diff options
author | Mike Frysinger <vapier.adi@gmail.com> | 2009-02-06 18:12:35 +0800 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-02-06 12:07:39 +0000 |
commit | 8836c273e4d44d088157b7ccbd2c108cefe70565 (patch) | |
tree | d77775a17e501c8e0170c31c22c69bb6bd1a1d21 /sound/soc/blackfin/bf5xx-sport.c | |
parent | 92a950ff2b7091a735c32a6e57b8136650bc7812 (diff) | |
download | op-kernel-dev-8836c273e4d44d088157b7ccbd2c108cefe70565.zip op-kernel-dev-8836c273e4d44d088157b7ccbd2c108cefe70565.tar.gz |
ASoC: Blackfin: drop unnecessary dma casts
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/blackfin/bf5xx-sport.c')
-rw-r--r-- | sound/soc/blackfin/bf5xx-sport.c | 104 |
1 files changed, 43 insertions, 61 deletions
diff --git a/sound/soc/blackfin/bf5xx-sport.c b/sound/soc/blackfin/bf5xx-sport.c index 3b99e48..b7953c8 100644 --- a/sound/soc/blackfin/bf5xx-sport.c +++ b/sound/soc/blackfin/bf5xx-sport.c @@ -133,7 +133,7 @@ static void setup_desc(struct dmasg *desc, void *buf, int fragcount, int i; for (i = 0; i < fragcount; ++i) { - desc[i].next_desc_addr = (unsigned long)&(desc[i + 1]); + desc[i].next_desc_addr = &(desc[i + 1]); desc[i].start_addr = (unsigned long)buf + i*fragsize; desc[i].cfg = cfg; desc[i].x_count = x_count; @@ -143,12 +143,12 @@ static void setup_desc(struct dmasg *desc, void *buf, int fragcount, } /* make circular */ - desc[fragcount-1].next_desc_addr = (unsigned long)desc; + desc[fragcount-1].next_desc_addr = desc; - pr_debug("setup desc: desc0=%p, next0=%lx, desc1=%p," - "next1=%lx\nx_count=%x,y_count=%x,addr=0x%lx,cfs=0x%x\n", - &(desc[0]), desc[0].next_desc_addr, - &(desc[1]), desc[1].next_desc_addr, + pr_debug("setup desc: desc0=%p, next0=%p, desc1=%p," + "next1=%p\nx_count=%x,y_count=%x,addr=0x%lx,cfs=0x%x\n", + desc, desc[0].next_desc_addr, + desc+1, desc[1].next_desc_addr, desc[0].x_count, desc[0].y_count, desc[0].start_addr, desc[0].cfg); } @@ -184,22 +184,20 @@ static inline int sport_hook_rx_dummy(struct sport_device *sport) BUG_ON(sport->curr_rx_desc == sport->dummy_rx_desc); /* Maybe the dummy buffer descriptor ring is damaged */ - sport->dummy_rx_desc->next_desc_addr = \ - (unsigned long)(sport->dummy_rx_desc+1); + sport->dummy_rx_desc->next_desc_addr = sport->dummy_rx_desc + 1; local_irq_save(flags); - desc = (struct dmasg *)get_dma_next_desc_ptr(sport->dma_rx_chan); + desc = get_dma_next_desc_ptr(sport->dma_rx_chan); /* Copy the descriptor which will be damaged to backup */ temp_desc = *desc; desc->x_count = 0xa; desc->y_count = 0; - desc->next_desc_addr = (unsigned long)(sport->dummy_rx_desc); + desc->next_desc_addr = sport->dummy_rx_desc; local_irq_restore(flags); /* Waiting for dummy buffer descriptor is already hooked*/ while ((get_dma_curr_desc_ptr(sport->dma_rx_chan) - - sizeof(struct dmasg)) != - (unsigned long)sport->dummy_rx_desc) - ; + sizeof(struct dmasg)) != sport->dummy_rx_desc) + continue; sport->curr_rx_desc = sport->dummy_rx_desc; /* Restore the damaged descriptor */ *desc = temp_desc; @@ -210,14 +208,12 @@ static inline int sport_hook_rx_dummy(struct sport_device *sport) static inline int sport_rx_dma_start(struct sport_device *sport, int dummy) { if (dummy) { - sport->dummy_rx_desc->next_desc_addr = \ - (unsigned long) sport->dummy_rx_desc; + sport->dummy_rx_desc->next_desc_addr = sport->dummy_rx_desc; sport->curr_rx_desc = sport->dummy_rx_desc; } else sport->curr_rx_desc = sport->dma_rx_desc; - set_dma_next_desc_addr(sport->dma_rx_chan, \ - (unsigned long)(sport->curr_rx_desc)); + set_dma_next_desc_addr(sport->dma_rx_chan, sport->curr_rx_desc); set_dma_x_count(sport->dma_rx_chan, 0); set_dma_x_modify(sport->dma_rx_chan, 0); set_dma_config(sport->dma_rx_chan, (DMAFLOW_LARGE | NDSIZE_9 | \ @@ -231,14 +227,12 @@ static inline int sport_rx_dma_start(struct sport_device *sport, int dummy) static inline int sport_tx_dma_start(struct sport_device *sport, int dummy) { if (dummy) { - sport->dummy_tx_desc->next_desc_addr = \ - (unsigned long) sport->dummy_tx_desc; + sport->dummy_tx_desc->next_desc_addr = sport->dummy_tx_desc; sport->curr_tx_desc = sport->dummy_tx_desc; } else sport->curr_tx_desc = sport->dma_tx_desc; - set_dma_next_desc_addr(sport->dma_tx_chan, \ - (unsigned long)(sport->curr_tx_desc)); + set_dma_next_desc_addr(sport->dma_tx_chan, sport->curr_tx_desc); set_dma_x_count(sport->dma_tx_chan, 0); set_dma_x_modify(sport->dma_tx_chan, 0); set_dma_config(sport->dma_tx_chan, @@ -261,11 +255,9 @@ int sport_rx_start(struct sport_device *sport) BUG_ON(sport->curr_rx_desc != sport->dummy_rx_desc); local_irq_save(flags); while ((get_dma_curr_desc_ptr(sport->dma_rx_chan) - - sizeof(struct dmasg)) != - (unsigned long)sport->dummy_rx_desc) - ; - sport->dummy_rx_desc->next_desc_addr = - (unsigned long)(sport->dma_rx_desc); + sizeof(struct dmasg)) != sport->dummy_rx_desc) + continue; + sport->dummy_rx_desc->next_desc_addr = sport->dma_rx_desc; local_irq_restore(flags); sport->curr_rx_desc = sport->dma_rx_desc; } else { @@ -310,23 +302,21 @@ static inline int sport_hook_tx_dummy(struct sport_device *sport) BUG_ON(sport->dummy_tx_desc == NULL); BUG_ON(sport->curr_tx_desc == sport->dummy_tx_desc); - sport->dummy_tx_desc->next_desc_addr = \ - (unsigned long)(sport->dummy_tx_desc+1); + sport->dummy_tx_desc->next_desc_addr = sport->dummy_tx_desc + 1; /* Shorten the time on last normal descriptor */ local_irq_save(flags); - desc = (struct dmasg *)get_dma_next_desc_ptr(sport->dma_tx_chan); + desc = get_dma_next_desc_ptr(sport->dma_tx_chan); /* Store the descriptor which will be damaged */ temp_desc = *desc; desc->x_count = 0xa; desc->y_count = 0; - desc->next_desc_addr = (unsigned long)(sport->dummy_tx_desc); + desc->next_desc_addr = sport->dummy_tx_desc; local_irq_restore(flags); /* Waiting for dummy buffer descriptor is already hooked*/ while ((get_dma_curr_desc_ptr(sport->dma_tx_chan) - \ - sizeof(struct dmasg)) != \ - (unsigned long)sport->dummy_tx_desc) - ; + sizeof(struct dmasg)) != sport->dummy_tx_desc) + continue; sport->curr_tx_desc = sport->dummy_tx_desc; /* Restore the damaged descriptor */ *desc = temp_desc; @@ -347,11 +337,9 @@ int sport_tx_start(struct sport_device *sport) /* Hook the normal buffer descriptor */ local_irq_save(flags); while ((get_dma_curr_desc_ptr(sport->dma_tx_chan) - - sizeof(struct dmasg)) != - (unsigned long)sport->dummy_tx_desc) - ; - sport->dummy_tx_desc->next_desc_addr = - (unsigned long)(sport->dma_tx_desc); + sizeof(struct dmasg)) != sport->dummy_tx_desc) + continue; + sport->dummy_tx_desc->next_desc_addr = sport->dma_tx_desc; local_irq_restore(flags); sport->curr_tx_desc = sport->dma_tx_desc; } else { @@ -536,19 +524,17 @@ static int sport_config_rx_dummy(struct sport_device *sport) unsigned config; pr_debug("%s entered\n", __func__); -#if L1_DATA_A_LENGTH != 0 - desc = (struct dmasg *) l1_data_sram_alloc(2 * sizeof(*desc)); -#else - { + if (L1_DATA_A_LENGTH) + desc = l1_data_sram_zalloc(2 * sizeof(*desc)); + else { dma_addr_t addr; desc = dma_alloc_coherent(NULL, 2 * sizeof(*desc), &addr, 0); + memset(desc, 0, 2 * sizeof(*desc)); } -#endif if (desc == NULL) { pr_err("Failed to allocate memory for dummy rx desc\n"); return -ENOMEM; } - memset(desc, 0, 2 * sizeof(*desc)); sport->dummy_rx_desc = desc; desc->start_addr = (unsigned long)sport->dummy_buf; config = DMAFLOW_LARGE | NDSIZE_9 | compute_wdsize(sport->wdsize) @@ -559,8 +545,8 @@ static int sport_config_rx_dummy(struct sport_device *sport) desc->y_count = 0; desc->y_modify = 0; memcpy(desc+1, desc, sizeof(*desc)); - desc->next_desc_addr = (unsigned long)(desc+1); - desc[1].next_desc_addr = (unsigned long)desc; + desc->next_desc_addr = desc + 1; + desc[1].next_desc_addr = desc; return 0; } @@ -571,19 +557,17 @@ static int sport_config_tx_dummy(struct sport_device *sport) pr_debug("%s entered\n", __func__); -#if L1_DATA_A_LENGTH != 0 - desc = (struct dmasg *) l1_data_sram_alloc(2 * sizeof(*desc)); -#else - { + if (L1_DATA_A_LENGTH) + desc = l1_data_sram_zalloc(2 * sizeof(*desc)); + else { dma_addr_t addr; desc = dma_alloc_coherent(NULL, 2 * sizeof(*desc), &addr, 0); + memset(desc, 0, 2 * sizeof(*desc)); } -#endif if (!desc) { pr_err("Failed to allocate memory for dummy tx desc\n"); return -ENOMEM; } - memset(desc, 0, 2 * sizeof(*desc)); sport->dummy_tx_desc = desc; desc->start_addr = (unsigned long)sport->dummy_buf + \ sport->dummy_count; @@ -595,8 +579,8 @@ static int sport_config_tx_dummy(struct sport_device *sport) desc->y_count = 0; desc->y_modify = 0; memcpy(desc+1, desc, sizeof(*desc)); - desc->next_desc_addr = (unsigned long)(desc+1); - desc[1].next_desc_addr = (unsigned long)desc; + desc->next_desc_addr = desc + 1; + desc[1].next_desc_addr = desc; return 0; } @@ -872,17 +856,15 @@ struct sport_device *sport_init(struct sport_param *param, unsigned wdsize, sport->wdsize = wdsize; sport->dummy_count = dummy_count; -#if L1_DATA_A_LENGTH != 0 - sport->dummy_buf = l1_data_sram_alloc(dummy_count * 2); -#else - sport->dummy_buf = kmalloc(dummy_count * 2, GFP_KERNEL); -#endif + if (L1_DATA_A_LENGTH) + sport->dummy_buf = l1_data_sram_zalloc(dummy_count * 2); + else + sport->dummy_buf = kzalloc(dummy_count * 2, GFP_KERNEL); if (sport->dummy_buf == NULL) { pr_err("Failed to allocate dummy buffer\n"); goto __error; } - memset(sport->dummy_buf, 0, dummy_count * 2); ret = sport_config_rx_dummy(sport); if (ret) { pr_err("Failed to config rx dummy ring\n"); @@ -939,6 +921,7 @@ void sport_done(struct sport_device *sport) sport = NULL; } EXPORT_SYMBOL(sport_done); + /* * It is only used to send several bytes when dma is not enabled * sport controller is configured but not enabled. @@ -1029,4 +1012,3 @@ EXPORT_SYMBOL(sport_send_and_recv); MODULE_AUTHOR("Roy Huang"); MODULE_DESCRIPTION("SPORT driver for ADI Blackfin"); MODULE_LICENSE("GPL"); - |