1241b128bSKalle Valo /* 2241b128bSKalle Valo * Copyright (c) 2007-2011 Atheros Communications Inc. 31b2df407SVasanthakumar Thiagarajan * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4241b128bSKalle Valo * 5241b128bSKalle Valo * Permission to use, copy, modify, and/or distribute this software for any 6241b128bSKalle Valo * purpose with or without fee is hereby granted, provided that the above 7241b128bSKalle Valo * copyright notice and this permission notice appear in all copies. 8241b128bSKalle Valo * 9241b128bSKalle Valo * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10241b128bSKalle Valo * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11241b128bSKalle Valo * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12241b128bSKalle Valo * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13241b128bSKalle Valo * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14241b128bSKalle Valo * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15241b128bSKalle Valo * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16241b128bSKalle Valo */ 17241b128bSKalle Valo 18241b128bSKalle Valo #include <linux/module.h> 19241b128bSKalle Valo #include <linux/usb.h> 20241b128bSKalle Valo 21241b128bSKalle Valo #include "debug.h" 22241b128bSKalle Valo #include "core.h" 23241b128bSKalle Valo 249cbee358SKalle Valo /* constants */ 259cbee358SKalle Valo #define TX_URB_COUNT 32 269cbee358SKalle Valo #define RX_URB_COUNT 32 279cbee358SKalle Valo #define ATH6KL_USB_RX_BUFFER_SIZE 1700 289cbee358SKalle Valo 299cbee358SKalle Valo /* tx/rx pipes for usb */ 309cbee358SKalle Valo enum ATH6KL_USB_PIPE_ID { 319cbee358SKalle Valo ATH6KL_USB_PIPE_TX_CTRL = 0, 329cbee358SKalle Valo ATH6KL_USB_PIPE_TX_DATA_LP, 339cbee358SKalle Valo ATH6KL_USB_PIPE_TX_DATA_MP, 349cbee358SKalle Valo ATH6KL_USB_PIPE_TX_DATA_HP, 359cbee358SKalle Valo ATH6KL_USB_PIPE_RX_CTRL, 369cbee358SKalle Valo ATH6KL_USB_PIPE_RX_DATA, 379cbee358SKalle Valo ATH6KL_USB_PIPE_RX_DATA2, 389cbee358SKalle Valo ATH6KL_USB_PIPE_RX_INT, 399cbee358SKalle Valo ATH6KL_USB_PIPE_MAX 409cbee358SKalle Valo }; 419cbee358SKalle Valo 429cbee358SKalle Valo #define ATH6KL_USB_PIPE_INVALID ATH6KL_USB_PIPE_MAX 439cbee358SKalle Valo 449cbee358SKalle Valo struct ath6kl_usb_pipe { 459cbee358SKalle Valo struct list_head urb_list_head; 469cbee358SKalle Valo struct usb_anchor urb_submitted; 479cbee358SKalle Valo u32 urb_alloc; 489cbee358SKalle Valo u32 urb_cnt; 499cbee358SKalle Valo u32 urb_cnt_thresh; 509cbee358SKalle Valo unsigned int usb_pipe_handle; 519cbee358SKalle Valo u32 flags; 529cbee358SKalle Valo u8 ep_address; 539cbee358SKalle Valo u8 logical_pipe_num; 549cbee358SKalle Valo struct ath6kl_usb *ar_usb; 559cbee358SKalle Valo u16 max_packet_size; 569cbee358SKalle Valo struct work_struct io_complete_work; 579cbee358SKalle Valo struct sk_buff_head io_comp_queue; 589cbee358SKalle Valo struct usb_endpoint_descriptor *ep_desc; 599cbee358SKalle Valo }; 609cbee358SKalle Valo 619cbee358SKalle Valo #define ATH6KL_USB_PIPE_FLAG_TX (1 << 0) 629cbee358SKalle Valo 63241b128bSKalle Valo /* usb device object */ 64241b128bSKalle Valo struct ath6kl_usb { 659cbee358SKalle Valo /* protects pipe->urb_list_head and pipe->urb_cnt */ 669cbee358SKalle Valo spinlock_t cs_lock; 679cbee358SKalle Valo 68241b128bSKalle Valo struct usb_device *udev; 69241b128bSKalle Valo struct usb_interface *interface; 709cbee358SKalle Valo struct ath6kl_usb_pipe pipes[ATH6KL_USB_PIPE_MAX]; 71241b128bSKalle Valo u8 *diag_cmd_buffer; 72241b128bSKalle Valo u8 *diag_resp_buffer; 73241b128bSKalle Valo struct ath6kl *ar; 74241b128bSKalle Valo }; 75241b128bSKalle Valo 769cbee358SKalle Valo /* usb urb object */ 779cbee358SKalle Valo struct ath6kl_urb_context { 789cbee358SKalle Valo struct list_head link; 799cbee358SKalle Valo struct ath6kl_usb_pipe *pipe; 809cbee358SKalle Valo struct sk_buff *skb; 819cbee358SKalle Valo struct ath6kl *ar; 829cbee358SKalle Valo }; 839cbee358SKalle Valo 849cbee358SKalle Valo /* USB endpoint definitions */ 859cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_CTRL_IN 0x81 869cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_DATA_IN 0x82 879cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_DATA2_IN 0x83 889cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_INT_IN 0x84 899cbee358SKalle Valo 909cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_CTRL_OUT 0x01 919cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_DATA_LP_OUT 0x02 929cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_DATA_MP_OUT 0x03 939cbee358SKalle Valo #define ATH6KL_USB_EP_ADDR_APP_DATA_HP_OUT 0x04 949cbee358SKalle Valo 95241b128bSKalle Valo /* diagnostic command defnitions */ 96241b128bSKalle Valo #define ATH6KL_USB_CONTROL_REQ_SEND_BMI_CMD 1 97241b128bSKalle Valo #define ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP 2 98241b128bSKalle Valo #define ATH6KL_USB_CONTROL_REQ_DIAG_CMD 3 99241b128bSKalle Valo #define ATH6KL_USB_CONTROL_REQ_DIAG_RESP 4 100241b128bSKalle Valo 101241b128bSKalle Valo #define ATH6KL_USB_CTRL_DIAG_CC_READ 0 102241b128bSKalle Valo #define ATH6KL_USB_CTRL_DIAG_CC_WRITE 1 103241b128bSKalle Valo 104241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_cmd_write { 105241b128bSKalle Valo __le32 cmd; 106241b128bSKalle Valo __le32 address; 107241b128bSKalle Valo __le32 value; 108241b128bSKalle Valo __le32 _pad[1]; 109241b128bSKalle Valo } __packed; 110241b128bSKalle Valo 111241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_cmd_read { 112241b128bSKalle Valo __le32 cmd; 113241b128bSKalle Valo __le32 address; 114241b128bSKalle Valo } __packed; 115241b128bSKalle Valo 116241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_resp_read { 117241b128bSKalle Valo __le32 value; 118241b128bSKalle Valo } __packed; 119241b128bSKalle Valo 1209cbee358SKalle Valo /* function declarations */ 1219cbee358SKalle Valo static void ath6kl_usb_recv_complete(struct urb *urb); 1229cbee358SKalle Valo 1239cbee358SKalle Valo #define ATH6KL_USB_IS_BULK_EP(attr) (((attr) & 3) == 0x02) 1249cbee358SKalle Valo #define ATH6KL_USB_IS_INT_EP(attr) (((attr) & 3) == 0x03) 1259cbee358SKalle Valo #define ATH6KL_USB_IS_ISOC_EP(attr) (((attr) & 3) == 0x01) 1269cbee358SKalle Valo #define ATH6KL_USB_IS_DIR_IN(addr) ((addr) & 0x80) 1279cbee358SKalle Valo 1289cbee358SKalle Valo /* pipe/urb operations */ 1299cbee358SKalle Valo static struct ath6kl_urb_context * 1309cbee358SKalle Valo ath6kl_usb_alloc_urb_from_pipe(struct ath6kl_usb_pipe *pipe) 1319cbee358SKalle Valo { 1329cbee358SKalle Valo struct ath6kl_urb_context *urb_context = NULL; 1339cbee358SKalle Valo unsigned long flags; 1349cbee358SKalle Valo 1359cbee358SKalle Valo spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags); 1369cbee358SKalle Valo if (!list_empty(&pipe->urb_list_head)) { 1379cbee358SKalle Valo urb_context = 1389cbee358SKalle Valo list_first_entry(&pipe->urb_list_head, 1399cbee358SKalle Valo struct ath6kl_urb_context, link); 1409cbee358SKalle Valo list_del(&urb_context->link); 1419cbee358SKalle Valo pipe->urb_cnt--; 1429cbee358SKalle Valo } 1439cbee358SKalle Valo spin_unlock_irqrestore(&pipe->ar_usb->cs_lock, flags); 1449cbee358SKalle Valo 1459cbee358SKalle Valo return urb_context; 1469cbee358SKalle Valo } 1479cbee358SKalle Valo 1489cbee358SKalle Valo static void ath6kl_usb_free_urb_to_pipe(struct ath6kl_usb_pipe *pipe, 1499cbee358SKalle Valo struct ath6kl_urb_context *urb_context) 1509cbee358SKalle Valo { 1519cbee358SKalle Valo unsigned long flags; 1529cbee358SKalle Valo 1539cbee358SKalle Valo spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags); 1549cbee358SKalle Valo pipe->urb_cnt++; 1559cbee358SKalle Valo 1569cbee358SKalle Valo list_add(&urb_context->link, &pipe->urb_list_head); 1579cbee358SKalle Valo spin_unlock_irqrestore(&pipe->ar_usb->cs_lock, flags); 1589cbee358SKalle Valo } 1599cbee358SKalle Valo 1609cbee358SKalle Valo static void ath6kl_usb_cleanup_recv_urb(struct ath6kl_urb_context *urb_context) 1619cbee358SKalle Valo { 1629cbee358SKalle Valo if (urb_context->skb != NULL) { 1639cbee358SKalle Valo dev_kfree_skb(urb_context->skb); 1649cbee358SKalle Valo urb_context->skb = NULL; 1659cbee358SKalle Valo } 1669cbee358SKalle Valo 1679cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, urb_context); 1689cbee358SKalle Valo } 1699cbee358SKalle Valo 1709cbee358SKalle Valo static inline struct ath6kl_usb *ath6kl_usb_priv(struct ath6kl *ar) 1719cbee358SKalle Valo { 1729cbee358SKalle Valo return ar->hif_priv; 1739cbee358SKalle Valo } 1749cbee358SKalle Valo 1759cbee358SKalle Valo /* pipe resource allocation/cleanup */ 1769cbee358SKalle Valo static int ath6kl_usb_alloc_pipe_resources(struct ath6kl_usb_pipe *pipe, 1779cbee358SKalle Valo int urb_cnt) 1789cbee358SKalle Valo { 1799cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 1809cbee358SKalle Valo int status = 0, i; 1819cbee358SKalle Valo 1829cbee358SKalle Valo INIT_LIST_HEAD(&pipe->urb_list_head); 1839cbee358SKalle Valo init_usb_anchor(&pipe->urb_submitted); 1849cbee358SKalle Valo 1859cbee358SKalle Valo for (i = 0; i < urb_cnt; i++) { 1869cbee358SKalle Valo urb_context = kzalloc(sizeof(struct ath6kl_urb_context), 1879cbee358SKalle Valo GFP_KERNEL); 1885dbdf6feSMohammed Shafi Shajakhan if (urb_context == NULL) { 1895dbdf6feSMohammed Shafi Shajakhan status = -ENOMEM; 1905dbdf6feSMohammed Shafi Shajakhan goto fail_alloc_pipe_resources; 1915dbdf6feSMohammed Shafi Shajakhan } 1929cbee358SKalle Valo 1939cbee358SKalle Valo urb_context->pipe = pipe; 1949cbee358SKalle Valo 1959cbee358SKalle Valo /* 1969cbee358SKalle Valo * we are only allocate the urb contexts here, the actual URB 1979cbee358SKalle Valo * is allocated from the kernel as needed to do a transaction 1989cbee358SKalle Valo */ 1999cbee358SKalle Valo pipe->urb_alloc++; 2009cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(pipe, urb_context); 2019cbee358SKalle Valo } 2029cbee358SKalle Valo 2039cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 2049cbee358SKalle Valo "ath6kl usb: alloc resources lpipe:%d hpipe:0x%X urbs:%d\n", 2059cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 2069cbee358SKalle Valo pipe->urb_alloc); 2079cbee358SKalle Valo 2085dbdf6feSMohammed Shafi Shajakhan fail_alloc_pipe_resources: 2099cbee358SKalle Valo return status; 2109cbee358SKalle Valo } 2119cbee358SKalle Valo 2129cbee358SKalle Valo static void ath6kl_usb_free_pipe_resources(struct ath6kl_usb_pipe *pipe) 2139cbee358SKalle Valo { 2149cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 2159cbee358SKalle Valo 2169cbee358SKalle Valo if (pipe->ar_usb == NULL) { 2179cbee358SKalle Valo /* nothing allocated for this pipe */ 2189cbee358SKalle Valo return; 2199cbee358SKalle Valo } 2209cbee358SKalle Valo 2219cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 2229cbee358SKalle Valo "ath6kl usb: free resources lpipe:%d" 2239cbee358SKalle Valo "hpipe:0x%X urbs:%d avail:%d\n", 2249cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 2259cbee358SKalle Valo pipe->urb_alloc, pipe->urb_cnt); 2269cbee358SKalle Valo 2279cbee358SKalle Valo if (pipe->urb_alloc != pipe->urb_cnt) { 2289cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 2299cbee358SKalle Valo "ath6kl usb: urb leak! lpipe:%d" 2309cbee358SKalle Valo "hpipe:0x%X urbs:%d avail:%d\n", 2319cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 2329cbee358SKalle Valo pipe->urb_alloc, pipe->urb_cnt); 2339cbee358SKalle Valo } 2349cbee358SKalle Valo 2359cbee358SKalle Valo while (true) { 2369cbee358SKalle Valo urb_context = ath6kl_usb_alloc_urb_from_pipe(pipe); 2379cbee358SKalle Valo if (urb_context == NULL) 2389cbee358SKalle Valo break; 2399cbee358SKalle Valo kfree(urb_context); 2409cbee358SKalle Valo } 2419cbee358SKalle Valo 2429cbee358SKalle Valo } 2439cbee358SKalle Valo 2449cbee358SKalle Valo static void ath6kl_usb_cleanup_pipe_resources(struct ath6kl_usb *ar_usb) 2459cbee358SKalle Valo { 2469cbee358SKalle Valo int i; 2479cbee358SKalle Valo 2489cbee358SKalle Valo for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) 2499cbee358SKalle Valo ath6kl_usb_free_pipe_resources(&ar_usb->pipes[i]); 2509cbee358SKalle Valo 2519cbee358SKalle Valo } 2529cbee358SKalle Valo 2539cbee358SKalle Valo static u8 ath6kl_usb_get_logical_pipe_num(struct ath6kl_usb *ar_usb, 2549cbee358SKalle Valo u8 ep_address, int *urb_count) 2559cbee358SKalle Valo { 2569cbee358SKalle Valo u8 pipe_num = ATH6KL_USB_PIPE_INVALID; 2579cbee358SKalle Valo 2589cbee358SKalle Valo switch (ep_address) { 2599cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_CTRL_IN: 2609cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_CTRL; 2619cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2629cbee358SKalle Valo break; 2639cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_IN: 2649cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_DATA; 2659cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2669cbee358SKalle Valo break; 2679cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_INT_IN: 2689cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_INT; 2699cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2709cbee358SKalle Valo break; 2719cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA2_IN: 2729cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_DATA2; 2739cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2749cbee358SKalle Valo break; 2759cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_CTRL_OUT: 2769cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_CTRL; 2779cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2789cbee358SKalle Valo break; 2799cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_LP_OUT: 2809cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_DATA_LP; 2819cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2829cbee358SKalle Valo break; 2839cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_MP_OUT: 2849cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_DATA_MP; 2859cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2869cbee358SKalle Valo break; 2879cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_HP_OUT: 2889cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_DATA_HP; 2899cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2909cbee358SKalle Valo break; 2919cbee358SKalle Valo default: 2929cbee358SKalle Valo /* note: there may be endpoints not currently used */ 2939cbee358SKalle Valo break; 2949cbee358SKalle Valo } 2959cbee358SKalle Valo 2969cbee358SKalle Valo return pipe_num; 2979cbee358SKalle Valo } 2989cbee358SKalle Valo 2999cbee358SKalle Valo static int ath6kl_usb_setup_pipe_resources(struct ath6kl_usb *ar_usb) 3009cbee358SKalle Valo { 3019cbee358SKalle Valo struct usb_interface *interface = ar_usb->interface; 3029cbee358SKalle Valo struct usb_host_interface *iface_desc = interface->cur_altsetting; 3039cbee358SKalle Valo struct usb_endpoint_descriptor *endpoint; 3049cbee358SKalle Valo struct ath6kl_usb_pipe *pipe; 3059cbee358SKalle Valo int i, urbcount, status = 0; 3069cbee358SKalle Valo u8 pipe_num; 3079cbee358SKalle Valo 3089cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "setting up USB Pipes using interface\n"); 3099cbee358SKalle Valo 3109cbee358SKalle Valo /* walk decriptors and setup pipes */ 3119cbee358SKalle Valo for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 3129cbee358SKalle Valo endpoint = &iface_desc->endpoint[i].desc; 3139cbee358SKalle Valo 3149cbee358SKalle Valo if (ATH6KL_USB_IS_BULK_EP(endpoint->bmAttributes)) { 3159cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 3169cbee358SKalle Valo "%s Bulk Ep:0x%2.2X maxpktsz:%d\n", 3179cbee358SKalle Valo ATH6KL_USB_IS_DIR_IN 3189cbee358SKalle Valo (endpoint->bEndpointAddress) ? 3199cbee358SKalle Valo "RX" : "TX", endpoint->bEndpointAddress, 3209cbee358SKalle Valo le16_to_cpu(endpoint->wMaxPacketSize)); 3219cbee358SKalle Valo } else if (ATH6KL_USB_IS_INT_EP(endpoint->bmAttributes)) { 3229cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 3239cbee358SKalle Valo "%s Int Ep:0x%2.2X maxpktsz:%d interval:%d\n", 3249cbee358SKalle Valo ATH6KL_USB_IS_DIR_IN 3259cbee358SKalle Valo (endpoint->bEndpointAddress) ? 3269cbee358SKalle Valo "RX" : "TX", endpoint->bEndpointAddress, 3279cbee358SKalle Valo le16_to_cpu(endpoint->wMaxPacketSize), 3289cbee358SKalle Valo endpoint->bInterval); 3299cbee358SKalle Valo } else if (ATH6KL_USB_IS_ISOC_EP(endpoint->bmAttributes)) { 3309cbee358SKalle Valo /* TODO for ISO */ 3319cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 3329cbee358SKalle Valo "%s ISOC Ep:0x%2.2X maxpktsz:%d interval:%d\n", 3339cbee358SKalle Valo ATH6KL_USB_IS_DIR_IN 3349cbee358SKalle Valo (endpoint->bEndpointAddress) ? 3359cbee358SKalle Valo "RX" : "TX", endpoint->bEndpointAddress, 3369cbee358SKalle Valo le16_to_cpu(endpoint->wMaxPacketSize), 3379cbee358SKalle Valo endpoint->bInterval); 3389cbee358SKalle Valo } 3399cbee358SKalle Valo urbcount = 0; 3409cbee358SKalle Valo 3419cbee358SKalle Valo pipe_num = 3429cbee358SKalle Valo ath6kl_usb_get_logical_pipe_num(ar_usb, 3439cbee358SKalle Valo endpoint->bEndpointAddress, 3449cbee358SKalle Valo &urbcount); 3459cbee358SKalle Valo if (pipe_num == ATH6KL_USB_PIPE_INVALID) 3469cbee358SKalle Valo continue; 3479cbee358SKalle Valo 3489cbee358SKalle Valo pipe = &ar_usb->pipes[pipe_num]; 3499cbee358SKalle Valo if (pipe->ar_usb != NULL) { 3509cbee358SKalle Valo /* hmmm..pipe was already setup */ 3519cbee358SKalle Valo continue; 3529cbee358SKalle Valo } 3539cbee358SKalle Valo 3549cbee358SKalle Valo pipe->ar_usb = ar_usb; 3559cbee358SKalle Valo pipe->logical_pipe_num = pipe_num; 3569cbee358SKalle Valo pipe->ep_address = endpoint->bEndpointAddress; 3579cbee358SKalle Valo pipe->max_packet_size = le16_to_cpu(endpoint->wMaxPacketSize); 3589cbee358SKalle Valo 3599cbee358SKalle Valo if (ATH6KL_USB_IS_BULK_EP(endpoint->bmAttributes)) { 3609cbee358SKalle Valo if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) { 3619cbee358SKalle Valo pipe->usb_pipe_handle = 3629cbee358SKalle Valo usb_rcvbulkpipe(ar_usb->udev, 3639cbee358SKalle Valo pipe->ep_address); 3649cbee358SKalle Valo } else { 3659cbee358SKalle Valo pipe->usb_pipe_handle = 3669cbee358SKalle Valo usb_sndbulkpipe(ar_usb->udev, 3679cbee358SKalle Valo pipe->ep_address); 3689cbee358SKalle Valo } 3699cbee358SKalle Valo } else if (ATH6KL_USB_IS_INT_EP(endpoint->bmAttributes)) { 3709cbee358SKalle Valo if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) { 3719cbee358SKalle Valo pipe->usb_pipe_handle = 3729cbee358SKalle Valo usb_rcvintpipe(ar_usb->udev, 3739cbee358SKalle Valo pipe->ep_address); 3749cbee358SKalle Valo } else { 3759cbee358SKalle Valo pipe->usb_pipe_handle = 3769cbee358SKalle Valo usb_sndintpipe(ar_usb->udev, 3779cbee358SKalle Valo pipe->ep_address); 3789cbee358SKalle Valo } 3799cbee358SKalle Valo } else if (ATH6KL_USB_IS_ISOC_EP(endpoint->bmAttributes)) { 3809cbee358SKalle Valo /* TODO for ISO */ 3819cbee358SKalle Valo if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) { 3829cbee358SKalle Valo pipe->usb_pipe_handle = 3839cbee358SKalle Valo usb_rcvisocpipe(ar_usb->udev, 3849cbee358SKalle Valo pipe->ep_address); 3859cbee358SKalle Valo } else { 3869cbee358SKalle Valo pipe->usb_pipe_handle = 3879cbee358SKalle Valo usb_sndisocpipe(ar_usb->udev, 3889cbee358SKalle Valo pipe->ep_address); 3899cbee358SKalle Valo } 3909cbee358SKalle Valo } 3919cbee358SKalle Valo 3929cbee358SKalle Valo pipe->ep_desc = endpoint; 3939cbee358SKalle Valo 3949cbee358SKalle Valo if (!ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) 3959cbee358SKalle Valo pipe->flags |= ATH6KL_USB_PIPE_FLAG_TX; 3969cbee358SKalle Valo 3979cbee358SKalle Valo status = ath6kl_usb_alloc_pipe_resources(pipe, urbcount); 3989cbee358SKalle Valo if (status != 0) 3999cbee358SKalle Valo break; 4009cbee358SKalle Valo } 4019cbee358SKalle Valo 4029cbee358SKalle Valo return status; 4039cbee358SKalle Valo } 4049cbee358SKalle Valo 4059cbee358SKalle Valo /* pipe operations */ 4069cbee358SKalle Valo static void ath6kl_usb_post_recv_transfers(struct ath6kl_usb_pipe *recv_pipe, 4079cbee358SKalle Valo int buffer_length) 4089cbee358SKalle Valo { 4099cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 4109cbee358SKalle Valo struct urb *urb; 4119cbee358SKalle Valo int usb_status; 4129cbee358SKalle Valo 4139cbee358SKalle Valo while (true) { 4149cbee358SKalle Valo urb_context = ath6kl_usb_alloc_urb_from_pipe(recv_pipe); 4159cbee358SKalle Valo if (urb_context == NULL) 4169cbee358SKalle Valo break; 4179cbee358SKalle Valo 4189cbee358SKalle Valo urb_context->skb = dev_alloc_skb(buffer_length); 4199cbee358SKalle Valo if (urb_context->skb == NULL) 4209cbee358SKalle Valo goto err_cleanup_urb; 4219cbee358SKalle Valo 4229cbee358SKalle Valo urb = usb_alloc_urb(0, GFP_ATOMIC); 4239cbee358SKalle Valo if (urb == NULL) 4249cbee358SKalle Valo goto err_cleanup_urb; 4259cbee358SKalle Valo 4269cbee358SKalle Valo usb_fill_bulk_urb(urb, 4279cbee358SKalle Valo recv_pipe->ar_usb->udev, 4289cbee358SKalle Valo recv_pipe->usb_pipe_handle, 4299cbee358SKalle Valo urb_context->skb->data, 4309cbee358SKalle Valo buffer_length, 4319cbee358SKalle Valo ath6kl_usb_recv_complete, urb_context); 4329cbee358SKalle Valo 4339cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 4349cbee358SKalle Valo "ath6kl usb: bulk recv submit:%d, 0x%X (ep:0x%2.2X), %d bytes buf:0x%p\n", 4359cbee358SKalle Valo recv_pipe->logical_pipe_num, 4369cbee358SKalle Valo recv_pipe->usb_pipe_handle, recv_pipe->ep_address, 4379cbee358SKalle Valo buffer_length, urb_context->skb); 4389cbee358SKalle Valo 4399cbee358SKalle Valo usb_anchor_urb(urb, &recv_pipe->urb_submitted); 4409cbee358SKalle Valo usb_status = usb_submit_urb(urb, GFP_ATOMIC); 4419cbee358SKalle Valo 4429cbee358SKalle Valo if (usb_status) { 4439cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 4449cbee358SKalle Valo "ath6kl usb : usb bulk recv failed %d\n", 4459cbee358SKalle Valo usb_status); 4469cbee358SKalle Valo usb_unanchor_urb(urb); 4479cbee358SKalle Valo usb_free_urb(urb); 4489cbee358SKalle Valo goto err_cleanup_urb; 4499cbee358SKalle Valo } 4509cbee358SKalle Valo usb_free_urb(urb); 4519cbee358SKalle Valo } 4529cbee358SKalle Valo return; 4539cbee358SKalle Valo 4549cbee358SKalle Valo err_cleanup_urb: 4559cbee358SKalle Valo ath6kl_usb_cleanup_recv_urb(urb_context); 4569cbee358SKalle Valo return; 4579cbee358SKalle Valo } 4589cbee358SKalle Valo 4599cbee358SKalle Valo static void ath6kl_usb_flush_all(struct ath6kl_usb *ar_usb) 4609cbee358SKalle Valo { 4619cbee358SKalle Valo int i; 4629cbee358SKalle Valo 4639cbee358SKalle Valo for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) { 4649cbee358SKalle Valo if (ar_usb->pipes[i].ar_usb != NULL) 4659cbee358SKalle Valo usb_kill_anchored_urbs(&ar_usb->pipes[i].urb_submitted); 4669cbee358SKalle Valo } 4679cbee358SKalle Valo 4689cbee358SKalle Valo /* 4699cbee358SKalle Valo * Flushing any pending I/O may schedule work this call will block 4709cbee358SKalle Valo * until all scheduled work runs to completion. 4719cbee358SKalle Valo */ 4729cbee358SKalle Valo flush_scheduled_work(); 4739cbee358SKalle Valo } 4749cbee358SKalle Valo 4759cbee358SKalle Valo static void ath6kl_usb_start_recv_pipes(struct ath6kl_usb *ar_usb) 4769cbee358SKalle Valo { 4779cbee358SKalle Valo /* 4789cbee358SKalle Valo * note: control pipe is no longer used 4799cbee358SKalle Valo * ar_usb->pipes[ATH6KL_USB_PIPE_RX_CTRL].urb_cnt_thresh = 4809cbee358SKalle Valo * ar_usb->pipes[ATH6KL_USB_PIPE_RX_CTRL].urb_alloc/2; 4819cbee358SKalle Valo * ath6kl_usb_post_recv_transfers(&ar_usb-> 4829cbee358SKalle Valo * pipes[ATH6KL_USB_PIPE_RX_CTRL], 4839cbee358SKalle Valo * ATH6KL_USB_RX_BUFFER_SIZE); 4849cbee358SKalle Valo */ 4859cbee358SKalle Valo 4869cbee358SKalle Valo ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA].urb_cnt_thresh = 4879cbee358SKalle Valo ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA].urb_alloc / 2; 4889cbee358SKalle Valo ath6kl_usb_post_recv_transfers(&ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA], 4899cbee358SKalle Valo ATH6KL_USB_RX_BUFFER_SIZE); 4909cbee358SKalle Valo } 4919cbee358SKalle Valo 4929cbee358SKalle Valo /* hif usb rx/tx completion functions */ 4939cbee358SKalle Valo static void ath6kl_usb_recv_complete(struct urb *urb) 4949cbee358SKalle Valo { 4959cbee358SKalle Valo struct ath6kl_urb_context *urb_context = urb->context; 4969cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = urb_context->pipe; 4979cbee358SKalle Valo struct sk_buff *skb = NULL; 4989cbee358SKalle Valo int status = 0; 4999cbee358SKalle Valo 5009cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5019cbee358SKalle Valo "%s: recv pipe: %d, stat:%d, len:%d urb:0x%p\n", __func__, 5029cbee358SKalle Valo pipe->logical_pipe_num, urb->status, urb->actual_length, 5039cbee358SKalle Valo urb); 5049cbee358SKalle Valo 5059cbee358SKalle Valo if (urb->status != 0) { 5069cbee358SKalle Valo status = -EIO; 5079cbee358SKalle Valo switch (urb->status) { 5089cbee358SKalle Valo case -ECONNRESET: 5099cbee358SKalle Valo case -ENOENT: 5109cbee358SKalle Valo case -ESHUTDOWN: 5119cbee358SKalle Valo /* 5129cbee358SKalle Valo * no need to spew these errors when device 5139cbee358SKalle Valo * removed or urb killed due to driver shutdown 5149cbee358SKalle Valo */ 5159cbee358SKalle Valo status = -ECANCELED; 5169cbee358SKalle Valo break; 5179cbee358SKalle Valo default: 5189cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5199cbee358SKalle Valo "%s recv pipe: %d (ep:0x%2.2X), failed:%d\n", 5209cbee358SKalle Valo __func__, pipe->logical_pipe_num, 5219cbee358SKalle Valo pipe->ep_address, urb->status); 5229cbee358SKalle Valo break; 5239cbee358SKalle Valo } 5249cbee358SKalle Valo goto cleanup_recv_urb; 5259cbee358SKalle Valo } 5269cbee358SKalle Valo 5279cbee358SKalle Valo if (urb->actual_length == 0) 5289cbee358SKalle Valo goto cleanup_recv_urb; 5299cbee358SKalle Valo 5309cbee358SKalle Valo skb = urb_context->skb; 5319cbee358SKalle Valo 5329cbee358SKalle Valo /* we are going to pass it up */ 5339cbee358SKalle Valo urb_context->skb = NULL; 5349cbee358SKalle Valo skb_put(skb, urb->actual_length); 5359cbee358SKalle Valo 5369cbee358SKalle Valo /* note: queue implements a lock */ 5379cbee358SKalle Valo skb_queue_tail(&pipe->io_comp_queue, skb); 5389cbee358SKalle Valo schedule_work(&pipe->io_complete_work); 5399cbee358SKalle Valo 5409cbee358SKalle Valo cleanup_recv_urb: 5419cbee358SKalle Valo ath6kl_usb_cleanup_recv_urb(urb_context); 5429cbee358SKalle Valo 5439cbee358SKalle Valo if (status == 0 && 5449cbee358SKalle Valo pipe->urb_cnt >= pipe->urb_cnt_thresh) { 5459cbee358SKalle Valo /* our free urbs are piling up, post more transfers */ 5469cbee358SKalle Valo ath6kl_usb_post_recv_transfers(pipe, ATH6KL_USB_RX_BUFFER_SIZE); 5479cbee358SKalle Valo } 5489cbee358SKalle Valo } 5499cbee358SKalle Valo 5509cbee358SKalle Valo static void ath6kl_usb_usb_transmit_complete(struct urb *urb) 5519cbee358SKalle Valo { 5529cbee358SKalle Valo struct ath6kl_urb_context *urb_context = urb->context; 5539cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = urb_context->pipe; 5549cbee358SKalle Valo struct sk_buff *skb; 5559cbee358SKalle Valo 5569cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5579cbee358SKalle Valo "%s: pipe: %d, stat:%d, len:%d\n", 5589cbee358SKalle Valo __func__, pipe->logical_pipe_num, urb->status, 5599cbee358SKalle Valo urb->actual_length); 5609cbee358SKalle Valo 5619cbee358SKalle Valo if (urb->status != 0) { 5629cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5639cbee358SKalle Valo "%s: pipe: %d, failed:%d\n", 5649cbee358SKalle Valo __func__, pipe->logical_pipe_num, urb->status); 5659cbee358SKalle Valo } 5669cbee358SKalle Valo 5679cbee358SKalle Valo skb = urb_context->skb; 5689cbee358SKalle Valo urb_context->skb = NULL; 5699cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, urb_context); 5709cbee358SKalle Valo 5719cbee358SKalle Valo /* note: queue implements a lock */ 5729cbee358SKalle Valo skb_queue_tail(&pipe->io_comp_queue, skb); 5739cbee358SKalle Valo schedule_work(&pipe->io_complete_work); 5749cbee358SKalle Valo } 5759cbee358SKalle Valo 5769cbee358SKalle Valo static void ath6kl_usb_io_comp_work(struct work_struct *work) 5779cbee358SKalle Valo { 5789cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = container_of(work, 5799cbee358SKalle Valo struct ath6kl_usb_pipe, 5809cbee358SKalle Valo io_complete_work); 5819cbee358SKalle Valo struct ath6kl_usb *ar_usb; 5829cbee358SKalle Valo struct sk_buff *skb; 5839cbee358SKalle Valo 5849cbee358SKalle Valo ar_usb = pipe->ar_usb; 5859cbee358SKalle Valo 5869cbee358SKalle Valo while ((skb = skb_dequeue(&pipe->io_comp_queue))) { 5879cbee358SKalle Valo if (pipe->flags & ATH6KL_USB_PIPE_FLAG_TX) { 5889cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5899cbee358SKalle Valo "ath6kl usb xmit callback buf:0x%p\n", skb); 5909cbee358SKalle Valo ath6kl_core_tx_complete(ar_usb->ar, skb); 5919cbee358SKalle Valo } else { 5929cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5939cbee358SKalle Valo "ath6kl usb recv callback buf:0x%p\n", skb); 5949cbee358SKalle Valo ath6kl_core_rx_complete(ar_usb->ar, skb, 5959cbee358SKalle Valo pipe->logical_pipe_num); 5969cbee358SKalle Valo } 5979cbee358SKalle Valo } 5989cbee358SKalle Valo } 5999cbee358SKalle Valo 600241b128bSKalle Valo #define ATH6KL_USB_MAX_DIAG_CMD (sizeof(struct ath6kl_usb_ctrl_diag_cmd_write)) 601241b128bSKalle Valo #define ATH6KL_USB_MAX_DIAG_RESP (sizeof(struct ath6kl_usb_ctrl_diag_resp_read)) 602241b128bSKalle Valo 603241b128bSKalle Valo static void ath6kl_usb_destroy(struct ath6kl_usb *ar_usb) 604241b128bSKalle Valo { 6059cbee358SKalle Valo ath6kl_usb_flush_all(ar_usb); 6069cbee358SKalle Valo 6079cbee358SKalle Valo ath6kl_usb_cleanup_pipe_resources(ar_usb); 6089cbee358SKalle Valo 609241b128bSKalle Valo usb_set_intfdata(ar_usb->interface, NULL); 610241b128bSKalle Valo 611241b128bSKalle Valo kfree(ar_usb->diag_cmd_buffer); 612241b128bSKalle Valo kfree(ar_usb->diag_resp_buffer); 613241b128bSKalle Valo 614241b128bSKalle Valo kfree(ar_usb); 615241b128bSKalle Valo } 616241b128bSKalle Valo 617241b128bSKalle Valo static struct ath6kl_usb *ath6kl_usb_create(struct usb_interface *interface) 618241b128bSKalle Valo { 619241b128bSKalle Valo struct usb_device *dev = interface_to_usbdev(interface); 6209cbee358SKalle Valo struct ath6kl_usb *ar_usb; 6219cbee358SKalle Valo struct ath6kl_usb_pipe *pipe; 622241b128bSKalle Valo int status = 0; 6239cbee358SKalle Valo int i; 624241b128bSKalle Valo 625241b128bSKalle Valo ar_usb = kzalloc(sizeof(struct ath6kl_usb), GFP_KERNEL); 626241b128bSKalle Valo if (ar_usb == NULL) 627241b128bSKalle Valo goto fail_ath6kl_usb_create; 628241b128bSKalle Valo 629241b128bSKalle Valo usb_set_intfdata(interface, ar_usb); 6309cbee358SKalle Valo spin_lock_init(&(ar_usb->cs_lock)); 631241b128bSKalle Valo ar_usb->udev = dev; 632241b128bSKalle Valo ar_usb->interface = interface; 633241b128bSKalle Valo 6349cbee358SKalle Valo for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) { 6359cbee358SKalle Valo pipe = &ar_usb->pipes[i]; 6369cbee358SKalle Valo INIT_WORK(&pipe->io_complete_work, 6379cbee358SKalle Valo ath6kl_usb_io_comp_work); 6389cbee358SKalle Valo skb_queue_head_init(&pipe->io_comp_queue); 6399cbee358SKalle Valo } 6409cbee358SKalle Valo 641241b128bSKalle Valo ar_usb->diag_cmd_buffer = kzalloc(ATH6KL_USB_MAX_DIAG_CMD, GFP_KERNEL); 642241b128bSKalle Valo if (ar_usb->diag_cmd_buffer == NULL) { 643241b128bSKalle Valo status = -ENOMEM; 644241b128bSKalle Valo goto fail_ath6kl_usb_create; 645241b128bSKalle Valo } 646241b128bSKalle Valo 647241b128bSKalle Valo ar_usb->diag_resp_buffer = kzalloc(ATH6KL_USB_MAX_DIAG_RESP, 648241b128bSKalle Valo GFP_KERNEL); 649241b128bSKalle Valo if (ar_usb->diag_resp_buffer == NULL) { 650241b128bSKalle Valo status = -ENOMEM; 651241b128bSKalle Valo goto fail_ath6kl_usb_create; 652241b128bSKalle Valo } 653241b128bSKalle Valo 6549cbee358SKalle Valo status = ath6kl_usb_setup_pipe_resources(ar_usb); 6559cbee358SKalle Valo 656241b128bSKalle Valo fail_ath6kl_usb_create: 657241b128bSKalle Valo if (status != 0) { 658241b128bSKalle Valo ath6kl_usb_destroy(ar_usb); 659241b128bSKalle Valo ar_usb = NULL; 660241b128bSKalle Valo } 661241b128bSKalle Valo return ar_usb; 662241b128bSKalle Valo } 663241b128bSKalle Valo 664241b128bSKalle Valo static void ath6kl_usb_device_detached(struct usb_interface *interface) 665241b128bSKalle Valo { 666241b128bSKalle Valo struct ath6kl_usb *ar_usb; 667241b128bSKalle Valo 668241b128bSKalle Valo ar_usb = usb_get_intfdata(interface); 669241b128bSKalle Valo if (ar_usb == NULL) 670241b128bSKalle Valo return; 671241b128bSKalle Valo 672241b128bSKalle Valo ath6kl_stop_txrx(ar_usb->ar); 673241b128bSKalle Valo 6749cbee358SKalle Valo /* Delay to wait for the target to reboot */ 6759cbee358SKalle Valo mdelay(20); 676241b128bSKalle Valo ath6kl_core_cleanup(ar_usb->ar); 677241b128bSKalle Valo ath6kl_usb_destroy(ar_usb); 678241b128bSKalle Valo } 679241b128bSKalle Valo 6809cbee358SKalle Valo /* exported hif usb APIs for htc pipe */ 6819cbee358SKalle Valo static void hif_start(struct ath6kl *ar) 6829cbee358SKalle Valo { 6839cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 6849cbee358SKalle Valo int i; 6859cbee358SKalle Valo 6869cbee358SKalle Valo ath6kl_usb_start_recv_pipes(device); 6879cbee358SKalle Valo 6889cbee358SKalle Valo /* set the TX resource avail threshold for each TX pipe */ 6899cbee358SKalle Valo for (i = ATH6KL_USB_PIPE_TX_CTRL; 6909cbee358SKalle Valo i <= ATH6KL_USB_PIPE_TX_DATA_HP; i++) { 6919cbee358SKalle Valo device->pipes[i].urb_cnt_thresh = 6929cbee358SKalle Valo device->pipes[i].urb_alloc / 2; 6939cbee358SKalle Valo } 6949cbee358SKalle Valo } 6959cbee358SKalle Valo 6969cbee358SKalle Valo static int ath6kl_usb_send(struct ath6kl *ar, u8 PipeID, 6979cbee358SKalle Valo struct sk_buff *hdr_skb, struct sk_buff *skb) 6989cbee358SKalle Valo { 6999cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 7009cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = &device->pipes[PipeID]; 7019cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 7029cbee358SKalle Valo int usb_status, status = 0; 7039cbee358SKalle Valo struct urb *urb; 7049cbee358SKalle Valo u8 *data; 7059cbee358SKalle Valo u32 len; 7069cbee358SKalle Valo 7079cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, "+%s pipe : %d, buf:0x%p\n", 7089cbee358SKalle Valo __func__, PipeID, skb); 7099cbee358SKalle Valo 7109cbee358SKalle Valo urb_context = ath6kl_usb_alloc_urb_from_pipe(pipe); 7119cbee358SKalle Valo 7129cbee358SKalle Valo if (urb_context == NULL) { 7139cbee358SKalle Valo /* 7149cbee358SKalle Valo * TODO: it is possible to run out of urbs if 7159cbee358SKalle Valo * 2 endpoints map to the same pipe ID 7169cbee358SKalle Valo */ 7179cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 7189cbee358SKalle Valo "%s pipe:%d no urbs left. URB Cnt : %d\n", 7199cbee358SKalle Valo __func__, PipeID, pipe->urb_cnt); 7209cbee358SKalle Valo status = -ENOMEM; 7219cbee358SKalle Valo goto fail_hif_send; 7229cbee358SKalle Valo } 7239cbee358SKalle Valo 7249cbee358SKalle Valo urb_context->skb = skb; 7259cbee358SKalle Valo 7269cbee358SKalle Valo data = skb->data; 7279cbee358SKalle Valo len = skb->len; 7289cbee358SKalle Valo 7299cbee358SKalle Valo urb = usb_alloc_urb(0, GFP_ATOMIC); 7309cbee358SKalle Valo if (urb == NULL) { 7319cbee358SKalle Valo status = -ENOMEM; 7329cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, 7339cbee358SKalle Valo urb_context); 7349cbee358SKalle Valo goto fail_hif_send; 7359cbee358SKalle Valo } 7369cbee358SKalle Valo 7379cbee358SKalle Valo usb_fill_bulk_urb(urb, 7389cbee358SKalle Valo device->udev, 7399cbee358SKalle Valo pipe->usb_pipe_handle, 7409cbee358SKalle Valo data, 7419cbee358SKalle Valo len, 7429cbee358SKalle Valo ath6kl_usb_usb_transmit_complete, urb_context); 7439cbee358SKalle Valo 7449cbee358SKalle Valo if ((len % pipe->max_packet_size) == 0) { 7459cbee358SKalle Valo /* hit a max packet boundary on this pipe */ 7469cbee358SKalle Valo urb->transfer_flags |= URB_ZERO_PACKET; 7479cbee358SKalle Valo } 7489cbee358SKalle Valo 7499cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 7509cbee358SKalle Valo "athusb bulk send submit:%d, 0x%X (ep:0x%2.2X), %d bytes\n", 7519cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 7529cbee358SKalle Valo pipe->ep_address, len); 7539cbee358SKalle Valo 7549cbee358SKalle Valo usb_anchor_urb(urb, &pipe->urb_submitted); 7559cbee358SKalle Valo usb_status = usb_submit_urb(urb, GFP_ATOMIC); 7569cbee358SKalle Valo 7579cbee358SKalle Valo if (usb_status) { 7589cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 7599cbee358SKalle Valo "ath6kl usb : usb bulk transmit failed %d\n", 7609cbee358SKalle Valo usb_status); 7619cbee358SKalle Valo usb_unanchor_urb(urb); 7629cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, 7639cbee358SKalle Valo urb_context); 7649cbee358SKalle Valo status = -EINVAL; 7659cbee358SKalle Valo } 7669cbee358SKalle Valo usb_free_urb(urb); 7679cbee358SKalle Valo 7689cbee358SKalle Valo fail_hif_send: 7699cbee358SKalle Valo return status; 7709cbee358SKalle Valo } 7719cbee358SKalle Valo 7729cbee358SKalle Valo static void hif_stop(struct ath6kl *ar) 7739cbee358SKalle Valo { 7749cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 7759cbee358SKalle Valo 7769cbee358SKalle Valo ath6kl_usb_flush_all(device); 7779cbee358SKalle Valo } 7789cbee358SKalle Valo 7799cbee358SKalle Valo static void ath6kl_usb_get_default_pipe(struct ath6kl *ar, 7809cbee358SKalle Valo u8 *ul_pipe, u8 *dl_pipe) 7819cbee358SKalle Valo { 7829cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_CTRL; 7839cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_CTRL; 7849cbee358SKalle Valo } 7859cbee358SKalle Valo 7869cbee358SKalle Valo static int ath6kl_usb_map_service_pipe(struct ath6kl *ar, u16 svc_id, 7879cbee358SKalle Valo u8 *ul_pipe, u8 *dl_pipe) 7889cbee358SKalle Valo { 7899cbee358SKalle Valo int status = 0; 7909cbee358SKalle Valo 7919cbee358SKalle Valo switch (svc_id) { 7929cbee358SKalle Valo case HTC_CTRL_RSVD_SVC: 7939cbee358SKalle Valo case WMI_CONTROL_SVC: 7949cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_CTRL; 7959cbee358SKalle Valo /* due to large control packets, shift to data pipe */ 7969cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 7979cbee358SKalle Valo break; 7989cbee358SKalle Valo case WMI_DATA_BE_SVC: 7999cbee358SKalle Valo case WMI_DATA_BK_SVC: 8009cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_LP; 8019cbee358SKalle Valo /* 8029cbee358SKalle Valo * Disable rxdata2 directly, it will be enabled 8039cbee358SKalle Valo * if FW enable rxdata2 8049cbee358SKalle Valo */ 8059cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 8069cbee358SKalle Valo break; 8079cbee358SKalle Valo case WMI_DATA_VI_SVC: 8089cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_MP; 8099cbee358SKalle Valo /* 8109cbee358SKalle Valo * Disable rxdata2 directly, it will be enabled 8119cbee358SKalle Valo * if FW enable rxdata2 8129cbee358SKalle Valo */ 8139cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 8149cbee358SKalle Valo break; 8159cbee358SKalle Valo case WMI_DATA_VO_SVC: 8169cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_HP; 8179cbee358SKalle Valo /* 8189cbee358SKalle Valo * Disable rxdata2 directly, it will be enabled 8199cbee358SKalle Valo * if FW enable rxdata2 8209cbee358SKalle Valo */ 8219cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 8229cbee358SKalle Valo break; 8239cbee358SKalle Valo default: 8249cbee358SKalle Valo status = -EPERM; 8259cbee358SKalle Valo break; 8269cbee358SKalle Valo } 8279cbee358SKalle Valo 8289cbee358SKalle Valo return status; 8299cbee358SKalle Valo } 8309cbee358SKalle Valo 8319cbee358SKalle Valo static u16 ath6kl_usb_get_free_queue_number(struct ath6kl *ar, u8 pipe_id) 8329cbee358SKalle Valo { 8339cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 8349cbee358SKalle Valo 8359cbee358SKalle Valo return device->pipes[pipe_id].urb_cnt; 8369cbee358SKalle Valo } 8379cbee358SKalle Valo 8389cbee358SKalle Valo static void hif_detach_htc(struct ath6kl *ar) 8399cbee358SKalle Valo { 8409cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 8419cbee358SKalle Valo 8429cbee358SKalle Valo ath6kl_usb_flush_all(device); 8439cbee358SKalle Valo } 8449cbee358SKalle Valo 845241b128bSKalle Valo static int ath6kl_usb_submit_ctrl_out(struct ath6kl_usb *ar_usb, 846241b128bSKalle Valo u8 req, u16 value, u16 index, void *data, 847241b128bSKalle Valo u32 size) 848241b128bSKalle Valo { 849241b128bSKalle Valo u8 *buf = NULL; 850241b128bSKalle Valo int ret; 851241b128bSKalle Valo 852241b128bSKalle Valo if (size > 0) { 853241b128bSKalle Valo buf = kmalloc(size, GFP_KERNEL); 854241b128bSKalle Valo if (buf == NULL) 855241b128bSKalle Valo return -ENOMEM; 856241b128bSKalle Valo 857241b128bSKalle Valo memcpy(buf, data, size); 858241b128bSKalle Valo } 859241b128bSKalle Valo 860241b128bSKalle Valo /* note: if successful returns number of bytes transfered */ 861241b128bSKalle Valo ret = usb_control_msg(ar_usb->udev, 862241b128bSKalle Valo usb_sndctrlpipe(ar_usb->udev, 0), 863241b128bSKalle Valo req, 864241b128bSKalle Valo USB_DIR_OUT | USB_TYPE_VENDOR | 865241b128bSKalle Valo USB_RECIP_DEVICE, value, index, buf, 866241b128bSKalle Valo size, 1000); 867241b128bSKalle Valo 868241b128bSKalle Valo if (ret < 0) { 869241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "%s failed,result = %d\n", 870241b128bSKalle Valo __func__, ret); 871241b128bSKalle Valo } 872241b128bSKalle Valo 873241b128bSKalle Valo kfree(buf); 874241b128bSKalle Valo 875241b128bSKalle Valo return 0; 876241b128bSKalle Valo } 877241b128bSKalle Valo 878241b128bSKalle Valo static int ath6kl_usb_submit_ctrl_in(struct ath6kl_usb *ar_usb, 879241b128bSKalle Valo u8 req, u16 value, u16 index, void *data, 880241b128bSKalle Valo u32 size) 881241b128bSKalle Valo { 882241b128bSKalle Valo u8 *buf = NULL; 883241b128bSKalle Valo int ret; 884241b128bSKalle Valo 885241b128bSKalle Valo if (size > 0) { 886241b128bSKalle Valo buf = kmalloc(size, GFP_KERNEL); 887241b128bSKalle Valo if (buf == NULL) 888241b128bSKalle Valo return -ENOMEM; 889241b128bSKalle Valo } 890241b128bSKalle Valo 891241b128bSKalle Valo /* note: if successful returns number of bytes transfered */ 892241b128bSKalle Valo ret = usb_control_msg(ar_usb->udev, 893241b128bSKalle Valo usb_rcvctrlpipe(ar_usb->udev, 0), 894241b128bSKalle Valo req, 895241b128bSKalle Valo USB_DIR_IN | USB_TYPE_VENDOR | 896241b128bSKalle Valo USB_RECIP_DEVICE, value, index, buf, 897241b128bSKalle Valo size, 2 * HZ); 898241b128bSKalle Valo 899241b128bSKalle Valo if (ret < 0) { 900241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "%s failed,result = %d\n", 901241b128bSKalle Valo __func__, ret); 902241b128bSKalle Valo } 903241b128bSKalle Valo 904241b128bSKalle Valo memcpy((u8 *) data, buf, size); 905241b128bSKalle Valo 906241b128bSKalle Valo kfree(buf); 907241b128bSKalle Valo 908241b128bSKalle Valo return 0; 909241b128bSKalle Valo } 910241b128bSKalle Valo 911241b128bSKalle Valo static int ath6kl_usb_ctrl_msg_exchange(struct ath6kl_usb *ar_usb, 912241b128bSKalle Valo u8 req_val, u8 *req_buf, u32 req_len, 913241b128bSKalle Valo u8 resp_val, u8 *resp_buf, u32 *resp_len) 914241b128bSKalle Valo { 915241b128bSKalle Valo int ret; 916241b128bSKalle Valo 917241b128bSKalle Valo /* send command */ 918241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_out(ar_usb, req_val, 0, 0, 919241b128bSKalle Valo req_buf, req_len); 920241b128bSKalle Valo 921241b128bSKalle Valo if (ret != 0) 922241b128bSKalle Valo return ret; 923241b128bSKalle Valo 924241b128bSKalle Valo if (resp_buf == NULL) { 925241b128bSKalle Valo /* no expected response */ 926241b128bSKalle Valo return ret; 927241b128bSKalle Valo } 928241b128bSKalle Valo 929241b128bSKalle Valo /* get response */ 930241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_in(ar_usb, resp_val, 0, 0, 931241b128bSKalle Valo resp_buf, *resp_len); 932241b128bSKalle Valo 933241b128bSKalle Valo return ret; 934241b128bSKalle Valo } 935241b128bSKalle Valo 936241b128bSKalle Valo static int ath6kl_usb_diag_read32(struct ath6kl *ar, u32 address, u32 *data) 937241b128bSKalle Valo { 938241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 939241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_resp_read *resp; 940241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_cmd_read *cmd; 941241b128bSKalle Valo u32 resp_len; 942241b128bSKalle Valo int ret; 943241b128bSKalle Valo 944241b128bSKalle Valo cmd = (struct ath6kl_usb_ctrl_diag_cmd_read *) ar_usb->diag_cmd_buffer; 945241b128bSKalle Valo 946241b128bSKalle Valo memset(cmd, 0, sizeof(*cmd)); 947241b128bSKalle Valo cmd->cmd = ATH6KL_USB_CTRL_DIAG_CC_READ; 948241b128bSKalle Valo cmd->address = cpu_to_le32(address); 949241b128bSKalle Valo resp_len = sizeof(*resp); 950241b128bSKalle Valo 951241b128bSKalle Valo ret = ath6kl_usb_ctrl_msg_exchange(ar_usb, 952241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_DIAG_CMD, 953241b128bSKalle Valo (u8 *) cmd, 954241b128bSKalle Valo sizeof(struct ath6kl_usb_ctrl_diag_cmd_write), 955241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_DIAG_RESP, 956241b128bSKalle Valo ar_usb->diag_resp_buffer, &resp_len); 957241b128bSKalle Valo 958241b128bSKalle Valo if (ret) 959241b128bSKalle Valo return ret; 960241b128bSKalle Valo 961241b128bSKalle Valo resp = (struct ath6kl_usb_ctrl_diag_resp_read *) 962241b128bSKalle Valo ar_usb->diag_resp_buffer; 963241b128bSKalle Valo 964241b128bSKalle Valo *data = le32_to_cpu(resp->value); 965241b128bSKalle Valo 966241b128bSKalle Valo return ret; 967241b128bSKalle Valo } 968241b128bSKalle Valo 969241b128bSKalle Valo static int ath6kl_usb_diag_write32(struct ath6kl *ar, u32 address, __le32 data) 970241b128bSKalle Valo { 971241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 972241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_cmd_write *cmd; 973241b128bSKalle Valo 974241b128bSKalle Valo cmd = (struct ath6kl_usb_ctrl_diag_cmd_write *) ar_usb->diag_cmd_buffer; 975241b128bSKalle Valo 976241b128bSKalle Valo memset(cmd, 0, sizeof(struct ath6kl_usb_ctrl_diag_cmd_write)); 977241b128bSKalle Valo cmd->cmd = cpu_to_le32(ATH6KL_USB_CTRL_DIAG_CC_WRITE); 978241b128bSKalle Valo cmd->address = cpu_to_le32(address); 979241b128bSKalle Valo cmd->value = data; 980241b128bSKalle Valo 981241b128bSKalle Valo return ath6kl_usb_ctrl_msg_exchange(ar_usb, 982241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_DIAG_CMD, 983241b128bSKalle Valo (u8 *) cmd, 984241b128bSKalle Valo sizeof(*cmd), 985241b128bSKalle Valo 0, NULL, NULL); 986241b128bSKalle Valo 987241b128bSKalle Valo } 988241b128bSKalle Valo 989241b128bSKalle Valo static int ath6kl_usb_bmi_read(struct ath6kl *ar, u8 *buf, u32 len) 990241b128bSKalle Valo { 991241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 992241b128bSKalle Valo int ret; 993241b128bSKalle Valo 994241b128bSKalle Valo /* get response */ 995241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_in(ar_usb, 996241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP, 997241b128bSKalle Valo 0, 0, buf, len); 998241b128bSKalle Valo if (ret != 0) { 999241b128bSKalle Valo ath6kl_err("Unable to read the bmi data from the device: %d\n", 1000241b128bSKalle Valo ret); 1001241b128bSKalle Valo return ret; 1002241b128bSKalle Valo } 1003241b128bSKalle Valo 1004241b128bSKalle Valo return 0; 1005241b128bSKalle Valo } 1006241b128bSKalle Valo 1007241b128bSKalle Valo static int ath6kl_usb_bmi_write(struct ath6kl *ar, u8 *buf, u32 len) 1008241b128bSKalle Valo { 1009241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 1010241b128bSKalle Valo int ret; 1011241b128bSKalle Valo 1012241b128bSKalle Valo /* send command */ 1013241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_out(ar_usb, 1014241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_SEND_BMI_CMD, 1015241b128bSKalle Valo 0, 0, buf, len); 1016241b128bSKalle Valo if (ret != 0) { 1017241b128bSKalle Valo ath6kl_err("unable to send the bmi data to the device: %d\n", 1018241b128bSKalle Valo ret); 1019241b128bSKalle Valo return ret; 1020241b128bSKalle Valo } 1021241b128bSKalle Valo 1022241b128bSKalle Valo return 0; 1023241b128bSKalle Valo } 1024241b128bSKalle Valo 1025241b128bSKalle Valo static int ath6kl_usb_power_on(struct ath6kl *ar) 1026241b128bSKalle Valo { 10279cbee358SKalle Valo hif_start(ar); 1028241b128bSKalle Valo return 0; 1029241b128bSKalle Valo } 1030241b128bSKalle Valo 1031241b128bSKalle Valo static int ath6kl_usb_power_off(struct ath6kl *ar) 1032241b128bSKalle Valo { 10339cbee358SKalle Valo hif_detach_htc(ar); 1034241b128bSKalle Valo return 0; 1035241b128bSKalle Valo } 1036241b128bSKalle Valo 10379cbee358SKalle Valo static void ath6kl_usb_stop(struct ath6kl *ar) 10389cbee358SKalle Valo { 10399cbee358SKalle Valo hif_stop(ar); 10409cbee358SKalle Valo } 10419cbee358SKalle Valo 104208c61009SRay Chen static void ath6kl_usb_cleanup_scatter(struct ath6kl *ar) 104308c61009SRay Chen { 104408c61009SRay Chen /* 104508c61009SRay Chen * USB doesn't support it. Just return. 104608c61009SRay Chen */ 104708c61009SRay Chen return; 104808c61009SRay Chen } 104908c61009SRay Chen 1050241b128bSKalle Valo static const struct ath6kl_hif_ops ath6kl_usb_ops = { 1051241b128bSKalle Valo .diag_read32 = ath6kl_usb_diag_read32, 1052241b128bSKalle Valo .diag_write32 = ath6kl_usb_diag_write32, 1053241b128bSKalle Valo .bmi_read = ath6kl_usb_bmi_read, 1054241b128bSKalle Valo .bmi_write = ath6kl_usb_bmi_write, 1055241b128bSKalle Valo .power_on = ath6kl_usb_power_on, 1056241b128bSKalle Valo .power_off = ath6kl_usb_power_off, 10579cbee358SKalle Valo .stop = ath6kl_usb_stop, 10589cbee358SKalle Valo .pipe_send = ath6kl_usb_send, 10599cbee358SKalle Valo .pipe_get_default = ath6kl_usb_get_default_pipe, 10609cbee358SKalle Valo .pipe_map_service = ath6kl_usb_map_service_pipe, 10619cbee358SKalle Valo .pipe_get_free_queue_number = ath6kl_usb_get_free_queue_number, 106208c61009SRay Chen .cleanup_scatter = ath6kl_usb_cleanup_scatter, 1063241b128bSKalle Valo }; 1064241b128bSKalle Valo 1065241b128bSKalle Valo /* ath6kl usb driver registered functions */ 1066241b128bSKalle Valo static int ath6kl_usb_probe(struct usb_interface *interface, 1067241b128bSKalle Valo const struct usb_device_id *id) 1068241b128bSKalle Valo { 1069241b128bSKalle Valo struct usb_device *dev = interface_to_usbdev(interface); 1070241b128bSKalle Valo struct ath6kl *ar; 1071241b128bSKalle Valo struct ath6kl_usb *ar_usb = NULL; 1072241b128bSKalle Valo int vendor_id, product_id; 1073241b128bSKalle Valo int ret = 0; 1074241b128bSKalle Valo 1075241b128bSKalle Valo usb_get_dev(dev); 1076241b128bSKalle Valo 1077241b128bSKalle Valo vendor_id = le16_to_cpu(dev->descriptor.idVendor); 1078241b128bSKalle Valo product_id = le16_to_cpu(dev->descriptor.idProduct); 1079241b128bSKalle Valo 1080241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "vendor_id = %04x\n", vendor_id); 1081241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "product_id = %04x\n", product_id); 1082241b128bSKalle Valo 1083241b128bSKalle Valo if (interface->cur_altsetting) 1084241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "USB Interface %d\n", 1085241b128bSKalle Valo interface->cur_altsetting->desc.bInterfaceNumber); 1086241b128bSKalle Valo 1087241b128bSKalle Valo 1088241b128bSKalle Valo if (dev->speed == USB_SPEED_HIGH) 1089241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "USB 2.0 Host\n"); 1090241b128bSKalle Valo else 1091241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "USB 1.1 Host\n"); 1092241b128bSKalle Valo 1093241b128bSKalle Valo ar_usb = ath6kl_usb_create(interface); 1094241b128bSKalle Valo 1095241b128bSKalle Valo if (ar_usb == NULL) { 1096241b128bSKalle Valo ret = -ENOMEM; 1097241b128bSKalle Valo goto err_usb_put; 1098241b128bSKalle Valo } 1099241b128bSKalle Valo 1100241b128bSKalle Valo ar = ath6kl_core_create(&ar_usb->udev->dev); 1101241b128bSKalle Valo if (ar == NULL) { 1102241b128bSKalle Valo ath6kl_err("Failed to alloc ath6kl core\n"); 1103241b128bSKalle Valo ret = -ENOMEM; 1104241b128bSKalle Valo goto err_usb_destroy; 1105241b128bSKalle Valo } 1106241b128bSKalle Valo 1107241b128bSKalle Valo ar->hif_priv = ar_usb; 1108241b128bSKalle Valo ar->hif_type = ATH6KL_HIF_TYPE_USB; 1109241b128bSKalle Valo ar->hif_ops = &ath6kl_usb_ops; 1110241b128bSKalle Valo ar->mbox_info.block_size = 16; 1111241b128bSKalle Valo ar->bmi.max_data_size = 252; 1112241b128bSKalle Valo 1113241b128bSKalle Valo ar_usb->ar = ar; 1114241b128bSKalle Valo 11159cbee358SKalle Valo ret = ath6kl_core_init(ar, ATH6KL_HTC_TYPE_PIPE); 1116241b128bSKalle Valo if (ret) { 1117241b128bSKalle Valo ath6kl_err("Failed to init ath6kl core: %d\n", ret); 1118241b128bSKalle Valo goto err_core_free; 1119241b128bSKalle Valo } 1120241b128bSKalle Valo 1121241b128bSKalle Valo return ret; 1122241b128bSKalle Valo 1123241b128bSKalle Valo err_core_free: 1124241b128bSKalle Valo ath6kl_core_destroy(ar); 1125241b128bSKalle Valo err_usb_destroy: 1126241b128bSKalle Valo ath6kl_usb_destroy(ar_usb); 1127241b128bSKalle Valo err_usb_put: 1128241b128bSKalle Valo usb_put_dev(dev); 1129241b128bSKalle Valo 1130241b128bSKalle Valo return ret; 1131241b128bSKalle Valo } 1132241b128bSKalle Valo 1133241b128bSKalle Valo static void ath6kl_usb_remove(struct usb_interface *interface) 1134241b128bSKalle Valo { 1135241b128bSKalle Valo usb_put_dev(interface_to_usbdev(interface)); 1136241b128bSKalle Valo ath6kl_usb_device_detached(interface); 1137241b128bSKalle Valo } 1138241b128bSKalle Valo 11399cbee358SKalle Valo #ifdef CONFIG_PM 11409cbee358SKalle Valo 11419cbee358SKalle Valo static int ath6kl_usb_suspend(struct usb_interface *interface, 11429cbee358SKalle Valo pm_message_t message) 11439cbee358SKalle Valo { 11449cbee358SKalle Valo struct ath6kl_usb *device; 11459cbee358SKalle Valo device = usb_get_intfdata(interface); 11469cbee358SKalle Valo 11479cbee358SKalle Valo ath6kl_usb_flush_all(device); 11489cbee358SKalle Valo return 0; 11499cbee358SKalle Valo } 11509cbee358SKalle Valo 11519cbee358SKalle Valo static int ath6kl_usb_resume(struct usb_interface *interface) 11529cbee358SKalle Valo { 11539cbee358SKalle Valo struct ath6kl_usb *device; 11549cbee358SKalle Valo device = usb_get_intfdata(interface); 11559cbee358SKalle Valo 11569cbee358SKalle Valo ath6kl_usb_post_recv_transfers(&device->pipes[ATH6KL_USB_PIPE_RX_DATA], 11579cbee358SKalle Valo ATH6KL_USB_RX_BUFFER_SIZE); 11589cbee358SKalle Valo ath6kl_usb_post_recv_transfers(&device->pipes[ATH6KL_USB_PIPE_RX_DATA2], 11599cbee358SKalle Valo ATH6KL_USB_RX_BUFFER_SIZE); 11609cbee358SKalle Valo 11619cbee358SKalle Valo return 0; 11629cbee358SKalle Valo } 11639cbee358SKalle Valo 11649cbee358SKalle Valo static int ath6kl_usb_reset_resume(struct usb_interface *intf) 11659cbee358SKalle Valo { 11669cbee358SKalle Valo if (usb_get_intfdata(intf)) 11679cbee358SKalle Valo ath6kl_usb_remove(intf); 11689cbee358SKalle Valo return 0; 11699cbee358SKalle Valo } 11709cbee358SKalle Valo 11719cbee358SKalle Valo #else 11729cbee358SKalle Valo 11739cbee358SKalle Valo #define ath6kl_usb_suspend NULL 11749cbee358SKalle Valo #define ath6kl_usb_resume NULL 11759cbee358SKalle Valo #define ath6kl_usb_reset_resume NULL 11769cbee358SKalle Valo 11779cbee358SKalle Valo #endif 11789cbee358SKalle Valo 1179241b128bSKalle Valo /* table of devices that work with this driver */ 1180241b128bSKalle Valo static struct usb_device_id ath6kl_usb_ids[] = { 1181241b128bSKalle Valo {USB_DEVICE(0x0cf3, 0x9374)}, 1182241b128bSKalle Valo { /* Terminating entry */ }, 1183241b128bSKalle Valo }; 1184241b128bSKalle Valo 1185241b128bSKalle Valo MODULE_DEVICE_TABLE(usb, ath6kl_usb_ids); 1186241b128bSKalle Valo 1187241b128bSKalle Valo static struct usb_driver ath6kl_usb_driver = { 1188241b128bSKalle Valo .name = "ath6kl_usb", 1189241b128bSKalle Valo .probe = ath6kl_usb_probe, 11909cbee358SKalle Valo .suspend = ath6kl_usb_suspend, 11919cbee358SKalle Valo .resume = ath6kl_usb_resume, 11929cbee358SKalle Valo .reset_resume = ath6kl_usb_reset_resume, 1193241b128bSKalle Valo .disconnect = ath6kl_usb_remove, 1194241b128bSKalle Valo .id_table = ath6kl_usb_ids, 11959cbee358SKalle Valo .supports_autosuspend = true, 1196e1f12eb6SSarah Sharp .disable_hub_initiated_lpm = 1, 1197241b128bSKalle Valo }; 1198241b128bSKalle Valo 1199241b128bSKalle Valo static int ath6kl_usb_init(void) 1200241b128bSKalle Valo { 1201a3b3842cSMarina Makienko int ret; 1202a3b3842cSMarina Makienko 1203a3b3842cSMarina Makienko ret = usb_register(&ath6kl_usb_driver); 1204a3b3842cSMarina Makienko if (ret) { 1205a3b3842cSMarina Makienko ath6kl_err("usb registration failed: %d\n", ret); 1206a3b3842cSMarina Makienko return ret; 1207a3b3842cSMarina Makienko } 1208a3b3842cSMarina Makienko 1209241b128bSKalle Valo return 0; 1210241b128bSKalle Valo } 1211241b128bSKalle Valo 1212241b128bSKalle Valo static void ath6kl_usb_exit(void) 1213241b128bSKalle Valo { 1214241b128bSKalle Valo usb_deregister(&ath6kl_usb_driver); 1215241b128bSKalle Valo } 1216241b128bSKalle Valo 1217241b128bSKalle Valo module_init(ath6kl_usb_init); 1218241b128bSKalle Valo module_exit(ath6kl_usb_exit); 1219241b128bSKalle Valo 1220241b128bSKalle Valo MODULE_AUTHOR("Atheros Communications, Inc."); 1221241b128bSKalle Valo MODULE_DESCRIPTION("Driver support for Atheros AR600x USB devices"); 1222241b128bSKalle Valo MODULE_LICENSE("Dual BSD/GPL"); 1223241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_0_FIRMWARE_FILE); 1224241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_0_BOARD_DATA_FILE); 1225241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE); 1226241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_1_FIRMWARE_FILE); 1227241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_1_BOARD_DATA_FILE); 1228241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE); 12296146ca69SRay Chen MODULE_FIRMWARE(AR6004_HW_1_2_FIRMWARE_FILE); 12306146ca69SRay Chen MODULE_FIRMWARE(AR6004_HW_1_2_BOARD_DATA_FILE); 12316146ca69SRay Chen MODULE_FIRMWARE(AR6004_HW_1_2_DEFAULT_BOARD_DATA_FILE); 1232bf744f11SBala Shanmugam MODULE_FIRMWARE(AR6004_HW_1_3_FW_DIR "/" AR6004_HW_1_3_FIRMWARE_FILE); 1233bf744f11SBala Shanmugam MODULE_FIRMWARE(AR6004_HW_1_3_BOARD_DATA_FILE); 1234bf744f11SBala Shanmugam MODULE_FIRMWARE(AR6004_HW_1_3_DEFAULT_BOARD_DATA_FILE); 1235