diff options
Diffstat (limited to 'bsps/shared/grlib/1553/gr1553rt.c')
-rw-r--r-- | bsps/shared/grlib/1553/gr1553rt.c | 105 |
1 files changed, 67 insertions, 38 deletions
diff --git a/bsps/shared/grlib/1553/gr1553rt.c b/bsps/shared/grlib/1553/gr1553rt.c index cea84ac338..7f35138376 100644 --- a/bsps/shared/grlib/1553/gr1553rt.c +++ b/bsps/shared/grlib/1553/gr1553rt.c @@ -159,11 +159,11 @@ static void gr1553rt_list_unreg(struct gr1553rt_list *list) static int gr1553rt_bdid(void *rt, struct gr1553rt_sw_bd *bd) { struct gr1553rt_priv *priv = rt; - + unsigned short index; /* Get Index of Software BD */ - index = ((unsigned int)bd - (unsigned int)&priv->swbds[0]) / + index = ((unsigned int)bd - (unsigned int)&priv->swbds[0]) / sizeof(struct gr1553rt_sw_bd); return index; @@ -195,10 +195,9 @@ static int gr1553rt_bd_alloc(void *rt, struct gr1553rt_sw_bd **bd, int cnt) } *bd = &priv->swbds[priv->swbd_free]; + curr = &priv->swbds[priv->swbd_free]; for (i=0; i<cnt; i++) { - if ( i == 0) { - curr = &priv->swbds[priv->swbd_free]; - } else { + if ( i != 0) { curr = &priv->swbds[curr->this_next]; } if ( curr->this_next == 0xffff ) { @@ -358,7 +357,7 @@ int gr1553rt_bd_init( bd->next = nextbd; SPIN_UNLOCK_IRQ(&priv->devlock, irqflags); - return 0; + return 0; } int gr1553rt_bd_update( @@ -733,7 +732,7 @@ void gr1553rt_hw_stop(struct gr1553rt_priv *priv) GR1553RT_WRITE_REG(&priv->regs->rt_cfg, GR1553RT_KEY); /* Stop BC if not already stopped: BC can not be used simultaneously - * as the RT anyway + * as the RT anyway */ GR1553RT_WRITE_REG(&priv->regs->bc_ctrl, GR1553BC_KEY | 0x0204); @@ -772,17 +771,17 @@ void gr1553rt_sw_free(struct gr1553rt_priv *priv) } } -/* Free dynamically allocated buffers, if any */ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) { int size; + int retval = 0; /* Allocate Event log */ if ((unsigned int)priv->cfg.evlog_buffer & 1) { /* Translate Address from HARDWARE (REMOTE) to CPU-LOCAL */ - priv->evlog_hw_base = (unsigned int *) + priv->evlog_buffer = (void *) ((unsigned int)priv->cfg.evlog_buffer & ~0x1); - priv->evlog_buffer = priv->cfg.evlog_buffer; + priv->evlog_hw_base = (unsigned int*)priv->evlog_buffer; drvmgr_translate_check( *priv->pdev, DMAMEM_TO_CPU, @@ -794,16 +793,19 @@ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) if (priv->cfg.evlog_buffer == NULL) { priv->evlog_buffer = grlib_malloc( priv->cfg.evlog_size * 2); - if (priv->evlog_buffer == NULL) - return -1; + if (priv->evlog_buffer == NULL) { + retval = -1; + goto err; + } + /* Align to SIZE bytes boundary */ + priv->evlog_cpu_base = (unsigned int *) + (((unsigned int)priv->evlog_buffer + + (priv->cfg.evlog_size-1)) & ~(priv->cfg.evlog_size-1)); } else { /* Addess already CPU-LOCAL */ priv->evlog_buffer = priv->cfg.evlog_buffer; + priv->evlog_cpu_base = (unsigned int *)priv->evlog_buffer; } - /* Align to SIZE bytes boundary */ - priv->evlog_cpu_base = (unsigned int *) - (((unsigned int)priv->evlog_buffer + - (priv->cfg.evlog_size-1)) & ~(priv->cfg.evlog_size-1)); drvmgr_translate_check( *priv->pdev, @@ -813,6 +815,11 @@ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) priv->cfg.evlog_size ); } + /* Verify alignment */ + if ((unsigned int)priv->evlog_hw_base & (priv->cfg.evlog_size-1)) { + retval = -2; + goto err; + } priv->evlog_cpu_end = priv->evlog_cpu_base + priv->cfg.evlog_size/sizeof(unsigned int *); @@ -821,9 +828,9 @@ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) size = priv->bds_cnt * sizeof(struct gr1553rt_bd); if ((unsigned int)priv->cfg.bd_buffer & 1) { /* Translate Address from HARDWARE (REMOTE) to CPU-LOCAL */ - priv->bds_hw = (struct gr1553rt_bd *) + priv->bd_buffer = (void *) ((unsigned int)priv->cfg.bd_buffer & ~0x1); - priv->bd_buffer = priv->cfg.bd_buffer; + priv->bds_hw = (struct gr1553rt_bd *)priv->bd_buffer; drvmgr_translate_check( *priv->pdev, DMAMEM_TO_CPU, @@ -834,15 +841,18 @@ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) } else { if ( priv->cfg.bd_buffer == NULL ) { priv->bd_buffer = grlib_malloc(size + 0xf); - if (priv->bd_buffer == NULL) - return -1; + if (priv->bd_buffer == NULL) { + retval = -1; + goto err; + } + /* Align to 16 bytes boundary */ + priv->bds_cpu = (struct gr1553rt_bd *) + (((unsigned int)priv->bd_buffer + 0xf) & ~0xf); } else { /* Addess already CPU-LOCAL */ priv->bd_buffer = priv->cfg.bd_buffer; + priv->bds_cpu = (struct gr1553rt_bd *)priv->bd_buffer; } - /* Align to 16 bytes boundary */ - priv->bds_cpu = (struct gr1553rt_bd *) - (((unsigned int)priv->bd_buffer + 0xf) & ~0xf); /* Translate from CPU address to hardware address */ drvmgr_translate_check( @@ -853,21 +863,28 @@ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) size ); } + /* Verify alignment */ + if ((unsigned int)priv->bds_hw & (0xf)) { + retval = -2; + goto err; + } #if (RTBD_MAX == 0) /* Allocate software description of */ priv->swbds = grlib_malloc(priv->cfg.bd_count * sizeof(*priv->swbds)); if ( priv->swbds == NULL ) { - return -1; + retval = -1; + goto err; } #endif /* Allocate Sub address table */ if ((unsigned int)priv->cfg.satab_buffer & 1) { /* Translate Address from HARDWARE (REMOTE) to CPU-LOCAL */ - priv->sas_hw = (struct gr1553rt_sa *) + priv->satab_buffer = (void *) ((unsigned int)priv->cfg.satab_buffer & ~0x1); - priv->satab_buffer = priv->cfg.satab_buffer; + priv->sas_hw = (struct gr1553rt_sa *)priv->satab_buffer; + drvmgr_translate_check( *priv->pdev, DMAMEM_TO_CPU, @@ -877,16 +894,18 @@ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) } else { if (priv->cfg.satab_buffer == NULL) { priv->satab_buffer = grlib_malloc((16 * 32) * 2); - if (priv->satab_buffer == NULL) - return -1; + if (priv->satab_buffer == NULL) { + retval = -1; + goto err; + } + /* Align to 512 bytes boundary */ + priv->sas_cpu = (struct gr1553rt_sa *) + (((unsigned int)priv->satab_buffer + 0x1ff) & ~0x1ff); } else { /* Addess already CPU-LOCAL */ priv->satab_buffer = priv->cfg.satab_buffer; + priv->sas_cpu = (struct gr1553rt_sa *)priv->satab_buffer; } - /* Align to 512 bytes boundary */ - priv->sas_cpu = (struct gr1553rt_sa *) - (((unsigned int)priv->satab_buffer + 0x1ff) & - ~0x1ff); /* Translate Address from CPU-LOCAL to HARDWARE (REMOTE) */ drvmgr_translate_check( @@ -896,8 +915,17 @@ static int gr1553rt_sw_alloc(struct gr1553rt_priv *priv) (void **)&priv->sas_hw, 16 * 32); } + /* Verify alignment */ + if ((unsigned int)priv->sas_hw & (0x1ff)) { + retval = -2; + goto err; + } - return 0; +err: + if (retval) { + gr1553rt_sw_free(priv); + } + return retval; } void gr1553rt_sw_init(struct gr1553rt_priv *priv) @@ -943,7 +971,7 @@ void gr1553rt_sw_init(struct gr1553rt_priv *priv) int gr1553rt_config(void *rt, struct gr1553rt_cfg *cfg) { struct gr1553rt_priv *priv = rt; - + int retval = 0; if ( priv->started ) return -1; @@ -955,9 +983,9 @@ int gr1553rt_config(void *rt, struct gr1553rt_cfg *cfg) if ( cfg->rtaddress > 30 ) return -1; if ( (cfg->evlog_size & (cfg->evlog_size-1)) != 0) - return -1; /* SIZE: Not aligned to a power of 2 */ + return -2; /* SIZE: Not aligned to a power of 2 */ if ( ((unsigned int)priv->cfg.evlog_buffer & (cfg->evlog_size-1)) != 0 ) - return -1; /* Buffer: Not aligned to size */ + return -2; /* Buffer: Not aligned to size */ #if (RTBD_MAX > 0) if ( cfg->bd_count > RTBD_MAX ) return -1; @@ -968,8 +996,9 @@ int gr1553rt_config(void *rt, struct gr1553rt_cfg *cfg) /*** Adapt to new config ***/ - if ( gr1553rt_sw_alloc(priv) != 0 ) - return -1; + if ( (retval=gr1553rt_sw_alloc(priv)) != 0 ) { + return retval; + } gr1553rt_sw_init(priv); |