diff options
Diffstat (limited to 'drivers/staging/csr/os.c')
| -rw-r--r-- | drivers/staging/csr/os.c | 477 |
1 files changed, 0 insertions, 477 deletions
diff --git a/drivers/staging/csr/os.c b/drivers/staging/csr/os.c deleted file mode 100644 index 37ec59df3581..000000000000 --- a/drivers/staging/csr/os.c +++ /dev/null @@ -1,477 +0,0 @@ -/* - * --------------------------------------------------------------------------- - * FILE: os.c - * - * PURPOSE: - * Routines to fulfil the OS-abstraction for the HIP lib. - * It is part of the porting exercise. - * - * Copyright (C) 2005-2009 by Cambridge Silicon Radio Ltd. - * - * Refer to LICENSE.txt included with this source code for details on - * the license terms. - * - * --------------------------------------------------------------------------- - */ - -/** - * The HIP lib OS abstraction consists of the implementation - * of the functions in this file. It is part of the porting exercise. - */ - -#include "unifi_priv.h" - - -/* - * --------------------------------------------------------------------------- - * unifi_net_data_malloc - * - * Allocate an OS specific net data buffer of "size" bytes. - * The bulk_data_slot.os_data_ptr must be initialised to point - * to the buffer allocated. The bulk_data_slot.length must be - * initialised to the requested size, zero otherwise. - * The bulk_data_slot.os_net_buf_ptr can be initialised to - * an OS specific pointer to be used in the unifi_net_data_free(). - * - * - * Arguments: - * ospriv Pointer to device private context struct. - * bulk_data_slot Pointer to the bulk data structure to initialise. - * size Size of the buffer to be allocated. - * - * Returns: - * CSR_RESULT_SUCCESS on success, CSR_RESULT_FAILURE otherwise. - * --------------------------------------------------------------------------- - */ -CsrResult -unifi_net_data_malloc(void *ospriv, bulk_data_desc_t *bulk_data_slot, unsigned int size) -{ - struct sk_buff *skb; - unifi_priv_t *priv = (unifi_priv_t*)ospriv; - int rounded_length; - - if (priv->card_info.sdio_block_size == 0) { - unifi_error(priv, "unifi_net_data_malloc: Invalid SDIO block size\n"); - return CSR_RESULT_FAILURE; - } - - rounded_length = (size + priv->card_info.sdio_block_size - 1) & ~(priv->card_info.sdio_block_size - 1); - - /* - * (ETH_HLEN + 2) bytes tailroom for header manipulation - * CSR_WIFI_ALIGN_BYTES bytes headroom for alignment manipulation - */ - skb = dev_alloc_skb(rounded_length + 2 + ETH_HLEN + CSR_WIFI_ALIGN_BYTES); - if (! skb) { - unifi_error(ospriv, "alloc_skb failed.\n"); - bulk_data_slot->os_net_buf_ptr = NULL; - bulk_data_slot->net_buf_length = 0; - bulk_data_slot->os_data_ptr = NULL; - bulk_data_slot->data_length = 0; - return CSR_RESULT_FAILURE; - } - - bulk_data_slot->os_net_buf_ptr = (const unsigned char*)skb; - bulk_data_slot->net_buf_length = rounded_length + 2 + ETH_HLEN + CSR_WIFI_ALIGN_BYTES; - bulk_data_slot->os_data_ptr = (const void*)skb->data; - bulk_data_slot->data_length = size; - - return CSR_RESULT_SUCCESS; -} /* unifi_net_data_malloc() */ - -/* - * --------------------------------------------------------------------------- - * unifi_net_data_free - * - * Free an OS specific net data buffer. - * The bulk_data_slot.length must be initialised to 0. - * - * - * Arguments: - * ospriv Pointer to device private context struct. - * bulk_data_slot Pointer to the bulk data structure that - * holds the data to be freed. - * - * Returns: - * None. - * --------------------------------------------------------------------------- - */ -void -unifi_net_data_free(void *ospriv, bulk_data_desc_t *bulk_data_slot) -{ - struct sk_buff *skb; - CSR_UNUSED(ospriv); - - skb = (struct sk_buff *)bulk_data_slot->os_net_buf_ptr; - dev_kfree_skb(skb); - - bulk_data_slot->net_buf_length = 0; - bulk_data_slot->data_length = 0; - bulk_data_slot->os_data_ptr = bulk_data_slot->os_net_buf_ptr = NULL; - -} /* unifi_net_data_free() */ - - -/* -* --------------------------------------------------------------------------- -* unifi_net_dma_align -* -* DMA align an OS specific net data buffer. -* The buffer must be empty. -* -* -* Arguments: -* ospriv Pointer to device private context struct. -* bulk_data_slot Pointer to the bulk data structure that -* holds the data to be aligned. -* -* Returns: -* None. -* --------------------------------------------------------------------------- -*/ -CsrResult -unifi_net_dma_align(void *ospriv, bulk_data_desc_t *bulk_data_slot) -{ - struct sk_buff *skb; - unsigned long buf_address; - int offset; - unifi_priv_t *priv = (unifi_priv_t*)ospriv; - - if ((bulk_data_slot == NULL) || (CSR_WIFI_ALIGN_BYTES == 0)) { - return CSR_RESULT_SUCCESS; - } - - if ((bulk_data_slot->os_data_ptr == NULL) || (bulk_data_slot->data_length == 0)) { - return CSR_RESULT_SUCCESS; - } - - buf_address = (unsigned long)(bulk_data_slot->os_data_ptr) & (CSR_WIFI_ALIGN_BYTES - 1); - - unifi_trace(priv, UDBG5, - "unifi_net_dma_align: Allign buffer (0x%p) by %d bytes\n", - bulk_data_slot->os_data_ptr, buf_address); - - offset = CSR_WIFI_ALIGN_BYTES - buf_address; - if (offset < 0) { - unifi_error(priv, "unifi_net_dma_align: Failed (offset=%d)\n", offset); - return CSR_RESULT_FAILURE; - } - - skb = (struct sk_buff*)(bulk_data_slot->os_net_buf_ptr); - skb_reserve(skb, offset); - bulk_data_slot->os_net_buf_ptr = (const unsigned char*)skb; - bulk_data_slot->os_data_ptr = (const void*)(skb->data); - - return CSR_RESULT_SUCCESS; - -} /* unifi_net_dma_align() */ - -#ifdef ANDROID_TIMESTAMP -static volatile unsigned int printk_cpu = UINT_MAX; -char tbuf[30]; - -char* print_time(void ) -{ - unsigned long long t; - unsigned long nanosec_rem; - - t = cpu_clock(printk_cpu); - nanosec_rem = do_div(t, 1000000000); - sprintf(tbuf, "[%5lu.%06lu] ", - (unsigned long) t, - nanosec_rem / 1000); - - return tbuf; -} -#endif - - -/* Module parameters */ -extern int unifi_debug; - -#ifdef UNIFI_DEBUG -#define DEBUG_BUFFER_SIZE 120 - -#define FORMAT_TRACE(_s, _len, _args, _fmt) \ - do { \ - va_start(_args, _fmt); \ - _len += vsnprintf(&(_s)[_len], \ - (DEBUG_BUFFER_SIZE - _len), \ - _fmt, _args); \ - va_end(_args); \ - if (_len >= DEBUG_BUFFER_SIZE) { \ - (_s)[DEBUG_BUFFER_SIZE - 2] = '\n'; \ - (_s)[DEBUG_BUFFER_SIZE - 1] = 0; \ - } \ - } while (0) - -void -unifi_error(void* ospriv, const char *fmt, ...) -{ - unifi_priv_t *priv = (unifi_priv_t*) ospriv; - char s[DEBUG_BUFFER_SIZE]; - va_list args; - unsigned int len; -#ifdef ANDROID_TIMESTAMP - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi%d: ", print_time(), priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi: ", print_time()); - } -#else - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi%d: ", priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi: "); - } -#endif /* ANDROID_TIMESTAMP */ - FORMAT_TRACE(s, len, args, fmt); - - printk("%s", s); -} - -void -unifi_warning(void* ospriv, const char *fmt, ...) -{ - unifi_priv_t *priv = (unifi_priv_t*) ospriv; - char s[DEBUG_BUFFER_SIZE]; - va_list args; - unsigned int len; - -#ifdef ANDROID_TIMESTAMP - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "%s unifi%d: ", print_time(), priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "%s unifi: ", print_time()); - } -#else - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "unifi%d: ", priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_WARNING "unifi: "); - } -#endif /* ANDROID_TIMESTAMP */ - - FORMAT_TRACE(s, len, args, fmt); - - printk("%s", s); -} - - -void -unifi_notice(void* ospriv, const char *fmt, ...) -{ - unifi_priv_t *priv = (unifi_priv_t*) ospriv; - char s[DEBUG_BUFFER_SIZE]; - va_list args; - unsigned int len; - -#ifdef ANDROID_TIMESTAMP - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "%s unifi%d: ", print_time(), priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "%s unifi: ", print_time()); - } -#else - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "unifi%d: ", priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_NOTICE "unifi: "); - } -#endif /* ANDROID_TIMESTAMP */ - - FORMAT_TRACE(s, len, args, fmt); - - printk("%s", s); -} - - -void -unifi_info(void* ospriv, const char *fmt, ...) -{ - unifi_priv_t *priv = (unifi_priv_t*) ospriv; - char s[DEBUG_BUFFER_SIZE]; - va_list args; - unsigned int len; - -#ifdef ANDROID_TIMESTAMP - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "%s unifi%d: ", print_time(), priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "%s unifi: ", print_time()); - } -#else - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "unifi%d: ", priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_INFO "unifi: "); - } -#endif /* ANDROID_TIMESTAMP */ - - FORMAT_TRACE(s, len, args, fmt); - - printk("%s", s); -} - -/* debugging */ -void -unifi_trace(void* ospriv, int level, const char *fmt, ...) -{ - unifi_priv_t *priv = (unifi_priv_t*) ospriv; - char s[DEBUG_BUFFER_SIZE]; - va_list args; - unsigned int len; - - if (unifi_debug >= level) { -#ifdef ANDROID_TIMESTAMP - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi%d: ", print_time(), priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "%s unifi: ", print_time()); - } -#else - if (priv != NULL) { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi%d: ", priv->instance); - } else { - len = snprintf(s, DEBUG_BUFFER_SIZE, KERN_ERR "unifi: "); - } -#endif /* ANDROID_TIMESTAMP */ - - FORMAT_TRACE(s, len, args, fmt); - - printk("%s", s); - } -} - -#else - -void -unifi_error_nop(void* ospriv, const char *fmt, ...) -{ -} - -void -unifi_trace_nop(void* ospriv, int level, const char *fmt, ...) -{ -} - -#endif /* UNIFI_DEBUG */ - - -/* - * --------------------------------------------------------------------------- - * - * Debugging support. - * - * --------------------------------------------------------------------------- - */ - -#ifdef UNIFI_DEBUG - -/* Memory dump with level filter controlled by unifi_debug */ -void -unifi_dump(void *ospriv, int level, const char *msg, void *mem, u16 len) -{ - unifi_priv_t *priv = (unifi_priv_t*) ospriv; - - if (unifi_debug >= level) { -#ifdef ANDROID_TIMESTAMP - if (priv != NULL) { - printk(KERN_ERR "%s unifi%d: --- dump: %s ---\n", print_time(), priv->instance, msg ? msg : ""); - } else { - printk(KERN_ERR "%s unifi: --- dump: %s ---\n", print_time(), msg ? msg : ""); - } -#else - if (priv != NULL) { - printk(KERN_ERR "unifi%d: --- dump: %s ---\n", priv->instance, msg ? msg : ""); - } else { - printk(KERN_ERR "unifi: --- dump: %s ---\n", msg ? msg : ""); - } -#endif /* ANDROID_TIMESTAMP */ - dump(mem, len); - - if (priv != NULL) { - printk(KERN_ERR "unifi%d: --- end of dump ---\n", priv->instance); - } else { - printk(KERN_ERR "unifi: --- end of dump ---\n"); - } - } -} - -/* Memory dump that appears all the time, use sparingly */ -void -dump(void *mem, u16 len) -{ - int i, col = 0; - unsigned char *pdata = (unsigned char *)mem; -#ifdef ANDROID_TIMESTAMP - printk("timestamp %s \n", print_time()); -#endif /* ANDROID_TIMESTAMP */ - if (mem == NULL) { - printk("(null dump)\n"); - return; - } - for (i = 0; i < len; i++) { - if (col == 0) - printk("0x%02X: ", i); - - printk(" %02X", pdata[i]); - - if (++col == 16) { - printk("\n"); - col = 0; - } - } - if (col) - printk("\n"); -} /* dump() */ - - -void -dump16(void *mem, u16 len) -{ - int i, col=0; - unsigned short *p = (unsigned short *)mem; -#ifdef ANDROID_TIMESTAMP - printk("timestamp %s \n", print_time()); -#endif /* ANDROID_TIMESTAMP */ - for (i = 0; i < len; i+=2) { - if (col == 0) - printk("0x%02X: ", i); - - printk(" %04X", *p++); - - if (++col == 8) { - printk("\n"); - col = 0; - } - } - if (col) - printk("\n"); -} - - -#ifdef CSR_WIFI_HIP_DEBUG_OFFLINE -void -dump_str(void *mem, u16 len) -{ - int i; - unsigned char *pdata = (unsigned char *)mem; -#ifdef ANDROID_TIMESTAMP - printk("timestamp %s \n", print_time()); -#endif /* ANDROID_TIMESTAMP */ - for (i = 0; i < len; i++) { - printk("%c", pdata[i]); - } - printk("\n"); - -} /* dump_str() */ -#endif /* CSR_ONLY_NOTES */ - - -#endif /* UNIFI_DEBUG */ - - -/* --------------------------------------------------------------------------- - * - End - - * ------------------------------------------------------------------------- */ |