David Lin <dlin@xxxxxxxxxxx> writes: > The Linux driver for WRT1900AC. The work was initially developed as part of > openwrt effort and maintained on https://github.com/kaloz/mwlwifi. > > This is still work in progress, with 8864 chipset more mature and tested, > while 8897 for the similar use case is added recently. > > Signed-off-by: David Lin <dlin@xxxxxxxxxxx> [...] > +static void mwl_reg_notifier(struct wiphy *wiphy, > + struct regulatory_request *request) > +{ > +#ifdef CONFIG_OF > + struct ieee80211_hw *hw; > + struct mwl_priv *priv; > + struct property *prop; > + struct property *fcc_prop = NULL; > + struct property *etsi_prop = NULL; > + struct property *specific_prop = NULL; > + u32 prop_value; > + int i, j, k; > + > + hw = (struct ieee80211_hw *)wiphy_priv(wiphy); > + priv = hw->priv; > + > + if (priv->pwr_node) { > + for_each_property_of_node(priv->pwr_node, prop) { > + if (strcmp(prop->name, "FCC") == 0) > + fcc_prop = prop; > + if (strcmp(prop->name, "ETSI") == 0) > + etsi_prop = prop; > + if ((prop->name[0] == request->alpha2[0]) && > + (prop->name[1] == request->alpha2[1])) > + specific_prop = prop; > + } > + > + prop = NULL; > + > + if (specific_prop) { > + prop = specific_prop; > + } else { > + if (request->dfs_region == NL80211_DFS_ETSI) > + prop = etsi_prop; > + else > + prop = fcc_prop; > + } > + > + if (prop) { > + /* Reset the whole table */ > + for (i = 0; i < SYSADPT_MAX_NUM_CHANNELS; i++) > + memset(&priv->tx_pwr_tbl[i], 0, > + sizeof(struct mwl_tx_pwr_tbl)); > + > + /* Load related power table */ > + i = 0; > + j = 0; > + while (i < prop->length) { > + prop_value = > + be32_to_cpu(*(__be32 *) > + (prop->value + i)); > + priv->tx_pwr_tbl[j].channel = prop_value; > + i += 4; > + prop_value = > + be32_to_cpu(*(__be32 *) > + (prop->value + i)); > + priv->tx_pwr_tbl[j].setcap = prop_value; > + i += 4; > + for (k = 0; k < SYSADPT_TX_POWER_LEVEL_TOTAL; > + k++) { > + prop_value = > + be32_to_cpu(*(__be32 *) > + (prop->value + i)); > + priv->tx_pwr_tbl[j].tx_power[k] = > + prop_value; > + i += 4; > + } > + prop_value = > + be32_to_cpu(*(__be32 *) > + (prop->value + i)); > + priv->tx_pwr_tbl[j].cdd = > + (prop_value == 0) ? false : true; > + i += 4; > + prop_value = > + be32_to_cpu(*(__be32 *) > + (prop->value + i)); > + priv->tx_pwr_tbl[j].txantenna2 = prop_value; > + i += 4; > + j++; > + } > + > + /* Dump loaded power tabel */ > + wiphy_info(hw->wiphy, "%s: %s\n", dev_name(&wiphy->dev), > + prop->name); > + for (i = 0; i < SYSADPT_MAX_NUM_CHANNELS; i++) { > + struct mwl_tx_pwr_tbl *pwr_tbl; > + char disp_buf[64]; > + char *disp_ptr; > + > + pwr_tbl = &priv->tx_pwr_tbl[i]; > + if (pwr_tbl->channel == 0) > + break; > + wiphy_info(hw->wiphy, > + "Channel: %d: 0x%x 0x%x 0x%x\n", > + pwr_tbl->channel, > + pwr_tbl->setcap, > + pwr_tbl->cdd, > + pwr_tbl->txantenna2); > + disp_ptr = disp_buf; > + for (j = 0; j < SYSADPT_TX_POWER_LEVEL_TOTAL; > + j++) { > + disp_ptr += > + sprintf(disp_ptr, "%x ", > + pwr_tbl->tx_power[j]); > + } > + wiphy_info(hw->wiphy, "%s\n", disp_buf); > + } > + } > + } > +#endif > +} > + > +static void mwl_process_of_dts(struct mwl_priv *priv) > +{ > +#ifdef CONFIG_OF > + struct property *prop; > + u32 prop_value; > + > + priv->dt_node = > + of_find_node_by_name(pci_bus_to_OF_node(priv->pdev->bus), > + "mwlwifi"); > + if (!priv->dt_node) > + return; > + > + /* look for all matching property names */ > + for_each_property_of_node(priv->dt_node, prop) { > + if (strcmp(prop->name, "marvell,2ghz") == 0) > + priv->disable_2g = true; > + if (strcmp(prop->name, "marvell,5ghz") == 0) > + priv->disable_5g = true; > + if (strcmp(prop->name, "marvell,chainmask") == 0) { > + prop_value = be32_to_cpu(*((__be32 *)prop->value)); > + if (prop_value == 2) > + priv->antenna_tx = ANTENNA_TX_2; > + > + prop_value = be32_to_cpu(*((__be32 *) > + (prop->value + 4))); > + if (prop_value == 2) > + priv->antenna_rx = ANTENNA_RX_2; > + } > + } > + > + priv->pwr_node = of_find_node_by_name(priv->dt_node, > + "marvell,powertable"); > +#endif > +} The device tree bindings need a proper document in Documentation/devicetree/bindings and reviewed by the device tree folks. That might take some time as I suspect having something like regdomain in DT will be problematic, so I recommend to take this out from initial submission and resend later once properly acked by the device tree maintainers. -- Kalle Valo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
