1dad0d04fSFariya Fatima /** 2dad0d04fSFariya Fatima * Copyright (c) 2014 Redpine Signals Inc. 3dad0d04fSFariya Fatima * 4dad0d04fSFariya Fatima * Permission to use, copy, modify, and/or distribute this software for any 5dad0d04fSFariya Fatima * purpose with or without fee is hereby granted, provided that the above 6dad0d04fSFariya Fatima * copyright notice and this permission notice appear in all copies. 7dad0d04fSFariya Fatima * 8dad0d04fSFariya Fatima * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9dad0d04fSFariya Fatima * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10dad0d04fSFariya Fatima * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11dad0d04fSFariya Fatima * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12dad0d04fSFariya Fatima * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13dad0d04fSFariya Fatima * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14dad0d04fSFariya Fatima * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15dad0d04fSFariya Fatima * 16dad0d04fSFariya Fatima */ 17dad0d04fSFariya Fatima 18dad0d04fSFariya Fatima #include <linux/module.h> 19dad0d04fSFariya Fatima #include "rsi_usb.h" 20dad0d04fSFariya Fatima 21dad0d04fSFariya Fatima /** 22dad0d04fSFariya Fatima * rsi_usb_card_write() - This function writes to the USB Card. 23dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 24dad0d04fSFariya Fatima * @buf: Pointer to the buffer from where the data has to be taken. 25dad0d04fSFariya Fatima * @len: Length to be written. 26dad0d04fSFariya Fatima * @endpoint: Type of endpoint. 27dad0d04fSFariya Fatima * 2850591c60SAlexey Khoroshilov * Return: status: 0 on success, a negative error code on failure. 29dad0d04fSFariya Fatima */ 30dad0d04fSFariya Fatima static int rsi_usb_card_write(struct rsi_hw *adapter, 31dad0d04fSFariya Fatima void *buf, 32dad0d04fSFariya Fatima u16 len, 33dad0d04fSFariya Fatima u8 endpoint) 34dad0d04fSFariya Fatima { 35dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 36dad0d04fSFariya Fatima int status; 37dad0d04fSFariya Fatima s32 transfer; 38dad0d04fSFariya Fatima 39dad0d04fSFariya Fatima status = usb_bulk_msg(dev->usbdev, 40dad0d04fSFariya Fatima usb_sndbulkpipe(dev->usbdev, 41dad0d04fSFariya Fatima dev->bulkout_endpoint_addr[endpoint - 1]), 42dad0d04fSFariya Fatima buf, 43dad0d04fSFariya Fatima len, 44dad0d04fSFariya Fatima &transfer, 45dad0d04fSFariya Fatima HZ * 5); 46dad0d04fSFariya Fatima 47dad0d04fSFariya Fatima if (status < 0) { 48dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 49dad0d04fSFariya Fatima "Card write failed with error code :%10d\n", status); 50dad0d04fSFariya Fatima dev->write_fail = 1; 51dad0d04fSFariya Fatima } 52dad0d04fSFariya Fatima return status; 53dad0d04fSFariya Fatima } 54dad0d04fSFariya Fatima 55dad0d04fSFariya Fatima /** 56dad0d04fSFariya Fatima * rsi_write_multiple() - This function writes multiple bytes of information 57dad0d04fSFariya Fatima * to the USB card. 58dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 59dad0d04fSFariya Fatima * @addr: Address of the register. 60dad0d04fSFariya Fatima * @data: Pointer to the data that has to be written. 61dad0d04fSFariya Fatima * @count: Number of multiple bytes to be written. 62dad0d04fSFariya Fatima * 6350591c60SAlexey Khoroshilov * Return: 0 on success, a negative error code on failure. 64dad0d04fSFariya Fatima */ 65dad0d04fSFariya Fatima static int rsi_write_multiple(struct rsi_hw *adapter, 66dad0d04fSFariya Fatima u8 endpoint, 67dad0d04fSFariya Fatima u8 *data, 68dad0d04fSFariya Fatima u32 count) 69dad0d04fSFariya Fatima { 70dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 71dad0d04fSFariya Fatima u8 *seg = dev->tx_buffer; 72dad0d04fSFariya Fatima 73dad0d04fSFariya Fatima if (dev->write_fail) 74dad0d04fSFariya Fatima return 0; 75dad0d04fSFariya Fatima 76dad0d04fSFariya Fatima if (endpoint == MGMT_EP) { 77dad0d04fSFariya Fatima memset(seg, 0, RSI_USB_TX_HEAD_ROOM); 78dad0d04fSFariya Fatima memcpy(seg + RSI_USB_TX_HEAD_ROOM, data, count); 79dad0d04fSFariya Fatima } else { 80dad0d04fSFariya Fatima seg = ((u8 *)data - RSI_USB_TX_HEAD_ROOM); 81dad0d04fSFariya Fatima } 82dad0d04fSFariya Fatima 83dad0d04fSFariya Fatima return rsi_usb_card_write(adapter, 84dad0d04fSFariya Fatima seg, 85dad0d04fSFariya Fatima count + RSI_USB_TX_HEAD_ROOM, 86dad0d04fSFariya Fatima endpoint); 87dad0d04fSFariya Fatima } 88dad0d04fSFariya Fatima 89dad0d04fSFariya Fatima /** 90dad0d04fSFariya Fatima * rsi_find_bulk_in_and_out_endpoints() - This function initializes the bulk 91dad0d04fSFariya Fatima * endpoints to the device. 92dad0d04fSFariya Fatima * @interface: Pointer to the USB interface structure. 93dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 94dad0d04fSFariya Fatima * 95dad0d04fSFariya Fatima * Return: ret_val: 0 on success, -ENOMEM on failure. 96dad0d04fSFariya Fatima */ 97dad0d04fSFariya Fatima static int rsi_find_bulk_in_and_out_endpoints(struct usb_interface *interface, 98dad0d04fSFariya Fatima struct rsi_hw *adapter) 99dad0d04fSFariya Fatima { 100dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 101dad0d04fSFariya Fatima struct usb_host_interface *iface_desc; 102dad0d04fSFariya Fatima struct usb_endpoint_descriptor *endpoint; 103dad0d04fSFariya Fatima __le16 buffer_size; 104dad0d04fSFariya Fatima int ii, bep_found = 0; 105dad0d04fSFariya Fatima 106dad0d04fSFariya Fatima iface_desc = &(interface->altsetting[0]); 107dad0d04fSFariya Fatima 108dad0d04fSFariya Fatima for (ii = 0; ii < iface_desc->desc.bNumEndpoints; ++ii) { 109dad0d04fSFariya Fatima endpoint = &(iface_desc->endpoint[ii].desc); 110dad0d04fSFariya Fatima 111dad0d04fSFariya Fatima if ((!(dev->bulkin_endpoint_addr)) && 112dad0d04fSFariya Fatima (endpoint->bEndpointAddress & USB_DIR_IN) && 113dad0d04fSFariya Fatima ((endpoint->bmAttributes & 114dad0d04fSFariya Fatima USB_ENDPOINT_XFERTYPE_MASK) == 115dad0d04fSFariya Fatima USB_ENDPOINT_XFER_BULK)) { 116dad0d04fSFariya Fatima buffer_size = endpoint->wMaxPacketSize; 117dad0d04fSFariya Fatima dev->bulkin_size = buffer_size; 118dad0d04fSFariya Fatima dev->bulkin_endpoint_addr = 119dad0d04fSFariya Fatima endpoint->bEndpointAddress; 120dad0d04fSFariya Fatima } 121dad0d04fSFariya Fatima 122dad0d04fSFariya Fatima if (!dev->bulkout_endpoint_addr[bep_found] && 123dad0d04fSFariya Fatima !(endpoint->bEndpointAddress & USB_DIR_IN) && 124dad0d04fSFariya Fatima ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == 125dad0d04fSFariya Fatima USB_ENDPOINT_XFER_BULK)) { 126dad0d04fSFariya Fatima dev->bulkout_endpoint_addr[bep_found] = 127dad0d04fSFariya Fatima endpoint->bEndpointAddress; 128dad0d04fSFariya Fatima buffer_size = endpoint->wMaxPacketSize; 129dad0d04fSFariya Fatima dev->bulkout_size[bep_found] = buffer_size; 130dad0d04fSFariya Fatima bep_found++; 131dad0d04fSFariya Fatima } 132dad0d04fSFariya Fatima 133dad0d04fSFariya Fatima if (bep_found >= MAX_BULK_EP) 134dad0d04fSFariya Fatima break; 135dad0d04fSFariya Fatima } 136dad0d04fSFariya Fatima 137dad0d04fSFariya Fatima if (!(dev->bulkin_endpoint_addr) && 138dad0d04fSFariya Fatima (dev->bulkout_endpoint_addr[0])) 139dad0d04fSFariya Fatima return -EINVAL; 140dad0d04fSFariya Fatima 141dad0d04fSFariya Fatima return 0; 142dad0d04fSFariya Fatima } 143dad0d04fSFariya Fatima 1444b1fc881SPrameela Rani Garnepudi #define RSI_USB_REQ_OUT (USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE) 1454b1fc881SPrameela Rani Garnepudi #define RSI_USB_REQ_IN (USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE) 1464b1fc881SPrameela Rani Garnepudi 147dad0d04fSFariya Fatima /* rsi_usb_reg_read() - This function reads data from given register address. 148dad0d04fSFariya Fatima * @usbdev: Pointer to the usb_device structure. 149dad0d04fSFariya Fatima * @reg: Address of the register to be read. 150dad0d04fSFariya Fatima * @value: Value to be read. 151dad0d04fSFariya Fatima * @len: length of data to be read. 152dad0d04fSFariya Fatima * 15350591c60SAlexey Khoroshilov * Return: status: 0 on success, a negative error code on failure. 154dad0d04fSFariya Fatima */ 155dad0d04fSFariya Fatima static int rsi_usb_reg_read(struct usb_device *usbdev, 156dad0d04fSFariya Fatima u32 reg, 157dad0d04fSFariya Fatima u16 *value, 158dad0d04fSFariya Fatima u16 len) 159dad0d04fSFariya Fatima { 160d453ba81SFariya Fatima u8 *buf; 161d453ba81SFariya Fatima int status = -ENOMEM; 162d453ba81SFariya Fatima 163d453ba81SFariya Fatima buf = kmalloc(0x04, GFP_KERNEL); 164d453ba81SFariya Fatima if (!buf) 165d453ba81SFariya Fatima return status; 166dad0d04fSFariya Fatima 167dad0d04fSFariya Fatima status = usb_control_msg(usbdev, 168dad0d04fSFariya Fatima usb_rcvctrlpipe(usbdev, 0), 169dad0d04fSFariya Fatima USB_VENDOR_REGISTER_READ, 1704b1fc881SPrameela Rani Garnepudi RSI_USB_REQ_IN, 171dad0d04fSFariya Fatima ((reg & 0xffff0000) >> 16), (reg & 0xffff), 172d453ba81SFariya Fatima (void *)buf, 173dad0d04fSFariya Fatima len, 1744b1fc881SPrameela Rani Garnepudi USB_CTRL_GET_TIMEOUT); 175dad0d04fSFariya Fatima 176d453ba81SFariya Fatima *value = (buf[0] | (buf[1] << 8)); 177dad0d04fSFariya Fatima if (status < 0) { 178dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 179dad0d04fSFariya Fatima "%s: Reg read failed with error code :%d\n", 180dad0d04fSFariya Fatima __func__, status); 181dad0d04fSFariya Fatima } 182d453ba81SFariya Fatima kfree(buf); 183d453ba81SFariya Fatima 184dad0d04fSFariya Fatima return status; 185dad0d04fSFariya Fatima } 186dad0d04fSFariya Fatima 187dad0d04fSFariya Fatima /** 188dad0d04fSFariya Fatima * rsi_usb_reg_write() - This function writes the given data into the given 189dad0d04fSFariya Fatima * register address. 190dad0d04fSFariya Fatima * @usbdev: Pointer to the usb_device structure. 191dad0d04fSFariya Fatima * @reg: Address of the register. 192dad0d04fSFariya Fatima * @value: Value to write. 193dad0d04fSFariya Fatima * @len: Length of data to be written. 194dad0d04fSFariya Fatima * 19550591c60SAlexey Khoroshilov * Return: status: 0 on success, a negative error code on failure. 196dad0d04fSFariya Fatima */ 197dad0d04fSFariya Fatima static int rsi_usb_reg_write(struct usb_device *usbdev, 198dad0d04fSFariya Fatima u32 reg, 199dad0d04fSFariya Fatima u16 value, 200dad0d04fSFariya Fatima u16 len) 201dad0d04fSFariya Fatima { 202d453ba81SFariya Fatima u8 *usb_reg_buf; 203d453ba81SFariya Fatima int status = -ENOMEM; 204d453ba81SFariya Fatima 205d453ba81SFariya Fatima usb_reg_buf = kmalloc(0x04, GFP_KERNEL); 206d453ba81SFariya Fatima if (!usb_reg_buf) 207d453ba81SFariya Fatima return status; 208dad0d04fSFariya Fatima 209dad0d04fSFariya Fatima usb_reg_buf[0] = (value & 0x00ff); 210dad0d04fSFariya Fatima usb_reg_buf[1] = (value & 0xff00) >> 8; 211dad0d04fSFariya Fatima usb_reg_buf[2] = 0x0; 212dad0d04fSFariya Fatima usb_reg_buf[3] = 0x0; 213dad0d04fSFariya Fatima 214dad0d04fSFariya Fatima status = usb_control_msg(usbdev, 215dad0d04fSFariya Fatima usb_sndctrlpipe(usbdev, 0), 216dad0d04fSFariya Fatima USB_VENDOR_REGISTER_WRITE, 2174b1fc881SPrameela Rani Garnepudi RSI_USB_REQ_OUT, 218dad0d04fSFariya Fatima ((reg & 0xffff0000) >> 16), 219dad0d04fSFariya Fatima (reg & 0xffff), 220dad0d04fSFariya Fatima (void *)usb_reg_buf, 221dad0d04fSFariya Fatima len, 2224b1fc881SPrameela Rani Garnepudi USB_CTRL_SET_TIMEOUT); 223dad0d04fSFariya Fatima if (status < 0) { 224dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 225dad0d04fSFariya Fatima "%s: Reg write failed with error code :%d\n", 226dad0d04fSFariya Fatima __func__, status); 227dad0d04fSFariya Fatima } 228d453ba81SFariya Fatima kfree(usb_reg_buf); 229d453ba81SFariya Fatima 230dad0d04fSFariya Fatima return status; 231dad0d04fSFariya Fatima } 232dad0d04fSFariya Fatima 233dad0d04fSFariya Fatima /** 234dad0d04fSFariya Fatima * rsi_rx_done_handler() - This function is called when a packet is received 235dad0d04fSFariya Fatima * from USB stack. This is callback to recieve done. 236dad0d04fSFariya Fatima * @urb: Received URB. 237dad0d04fSFariya Fatima * 238dad0d04fSFariya Fatima * Return: None. 239dad0d04fSFariya Fatima */ 240dad0d04fSFariya Fatima static void rsi_rx_done_handler(struct urb *urb) 241dad0d04fSFariya Fatima { 242dad0d04fSFariya Fatima struct rsi_hw *adapter = urb->context; 243dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 244dad0d04fSFariya Fatima 245dad0d04fSFariya Fatima if (urb->status) 246dad0d04fSFariya Fatima return; 247dad0d04fSFariya Fatima 248dad0d04fSFariya Fatima rsi_set_event(&dev->rx_thread.event); 249dad0d04fSFariya Fatima } 250dad0d04fSFariya Fatima 251dad0d04fSFariya Fatima /** 252dad0d04fSFariya Fatima * rsi_rx_urb_submit() - This function submits the given URB to the USB stack. 253dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 254dad0d04fSFariya Fatima * 25550591c60SAlexey Khoroshilov * Return: 0 on success, a negative error code on failure. 256dad0d04fSFariya Fatima */ 257dad0d04fSFariya Fatima static int rsi_rx_urb_submit(struct rsi_hw *adapter) 258dad0d04fSFariya Fatima { 259dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 260dad0d04fSFariya Fatima struct urb *urb = dev->rx_usb_urb[0]; 261dad0d04fSFariya Fatima int status; 262dad0d04fSFariya Fatima 263dad0d04fSFariya Fatima usb_fill_bulk_urb(urb, 264dad0d04fSFariya Fatima dev->usbdev, 265dad0d04fSFariya Fatima usb_rcvbulkpipe(dev->usbdev, 266dad0d04fSFariya Fatima dev->bulkin_endpoint_addr), 267dad0d04fSFariya Fatima urb->transfer_buffer, 268dad0d04fSFariya Fatima 3000, 269dad0d04fSFariya Fatima rsi_rx_done_handler, 270dad0d04fSFariya Fatima adapter); 271dad0d04fSFariya Fatima 272dad0d04fSFariya Fatima status = usb_submit_urb(urb, GFP_KERNEL); 273dad0d04fSFariya Fatima if (status) 274dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Failed in urb submission\n", __func__); 275dad0d04fSFariya Fatima 276dad0d04fSFariya Fatima return status; 277dad0d04fSFariya Fatima } 278dad0d04fSFariya Fatima 27988fa51e1SPrameela Rani Garnepudi static int rsi_usb_read_register_multiple(struct rsi_hw *adapter, u32 addr, 28088fa51e1SPrameela Rani Garnepudi u8 *data, u16 count) 28188fa51e1SPrameela Rani Garnepudi { 28288fa51e1SPrameela Rani Garnepudi struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 28388fa51e1SPrameela Rani Garnepudi u8 *buf; 28488fa51e1SPrameela Rani Garnepudi u16 transfer; 28588fa51e1SPrameela Rani Garnepudi int status; 28688fa51e1SPrameela Rani Garnepudi 28788fa51e1SPrameela Rani Garnepudi if (!addr) 28888fa51e1SPrameela Rani Garnepudi return -EINVAL; 28988fa51e1SPrameela Rani Garnepudi 29088fa51e1SPrameela Rani Garnepudi buf = kzalloc(RSI_USB_BUF_SIZE, GFP_KERNEL); 29188fa51e1SPrameela Rani Garnepudi if (!buf) 29288fa51e1SPrameela Rani Garnepudi return -ENOMEM; 29388fa51e1SPrameela Rani Garnepudi 29488fa51e1SPrameela Rani Garnepudi while (count) { 29588fa51e1SPrameela Rani Garnepudi transfer = min_t(u16, count, RSI_USB_BUF_SIZE); 29688fa51e1SPrameela Rani Garnepudi status = usb_control_msg(dev->usbdev, 29788fa51e1SPrameela Rani Garnepudi usb_rcvctrlpipe(dev->usbdev, 0), 29888fa51e1SPrameela Rani Garnepudi USB_VENDOR_REGISTER_READ, 29988fa51e1SPrameela Rani Garnepudi RSI_USB_REQ_IN, 30088fa51e1SPrameela Rani Garnepudi ((addr & 0xffff0000) >> 16), 30188fa51e1SPrameela Rani Garnepudi (addr & 0xffff), (void *)buf, 30288fa51e1SPrameela Rani Garnepudi transfer, USB_CTRL_GET_TIMEOUT); 30388fa51e1SPrameela Rani Garnepudi if (status < 0) { 30488fa51e1SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 30588fa51e1SPrameela Rani Garnepudi "Reg read failed with error code :%d\n", 30688fa51e1SPrameela Rani Garnepudi status); 30788fa51e1SPrameela Rani Garnepudi kfree(buf); 30888fa51e1SPrameela Rani Garnepudi return status; 30988fa51e1SPrameela Rani Garnepudi } 31088fa51e1SPrameela Rani Garnepudi memcpy(data, buf, transfer); 31188fa51e1SPrameela Rani Garnepudi count -= transfer; 31288fa51e1SPrameela Rani Garnepudi data += transfer; 31388fa51e1SPrameela Rani Garnepudi addr += transfer; 31488fa51e1SPrameela Rani Garnepudi } 31588fa51e1SPrameela Rani Garnepudi kfree(buf); 31688fa51e1SPrameela Rani Garnepudi return 0; 31788fa51e1SPrameela Rani Garnepudi } 31888fa51e1SPrameela Rani Garnepudi 319dad0d04fSFariya Fatima /** 320dad0d04fSFariya Fatima * rsi_usb_write_register_multiple() - This function writes multiple bytes of 321dad0d04fSFariya Fatima * information to multiple registers. 322dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 323dad0d04fSFariya Fatima * @addr: Address of the register. 324dad0d04fSFariya Fatima * @data: Pointer to the data that has to be written. 325dad0d04fSFariya Fatima * @count: Number of multiple bytes to be written on to the registers. 326dad0d04fSFariya Fatima * 32750591c60SAlexey Khoroshilov * Return: status: 0 on success, a negative error code on failure. 328dad0d04fSFariya Fatima */ 329dad0d04fSFariya Fatima int rsi_usb_write_register_multiple(struct rsi_hw *adapter, 330dad0d04fSFariya Fatima u32 addr, 331dad0d04fSFariya Fatima u8 *data, 3322fbbe517SPrameela Rani Garnepudi u16 count) 333dad0d04fSFariya Fatima { 334dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 335dad0d04fSFariya Fatima u8 *buf; 3362fbbe517SPrameela Rani Garnepudi u16 transfer; 337dad0d04fSFariya Fatima int status = 0; 338dad0d04fSFariya Fatima 3397bdead7aSamit karwar buf = kzalloc(RSI_USB_BUF_SIZE, GFP_KERNEL); 340dad0d04fSFariya Fatima if (!buf) 341dad0d04fSFariya Fatima return -ENOMEM; 342dad0d04fSFariya Fatima 343dad0d04fSFariya Fatima while (count) { 3442fbbe517SPrameela Rani Garnepudi transfer = min_t(u16, count, RSI_USB_BUF_SIZE); 345dad0d04fSFariya Fatima memcpy(buf, data, transfer); 346dad0d04fSFariya Fatima status = usb_control_msg(dev->usbdev, 347dad0d04fSFariya Fatima usb_sndctrlpipe(dev->usbdev, 0), 348dad0d04fSFariya Fatima USB_VENDOR_REGISTER_WRITE, 3494b1fc881SPrameela Rani Garnepudi RSI_USB_REQ_OUT, 350dad0d04fSFariya Fatima ((addr & 0xffff0000) >> 16), 351dad0d04fSFariya Fatima (addr & 0xffff), 352dad0d04fSFariya Fatima (void *)buf, 353dad0d04fSFariya Fatima transfer, 3544b1fc881SPrameela Rani Garnepudi USB_CTRL_SET_TIMEOUT); 355dad0d04fSFariya Fatima if (status < 0) { 356dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 357dad0d04fSFariya Fatima "Reg write failed with error code :%d\n", 358dad0d04fSFariya Fatima status); 359ea3336acSPrameela Rani Garnepudi kfree(buf); 360ea3336acSPrameela Rani Garnepudi return status; 361ea3336acSPrameela Rani Garnepudi } 362dad0d04fSFariya Fatima count -= transfer; 363dad0d04fSFariya Fatima data += transfer; 364dad0d04fSFariya Fatima addr += transfer; 365dad0d04fSFariya Fatima } 366dad0d04fSFariya Fatima 367dad0d04fSFariya Fatima kfree(buf); 368dad0d04fSFariya Fatima return 0; 369dad0d04fSFariya Fatima } 370dad0d04fSFariya Fatima 371dad0d04fSFariya Fatima /** 372dad0d04fSFariya Fatima *rsi_usb_host_intf_write_pkt() - This function writes the packet to the 373dad0d04fSFariya Fatima * USB card. 374dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 375dad0d04fSFariya Fatima * @pkt: Pointer to the data to be written on to the card. 376dad0d04fSFariya Fatima * @len: Length of the data to be written on to the card. 377dad0d04fSFariya Fatima * 37850591c60SAlexey Khoroshilov * Return: 0 on success, a negative error code on failure. 379dad0d04fSFariya Fatima */ 380dad0d04fSFariya Fatima static int rsi_usb_host_intf_write_pkt(struct rsi_hw *adapter, 381dad0d04fSFariya Fatima u8 *pkt, 382dad0d04fSFariya Fatima u32 len) 383dad0d04fSFariya Fatima { 384dad0d04fSFariya Fatima u32 queueno = ((pkt[1] >> 4) & 0xf); 385dad0d04fSFariya Fatima u8 endpoint; 386dad0d04fSFariya Fatima 387dad0d04fSFariya Fatima endpoint = ((queueno == RSI_WIFI_MGMT_Q) ? MGMT_EP : DATA_EP); 388dad0d04fSFariya Fatima 389dad0d04fSFariya Fatima return rsi_write_multiple(adapter, 390dad0d04fSFariya Fatima endpoint, 391dad0d04fSFariya Fatima (u8 *)pkt, 392dad0d04fSFariya Fatima len); 393dad0d04fSFariya Fatima } 394dad0d04fSFariya Fatima 395b97e9b94SPrameela Rani Garnepudi static int rsi_usb_master_reg_read(struct rsi_hw *adapter, u32 reg, 396b97e9b94SPrameela Rani Garnepudi u32 *value, u16 len) 397b97e9b94SPrameela Rani Garnepudi { 398b97e9b94SPrameela Rani Garnepudi struct usb_device *usbdev = 399b97e9b94SPrameela Rani Garnepudi ((struct rsi_91x_usbdev *)adapter->rsi_dev)->usbdev; 400b97e9b94SPrameela Rani Garnepudi 401b97e9b94SPrameela Rani Garnepudi return rsi_usb_reg_read(usbdev, reg, (u16 *)value, len); 402b97e9b94SPrameela Rani Garnepudi } 403b97e9b94SPrameela Rani Garnepudi 404b97e9b94SPrameela Rani Garnepudi static int rsi_usb_master_reg_write(struct rsi_hw *adapter, 405b97e9b94SPrameela Rani Garnepudi unsigned long reg, 406b97e9b94SPrameela Rani Garnepudi unsigned long value, u16 len) 407b97e9b94SPrameela Rani Garnepudi { 408b97e9b94SPrameela Rani Garnepudi struct usb_device *usbdev = 409b97e9b94SPrameela Rani Garnepudi ((struct rsi_91x_usbdev *)adapter->rsi_dev)->usbdev; 410b97e9b94SPrameela Rani Garnepudi 411b97e9b94SPrameela Rani Garnepudi return rsi_usb_reg_write(usbdev, reg, value, len); 412b97e9b94SPrameela Rani Garnepudi } 413b97e9b94SPrameela Rani Garnepudi 414b97e9b94SPrameela Rani Garnepudi static int rsi_usb_load_data_master_write(struct rsi_hw *adapter, 415b97e9b94SPrameela Rani Garnepudi u32 base_address, 416b97e9b94SPrameela Rani Garnepudi u32 instructions_sz, u16 block_size, 417b97e9b94SPrameela Rani Garnepudi u8 *ta_firmware) 418b97e9b94SPrameela Rani Garnepudi { 419b97e9b94SPrameela Rani Garnepudi u16 num_blocks; 420b97e9b94SPrameela Rani Garnepudi u32 cur_indx, i; 421b97e9b94SPrameela Rani Garnepudi u8 temp_buf[256]; 422b97e9b94SPrameela Rani Garnepudi int status; 423b97e9b94SPrameela Rani Garnepudi 424b97e9b94SPrameela Rani Garnepudi num_blocks = instructions_sz / block_size; 425b97e9b94SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "num_blocks: %d\n", num_blocks); 426b97e9b94SPrameela Rani Garnepudi 427b97e9b94SPrameela Rani Garnepudi for (cur_indx = 0, i = 0; i < num_blocks; i++, cur_indx += block_size) { 428b97e9b94SPrameela Rani Garnepudi memset(temp_buf, 0, block_size); 429b97e9b94SPrameela Rani Garnepudi memcpy(temp_buf, ta_firmware + cur_indx, block_size); 430b97e9b94SPrameela Rani Garnepudi status = rsi_usb_write_register_multiple(adapter, base_address, 431b97e9b94SPrameela Rani Garnepudi (u8 *)(temp_buf), 432b97e9b94SPrameela Rani Garnepudi block_size); 433b97e9b94SPrameela Rani Garnepudi if (status < 0) 434b97e9b94SPrameela Rani Garnepudi return status; 435b97e9b94SPrameela Rani Garnepudi 436b97e9b94SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: loading block: %d\n", __func__, i); 437b97e9b94SPrameela Rani Garnepudi base_address += block_size; 438b97e9b94SPrameela Rani Garnepudi } 439b97e9b94SPrameela Rani Garnepudi 440b97e9b94SPrameela Rani Garnepudi if (instructions_sz % block_size) { 441b97e9b94SPrameela Rani Garnepudi memset(temp_buf, 0, block_size); 442b97e9b94SPrameela Rani Garnepudi memcpy(temp_buf, ta_firmware + cur_indx, 443b97e9b94SPrameela Rani Garnepudi instructions_sz % block_size); 444b97e9b94SPrameela Rani Garnepudi status = rsi_usb_write_register_multiple 445b97e9b94SPrameela Rani Garnepudi (adapter, base_address, 446b97e9b94SPrameela Rani Garnepudi (u8 *)temp_buf, 447b97e9b94SPrameela Rani Garnepudi instructions_sz % block_size); 448b97e9b94SPrameela Rani Garnepudi if (status < 0) 449b97e9b94SPrameela Rani Garnepudi return status; 450b97e9b94SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, 451b97e9b94SPrameela Rani Garnepudi "Written Last Block in Address 0x%x Successfully\n", 452b97e9b94SPrameela Rani Garnepudi cur_indx); 453b97e9b94SPrameela Rani Garnepudi } 454b97e9b94SPrameela Rani Garnepudi return 0; 455b97e9b94SPrameela Rani Garnepudi } 456b97e9b94SPrameela Rani Garnepudi 457a2ce952cSPrameela Rani Garnepudi static struct rsi_host_intf_ops usb_host_intf_ops = { 458a2ce952cSPrameela Rani Garnepudi .write_pkt = rsi_usb_host_intf_write_pkt, 459a2ce952cSPrameela Rani Garnepudi .read_reg_multiple = rsi_usb_read_register_multiple, 460a2ce952cSPrameela Rani Garnepudi .write_reg_multiple = rsi_usb_write_register_multiple, 461b97e9b94SPrameela Rani Garnepudi .master_reg_read = rsi_usb_master_reg_read, 462b97e9b94SPrameela Rani Garnepudi .master_reg_write = rsi_usb_master_reg_write, 463b97e9b94SPrameela Rani Garnepudi .load_data_master_write = rsi_usb_load_data_master_write, 464a2ce952cSPrameela Rani Garnepudi }; 465a2ce952cSPrameela Rani Garnepudi 466dad0d04fSFariya Fatima /** 467dad0d04fSFariya Fatima * rsi_deinit_usb_interface() - This function deinitializes the usb interface. 468dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 469dad0d04fSFariya Fatima * 470dad0d04fSFariya Fatima * Return: None. 471dad0d04fSFariya Fatima */ 472dad0d04fSFariya Fatima static void rsi_deinit_usb_interface(struct rsi_hw *adapter) 473dad0d04fSFariya Fatima { 474dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 475dad0d04fSFariya Fatima 476dad0d04fSFariya Fatima rsi_kill_thread(&dev->rx_thread); 47750591c60SAlexey Khoroshilov usb_free_urb(dev->rx_usb_urb[0]); 478dad0d04fSFariya Fatima kfree(adapter->priv->rx_data_pkt); 479dad0d04fSFariya Fatima kfree(dev->tx_buffer); 480dad0d04fSFariya Fatima } 481dad0d04fSFariya Fatima 482dad0d04fSFariya Fatima /** 483dad0d04fSFariya Fatima * rsi_init_usb_interface() - This function initializes the usb interface. 484dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 485dad0d04fSFariya Fatima * @pfunction: Pointer to USB interface structure. 486dad0d04fSFariya Fatima * 48750591c60SAlexey Khoroshilov * Return: 0 on success, a negative error code on failure. 488dad0d04fSFariya Fatima */ 489dad0d04fSFariya Fatima static int rsi_init_usb_interface(struct rsi_hw *adapter, 490dad0d04fSFariya Fatima struct usb_interface *pfunction) 491dad0d04fSFariya Fatima { 492dad0d04fSFariya Fatima struct rsi_91x_usbdev *rsi_dev; 493dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 494dad0d04fSFariya Fatima int status; 495dad0d04fSFariya Fatima 496dad0d04fSFariya Fatima rsi_dev = kzalloc(sizeof(*rsi_dev), GFP_KERNEL); 497dad0d04fSFariya Fatima if (!rsi_dev) 498dad0d04fSFariya Fatima return -ENOMEM; 499dad0d04fSFariya Fatima 500dad0d04fSFariya Fatima adapter->rsi_dev = rsi_dev; 501dad0d04fSFariya Fatima rsi_dev->usbdev = interface_to_usbdev(pfunction); 502dad0d04fSFariya Fatima 503dad0d04fSFariya Fatima if (rsi_find_bulk_in_and_out_endpoints(pfunction, adapter)) 504dad0d04fSFariya Fatima return -EINVAL; 505dad0d04fSFariya Fatima 506dad0d04fSFariya Fatima adapter->device = &pfunction->dev; 507dad0d04fSFariya Fatima usb_set_intfdata(pfunction, adapter); 508dad0d04fSFariya Fatima 509dad0d04fSFariya Fatima common->rx_data_pkt = kmalloc(2048, GFP_KERNEL); 510dad0d04fSFariya Fatima if (!common->rx_data_pkt) { 511dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Failed to allocate memory\n", 512dad0d04fSFariya Fatima __func__); 513dad0d04fSFariya Fatima return -ENOMEM; 514dad0d04fSFariya Fatima } 515dad0d04fSFariya Fatima 5165bc5ca85SAlexey Khoroshilov rsi_dev->tx_buffer = kmalloc(2048, GFP_KERNEL); 51750591c60SAlexey Khoroshilov if (!rsi_dev->tx_buffer) { 51850591c60SAlexey Khoroshilov status = -ENOMEM; 51950591c60SAlexey Khoroshilov goto fail_tx; 52050591c60SAlexey Khoroshilov } 521dad0d04fSFariya Fatima rsi_dev->rx_usb_urb[0] = usb_alloc_urb(0, GFP_KERNEL); 52250591c60SAlexey Khoroshilov if (!rsi_dev->rx_usb_urb[0]) { 52350591c60SAlexey Khoroshilov status = -ENOMEM; 52450591c60SAlexey Khoroshilov goto fail_rx; 52550591c60SAlexey Khoroshilov } 526dad0d04fSFariya Fatima rsi_dev->rx_usb_urb[0]->transfer_buffer = adapter->priv->rx_data_pkt; 527dad0d04fSFariya Fatima rsi_dev->tx_blk_size = 252; 528dad0d04fSFariya Fatima 529dad0d04fSFariya Fatima /* Initializing function callbacks */ 530dad0d04fSFariya Fatima adapter->rx_urb_submit = rsi_rx_urb_submit; 531dad0d04fSFariya Fatima adapter->check_hw_queue_status = rsi_usb_check_queue_status; 532dad0d04fSFariya Fatima adapter->determine_event_timeout = rsi_usb_event_timeout; 533a2ce952cSPrameela Rani Garnepudi adapter->rsi_host_intf = RSI_HOST_INTF_USB; 534a2ce952cSPrameela Rani Garnepudi adapter->host_intf_ops = &usb_host_intf_ops; 535dad0d04fSFariya Fatima 536dad0d04fSFariya Fatima rsi_init_event(&rsi_dev->rx_thread.event); 537dad0d04fSFariya Fatima status = rsi_create_kthread(common, &rsi_dev->rx_thread, 538dad0d04fSFariya Fatima rsi_usb_rx_thread, "RX-Thread"); 539dad0d04fSFariya Fatima if (status) { 540dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Unable to init rx thrd\n", __func__); 54150591c60SAlexey Khoroshilov goto fail_thread; 542dad0d04fSFariya Fatima } 543dad0d04fSFariya Fatima 544dad0d04fSFariya Fatima #ifdef CONFIG_RSI_DEBUGFS 545dad0d04fSFariya Fatima /* In USB, one less than the MAX_DEBUGFS_ENTRIES entries is required */ 546dad0d04fSFariya Fatima adapter->num_debugfs_entries = (MAX_DEBUGFS_ENTRIES - 1); 547dad0d04fSFariya Fatima #endif 548dad0d04fSFariya Fatima 549dad0d04fSFariya Fatima rsi_dbg(INIT_ZONE, "%s: Enabled the interface\n", __func__); 550dad0d04fSFariya Fatima return 0; 551dad0d04fSFariya Fatima 55250591c60SAlexey Khoroshilov fail_thread: 55350591c60SAlexey Khoroshilov usb_free_urb(rsi_dev->rx_usb_urb[0]); 55450591c60SAlexey Khoroshilov fail_rx: 555dad0d04fSFariya Fatima kfree(rsi_dev->tx_buffer); 55650591c60SAlexey Khoroshilov fail_tx: 557dad0d04fSFariya Fatima kfree(common->rx_data_pkt); 558dad0d04fSFariya Fatima return status; 559dad0d04fSFariya Fatima } 560dad0d04fSFariya Fatima 561dad0d04fSFariya Fatima /** 562dad0d04fSFariya Fatima * rsi_probe() - This function is called by kernel when the driver provided 563dad0d04fSFariya Fatima * Vendor and device IDs are matched. All the initialization 564dad0d04fSFariya Fatima * work is done here. 565dad0d04fSFariya Fatima * @pfunction: Pointer to the USB interface structure. 566dad0d04fSFariya Fatima * @id: Pointer to the usb_device_id structure. 567dad0d04fSFariya Fatima * 56850591c60SAlexey Khoroshilov * Return: 0 on success, a negative error code on failure. 569dad0d04fSFariya Fatima */ 570dad0d04fSFariya Fatima static int rsi_probe(struct usb_interface *pfunction, 571dad0d04fSFariya Fatima const struct usb_device_id *id) 572dad0d04fSFariya Fatima { 573dad0d04fSFariya Fatima struct rsi_hw *adapter; 574dad0d04fSFariya Fatima struct rsi_91x_usbdev *dev; 575dad0d04fSFariya Fatima u16 fw_status; 57650591c60SAlexey Khoroshilov int status; 577dad0d04fSFariya Fatima 578dad0d04fSFariya Fatima rsi_dbg(INIT_ZONE, "%s: Init function called\n", __func__); 579dad0d04fSFariya Fatima 580dad0d04fSFariya Fatima adapter = rsi_91x_init(); 581dad0d04fSFariya Fatima if (!adapter) { 582dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Failed to init os intf ops\n", 583dad0d04fSFariya Fatima __func__); 58450591c60SAlexey Khoroshilov return -ENOMEM; 585dad0d04fSFariya Fatima } 586dad0d04fSFariya Fatima 58750591c60SAlexey Khoroshilov status = rsi_init_usb_interface(adapter, pfunction); 58850591c60SAlexey Khoroshilov if (status) { 589dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Failed to init usb interface\n", 590dad0d04fSFariya Fatima __func__); 591dad0d04fSFariya Fatima goto err; 592dad0d04fSFariya Fatima } 593dad0d04fSFariya Fatima 594dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Initialized os intf ops\n", __func__); 595dad0d04fSFariya Fatima 596dad0d04fSFariya Fatima dev = (struct rsi_91x_usbdev *)adapter->rsi_dev; 597dad0d04fSFariya Fatima 59850591c60SAlexey Khoroshilov status = rsi_usb_reg_read(dev->usbdev, FW_STATUS_REG, &fw_status, 2); 59950591c60SAlexey Khoroshilov if (status) 600dad0d04fSFariya Fatima goto err1; 601dad0d04fSFariya Fatima else 602dad0d04fSFariya Fatima fw_status &= 1; 603dad0d04fSFariya Fatima 604dad0d04fSFariya Fatima if (!fw_status) { 60550591c60SAlexey Khoroshilov status = rsi_usb_device_init(adapter->priv); 60650591c60SAlexey Khoroshilov if (status) { 607dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Failed in device init\n", 608dad0d04fSFariya Fatima __func__); 609dad0d04fSFariya Fatima goto err1; 610dad0d04fSFariya Fatima } 611dad0d04fSFariya Fatima 61250591c60SAlexey Khoroshilov status = rsi_usb_reg_write(dev->usbdev, 613dad0d04fSFariya Fatima USB_INTERNAL_REG_1, 61450591c60SAlexey Khoroshilov RSI_USB_READY_MAGIC_NUM, 1); 61550591c60SAlexey Khoroshilov if (status) 616dad0d04fSFariya Fatima goto err1; 617dad0d04fSFariya Fatima rsi_dbg(INIT_ZONE, "%s: Performed device init\n", __func__); 618dad0d04fSFariya Fatima } 619dad0d04fSFariya Fatima 62050591c60SAlexey Khoroshilov status = rsi_rx_urb_submit(adapter); 62150591c60SAlexey Khoroshilov if (status) 622dad0d04fSFariya Fatima goto err1; 623dad0d04fSFariya Fatima 624dad0d04fSFariya Fatima return 0; 625dad0d04fSFariya Fatima err1: 626dad0d04fSFariya Fatima rsi_deinit_usb_interface(adapter); 627dad0d04fSFariya Fatima err: 628dad0d04fSFariya Fatima rsi_91x_deinit(adapter); 629dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Failed in probe...Exiting\n", __func__); 63050591c60SAlexey Khoroshilov return status; 631dad0d04fSFariya Fatima } 632dad0d04fSFariya Fatima 633dad0d04fSFariya Fatima /** 634dad0d04fSFariya Fatima * rsi_disconnect() - This function performs the reverse of the probe function, 6351cce2000SMasahiro Yamada * it deinitialize the driver structure. 636dad0d04fSFariya Fatima * @pfunction: Pointer to the USB interface structure. 637dad0d04fSFariya Fatima * 638dad0d04fSFariya Fatima * Return: None. 639dad0d04fSFariya Fatima */ 640dad0d04fSFariya Fatima static void rsi_disconnect(struct usb_interface *pfunction) 641dad0d04fSFariya Fatima { 642dad0d04fSFariya Fatima struct rsi_hw *adapter = usb_get_intfdata(pfunction); 643dad0d04fSFariya Fatima 644dad0d04fSFariya Fatima if (!adapter) 645dad0d04fSFariya Fatima return; 646dad0d04fSFariya Fatima 647dad0d04fSFariya Fatima rsi_mac80211_detach(adapter); 648dad0d04fSFariya Fatima rsi_deinit_usb_interface(adapter); 649dad0d04fSFariya Fatima rsi_91x_deinit(adapter); 650dad0d04fSFariya Fatima 651dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, "%s: Deinitialization completed\n", __func__); 652dad0d04fSFariya Fatima } 653dad0d04fSFariya Fatima 654dad0d04fSFariya Fatima #ifdef CONFIG_PM 655dad0d04fSFariya Fatima static int rsi_suspend(struct usb_interface *intf, pm_message_t message) 656dad0d04fSFariya Fatima { 657dad0d04fSFariya Fatima /* Not yet implemented */ 658dad0d04fSFariya Fatima return -ENOSYS; 659dad0d04fSFariya Fatima } 660dad0d04fSFariya Fatima 661dad0d04fSFariya Fatima static int rsi_resume(struct usb_interface *intf) 662dad0d04fSFariya Fatima { 663dad0d04fSFariya Fatima /* Not yet implemented */ 664dad0d04fSFariya Fatima return -ENOSYS; 665dad0d04fSFariya Fatima } 666dad0d04fSFariya Fatima #endif 667dad0d04fSFariya Fatima 668dad0d04fSFariya Fatima static const struct usb_device_id rsi_dev_table[] = { 669dad0d04fSFariya Fatima { USB_DEVICE(0x0303, 0x0100) }, 670dad0d04fSFariya Fatima { USB_DEVICE(0x041B, 0x0301) }, 671dad0d04fSFariya Fatima { USB_DEVICE(0x041B, 0x0201) }, 672dad0d04fSFariya Fatima { USB_DEVICE(0x041B, 0x9330) }, 673dad0d04fSFariya Fatima { /* Blank */}, 674dad0d04fSFariya Fatima }; 675dad0d04fSFariya Fatima 676dad0d04fSFariya Fatima static struct usb_driver rsi_driver = { 677dad0d04fSFariya Fatima .name = "RSI-USB WLAN", 678dad0d04fSFariya Fatima .probe = rsi_probe, 679dad0d04fSFariya Fatima .disconnect = rsi_disconnect, 680dad0d04fSFariya Fatima .id_table = rsi_dev_table, 681dad0d04fSFariya Fatima #ifdef CONFIG_PM 682dad0d04fSFariya Fatima .suspend = rsi_suspend, 683dad0d04fSFariya Fatima .resume = rsi_resume, 684dad0d04fSFariya Fatima #endif 685dad0d04fSFariya Fatima }; 686dad0d04fSFariya Fatima 687b101426aSAlexey Khoroshilov module_usb_driver(rsi_driver); 688dad0d04fSFariya Fatima 689dad0d04fSFariya Fatima MODULE_AUTHOR("Redpine Signals Inc"); 690dad0d04fSFariya Fatima MODULE_DESCRIPTION("Common USB layer for RSI drivers"); 691dad0d04fSFariya Fatima MODULE_SUPPORTED_DEVICE("RSI-91x"); 692dad0d04fSFariya Fatima MODULE_DEVICE_TABLE(usb, rsi_dev_table); 693dad0d04fSFariya Fatima MODULE_FIRMWARE(FIRMWARE_RSI9113); 694dad0d04fSFariya Fatima MODULE_VERSION("0.1"); 695dad0d04fSFariya Fatima MODULE_LICENSE("Dual BSD/GPL"); 696