errdev("Board detected as %s\n",
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em28xx_boards[dev->model].name);
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return 0;
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}
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}
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em28xx_errdev("Your board has no unique USB ID and thus need a "
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"hint to be detected.\n");
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em28xx_errdev("You may try to use card=<n> insmod option to "
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"workaround that.\n");
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em28xx_errdev("Please send an email with this log to:\n");
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em28xx_errdev("\tV4L Mailing List <video4linux-list@redhat.com>\n");
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em28xx_errdev("Board eeprom hash is 0x%08lx\n", dev->hash);
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em28xx_errdev("Here is a list of valid choices for the card=<n>"
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" insmod option:\n");
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for (i = 0; i < em28xx_bcount; i++) {
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em28xx_errdev(" card=%d -> %s\n",
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i, em28xx_boards[i].name);
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}
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return -1;
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}
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void em28xx_card_setup(struct em28xx *dev)
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{
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/* request some modules */
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switch(dev->model){
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case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2:
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{
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struct tveeprom tv;
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switch (dev->model) {
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case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2:
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{
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struct tveeprom tv;
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#ifdef CONFIG_MODULES
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request_module("tveeprom");
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request_module("ir-kbd-i2c");
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request_module("msp3400");
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request_module("tveeprom");
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request_module("ir-kbd-i2c");
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#endif
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/* Call first TVeeprom */
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/* Call first TVeeprom */
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dev->i2c_client.addr = 0xa0 >> 1;
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tveeprom_hauppauge_analog(&dev->i2c_client, &tv, dev->eedata);
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dev->tuner_type= tv.tuner_type;
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if (tv.audio_processor == AUDIO_CHIP_MSP34XX) {
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dev->i2s_speed=2048000;
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dev->has_msp34xx=1;
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} else
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dev->has_msp34xx=0;
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break;
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}
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case EM2820_BOARD_KWORLD_PVRTV2800RF:
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{
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em28xx_write_regs_req(dev,0x00,0x08, "\xf9", 1); // GPIO enables sound on KWORLD PVR TV 2800RF
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break;
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}
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dev->i2c_client.addr = 0xa0 >> 1;
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tveeprom_hauppauge_analog(&dev->i2c_client, &tv, dev->eedata);
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dev->tuner_type = tv.tuner_type;
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if (tv.audio_processor == AUDIO_CHIP_MSP34XX) {
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dev->i2s_speed = 2048000;
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dev->has_msp34xx = 1;
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}
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break;
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}
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case EM2820_BOARD_KWORLD_PVRTV2800RF:
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/* GPIO enables sound on KWORLD PVR TV 2800RF */
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em28xx_write_regs_req(dev, 0x00, 0x08, "\xf9", 1);
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break;
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case EM2820_BOARD_UNKNOWN:
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case EM2800_BOARD_UNKNOWN:
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em28xx_hint_board(dev);
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}
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dev->is_em2800 = em28xx_boards[dev->model].is_em2800;
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dev->has_tuner = em28xx_boards[dev->model].has_tuner;
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dev->has_msp34xx = em28xx_boards[dev->model].has_msp34xx;
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dev->tda9887_conf = em28xx_boards[dev->model].tda9887_conf;
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dev->decoder = em28xx_boards[dev->model].decoder;
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dev->video_inputs = em28xx_boards[dev->model].vchannels;
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if (tuner >= 0)
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dev->tuner_type = tuner;
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#ifdef CONFIG_MODULES
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/* request some modules */
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if (dev->has_msp34xx)
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request_module("msp3400");
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if (dev->decoder == EM28XX_SAA7113 || dev->decoder == EM28XX_SAA7114)
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request_module("saa7115");
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if (dev->decoder == EM28XX_TVP5150)
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request_module("tvp5150");
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if (dev->has_tuner)
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request_module("tuner");
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#endif
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em28xx_config_tuner (dev);
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}
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MODULE_DEVICE_TABLE (usb, em28xx_id_table);
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@ -292,6 +292,31 @@ static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap,
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return rc;
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}
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/* based on linux/sunrpc/svcauth.h and linux/hash.h
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* The original hash function returns a different value, if arch is x86_64
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* or i386.
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*/
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static inline unsigned long em28xx_hash_mem(char *buf, int length, int bits)
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{
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unsigned long hash = 0;
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unsigned long l = 0;
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int len = 0;
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unsigned char c;
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do {
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if (len == length) {
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c = (char)len;
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len = -1;
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} else
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c = *buf++;
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l = (l << 8) | c;
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len++;
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if ((len & (32 / 8 - 1)) == 0)
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hash = ((hash^l) * 0x9e370001UL);
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} while (len);
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return (hash >> (32 - bits)) & 0xffffffffUL;
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}
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static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
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{
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unsigned char buf, *p = eedata;
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@ -335,7 +360,11 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
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printk("\n");
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}
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printk(KERN_INFO "EEPROM ID= 0x%08x\n", em_eeprom->id);
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if (em_eeprom->id == 0x9567eb1a)
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dev->hash = em28xx_hash_mem(eedata, len, 32);
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printk(KERN_INFO "EEPROM ID= 0x%08x, hash = 0x%08lx\n",
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em_eeprom->id, dev->hash);
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printk(KERN_INFO "Vendor/Product ID= %04x:%04x\n", em_eeprom->vendor_ID,
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em_eeprom->product_ID);
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@ -392,43 +421,6 @@ static u32 functionality(struct i2c_adapter *adap)
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}
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static int em28xx_tuner_callback(void *ptr, int command, int arg)
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{
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int rc = 0;
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struct em28xx *dev = ptr;
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if (dev->tuner_type != TUNER_XC2028)
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return 0;
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switch (command) {
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case XC2028_TUNER_RESET:
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/* FIXME: This is device-dependent */
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dev->em28xx_write_regs_req(dev, 0x00, 0x48, "\x00", 1);
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dev->em28xx_write_regs_req(dev, 0x00, 0x12, "\x67", 1);
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msleep(140);
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break;
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}
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return rc;
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}
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static int em28xx_set_tuner(int check_eeprom, struct i2c_client *client)
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{
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struct em28xx *dev = client->adapter->algo_data;
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struct tuner_setup tun_setup;
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if (dev->has_tuner) {
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tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
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tun_setup.type = dev->tuner_type;
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tun_setup.addr = dev->tuner_addr;
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tun_setup.tuner_callback = em28xx_tuner_callback;
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em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
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}
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return (0);
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}
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/*
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* attach_inform()
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* gets called when a device attaches to the i2c bus
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@ -487,9 +479,11 @@ static int attach_inform(struct i2c_client *client)
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break;
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default:
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if (!dev->tuner_addr)
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dev->tuner_addr = client->addr;
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dprintk1(1,"attach inform: detected I2C address %x\n", client->addr << 1);
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dev->tuner_addr = client->addr;
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em28xx_set_tuner(-1, client);
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}
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return 0;
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@ -37,7 +37,6 @@
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#include <linux/mutex.h>
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#include "em28xx.h"
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#include <media/tuner.h>
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#include <media/v4l2-common.h>
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#include <media/msp3400.h>
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@ -71,10 +70,6 @@ MODULE_PARM_DESC(card,"card type");
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MODULE_PARM_DESC(video_nr,"video device numbers");
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MODULE_PARM_DESC(vbi_nr,"vbi device numbers");
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static int tuner = -1;
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module_param(tuner, int, 0444);
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MODULE_PARM_DESC(tuner, "tuner type");
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static unsigned int video_debug = 0;
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module_param(video_debug,int,0644);
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MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
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@ -171,7 +166,6 @@ static int em28xx_config(struct em28xx *dev)
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*/
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static void em28xx_config_i2c(struct em28xx *dev)
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{
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struct v4l2_frequency f;
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struct v4l2_routing route;
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route.input = INPUT(dev->ctl_input)->vmux;
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@ -179,13 +173,6 @@ static void em28xx_config_i2c(struct em28xx *dev)
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em28xx_i2c_call_clients(dev, VIDIOC_INT_RESET, NULL);
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em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route);
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em28xx_i2c_call_clients(dev, VIDIOC_STREAMON, NULL);
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/* configure tuner */
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f.tuner = 0;
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f.type = V4L2_TUNER_ANALOG_TV;
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f.frequency = 9076; /* FIXME:remove magic number */
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dev->ctl_freq = f.frequency;
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em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);
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}
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/*
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@ -1495,7 +1482,7 @@ static const struct file_operations em28xx_v4l_fops = {
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* allocates and inits the device structs, registers i2c bus and v4l device
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*/
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static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
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int minor, int model)
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int minor)
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{
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struct em28xx *dev = *devhandle;
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int retval = -ENOMEM;
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@ -1503,7 +1490,6 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
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unsigned int maxh, maxw;
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dev->udev = udev;
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dev->model = model;
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mutex_init(&dev->lock);
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init_waitqueue_head(&dev->open);
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@ -1512,26 +1498,47 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
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dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len;
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dev->em28xx_write_regs_req = em28xx_write_regs_req;
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dev->em28xx_read_reg_req = em28xx_read_reg_req;
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dev->is_em2800 = em28xx_boards[model].is_em2800;
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dev->has_tuner = em28xx_boards[model].has_tuner;
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dev->has_msp34xx = em28xx_boards[model].has_msp34xx;
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dev->tda9887_conf = em28xx_boards[model].tda9887_conf;
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dev->decoder = em28xx_boards[model].decoder;
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if (tuner >= 0)
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dev->tuner_type = tuner;
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else
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dev->tuner_type = em28xx_boards[model].tuner_type;
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/* setup video picture settings for saa7113h */
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memset(&dev->vpic, 0, sizeof(dev->vpic));
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dev->vpic.colour = 128 << 8;
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dev->vpic.hue = 128 << 8;
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dev->vpic.brightness = 128 << 8;
|
||||
dev->vpic.contrast = 192 << 8;
|
||||
dev->vpic.whiteness = 128 << 8; /* This one isn't used */
|
||||
dev->vpic.depth = 16;
|
||||
dev->vpic.palette = VIDEO_PALETTE_YUV422;
|
||||
|
||||
dev->video_inputs = em28xx_boards[model].vchannels;
|
||||
em28xx_pre_card_setup(dev);
|
||||
|
||||
errCode = em28xx_config(dev);
|
||||
if (errCode) {
|
||||
em28xx_errdev("error configuring device\n");
|
||||
em28xx_devused &= ~(1<<dev->devno);
|
||||
kfree(dev);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
mutex_lock(&dev->lock);
|
||||
|
||||
/* register i2c bus */
|
||||
em28xx_i2c_register(dev);
|
||||
|
||||
/* Do board specific init and eeprom reading */
|
||||
em28xx_card_setup(dev);
|
||||
|
||||
/* configure the device */
|
||||
em28xx_config_i2c(dev);
|
||||
|
||||
mutex_unlock(&dev->lock);
|
||||
|
||||
for (i = 0; i < TVNORMS; i++)
|
||||
if (em28xx_boards[model].norm == tvnorms[i].mode)
|
||||
if (em28xx_boards[dev->model].norm == tvnorms[i].mode)
|
||||
break;
|
||||
if (i == TVNORMS)
|
||||
i = 0;
|
||||
|
||||
dev->tvnorm = &tvnorms[i]; /* set default norm */
|
||||
dev->tvnorm = &tvnorms[i]; /* set default norm */
|
||||
|
||||
em28xx_videodbg("tvnorm=%s\n", dev->tvnorm->name);
|
||||
|
||||
|
|
@ -1550,52 +1557,8 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
|
|||
dev->vscale = 0;
|
||||
dev->ctl_input = 2;
|
||||
|
||||
/* setup video picture settings for saa7113h */
|
||||
memset(&dev->vpic, 0, sizeof(dev->vpic));
|
||||
dev->vpic.colour = 128 << 8;
|
||||
dev->vpic.hue = 128 << 8;
|
||||
dev->vpic.brightness = 128 << 8;
|
||||
dev->vpic.contrast = 192 << 8;
|
||||
dev->vpic.whiteness = 128 << 8; /* This one isn't used */
|
||||
dev->vpic.depth = 16;
|
||||
dev->vpic.palette = VIDEO_PALETTE_YUV422;
|
||||
|
||||
em28xx_pre_card_setup(dev);
|
||||
#ifdef CONFIG_MODULES
|
||||
/* request some modules */
|
||||
if (dev->decoder == EM28XX_SAA7113 || dev->decoder == EM28XX_SAA7114)
|
||||
request_module("saa7115");
|
||||
if (dev->decoder == EM28XX_TVP5150)
|
||||
request_module("tvp5150");
|
||||
if (dev->has_tuner)
|
||||
request_module("tuner");
|
||||
#endif
|
||||
errCode = em28xx_config(dev);
|
||||
if (errCode) {
|
||||
em28xx_errdev("error configuring device\n");
|
||||
em28xx_devused&=~(1<<dev->devno);
|
||||
kfree(dev);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
mutex_lock(&dev->lock);
|
||||
/* register i2c bus */
|
||||
em28xx_i2c_register(dev);
|
||||
|
||||
/* Do board specific init and eeprom reading */
|
||||
em28xx_card_setup(dev);
|
||||
|
||||
/* configure the device */
|
||||
em28xx_config_i2c(dev);
|
||||
|
||||
mutex_unlock(&dev->lock);
|
||||
|
||||
errCode = em28xx_config(dev);
|
||||
|
||||
#ifdef CONFIG_MODULES
|
||||
if (dev->has_msp34xx)
|
||||
request_module("msp3400");
|
||||
#endif
|
||||
/* allocate and fill v4l2 device struct */
|
||||
dev->vdev = video_device_alloc();
|
||||
if (NULL == dev->vdev) {
|
||||
|
|
@ -1695,7 +1658,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
|
|||
struct usb_interface *uif;
|
||||
struct em28xx *dev = NULL;
|
||||
int retval = -ENODEV;
|
||||
int model,i,nr,ifnum;
|
||||
int i, nr, ifnum;
|
||||
|
||||
udev = usb_get_dev(interface_to_usbdev(interface));
|
||||
ifnum = interface->altsetting[0].desc.bInterfaceNumber;
|
||||
|
|
@ -1735,8 +1698,6 @@ static int em28xx_usb_probe(struct usb_interface *interface,
|
|||
return -ENODEV;
|
||||
}
|
||||
|
||||
model=id->driver_info;
|
||||
|
||||
if (nr >= EM28XX_MAXBOARDS) {
|
||||
printk (DRIVER_NAME ": Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS);
|
||||
em28xx_devused&=~(1<<nr);
|
||||
|
|
@ -1752,7 +1713,8 @@ static int em28xx_usb_probe(struct usb_interface *interface,
|
|||
}
|
||||
|
||||
snprintf(dev->name, 29, "em28xx #%d", nr);
|
||||
dev->devno=nr;
|
||||
dev->devno = nr;
|
||||
dev->model = id->driver_info;
|
||||
|
||||
/* compute alternate max packet sizes */
|
||||
uif = udev->actconfig->interface[0];
|
||||
|
|
@ -1779,26 +1741,14 @@ static int em28xx_usb_probe(struct usb_interface *interface,
|
|||
}
|
||||
|
||||
if ((card[nr]>=0)&&(card[nr]<em28xx_bcount))
|
||||
model=card[nr];
|
||||
|
||||
if ((model==EM2800_BOARD_UNKNOWN)||(model==EM2820_BOARD_UNKNOWN)) {
|
||||
em28xx_errdev("Your board has no unique USB ID and thus can't be autodetected.\n");
|
||||
em28xx_errdev("Please pass card=<n> insmod option to workaround that.\n");
|
||||
em28xx_errdev("If there isn't any card number for you, please send an email to:\n");
|
||||
em28xx_errdev("\tV4L Mailing List <video4linux-list@redhat.com>\n");
|
||||
em28xx_errdev("Here is a list of valid choices for the card=<n> insmod option:\n");
|
||||
for (i = 0; i < em28xx_bcount; i++) {
|
||||
em28xx_errdev(" card=%d -> %s\n", i,
|
||||
em28xx_boards[i].name);
|
||||
}
|
||||
}
|
||||
dev->model = card[nr];
|
||||
|
||||
/* allocate device struct */
|
||||
retval = em28xx_init_dev(&dev, udev, nr, model);
|
||||
retval = em28xx_init_dev(&dev, udev, nr);
|
||||
if (retval)
|
||||
return retval;
|
||||
|
||||
em28xx_info("Found %s\n", em28xx_boards[model].name);
|
||||
em28xx_info("Found %s\n", em28xx_boards[dev->model].name);
|
||||
|
||||
/* save our data pointer in this interface device */
|
||||
usb_set_intfdata(interface, dev);
|
||||
|
|
|
|||
|
|
@ -257,6 +257,8 @@ struct em28xx {
|
|||
int interlaced; /* 1=interlace fileds, 0=just top fileds */
|
||||
int type;
|
||||
|
||||
unsigned long hash; /* eeprom hash - for boards with generic ID */
|
||||
|
||||
/* states */
|
||||
enum em28xx_dev_state state;
|
||||
enum em28xx_stream_state stream;
|
||||
|
|
|
|||
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