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 27987cdcbaSJulien Massot #define ATH6KL_USB_RX_BUFFER_SIZE 4096 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 13539d170b3SHui Peng /* bail if this pipe is not initialized */ 13639d170b3SHui Peng if (!pipe->ar_usb) 13739d170b3SHui Peng return NULL; 13839d170b3SHui Peng 1399cbee358SKalle Valo spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags); 1409cbee358SKalle Valo if (!list_empty(&pipe->urb_list_head)) { 1419cbee358SKalle Valo urb_context = 1429cbee358SKalle Valo list_first_entry(&pipe->urb_list_head, 1439cbee358SKalle Valo struct ath6kl_urb_context, link); 1449cbee358SKalle Valo list_del(&urb_context->link); 1459cbee358SKalle Valo pipe->urb_cnt--; 1469cbee358SKalle Valo } 1479cbee358SKalle Valo spin_unlock_irqrestore(&pipe->ar_usb->cs_lock, flags); 1489cbee358SKalle Valo 1499cbee358SKalle Valo return urb_context; 1509cbee358SKalle Valo } 1519cbee358SKalle Valo 1529cbee358SKalle Valo static void ath6kl_usb_free_urb_to_pipe(struct ath6kl_usb_pipe *pipe, 1539cbee358SKalle Valo struct ath6kl_urb_context *urb_context) 1549cbee358SKalle Valo { 1559cbee358SKalle Valo unsigned long flags; 1569cbee358SKalle Valo 15739d170b3SHui Peng /* bail if this pipe is not initialized */ 15839d170b3SHui Peng if (!pipe->ar_usb) 15939d170b3SHui Peng return; 16039d170b3SHui Peng 1619cbee358SKalle Valo spin_lock_irqsave(&pipe->ar_usb->cs_lock, flags); 1629cbee358SKalle Valo pipe->urb_cnt++; 1639cbee358SKalle Valo 1649cbee358SKalle Valo list_add(&urb_context->link, &pipe->urb_list_head); 1659cbee358SKalle Valo spin_unlock_irqrestore(&pipe->ar_usb->cs_lock, flags); 1669cbee358SKalle Valo } 1679cbee358SKalle Valo 1689cbee358SKalle Valo static void ath6kl_usb_cleanup_recv_urb(struct ath6kl_urb_context *urb_context) 1699cbee358SKalle Valo { 1709cbee358SKalle Valo dev_kfree_skb(urb_context->skb); 1719cbee358SKalle Valo urb_context->skb = NULL; 1729cbee358SKalle Valo 1739cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, urb_context); 1749cbee358SKalle Valo } 1759cbee358SKalle Valo 1769cbee358SKalle Valo static inline struct ath6kl_usb *ath6kl_usb_priv(struct ath6kl *ar) 1779cbee358SKalle Valo { 1789cbee358SKalle Valo return ar->hif_priv; 1799cbee358SKalle Valo } 1809cbee358SKalle Valo 1819cbee358SKalle Valo /* pipe resource allocation/cleanup */ 1829cbee358SKalle Valo static int ath6kl_usb_alloc_pipe_resources(struct ath6kl_usb_pipe *pipe, 1839cbee358SKalle Valo int urb_cnt) 1849cbee358SKalle Valo { 1859cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 1869cbee358SKalle Valo int status = 0, i; 1879cbee358SKalle Valo 1889cbee358SKalle Valo INIT_LIST_HEAD(&pipe->urb_list_head); 1899cbee358SKalle Valo init_usb_anchor(&pipe->urb_submitted); 1909cbee358SKalle Valo 1919cbee358SKalle Valo for (i = 0; i < urb_cnt; i++) { 1929cbee358SKalle Valo urb_context = kzalloc(sizeof(struct ath6kl_urb_context), 1939cbee358SKalle Valo GFP_KERNEL); 1945dbdf6feSMohammed Shafi Shajakhan if (urb_context == NULL) { 1955dbdf6feSMohammed Shafi Shajakhan status = -ENOMEM; 1965dbdf6feSMohammed Shafi Shajakhan goto fail_alloc_pipe_resources; 1975dbdf6feSMohammed Shafi Shajakhan } 1989cbee358SKalle Valo 1999cbee358SKalle Valo urb_context->pipe = pipe; 2009cbee358SKalle Valo 2019cbee358SKalle Valo /* 2029cbee358SKalle Valo * we are only allocate the urb contexts here, the actual URB 2039cbee358SKalle Valo * is allocated from the kernel as needed to do a transaction 2049cbee358SKalle Valo */ 2059cbee358SKalle Valo pipe->urb_alloc++; 2069cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(pipe, urb_context); 2079cbee358SKalle Valo } 2089cbee358SKalle Valo 2099cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 2109cbee358SKalle Valo "ath6kl usb: alloc resources lpipe:%d hpipe:0x%X urbs:%d\n", 2119cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 2129cbee358SKalle Valo pipe->urb_alloc); 2139cbee358SKalle Valo 2145dbdf6feSMohammed Shafi Shajakhan fail_alloc_pipe_resources: 2159cbee358SKalle Valo return status; 2169cbee358SKalle Valo } 2179cbee358SKalle Valo 2189cbee358SKalle Valo static void ath6kl_usb_free_pipe_resources(struct ath6kl_usb_pipe *pipe) 2199cbee358SKalle Valo { 2209cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 2219cbee358SKalle Valo 2229cbee358SKalle Valo if (pipe->ar_usb == NULL) { 2239cbee358SKalle Valo /* nothing allocated for this pipe */ 2249cbee358SKalle Valo return; 2259cbee358SKalle Valo } 2269cbee358SKalle Valo 2279cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 2289cbee358SKalle Valo "ath6kl usb: free resources lpipe:%d" 2299cbee358SKalle Valo "hpipe:0x%X urbs:%d avail:%d\n", 2309cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 2319cbee358SKalle Valo pipe->urb_alloc, pipe->urb_cnt); 2329cbee358SKalle Valo 2339cbee358SKalle Valo if (pipe->urb_alloc != pipe->urb_cnt) { 2349cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 2359cbee358SKalle Valo "ath6kl usb: urb leak! lpipe:%d" 2369cbee358SKalle Valo "hpipe:0x%X urbs:%d avail:%d\n", 2379cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 2389cbee358SKalle Valo pipe->urb_alloc, pipe->urb_cnt); 2399cbee358SKalle Valo } 2409cbee358SKalle Valo 2419cbee358SKalle Valo while (true) { 2429cbee358SKalle Valo urb_context = ath6kl_usb_alloc_urb_from_pipe(pipe); 2439cbee358SKalle Valo if (urb_context == NULL) 2449cbee358SKalle Valo break; 2459cbee358SKalle Valo kfree(urb_context); 2469cbee358SKalle Valo } 2479cbee358SKalle Valo } 2489cbee358SKalle Valo 2499cbee358SKalle Valo static void ath6kl_usb_cleanup_pipe_resources(struct ath6kl_usb *ar_usb) 2509cbee358SKalle Valo { 2519cbee358SKalle Valo int i; 2529cbee358SKalle Valo 2539cbee358SKalle Valo for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) 2549cbee358SKalle Valo ath6kl_usb_free_pipe_resources(&ar_usb->pipes[i]); 2559cbee358SKalle Valo } 2569cbee358SKalle Valo 2579cbee358SKalle Valo static u8 ath6kl_usb_get_logical_pipe_num(struct ath6kl_usb *ar_usb, 2589cbee358SKalle Valo u8 ep_address, int *urb_count) 2599cbee358SKalle Valo { 2609cbee358SKalle Valo u8 pipe_num = ATH6KL_USB_PIPE_INVALID; 2619cbee358SKalle Valo 2629cbee358SKalle Valo switch (ep_address) { 2639cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_CTRL_IN: 2649cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_CTRL; 2659cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2669cbee358SKalle Valo break; 2679cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_IN: 2689cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_DATA; 2699cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2709cbee358SKalle Valo break; 2719cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_INT_IN: 2729cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_INT; 2739cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2749cbee358SKalle Valo break; 2759cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA2_IN: 2769cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_RX_DATA2; 2779cbee358SKalle Valo *urb_count = RX_URB_COUNT; 2789cbee358SKalle Valo break; 2799cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_CTRL_OUT: 2809cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_CTRL; 2819cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2829cbee358SKalle Valo break; 2839cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_LP_OUT: 2849cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_DATA_LP; 2859cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2869cbee358SKalle Valo break; 2879cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_MP_OUT: 2889cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_DATA_MP; 2899cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2909cbee358SKalle Valo break; 2919cbee358SKalle Valo case ATH6KL_USB_EP_ADDR_APP_DATA_HP_OUT: 2929cbee358SKalle Valo pipe_num = ATH6KL_USB_PIPE_TX_DATA_HP; 2939cbee358SKalle Valo *urb_count = TX_URB_COUNT; 2949cbee358SKalle Valo break; 2959cbee358SKalle Valo default: 2969cbee358SKalle Valo /* note: there may be endpoints not currently used */ 2979cbee358SKalle Valo break; 2989cbee358SKalle Valo } 2999cbee358SKalle Valo 3009cbee358SKalle Valo return pipe_num; 3019cbee358SKalle Valo } 3029cbee358SKalle Valo 3039cbee358SKalle Valo static int ath6kl_usb_setup_pipe_resources(struct ath6kl_usb *ar_usb) 3049cbee358SKalle Valo { 3059cbee358SKalle Valo struct usb_interface *interface = ar_usb->interface; 3069cbee358SKalle Valo struct usb_host_interface *iface_desc = interface->cur_altsetting; 3079cbee358SKalle Valo struct usb_endpoint_descriptor *endpoint; 3089cbee358SKalle Valo struct ath6kl_usb_pipe *pipe; 3099cbee358SKalle Valo int i, urbcount, status = 0; 3109cbee358SKalle Valo u8 pipe_num; 3119cbee358SKalle Valo 3129cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "setting up USB Pipes using interface\n"); 3139cbee358SKalle Valo 3140e20c3e1SKieran Bingham /* walk descriptors and setup pipes */ 3159cbee358SKalle Valo for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 3169cbee358SKalle Valo endpoint = &iface_desc->endpoint[i].desc; 3179cbee358SKalle Valo 3189cbee358SKalle Valo if (ATH6KL_USB_IS_BULK_EP(endpoint->bmAttributes)) { 3199cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 3209cbee358SKalle Valo "%s Bulk Ep:0x%2.2X maxpktsz:%d\n", 3219cbee358SKalle Valo ATH6KL_USB_IS_DIR_IN 3229cbee358SKalle Valo (endpoint->bEndpointAddress) ? 3239cbee358SKalle Valo "RX" : "TX", endpoint->bEndpointAddress, 3249cbee358SKalle Valo le16_to_cpu(endpoint->wMaxPacketSize)); 3259cbee358SKalle Valo } else if (ATH6KL_USB_IS_INT_EP(endpoint->bmAttributes)) { 3269cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 3279cbee358SKalle Valo "%s Int Ep:0x%2.2X maxpktsz:%d interval:%d\n", 3289cbee358SKalle Valo ATH6KL_USB_IS_DIR_IN 3299cbee358SKalle Valo (endpoint->bEndpointAddress) ? 3309cbee358SKalle Valo "RX" : "TX", endpoint->bEndpointAddress, 3319cbee358SKalle Valo le16_to_cpu(endpoint->wMaxPacketSize), 3329cbee358SKalle Valo endpoint->bInterval); 3339cbee358SKalle Valo } else if (ATH6KL_USB_IS_ISOC_EP(endpoint->bmAttributes)) { 3349cbee358SKalle Valo /* TODO for ISO */ 3359cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, 3369cbee358SKalle Valo "%s ISOC Ep:0x%2.2X maxpktsz:%d interval:%d\n", 3379cbee358SKalle Valo ATH6KL_USB_IS_DIR_IN 3389cbee358SKalle Valo (endpoint->bEndpointAddress) ? 3399cbee358SKalle Valo "RX" : "TX", endpoint->bEndpointAddress, 3409cbee358SKalle Valo le16_to_cpu(endpoint->wMaxPacketSize), 3419cbee358SKalle Valo endpoint->bInterval); 3429cbee358SKalle Valo } 343*c1b9ca36SJohan Hovold 344*c1b9ca36SJohan Hovold /* Ignore broken descriptors. */ 345*c1b9ca36SJohan Hovold if (usb_endpoint_maxp(endpoint) == 0) 346*c1b9ca36SJohan Hovold continue; 347*c1b9ca36SJohan Hovold 3489cbee358SKalle Valo urbcount = 0; 3499cbee358SKalle Valo 3509cbee358SKalle Valo pipe_num = 3519cbee358SKalle Valo ath6kl_usb_get_logical_pipe_num(ar_usb, 3529cbee358SKalle Valo endpoint->bEndpointAddress, 3539cbee358SKalle Valo &urbcount); 3549cbee358SKalle Valo if (pipe_num == ATH6KL_USB_PIPE_INVALID) 3559cbee358SKalle Valo continue; 3569cbee358SKalle Valo 3579cbee358SKalle Valo pipe = &ar_usb->pipes[pipe_num]; 3589cbee358SKalle Valo if (pipe->ar_usb != NULL) { 3599cbee358SKalle Valo /* hmmm..pipe was already setup */ 3609cbee358SKalle Valo continue; 3619cbee358SKalle Valo } 3629cbee358SKalle Valo 3639cbee358SKalle Valo pipe->ar_usb = ar_usb; 3649cbee358SKalle Valo pipe->logical_pipe_num = pipe_num; 3659cbee358SKalle Valo pipe->ep_address = endpoint->bEndpointAddress; 3669cbee358SKalle Valo pipe->max_packet_size = le16_to_cpu(endpoint->wMaxPacketSize); 3679cbee358SKalle Valo 3689cbee358SKalle Valo if (ATH6KL_USB_IS_BULK_EP(endpoint->bmAttributes)) { 3699cbee358SKalle Valo if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) { 3709cbee358SKalle Valo pipe->usb_pipe_handle = 3719cbee358SKalle Valo usb_rcvbulkpipe(ar_usb->udev, 3729cbee358SKalle Valo pipe->ep_address); 3739cbee358SKalle Valo } else { 3749cbee358SKalle Valo pipe->usb_pipe_handle = 3759cbee358SKalle Valo usb_sndbulkpipe(ar_usb->udev, 3769cbee358SKalle Valo pipe->ep_address); 3779cbee358SKalle Valo } 3789cbee358SKalle Valo } else if (ATH6KL_USB_IS_INT_EP(endpoint->bmAttributes)) { 3799cbee358SKalle Valo if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) { 3809cbee358SKalle Valo pipe->usb_pipe_handle = 3819cbee358SKalle Valo usb_rcvintpipe(ar_usb->udev, 3829cbee358SKalle Valo pipe->ep_address); 3839cbee358SKalle Valo } else { 3849cbee358SKalle Valo pipe->usb_pipe_handle = 3859cbee358SKalle Valo usb_sndintpipe(ar_usb->udev, 3869cbee358SKalle Valo pipe->ep_address); 3879cbee358SKalle Valo } 3889cbee358SKalle Valo } else if (ATH6KL_USB_IS_ISOC_EP(endpoint->bmAttributes)) { 3899cbee358SKalle Valo /* TODO for ISO */ 3909cbee358SKalle Valo if (ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) { 3919cbee358SKalle Valo pipe->usb_pipe_handle = 3929cbee358SKalle Valo usb_rcvisocpipe(ar_usb->udev, 3939cbee358SKalle Valo pipe->ep_address); 3949cbee358SKalle Valo } else { 3959cbee358SKalle Valo pipe->usb_pipe_handle = 3969cbee358SKalle Valo usb_sndisocpipe(ar_usb->udev, 3979cbee358SKalle Valo pipe->ep_address); 3989cbee358SKalle Valo } 3999cbee358SKalle Valo } 4009cbee358SKalle Valo 4019cbee358SKalle Valo pipe->ep_desc = endpoint; 4029cbee358SKalle Valo 4039cbee358SKalle Valo if (!ATH6KL_USB_IS_DIR_IN(pipe->ep_address)) 4049cbee358SKalle Valo pipe->flags |= ATH6KL_USB_PIPE_FLAG_TX; 4059cbee358SKalle Valo 4069cbee358SKalle Valo status = ath6kl_usb_alloc_pipe_resources(pipe, urbcount); 4079cbee358SKalle Valo if (status != 0) 4089cbee358SKalle Valo break; 4099cbee358SKalle Valo } 4109cbee358SKalle Valo 4119cbee358SKalle Valo return status; 4129cbee358SKalle Valo } 4139cbee358SKalle Valo 4149cbee358SKalle Valo /* pipe operations */ 4159cbee358SKalle Valo static void ath6kl_usb_post_recv_transfers(struct ath6kl_usb_pipe *recv_pipe, 4169cbee358SKalle Valo int buffer_length) 4179cbee358SKalle Valo { 4189cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 4199cbee358SKalle Valo struct urb *urb; 4209cbee358SKalle Valo int usb_status; 4219cbee358SKalle Valo 4229cbee358SKalle Valo while (true) { 4239cbee358SKalle Valo urb_context = ath6kl_usb_alloc_urb_from_pipe(recv_pipe); 4249cbee358SKalle Valo if (urb_context == NULL) 4259cbee358SKalle Valo break; 4269cbee358SKalle Valo 4279cbee358SKalle Valo urb_context->skb = dev_alloc_skb(buffer_length); 4289cbee358SKalle Valo if (urb_context->skb == NULL) 4299cbee358SKalle Valo goto err_cleanup_urb; 4309cbee358SKalle Valo 4319cbee358SKalle Valo urb = usb_alloc_urb(0, GFP_ATOMIC); 4329cbee358SKalle Valo if (urb == NULL) 4339cbee358SKalle Valo goto err_cleanup_urb; 4349cbee358SKalle Valo 4359cbee358SKalle Valo usb_fill_bulk_urb(urb, 4369cbee358SKalle Valo recv_pipe->ar_usb->udev, 4379cbee358SKalle Valo recv_pipe->usb_pipe_handle, 4389cbee358SKalle Valo urb_context->skb->data, 4399cbee358SKalle Valo buffer_length, 4409cbee358SKalle Valo ath6kl_usb_recv_complete, urb_context); 4419cbee358SKalle Valo 4429cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 4439cbee358SKalle Valo "ath6kl usb: bulk recv submit:%d, 0x%X (ep:0x%2.2X), %d bytes buf:0x%p\n", 4449cbee358SKalle Valo recv_pipe->logical_pipe_num, 4459cbee358SKalle Valo recv_pipe->usb_pipe_handle, recv_pipe->ep_address, 4469cbee358SKalle Valo buffer_length, urb_context->skb); 4479cbee358SKalle Valo 4489cbee358SKalle Valo usb_anchor_urb(urb, &recv_pipe->urb_submitted); 4499cbee358SKalle Valo usb_status = usb_submit_urb(urb, GFP_ATOMIC); 4509cbee358SKalle Valo 4519cbee358SKalle Valo if (usb_status) { 4529cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 4539cbee358SKalle Valo "ath6kl usb : usb bulk recv failed %d\n", 4549cbee358SKalle Valo usb_status); 4559cbee358SKalle Valo usb_unanchor_urb(urb); 4569cbee358SKalle Valo usb_free_urb(urb); 4579cbee358SKalle Valo goto err_cleanup_urb; 4589cbee358SKalle Valo } 4599cbee358SKalle Valo usb_free_urb(urb); 4609cbee358SKalle Valo } 4619cbee358SKalle Valo return; 4629cbee358SKalle Valo 4639cbee358SKalle Valo err_cleanup_urb: 4649cbee358SKalle Valo ath6kl_usb_cleanup_recv_urb(urb_context); 4659cbee358SKalle Valo return; 4669cbee358SKalle Valo } 4679cbee358SKalle Valo 4689cbee358SKalle Valo static void ath6kl_usb_flush_all(struct ath6kl_usb *ar_usb) 4699cbee358SKalle Valo { 4709cbee358SKalle Valo int i; 4719cbee358SKalle Valo 4729cbee358SKalle Valo for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) { 4739cbee358SKalle Valo if (ar_usb->pipes[i].ar_usb != NULL) 4749cbee358SKalle Valo usb_kill_anchored_urbs(&ar_usb->pipes[i].urb_submitted); 4759cbee358SKalle Valo } 4769cbee358SKalle Valo 4779cbee358SKalle Valo /* 4789cbee358SKalle Valo * Flushing any pending I/O may schedule work this call will block 4799cbee358SKalle Valo * until all scheduled work runs to completion. 4809cbee358SKalle Valo */ 4819cbee358SKalle Valo flush_scheduled_work(); 4829cbee358SKalle Valo } 4839cbee358SKalle Valo 4849cbee358SKalle Valo static void ath6kl_usb_start_recv_pipes(struct ath6kl_usb *ar_usb) 4859cbee358SKalle Valo { 4869cbee358SKalle Valo /* 4879cbee358SKalle Valo * note: control pipe is no longer used 4889cbee358SKalle Valo * ar_usb->pipes[ATH6KL_USB_PIPE_RX_CTRL].urb_cnt_thresh = 4899cbee358SKalle Valo * ar_usb->pipes[ATH6KL_USB_PIPE_RX_CTRL].urb_alloc/2; 4909cbee358SKalle Valo * ath6kl_usb_post_recv_transfers(&ar_usb-> 4919cbee358SKalle Valo * pipes[ATH6KL_USB_PIPE_RX_CTRL], 4929cbee358SKalle Valo * ATH6KL_USB_RX_BUFFER_SIZE); 4939cbee358SKalle Valo */ 4949cbee358SKalle Valo 49561118fbfSJulien Massot ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA].urb_cnt_thresh = 1; 49661118fbfSJulien Massot 4979cbee358SKalle Valo ath6kl_usb_post_recv_transfers(&ar_usb->pipes[ATH6KL_USB_PIPE_RX_DATA], 4989cbee358SKalle Valo ATH6KL_USB_RX_BUFFER_SIZE); 4999cbee358SKalle Valo } 5009cbee358SKalle Valo 5019cbee358SKalle Valo /* hif usb rx/tx completion functions */ 5029cbee358SKalle Valo static void ath6kl_usb_recv_complete(struct urb *urb) 5039cbee358SKalle Valo { 5049cbee358SKalle Valo struct ath6kl_urb_context *urb_context = urb->context; 5059cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = urb_context->pipe; 5069cbee358SKalle Valo struct sk_buff *skb = NULL; 5079cbee358SKalle Valo int status = 0; 5089cbee358SKalle Valo 5099cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5109cbee358SKalle Valo "%s: recv pipe: %d, stat:%d, len:%d urb:0x%p\n", __func__, 5119cbee358SKalle Valo pipe->logical_pipe_num, urb->status, urb->actual_length, 5129cbee358SKalle Valo urb); 5139cbee358SKalle Valo 5149cbee358SKalle Valo if (urb->status != 0) { 5159cbee358SKalle Valo status = -EIO; 5169cbee358SKalle Valo switch (urb->status) { 5179cbee358SKalle Valo case -ECONNRESET: 5189cbee358SKalle Valo case -ENOENT: 5199cbee358SKalle Valo case -ESHUTDOWN: 5209cbee358SKalle Valo /* 5219cbee358SKalle Valo * no need to spew these errors when device 5229cbee358SKalle Valo * removed or urb killed due to driver shutdown 5239cbee358SKalle Valo */ 5249cbee358SKalle Valo status = -ECANCELED; 5259cbee358SKalle Valo break; 5269cbee358SKalle Valo default: 5279cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5289cbee358SKalle Valo "%s recv pipe: %d (ep:0x%2.2X), failed:%d\n", 5299cbee358SKalle Valo __func__, pipe->logical_pipe_num, 5309cbee358SKalle Valo pipe->ep_address, urb->status); 5319cbee358SKalle Valo break; 5329cbee358SKalle Valo } 5339cbee358SKalle Valo goto cleanup_recv_urb; 5349cbee358SKalle Valo } 5359cbee358SKalle Valo 5369cbee358SKalle Valo if (urb->actual_length == 0) 5379cbee358SKalle Valo goto cleanup_recv_urb; 5389cbee358SKalle Valo 5399cbee358SKalle Valo skb = urb_context->skb; 5409cbee358SKalle Valo 5419cbee358SKalle Valo /* we are going to pass it up */ 5429cbee358SKalle Valo urb_context->skb = NULL; 5439cbee358SKalle Valo skb_put(skb, urb->actual_length); 5449cbee358SKalle Valo 5459cbee358SKalle Valo /* note: queue implements a lock */ 5469cbee358SKalle Valo skb_queue_tail(&pipe->io_comp_queue, skb); 5479cbee358SKalle Valo schedule_work(&pipe->io_complete_work); 5489cbee358SKalle Valo 5499cbee358SKalle Valo cleanup_recv_urb: 5509cbee358SKalle Valo ath6kl_usb_cleanup_recv_urb(urb_context); 5519cbee358SKalle Valo 5529cbee358SKalle Valo if (status == 0 && 5539cbee358SKalle Valo pipe->urb_cnt >= pipe->urb_cnt_thresh) { 5549cbee358SKalle Valo /* our free urbs are piling up, post more transfers */ 5559cbee358SKalle Valo ath6kl_usb_post_recv_transfers(pipe, ATH6KL_USB_RX_BUFFER_SIZE); 5569cbee358SKalle Valo } 5579cbee358SKalle Valo } 5589cbee358SKalle Valo 5599cbee358SKalle Valo static void ath6kl_usb_usb_transmit_complete(struct urb *urb) 5609cbee358SKalle Valo { 5619cbee358SKalle Valo struct ath6kl_urb_context *urb_context = urb->context; 5629cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = urb_context->pipe; 5639cbee358SKalle Valo struct sk_buff *skb; 5649cbee358SKalle Valo 5659cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5669cbee358SKalle Valo "%s: pipe: %d, stat:%d, len:%d\n", 5679cbee358SKalle Valo __func__, pipe->logical_pipe_num, urb->status, 5689cbee358SKalle Valo urb->actual_length); 5699cbee358SKalle Valo 5709cbee358SKalle Valo if (urb->status != 0) { 5719cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5729cbee358SKalle Valo "%s: pipe: %d, failed:%d\n", 5739cbee358SKalle Valo __func__, pipe->logical_pipe_num, urb->status); 5749cbee358SKalle Valo } 5759cbee358SKalle Valo 5769cbee358SKalle Valo skb = urb_context->skb; 5779cbee358SKalle Valo urb_context->skb = NULL; 5789cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, urb_context); 5799cbee358SKalle Valo 5809cbee358SKalle Valo /* note: queue implements a lock */ 5819cbee358SKalle Valo skb_queue_tail(&pipe->io_comp_queue, skb); 5829cbee358SKalle Valo schedule_work(&pipe->io_complete_work); 5839cbee358SKalle Valo } 5849cbee358SKalle Valo 5859cbee358SKalle Valo static void ath6kl_usb_io_comp_work(struct work_struct *work) 5869cbee358SKalle Valo { 5879cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = container_of(work, 5889cbee358SKalle Valo struct ath6kl_usb_pipe, 5899cbee358SKalle Valo io_complete_work); 5909cbee358SKalle Valo struct ath6kl_usb *ar_usb; 5919cbee358SKalle Valo struct sk_buff *skb; 5929cbee358SKalle Valo 5939cbee358SKalle Valo ar_usb = pipe->ar_usb; 5949cbee358SKalle Valo 5959cbee358SKalle Valo while ((skb = skb_dequeue(&pipe->io_comp_queue))) { 5969cbee358SKalle Valo if (pipe->flags & ATH6KL_USB_PIPE_FLAG_TX) { 5979cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 5989cbee358SKalle Valo "ath6kl usb xmit callback buf:0x%p\n", skb); 5999cbee358SKalle Valo ath6kl_core_tx_complete(ar_usb->ar, skb); 6009cbee358SKalle Valo } else { 6019cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 6029cbee358SKalle Valo "ath6kl usb recv callback buf:0x%p\n", skb); 6039cbee358SKalle Valo ath6kl_core_rx_complete(ar_usb->ar, skb, 6049cbee358SKalle Valo pipe->logical_pipe_num); 6059cbee358SKalle Valo } 6069cbee358SKalle Valo } 6079cbee358SKalle Valo } 6089cbee358SKalle Valo 609241b128bSKalle Valo #define ATH6KL_USB_MAX_DIAG_CMD (sizeof(struct ath6kl_usb_ctrl_diag_cmd_write)) 610241b128bSKalle Valo #define ATH6KL_USB_MAX_DIAG_RESP (sizeof(struct ath6kl_usb_ctrl_diag_resp_read)) 611241b128bSKalle Valo 612241b128bSKalle Valo static void ath6kl_usb_destroy(struct ath6kl_usb *ar_usb) 613241b128bSKalle Valo { 6149cbee358SKalle Valo ath6kl_usb_flush_all(ar_usb); 6159cbee358SKalle Valo 6169cbee358SKalle Valo ath6kl_usb_cleanup_pipe_resources(ar_usb); 6179cbee358SKalle Valo 618241b128bSKalle Valo usb_set_intfdata(ar_usb->interface, NULL); 619241b128bSKalle Valo 620241b128bSKalle Valo kfree(ar_usb->diag_cmd_buffer); 621241b128bSKalle Valo kfree(ar_usb->diag_resp_buffer); 622241b128bSKalle Valo 623241b128bSKalle Valo kfree(ar_usb); 624241b128bSKalle Valo } 625241b128bSKalle Valo 626241b128bSKalle Valo static struct ath6kl_usb *ath6kl_usb_create(struct usb_interface *interface) 627241b128bSKalle Valo { 628241b128bSKalle Valo struct usb_device *dev = interface_to_usbdev(interface); 6299cbee358SKalle Valo struct ath6kl_usb *ar_usb; 6309cbee358SKalle Valo struct ath6kl_usb_pipe *pipe; 631241b128bSKalle Valo int status = 0; 6329cbee358SKalle Valo int i; 633241b128bSKalle Valo 634241b128bSKalle Valo ar_usb = kzalloc(sizeof(struct ath6kl_usb), GFP_KERNEL); 635241b128bSKalle Valo if (ar_usb == NULL) 636241b128bSKalle Valo goto fail_ath6kl_usb_create; 637241b128bSKalle Valo 638241b128bSKalle Valo usb_set_intfdata(interface, ar_usb); 6399cbee358SKalle Valo spin_lock_init(&(ar_usb->cs_lock)); 640241b128bSKalle Valo ar_usb->udev = dev; 641241b128bSKalle Valo ar_usb->interface = interface; 642241b128bSKalle Valo 6439cbee358SKalle Valo for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++) { 6449cbee358SKalle Valo pipe = &ar_usb->pipes[i]; 6459cbee358SKalle Valo INIT_WORK(&pipe->io_complete_work, 6469cbee358SKalle Valo ath6kl_usb_io_comp_work); 6479cbee358SKalle Valo skb_queue_head_init(&pipe->io_comp_queue); 6489cbee358SKalle Valo } 6499cbee358SKalle Valo 650241b128bSKalle Valo ar_usb->diag_cmd_buffer = kzalloc(ATH6KL_USB_MAX_DIAG_CMD, GFP_KERNEL); 651241b128bSKalle Valo if (ar_usb->diag_cmd_buffer == NULL) { 652241b128bSKalle Valo status = -ENOMEM; 653241b128bSKalle Valo goto fail_ath6kl_usb_create; 654241b128bSKalle Valo } 655241b128bSKalle Valo 656241b128bSKalle Valo ar_usb->diag_resp_buffer = kzalloc(ATH6KL_USB_MAX_DIAG_RESP, 657241b128bSKalle Valo GFP_KERNEL); 658241b128bSKalle Valo if (ar_usb->diag_resp_buffer == NULL) { 659241b128bSKalle Valo status = -ENOMEM; 660241b128bSKalle Valo goto fail_ath6kl_usb_create; 661241b128bSKalle Valo } 662241b128bSKalle Valo 6639cbee358SKalle Valo status = ath6kl_usb_setup_pipe_resources(ar_usb); 6649cbee358SKalle Valo 665241b128bSKalle Valo fail_ath6kl_usb_create: 666241b128bSKalle Valo if (status != 0) { 667241b128bSKalle Valo ath6kl_usb_destroy(ar_usb); 668241b128bSKalle Valo ar_usb = NULL; 669241b128bSKalle Valo } 670241b128bSKalle Valo return ar_usb; 671241b128bSKalle Valo } 672241b128bSKalle Valo 673241b128bSKalle Valo static void ath6kl_usb_device_detached(struct usb_interface *interface) 674241b128bSKalle Valo { 675241b128bSKalle Valo struct ath6kl_usb *ar_usb; 676241b128bSKalle Valo 677241b128bSKalle Valo ar_usb = usb_get_intfdata(interface); 678241b128bSKalle Valo if (ar_usb == NULL) 679241b128bSKalle Valo return; 680241b128bSKalle Valo 681241b128bSKalle Valo ath6kl_stop_txrx(ar_usb->ar); 682241b128bSKalle Valo 6839cbee358SKalle Valo /* Delay to wait for the target to reboot */ 6849cbee358SKalle Valo mdelay(20); 685241b128bSKalle Valo ath6kl_core_cleanup(ar_usb->ar); 686241b128bSKalle Valo ath6kl_usb_destroy(ar_usb); 687241b128bSKalle Valo } 688241b128bSKalle Valo 6899cbee358SKalle Valo /* exported hif usb APIs for htc pipe */ 6909cbee358SKalle Valo static void hif_start(struct ath6kl *ar) 6919cbee358SKalle Valo { 6929cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 6939cbee358SKalle Valo int i; 6949cbee358SKalle Valo 6959cbee358SKalle Valo ath6kl_usb_start_recv_pipes(device); 6969cbee358SKalle Valo 6979cbee358SKalle Valo /* set the TX resource avail threshold for each TX pipe */ 6989cbee358SKalle Valo for (i = ATH6KL_USB_PIPE_TX_CTRL; 6999cbee358SKalle Valo i <= ATH6KL_USB_PIPE_TX_DATA_HP; i++) { 7009cbee358SKalle Valo device->pipes[i].urb_cnt_thresh = 7019cbee358SKalle Valo device->pipes[i].urb_alloc / 2; 7029cbee358SKalle Valo } 7039cbee358SKalle Valo } 7049cbee358SKalle Valo 7059cbee358SKalle Valo static int ath6kl_usb_send(struct ath6kl *ar, u8 PipeID, 7069cbee358SKalle Valo struct sk_buff *hdr_skb, struct sk_buff *skb) 7079cbee358SKalle Valo { 7089cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 7099cbee358SKalle Valo struct ath6kl_usb_pipe *pipe = &device->pipes[PipeID]; 7109cbee358SKalle Valo struct ath6kl_urb_context *urb_context; 7119cbee358SKalle Valo int usb_status, status = 0; 7129cbee358SKalle Valo struct urb *urb; 7139cbee358SKalle Valo u8 *data; 7149cbee358SKalle Valo u32 len; 7159cbee358SKalle Valo 7169cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, "+%s pipe : %d, buf:0x%p\n", 7179cbee358SKalle Valo __func__, PipeID, skb); 7189cbee358SKalle Valo 7199cbee358SKalle Valo urb_context = ath6kl_usb_alloc_urb_from_pipe(pipe); 7209cbee358SKalle Valo 7219cbee358SKalle Valo if (urb_context == NULL) { 7229cbee358SKalle Valo /* 7239cbee358SKalle Valo * TODO: it is possible to run out of urbs if 7249cbee358SKalle Valo * 2 endpoints map to the same pipe ID 7259cbee358SKalle Valo */ 7269cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 7279cbee358SKalle Valo "%s pipe:%d no urbs left. URB Cnt : %d\n", 7289cbee358SKalle Valo __func__, PipeID, pipe->urb_cnt); 7299cbee358SKalle Valo status = -ENOMEM; 7309cbee358SKalle Valo goto fail_hif_send; 7319cbee358SKalle Valo } 7329cbee358SKalle Valo 7339cbee358SKalle Valo urb_context->skb = skb; 7349cbee358SKalle Valo 7359cbee358SKalle Valo data = skb->data; 7369cbee358SKalle Valo len = skb->len; 7379cbee358SKalle Valo 7389cbee358SKalle Valo urb = usb_alloc_urb(0, GFP_ATOMIC); 7399cbee358SKalle Valo if (urb == NULL) { 7409cbee358SKalle Valo status = -ENOMEM; 7419cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, 7429cbee358SKalle Valo urb_context); 7439cbee358SKalle Valo goto fail_hif_send; 7449cbee358SKalle Valo } 7459cbee358SKalle Valo 7469cbee358SKalle Valo usb_fill_bulk_urb(urb, 7479cbee358SKalle Valo device->udev, 7489cbee358SKalle Valo pipe->usb_pipe_handle, 7499cbee358SKalle Valo data, 7509cbee358SKalle Valo len, 7519cbee358SKalle Valo ath6kl_usb_usb_transmit_complete, urb_context); 7529cbee358SKalle Valo 7539cbee358SKalle Valo if ((len % pipe->max_packet_size) == 0) { 7549cbee358SKalle Valo /* hit a max packet boundary on this pipe */ 7559cbee358SKalle Valo urb->transfer_flags |= URB_ZERO_PACKET; 7569cbee358SKalle Valo } 7579cbee358SKalle Valo 7589cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 7599cbee358SKalle Valo "athusb bulk send submit:%d, 0x%X (ep:0x%2.2X), %d bytes\n", 7609cbee358SKalle Valo pipe->logical_pipe_num, pipe->usb_pipe_handle, 7619cbee358SKalle Valo pipe->ep_address, len); 7629cbee358SKalle Valo 7639cbee358SKalle Valo usb_anchor_urb(urb, &pipe->urb_submitted); 7649cbee358SKalle Valo usb_status = usb_submit_urb(urb, GFP_ATOMIC); 7659cbee358SKalle Valo 7669cbee358SKalle Valo if (usb_status) { 7679cbee358SKalle Valo ath6kl_dbg(ATH6KL_DBG_USB_BULK, 7689cbee358SKalle Valo "ath6kl usb : usb bulk transmit failed %d\n", 7699cbee358SKalle Valo usb_status); 7709cbee358SKalle Valo usb_unanchor_urb(urb); 7719cbee358SKalle Valo ath6kl_usb_free_urb_to_pipe(urb_context->pipe, 7729cbee358SKalle Valo urb_context); 7739cbee358SKalle Valo status = -EINVAL; 7749cbee358SKalle Valo } 7759cbee358SKalle Valo usb_free_urb(urb); 7769cbee358SKalle Valo 7779cbee358SKalle Valo fail_hif_send: 7789cbee358SKalle Valo return status; 7799cbee358SKalle Valo } 7809cbee358SKalle Valo 7819cbee358SKalle Valo static void hif_stop(struct ath6kl *ar) 7829cbee358SKalle Valo { 7839cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 7849cbee358SKalle Valo 7859cbee358SKalle Valo ath6kl_usb_flush_all(device); 7869cbee358SKalle Valo } 7879cbee358SKalle Valo 7889cbee358SKalle Valo static void ath6kl_usb_get_default_pipe(struct ath6kl *ar, 7899cbee358SKalle Valo u8 *ul_pipe, u8 *dl_pipe) 7909cbee358SKalle Valo { 7919cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_CTRL; 7929cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_CTRL; 7939cbee358SKalle Valo } 7949cbee358SKalle Valo 7959cbee358SKalle Valo static int ath6kl_usb_map_service_pipe(struct ath6kl *ar, u16 svc_id, 7969cbee358SKalle Valo u8 *ul_pipe, u8 *dl_pipe) 7979cbee358SKalle Valo { 7989cbee358SKalle Valo int status = 0; 7999cbee358SKalle Valo 8009cbee358SKalle Valo switch (svc_id) { 8019cbee358SKalle Valo case HTC_CTRL_RSVD_SVC: 8029cbee358SKalle Valo case WMI_CONTROL_SVC: 8039cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_CTRL; 8049cbee358SKalle Valo /* due to large control packets, shift to data pipe */ 8059cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 8069cbee358SKalle Valo break; 8079cbee358SKalle Valo case WMI_DATA_BE_SVC: 8089cbee358SKalle Valo case WMI_DATA_BK_SVC: 8099cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_LP; 8109cbee358SKalle Valo /* 8119cbee358SKalle Valo * Disable rxdata2 directly, it will be enabled 8129cbee358SKalle Valo * if FW enable rxdata2 8139cbee358SKalle Valo */ 8149cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 8159cbee358SKalle Valo break; 8169cbee358SKalle Valo case WMI_DATA_VI_SVC: 817171fe768SMohammed Shafi Shajakhan 818eba95bceSKalle Valo if (test_bit(ATH6KL_FW_CAPABILITY_MAP_LP_ENDPOINT, 819eba95bceSKalle Valo ar->fw_capabilities)) 820171fe768SMohammed Shafi Shajakhan *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_LP; 821171fe768SMohammed Shafi Shajakhan else 8229cbee358SKalle Valo *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_MP; 8239cbee358SKalle Valo /* 8249cbee358SKalle Valo * Disable rxdata2 directly, it will be enabled 8259cbee358SKalle Valo * if FW enable rxdata2 8269cbee358SKalle Valo */ 8279cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 8289cbee358SKalle Valo break; 8299cbee358SKalle Valo case WMI_DATA_VO_SVC: 830171fe768SMohammed Shafi Shajakhan 831eba95bceSKalle Valo if (test_bit(ATH6KL_FW_CAPABILITY_MAP_LP_ENDPOINT, 832eba95bceSKalle Valo ar->fw_capabilities)) 833171fe768SMohammed Shafi Shajakhan *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_LP; 834171fe768SMohammed Shafi Shajakhan else 835171fe768SMohammed Shafi Shajakhan *ul_pipe = ATH6KL_USB_PIPE_TX_DATA_MP; 8369cbee358SKalle Valo /* 8379cbee358SKalle Valo * Disable rxdata2 directly, it will be enabled 8389cbee358SKalle Valo * if FW enable rxdata2 8399cbee358SKalle Valo */ 8409cbee358SKalle Valo *dl_pipe = ATH6KL_USB_PIPE_RX_DATA; 8419cbee358SKalle Valo break; 8429cbee358SKalle Valo default: 8439cbee358SKalle Valo status = -EPERM; 8449cbee358SKalle Valo break; 8459cbee358SKalle Valo } 8469cbee358SKalle Valo 8479cbee358SKalle Valo return status; 8489cbee358SKalle Valo } 8499cbee358SKalle Valo 8509cbee358SKalle Valo static u16 ath6kl_usb_get_free_queue_number(struct ath6kl *ar, u8 pipe_id) 8519cbee358SKalle Valo { 8529cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 8539cbee358SKalle Valo 8549cbee358SKalle Valo return device->pipes[pipe_id].urb_cnt; 8559cbee358SKalle Valo } 8569cbee358SKalle Valo 8579cbee358SKalle Valo static void hif_detach_htc(struct ath6kl *ar) 8589cbee358SKalle Valo { 8599cbee358SKalle Valo struct ath6kl_usb *device = ath6kl_usb_priv(ar); 8609cbee358SKalle Valo 8619cbee358SKalle Valo ath6kl_usb_flush_all(device); 8629cbee358SKalle Valo } 8639cbee358SKalle Valo 864241b128bSKalle Valo static int ath6kl_usb_submit_ctrl_out(struct ath6kl_usb *ar_usb, 865241b128bSKalle Valo u8 req, u16 value, u16 index, void *data, 866241b128bSKalle Valo u32 size) 867241b128bSKalle Valo { 868241b128bSKalle Valo u8 *buf = NULL; 869241b128bSKalle Valo int ret; 870241b128bSKalle Valo 871241b128bSKalle Valo if (size > 0) { 872a41d9a91SAndrei Epure buf = kmemdup(data, size, GFP_KERNEL); 873241b128bSKalle Valo if (buf == NULL) 874241b128bSKalle Valo return -ENOMEM; 875241b128bSKalle Valo } 876241b128bSKalle Valo 877241b128bSKalle Valo /* note: if successful returns number of bytes transfered */ 878241b128bSKalle Valo ret = usb_control_msg(ar_usb->udev, 879241b128bSKalle Valo usb_sndctrlpipe(ar_usb->udev, 0), 880241b128bSKalle Valo req, 881241b128bSKalle Valo USB_DIR_OUT | USB_TYPE_VENDOR | 882241b128bSKalle Valo USB_RECIP_DEVICE, value, index, buf, 883241b128bSKalle Valo size, 1000); 884241b128bSKalle Valo 885241b128bSKalle Valo if (ret < 0) { 8864e1609c9SKalle Valo ath6kl_warn("Failed to submit usb control message: %d\n", ret); 8874e1609c9SKalle Valo kfree(buf); 8884e1609c9SKalle Valo return ret; 889241b128bSKalle Valo } 890241b128bSKalle Valo 891241b128bSKalle Valo kfree(buf); 892241b128bSKalle Valo 893241b128bSKalle Valo return 0; 894241b128bSKalle Valo } 895241b128bSKalle Valo 896241b128bSKalle Valo static int ath6kl_usb_submit_ctrl_in(struct ath6kl_usb *ar_usb, 897241b128bSKalle Valo u8 req, u16 value, u16 index, void *data, 898241b128bSKalle Valo u32 size) 899241b128bSKalle Valo { 900241b128bSKalle Valo u8 *buf = NULL; 901241b128bSKalle Valo int ret; 902241b128bSKalle Valo 903241b128bSKalle Valo if (size > 0) { 904241b128bSKalle Valo buf = kmalloc(size, GFP_KERNEL); 905241b128bSKalle Valo if (buf == NULL) 906241b128bSKalle Valo return -ENOMEM; 907241b128bSKalle Valo } 908241b128bSKalle Valo 909241b128bSKalle Valo /* note: if successful returns number of bytes transfered */ 910241b128bSKalle Valo ret = usb_control_msg(ar_usb->udev, 911241b128bSKalle Valo usb_rcvctrlpipe(ar_usb->udev, 0), 912241b128bSKalle Valo req, 913241b128bSKalle Valo USB_DIR_IN | USB_TYPE_VENDOR | 914241b128bSKalle Valo USB_RECIP_DEVICE, value, index, buf, 915a066d28aSJohan Hovold size, 2000); 916241b128bSKalle Valo 917241b128bSKalle Valo if (ret < 0) { 9184e1609c9SKalle Valo ath6kl_warn("Failed to read usb control message: %d\n", ret); 9194e1609c9SKalle Valo kfree(buf); 9204e1609c9SKalle Valo return ret; 921241b128bSKalle Valo } 922241b128bSKalle Valo 923241b128bSKalle Valo memcpy((u8 *) data, buf, size); 924241b128bSKalle Valo 925241b128bSKalle Valo kfree(buf); 926241b128bSKalle Valo 927241b128bSKalle Valo return 0; 928241b128bSKalle Valo } 929241b128bSKalle Valo 930241b128bSKalle Valo static int ath6kl_usb_ctrl_msg_exchange(struct ath6kl_usb *ar_usb, 931241b128bSKalle Valo u8 req_val, u8 *req_buf, u32 req_len, 932241b128bSKalle Valo u8 resp_val, u8 *resp_buf, u32 *resp_len) 933241b128bSKalle Valo { 934241b128bSKalle Valo int ret; 935241b128bSKalle Valo 936241b128bSKalle Valo /* send command */ 937241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_out(ar_usb, req_val, 0, 0, 938241b128bSKalle Valo req_buf, req_len); 939241b128bSKalle Valo 940241b128bSKalle Valo if (ret != 0) 941241b128bSKalle Valo return ret; 942241b128bSKalle Valo 943241b128bSKalle Valo if (resp_buf == NULL) { 944241b128bSKalle Valo /* no expected response */ 945241b128bSKalle Valo return ret; 946241b128bSKalle Valo } 947241b128bSKalle Valo 948241b128bSKalle Valo /* get response */ 949241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_in(ar_usb, resp_val, 0, 0, 950241b128bSKalle Valo resp_buf, *resp_len); 951241b128bSKalle Valo 952241b128bSKalle Valo return ret; 953241b128bSKalle Valo } 954241b128bSKalle Valo 955241b128bSKalle Valo static int ath6kl_usb_diag_read32(struct ath6kl *ar, u32 address, u32 *data) 956241b128bSKalle Valo { 957241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 958241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_resp_read *resp; 959241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_cmd_read *cmd; 960241b128bSKalle Valo u32 resp_len; 961241b128bSKalle Valo int ret; 962241b128bSKalle Valo 963241b128bSKalle Valo cmd = (struct ath6kl_usb_ctrl_diag_cmd_read *) ar_usb->diag_cmd_buffer; 964241b128bSKalle Valo 965241b128bSKalle Valo memset(cmd, 0, sizeof(*cmd)); 966241b128bSKalle Valo cmd->cmd = ATH6KL_USB_CTRL_DIAG_CC_READ; 967241b128bSKalle Valo cmd->address = cpu_to_le32(address); 968241b128bSKalle Valo resp_len = sizeof(*resp); 969241b128bSKalle Valo 970241b128bSKalle Valo ret = ath6kl_usb_ctrl_msg_exchange(ar_usb, 971241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_DIAG_CMD, 972241b128bSKalle Valo (u8 *) cmd, 973241b128bSKalle Valo sizeof(struct ath6kl_usb_ctrl_diag_cmd_write), 974241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_DIAG_RESP, 975241b128bSKalle Valo ar_usb->diag_resp_buffer, &resp_len); 976241b128bSKalle Valo 9774e1609c9SKalle Valo if (ret) { 9784e1609c9SKalle Valo ath6kl_warn("diag read32 failed: %d\n", ret); 979241b128bSKalle Valo return ret; 9804e1609c9SKalle Valo } 981241b128bSKalle Valo 982241b128bSKalle Valo resp = (struct ath6kl_usb_ctrl_diag_resp_read *) 983241b128bSKalle Valo ar_usb->diag_resp_buffer; 984241b128bSKalle Valo 985241b128bSKalle Valo *data = le32_to_cpu(resp->value); 986241b128bSKalle Valo 987241b128bSKalle Valo return ret; 988241b128bSKalle Valo } 989241b128bSKalle Valo 990241b128bSKalle Valo static int ath6kl_usb_diag_write32(struct ath6kl *ar, u32 address, __le32 data) 991241b128bSKalle Valo { 992241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 993241b128bSKalle Valo struct ath6kl_usb_ctrl_diag_cmd_write *cmd; 9944e1609c9SKalle Valo int ret; 995241b128bSKalle Valo 996241b128bSKalle Valo cmd = (struct ath6kl_usb_ctrl_diag_cmd_write *) ar_usb->diag_cmd_buffer; 997241b128bSKalle Valo 998241b128bSKalle Valo memset(cmd, 0, sizeof(struct ath6kl_usb_ctrl_diag_cmd_write)); 999241b128bSKalle Valo cmd->cmd = cpu_to_le32(ATH6KL_USB_CTRL_DIAG_CC_WRITE); 1000241b128bSKalle Valo cmd->address = cpu_to_le32(address); 1001241b128bSKalle Valo cmd->value = data; 1002241b128bSKalle Valo 10034e1609c9SKalle Valo ret = ath6kl_usb_ctrl_msg_exchange(ar_usb, 1004241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_DIAG_CMD, 1005241b128bSKalle Valo (u8 *) cmd, 1006241b128bSKalle Valo sizeof(*cmd), 1007241b128bSKalle Valo 0, NULL, NULL); 10084e1609c9SKalle Valo if (ret) { 10094e1609c9SKalle Valo ath6kl_warn("diag_write32 failed: %d\n", ret); 10104e1609c9SKalle Valo return ret; 10114e1609c9SKalle Valo } 1012241b128bSKalle Valo 10134e1609c9SKalle Valo return 0; 1014241b128bSKalle Valo } 1015241b128bSKalle Valo 1016241b128bSKalle Valo static int ath6kl_usb_bmi_read(struct ath6kl *ar, u8 *buf, u32 len) 1017241b128bSKalle Valo { 1018241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 1019241b128bSKalle Valo int ret; 1020241b128bSKalle Valo 1021241b128bSKalle Valo /* get response */ 1022241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_in(ar_usb, 1023241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_RECV_BMI_RESP, 1024241b128bSKalle Valo 0, 0, buf, len); 10254e1609c9SKalle Valo if (ret) { 1026241b128bSKalle Valo ath6kl_err("Unable to read the bmi data from the device: %d\n", 1027241b128bSKalle Valo ret); 1028241b128bSKalle Valo return ret; 1029241b128bSKalle Valo } 1030241b128bSKalle Valo 1031241b128bSKalle Valo return 0; 1032241b128bSKalle Valo } 1033241b128bSKalle Valo 1034241b128bSKalle Valo static int ath6kl_usb_bmi_write(struct ath6kl *ar, u8 *buf, u32 len) 1035241b128bSKalle Valo { 1036241b128bSKalle Valo struct ath6kl_usb *ar_usb = ar->hif_priv; 1037241b128bSKalle Valo int ret; 1038241b128bSKalle Valo 1039241b128bSKalle Valo /* send command */ 1040241b128bSKalle Valo ret = ath6kl_usb_submit_ctrl_out(ar_usb, 1041241b128bSKalle Valo ATH6KL_USB_CONTROL_REQ_SEND_BMI_CMD, 1042241b128bSKalle Valo 0, 0, buf, len); 10434e1609c9SKalle Valo if (ret) { 1044241b128bSKalle Valo ath6kl_err("unable to send the bmi data to the device: %d\n", 1045241b128bSKalle Valo ret); 1046241b128bSKalle Valo return ret; 1047241b128bSKalle Valo } 1048241b128bSKalle Valo 1049241b128bSKalle Valo return 0; 1050241b128bSKalle Valo } 1051241b128bSKalle Valo 1052241b128bSKalle Valo static int ath6kl_usb_power_on(struct ath6kl *ar) 1053241b128bSKalle Valo { 10549cbee358SKalle Valo hif_start(ar); 1055241b128bSKalle Valo return 0; 1056241b128bSKalle Valo } 1057241b128bSKalle Valo 1058241b128bSKalle Valo static int ath6kl_usb_power_off(struct ath6kl *ar) 1059241b128bSKalle Valo { 10609cbee358SKalle Valo hif_detach_htc(ar); 1061241b128bSKalle Valo return 0; 1062241b128bSKalle Valo } 1063241b128bSKalle Valo 10649cbee358SKalle Valo static void ath6kl_usb_stop(struct ath6kl *ar) 10659cbee358SKalle Valo { 10669cbee358SKalle Valo hif_stop(ar); 10679cbee358SKalle Valo } 10689cbee358SKalle Valo 106908c61009SRay Chen static void ath6kl_usb_cleanup_scatter(struct ath6kl *ar) 107008c61009SRay Chen { 107108c61009SRay Chen /* 107208c61009SRay Chen * USB doesn't support it. Just return. 107308c61009SRay Chen */ 107408c61009SRay Chen return; 107508c61009SRay Chen } 107608c61009SRay Chen 10778c40e4e0SMohammed Shafi Shajakhan static int ath6kl_usb_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 10788c40e4e0SMohammed Shafi Shajakhan { 10798c40e4e0SMohammed Shafi Shajakhan /* 10808c40e4e0SMohammed Shafi Shajakhan * cfg80211 suspend/WOW currently not supported for USB. 10818c40e4e0SMohammed Shafi Shajakhan */ 10828c40e4e0SMohammed Shafi Shajakhan return 0; 10838c40e4e0SMohammed Shafi Shajakhan } 10848c40e4e0SMohammed Shafi Shajakhan 10858c40e4e0SMohammed Shafi Shajakhan static int ath6kl_usb_resume(struct ath6kl *ar) 10868c40e4e0SMohammed Shafi Shajakhan { 10878c40e4e0SMohammed Shafi Shajakhan /* 10888c40e4e0SMohammed Shafi Shajakhan * cfg80211 resume currently not supported for USB. 10898c40e4e0SMohammed Shafi Shajakhan */ 10908c40e4e0SMohammed Shafi Shajakhan return 0; 10918c40e4e0SMohammed Shafi Shajakhan } 10928c40e4e0SMohammed Shafi Shajakhan 1093241b128bSKalle Valo static const struct ath6kl_hif_ops ath6kl_usb_ops = { 1094241b128bSKalle Valo .diag_read32 = ath6kl_usb_diag_read32, 1095241b128bSKalle Valo .diag_write32 = ath6kl_usb_diag_write32, 1096241b128bSKalle Valo .bmi_read = ath6kl_usb_bmi_read, 1097241b128bSKalle Valo .bmi_write = ath6kl_usb_bmi_write, 1098241b128bSKalle Valo .power_on = ath6kl_usb_power_on, 1099241b128bSKalle Valo .power_off = ath6kl_usb_power_off, 11009cbee358SKalle Valo .stop = ath6kl_usb_stop, 11019cbee358SKalle Valo .pipe_send = ath6kl_usb_send, 11029cbee358SKalle Valo .pipe_get_default = ath6kl_usb_get_default_pipe, 11039cbee358SKalle Valo .pipe_map_service = ath6kl_usb_map_service_pipe, 11049cbee358SKalle Valo .pipe_get_free_queue_number = ath6kl_usb_get_free_queue_number, 110508c61009SRay Chen .cleanup_scatter = ath6kl_usb_cleanup_scatter, 11068c40e4e0SMohammed Shafi Shajakhan .suspend = ath6kl_usb_suspend, 11078c40e4e0SMohammed Shafi Shajakhan .resume = ath6kl_usb_resume, 1108241b128bSKalle Valo }; 1109241b128bSKalle Valo 1110241b128bSKalle Valo /* ath6kl usb driver registered functions */ 1111241b128bSKalle Valo static int ath6kl_usb_probe(struct usb_interface *interface, 1112241b128bSKalle Valo const struct usb_device_id *id) 1113241b128bSKalle Valo { 1114241b128bSKalle Valo struct usb_device *dev = interface_to_usbdev(interface); 1115241b128bSKalle Valo struct ath6kl *ar; 1116241b128bSKalle Valo struct ath6kl_usb *ar_usb = NULL; 1117241b128bSKalle Valo int vendor_id, product_id; 1118241b128bSKalle Valo int ret = 0; 1119241b128bSKalle Valo 1120241b128bSKalle Valo usb_get_dev(dev); 1121241b128bSKalle Valo 1122241b128bSKalle Valo vendor_id = le16_to_cpu(dev->descriptor.idVendor); 1123241b128bSKalle Valo product_id = le16_to_cpu(dev->descriptor.idProduct); 1124241b128bSKalle Valo 1125241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "vendor_id = %04x\n", vendor_id); 1126241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "product_id = %04x\n", product_id); 1127241b128bSKalle Valo 1128241b128bSKalle Valo if (interface->cur_altsetting) 1129241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "USB Interface %d\n", 1130241b128bSKalle Valo interface->cur_altsetting->desc.bInterfaceNumber); 1131241b128bSKalle Valo 1132241b128bSKalle Valo 1133241b128bSKalle Valo if (dev->speed == USB_SPEED_HIGH) 1134241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "USB 2.0 Host\n"); 1135241b128bSKalle Valo else 1136241b128bSKalle Valo ath6kl_dbg(ATH6KL_DBG_USB, "USB 1.1 Host\n"); 1137241b128bSKalle Valo 1138241b128bSKalle Valo ar_usb = ath6kl_usb_create(interface); 1139241b128bSKalle Valo 1140241b128bSKalle Valo if (ar_usb == NULL) { 1141241b128bSKalle Valo ret = -ENOMEM; 1142241b128bSKalle Valo goto err_usb_put; 1143241b128bSKalle Valo } 1144241b128bSKalle Valo 1145241b128bSKalle Valo ar = ath6kl_core_create(&ar_usb->udev->dev); 1146241b128bSKalle Valo if (ar == NULL) { 1147241b128bSKalle Valo ath6kl_err("Failed to alloc ath6kl core\n"); 1148241b128bSKalle Valo ret = -ENOMEM; 1149241b128bSKalle Valo goto err_usb_destroy; 1150241b128bSKalle Valo } 1151241b128bSKalle Valo 1152241b128bSKalle Valo ar->hif_priv = ar_usb; 1153241b128bSKalle Valo ar->hif_type = ATH6KL_HIF_TYPE_USB; 1154241b128bSKalle Valo ar->hif_ops = &ath6kl_usb_ops; 1155241b128bSKalle Valo ar->mbox_info.block_size = 16; 1156241b128bSKalle Valo ar->bmi.max_data_size = 252; 1157241b128bSKalle Valo 1158241b128bSKalle Valo ar_usb->ar = ar; 1159241b128bSKalle Valo 11609cbee358SKalle Valo ret = ath6kl_core_init(ar, ATH6KL_HTC_TYPE_PIPE); 1161241b128bSKalle Valo if (ret) { 1162241b128bSKalle Valo ath6kl_err("Failed to init ath6kl core: %d\n", ret); 1163241b128bSKalle Valo goto err_core_free; 1164241b128bSKalle Valo } 1165241b128bSKalle Valo 1166241b128bSKalle Valo return ret; 1167241b128bSKalle Valo 1168241b128bSKalle Valo err_core_free: 1169241b128bSKalle Valo ath6kl_core_destroy(ar); 1170241b128bSKalle Valo err_usb_destroy: 1171241b128bSKalle Valo ath6kl_usb_destroy(ar_usb); 1172241b128bSKalle Valo err_usb_put: 1173241b128bSKalle Valo usb_put_dev(dev); 1174241b128bSKalle Valo 1175241b128bSKalle Valo return ret; 1176241b128bSKalle Valo } 1177241b128bSKalle Valo 1178241b128bSKalle Valo static void ath6kl_usb_remove(struct usb_interface *interface) 1179241b128bSKalle Valo { 1180241b128bSKalle Valo usb_put_dev(interface_to_usbdev(interface)); 1181241b128bSKalle Valo ath6kl_usb_device_detached(interface); 1182241b128bSKalle Valo } 1183241b128bSKalle Valo 11849cbee358SKalle Valo #ifdef CONFIG_PM 11859cbee358SKalle Valo 11860b3d3ff1SMohammed Shafi Shajakhan static int ath6kl_usb_pm_suspend(struct usb_interface *interface, 11879cbee358SKalle Valo pm_message_t message) 11889cbee358SKalle Valo { 11899cbee358SKalle Valo struct ath6kl_usb *device; 11909cbee358SKalle Valo device = usb_get_intfdata(interface); 11919cbee358SKalle Valo 11929cbee358SKalle Valo ath6kl_usb_flush_all(device); 11939cbee358SKalle Valo return 0; 11949cbee358SKalle Valo } 11959cbee358SKalle Valo 11960b3d3ff1SMohammed Shafi Shajakhan static int ath6kl_usb_pm_resume(struct usb_interface *interface) 11979cbee358SKalle Valo { 11989cbee358SKalle Valo struct ath6kl_usb *device; 11999cbee358SKalle Valo device = usb_get_intfdata(interface); 12009cbee358SKalle Valo 12019cbee358SKalle Valo ath6kl_usb_post_recv_transfers(&device->pipes[ATH6KL_USB_PIPE_RX_DATA], 12029cbee358SKalle Valo ATH6KL_USB_RX_BUFFER_SIZE); 12039cbee358SKalle Valo ath6kl_usb_post_recv_transfers(&device->pipes[ATH6KL_USB_PIPE_RX_DATA2], 12049cbee358SKalle Valo ATH6KL_USB_RX_BUFFER_SIZE); 12059cbee358SKalle Valo 12069cbee358SKalle Valo return 0; 12079cbee358SKalle Valo } 12089cbee358SKalle Valo 12099cbee358SKalle Valo #else 12109cbee358SKalle Valo 12110b3d3ff1SMohammed Shafi Shajakhan #define ath6kl_usb_pm_suspend NULL 12120b3d3ff1SMohammed Shafi Shajakhan #define ath6kl_usb_pm_resume NULL 12139cbee358SKalle Valo 12149cbee358SKalle Valo #endif 12159cbee358SKalle Valo 1216241b128bSKalle Valo /* table of devices that work with this driver */ 1217e881a658SArvind Yadav static const struct usb_device_id ath6kl_usb_ids[] = { 121878803770SJessica Wu {USB_DEVICE(0x0cf3, 0x9375)}, 1219241b128bSKalle Valo {USB_DEVICE(0x0cf3, 0x9374)}, 1220241b128bSKalle Valo { /* Terminating entry */ }, 1221241b128bSKalle Valo }; 1222241b128bSKalle Valo 1223241b128bSKalle Valo MODULE_DEVICE_TABLE(usb, ath6kl_usb_ids); 1224241b128bSKalle Valo 1225241b128bSKalle Valo static struct usb_driver ath6kl_usb_driver = { 1226241b128bSKalle Valo .name = "ath6kl_usb", 1227241b128bSKalle Valo .probe = ath6kl_usb_probe, 12280b3d3ff1SMohammed Shafi Shajakhan .suspend = ath6kl_usb_pm_suspend, 12290b3d3ff1SMohammed Shafi Shajakhan .resume = ath6kl_usb_pm_resume, 1230241b128bSKalle Valo .disconnect = ath6kl_usb_remove, 1231241b128bSKalle Valo .id_table = ath6kl_usb_ids, 12329cbee358SKalle Valo .supports_autosuspend = true, 1233e1f12eb6SSarah Sharp .disable_hub_initiated_lpm = 1, 1234241b128bSKalle Valo }; 1235241b128bSKalle Valo 123617dc0b80SHimangi Saraogi module_usb_driver(ath6kl_usb_driver); 1237241b128bSKalle Valo 1238241b128bSKalle Valo MODULE_AUTHOR("Atheros Communications, Inc."); 1239241b128bSKalle Valo MODULE_DESCRIPTION("Driver support for Atheros AR600x USB devices"); 1240241b128bSKalle Valo MODULE_LICENSE("Dual BSD/GPL"); 1241241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_0_FIRMWARE_FILE); 1242241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_0_BOARD_DATA_FILE); 1243241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE); 1244241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_1_FIRMWARE_FILE); 1245241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_1_BOARD_DATA_FILE); 1246241b128bSKalle Valo MODULE_FIRMWARE(AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE); 12476146ca69SRay Chen MODULE_FIRMWARE(AR6004_HW_1_2_FIRMWARE_FILE); 12486146ca69SRay Chen MODULE_FIRMWARE(AR6004_HW_1_2_BOARD_DATA_FILE); 12496146ca69SRay Chen MODULE_FIRMWARE(AR6004_HW_1_2_DEFAULT_BOARD_DATA_FILE); 1250bf744f11SBala Shanmugam MODULE_FIRMWARE(AR6004_HW_1_3_FW_DIR "/" AR6004_HW_1_3_FIRMWARE_FILE); 1251bf744f11SBala Shanmugam MODULE_FIRMWARE(AR6004_HW_1_3_BOARD_DATA_FILE); 1252bf744f11SBala Shanmugam MODULE_FIRMWARE(AR6004_HW_1_3_DEFAULT_BOARD_DATA_FILE); 1253