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path: root/drivers/mmc/host/tifm_sd.c
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Diffstat (limited to 'drivers/mmc/host/tifm_sd.c')
-rw-r--r--drivers/mmc/host/tifm_sd.c108
1 files changed, 54 insertions, 54 deletions
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index 8b736e96844..d1760ebcac0 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -16,13 +16,14 @@
#include <linux/mmc/host.h>
#include <linux/highmem.h>
#include <linux/scatterlist.h>
+#include <linux/module.h>
#include <asm/io.h>
#define DRIVER_NAME "tifm_sd"
#define DRIVER_VERSION "0.8"
-static int no_dma = 0;
-static int fixed_timeout = 0;
+static bool no_dma = 0;
+static bool fixed_timeout = 0;
module_param(no_dma, bool, 0644);
module_param(fixed_timeout, bool, 0644);
@@ -117,7 +118,7 @@ static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg,
unsigned char *buf;
unsigned int pos = 0, val;
- buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + off;
+ buf = kmap_atomic(pg) + off;
if (host->cmd_flags & DATA_CARRY) {
buf[pos++] = host->bounce_buf_data[0];
host->cmd_flags &= ~DATA_CARRY;
@@ -133,7 +134,7 @@ static void tifm_sd_read_fifo(struct tifm_sd *host, struct page *pg,
}
buf[pos++] = (val >> 8) & 0xff;
}
- kunmap_atomic(buf - off, KM_BIO_DST_IRQ);
+ kunmap_atomic(buf - off);
}
static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
@@ -143,7 +144,7 @@ static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
unsigned char *buf;
unsigned int pos = 0, val;
- buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + off;
+ buf = kmap_atomic(pg) + off;
if (host->cmd_flags & DATA_CARRY) {
val = host->bounce_buf_data[0] | ((buf[pos++] << 8) & 0xff00);
writel(val, sock->addr + SOCK_MMCSD_DATA);
@@ -160,7 +161,7 @@ static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
val |= (buf[pos++] << 8) & 0xff00;
writel(val, sock->addr + SOCK_MMCSD_DATA);
}
- kunmap_atomic(buf - off, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buf - off);
}
static void tifm_sd_transfer_data(struct tifm_sd *host)
@@ -180,7 +181,7 @@ static void tifm_sd_transfer_data(struct tifm_sd *host)
host->sg_pos++;
if (host->sg_pos == host->sg_len) {
if ((r_data->flags & MMC_DATA_WRITE)
- && DATA_CARRY)
+ && (host->cmd_flags & DATA_CARRY))
writel(host->bounce_buf_data[0],
host->dev->addr
+ SOCK_MMCSD_DATA);
@@ -191,7 +192,7 @@ static void tifm_sd_transfer_data(struct tifm_sd *host)
}
off = sg[host->sg_pos].offset + host->block_pos;
- pg = nth_page(sg[host->sg_pos].page, off >> PAGE_SHIFT);
+ pg = nth_page(sg_page(&sg[host->sg_pos]), off >> PAGE_SHIFT);
p_off = offset_in_page(off);
p_cnt = PAGE_SIZE - p_off;
p_cnt = min(p_cnt, cnt);
@@ -211,13 +212,13 @@ static void tifm_sd_copy_page(struct page *dst, unsigned int dst_off,
struct page *src, unsigned int src_off,
unsigned int count)
{
- unsigned char *src_buf = kmap_atomic(src, KM_BIO_SRC_IRQ) + src_off;
- unsigned char *dst_buf = kmap_atomic(dst, KM_BIO_DST_IRQ) + dst_off;
+ unsigned char *src_buf = kmap_atomic(src) + src_off;
+ unsigned char *dst_buf = kmap_atomic(dst) + dst_off;
memcpy(dst_buf, src_buf, count);
- kunmap_atomic(dst_buf - dst_off, KM_BIO_DST_IRQ);
- kunmap_atomic(src_buf - src_off, KM_BIO_SRC_IRQ);
+ kunmap_atomic(dst_buf - dst_off);
+ kunmap_atomic(src_buf - src_off);
}
static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data)
@@ -240,18 +241,18 @@ static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data)
}
off = sg[host->sg_pos].offset + host->block_pos;
- pg = nth_page(sg[host->sg_pos].page, off >> PAGE_SHIFT);
+ pg = nth_page(sg_page(&sg[host->sg_pos]), off >> PAGE_SHIFT);
p_off = offset_in_page(off);
p_cnt = PAGE_SIZE - p_off;
p_cnt = min(p_cnt, cnt);
p_cnt = min(p_cnt, t_size);
if (r_data->flags & MMC_DATA_WRITE)
- tifm_sd_copy_page(host->bounce_buf.page,
+ tifm_sd_copy_page(sg_page(&host->bounce_buf),
r_data->blksz - t_size,
pg, p_off, p_cnt);
else if (r_data->flags & MMC_DATA_READ)
- tifm_sd_copy_page(pg, p_off, host->bounce_buf.page,
+ tifm_sd_copy_page(pg, p_off, sg_page(&host->bounce_buf),
r_data->blksz - t_size, p_cnt);
t_size -= p_cnt;
@@ -404,14 +405,14 @@ static void tifm_sd_check_status(struct tifm_sd *host)
struct tifm_dev *sock = host->dev;
struct mmc_command *cmd = host->req->cmd;
- if (cmd->error != MMC_ERR_NONE)
+ if (cmd->error)
goto finish_request;
if (!(host->cmd_flags & CMD_READY))
return;
if (cmd->data) {
- if (cmd->data->error != MMC_ERR_NONE) {
+ if (cmd->data->error) {
if ((host->cmd_flags & SCMD_ACTIVE)
&& !(host->cmd_flags & SCMD_READY))
return;
@@ -504,7 +505,7 @@ static void tifm_sd_card_event(struct tifm_dev *sock)
{
struct tifm_sd *host;
unsigned int host_status = 0;
- int cmd_error = MMC_ERR_NONE;
+ int cmd_error = 0;
struct mmc_command *cmd = NULL;
unsigned long flags;
@@ -521,15 +522,15 @@ static void tifm_sd_card_event(struct tifm_dev *sock)
writel(host_status & TIFM_MMCSD_ERRMASK,
sock->addr + SOCK_MMCSD_STATUS);
if (host_status & TIFM_MMCSD_CTO)
- cmd_error = MMC_ERR_TIMEOUT;
+ cmd_error = -ETIMEDOUT;
else if (host_status & TIFM_MMCSD_CCRC)
- cmd_error = MMC_ERR_BADCRC;
+ cmd_error = -EILSEQ;
if (cmd->data) {
if (host_status & TIFM_MMCSD_DTO)
- cmd->data->error = MMC_ERR_TIMEOUT;
+ cmd->data->error = -ETIMEDOUT;
else if (host_status & TIFM_MMCSD_DCRC)
- cmd->data->error = MMC_ERR_BADCRC;
+ cmd->data->error = -EILSEQ;
}
writel(TIFM_FIFO_INT_SETALL,
@@ -626,14 +627,14 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
spin_lock_irqsave(&sock->lock, flags);
if (host->eject) {
- spin_unlock_irqrestore(&sock->lock, flags);
+ mrq->cmd->error = -ENOMEDIUM;
goto err_out;
}
if (host->req) {
- printk(KERN_ERR "%s : unfinished request detected\n",
- sock->dev.bus_id);
- spin_unlock_irqrestore(&sock->lock, flags);
+ pr_err("%s : unfinished request detected\n",
+ dev_name(&sock->dev));
+ mrq->cmd->error = -ETIMEDOUT;
goto err_out;
}
@@ -641,6 +642,11 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
host->block_pos = 0;
host->sg_pos = 0;
+ if (mrq->data && !is_power_of_2(mrq->data->blksz))
+ host->no_dma = 1;
+ else
+ host->no_dma = no_dma ? 1 : 0;
+
if (r_data) {
tifm_sd_set_data_timeout(host, r_data);
@@ -666,9 +672,9 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
r_data->flags & MMC_DATA_WRITE
? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE)) {
- printk(KERN_ERR "%s : scatterlist map failed\n",
- sock->dev.bus_id);
- spin_unlock_irqrestore(&sock->lock, flags);
+ pr_err("%s : scatterlist map failed\n",
+ dev_name(&sock->dev));
+ mrq->cmd->error = -ENOMEM;
goto err_out;
}
host->sg_len = tifm_map_sg(sock, r_data->sg,
@@ -678,13 +684,13 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE);
if (host->sg_len < 1) {
- printk(KERN_ERR "%s : scatterlist map failed\n",
- sock->dev.bus_id);
+ pr_err("%s : scatterlist map failed\n",
+ dev_name(&sock->dev));
tifm_unmap_sg(sock, &host->bounce_buf, 1,
r_data->flags & MMC_DATA_WRITE
? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE);
- spin_unlock_irqrestore(&sock->lock, flags);
+ mrq->cmd->error = -ENOMEM;
goto err_out;
}
@@ -722,7 +728,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
return;
err_out:
- mrq->cmd->error = MMC_ERR_TIMEOUT;
+ spin_unlock_irqrestore(&sock->lock, flags);
mmc_request_done(mmc, mrq);
}
@@ -742,8 +748,8 @@ static void tifm_sd_end_cmd(unsigned long data)
host->req = NULL;
if (!mrq) {
- printk(KERN_ERR " %s : no request to complete?\n",
- sock->dev.bus_id);
+ pr_err(" %s : no request to complete?\n",
+ dev_name(&sock->dev));
spin_unlock_irqrestore(&sock->lock, flags);
return;
}
@@ -781,10 +787,9 @@ static void tifm_sd_abort(unsigned long data)
{
struct tifm_sd *host = (struct tifm_sd*)data;
- printk(KERN_ERR
- "%s : card failed to respond for a long period of time "
+ pr_err("%s : card failed to respond for a long period of time "
"(%x, %x)\n",
- host->dev->dev.bus_id, host->req->cmd->opcode, host->cmd_flags);
+ dev_name(&host->dev->dev), host->req->cmd->opcode, host->cmd_flags);
tifm_eject(host->dev);
}
@@ -900,8 +905,8 @@ static int tifm_sd_initialize_host(struct tifm_sd *host)
}
if (rc) {
- printk(KERN_ERR "%s : controller failed to reset\n",
- sock->dev.bus_id);
+ pr_err("%s : controller failed to reset\n",
+ dev_name(&sock->dev));
return -ENODEV;
}
@@ -926,9 +931,8 @@ static int tifm_sd_initialize_host(struct tifm_sd *host)
}
if (rc) {
- printk(KERN_ERR
- "%s : card not ready - probe failed on initialization\n",
- sock->dev.bus_id);
+ pr_err("%s : card not ready - probe failed on initialization\n",
+ dev_name(&sock->dev));
return -ENODEV;
}
@@ -948,8 +952,8 @@ static int tifm_sd_probe(struct tifm_dev *sock)
if (!(TIFM_SOCK_STATE_OCCUPIED
& readl(sock->addr + SOCK_PRESENT_STATE))) {
- printk(KERN_WARNING "%s : card gone, unexpectedly\n",
- sock->dev.bus_id);
+ pr_warning("%s : card gone, unexpectedly\n",
+ dev_name(&sock->dev));
return rc;
}
@@ -958,7 +962,6 @@ static int tifm_sd_probe(struct tifm_dev *sock)
return -ENOMEM;
host = mmc_priv(mmc);
- host->no_dma = no_dma;
tifm_set_drvdata(sock, mmc);
host->dev = sock;
host->timeout_jiffies = msecs_to_jiffies(1000);
@@ -969,16 +972,15 @@ static int tifm_sd_probe(struct tifm_dev *sock)
mmc->ops = &tifm_sd_ops;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
- mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE;
+ mmc->caps = MMC_CAP_4_BIT_DATA;
mmc->f_min = 20000000 / 60;
mmc->f_max = 24000000;
mmc->max_blk_count = 2048;
- mmc->max_hw_segs = mmc->max_blk_count;
+ mmc->max_segs = mmc->max_blk_count;
mmc->max_blk_size = min(TIFM_MMCSD_MAX_BLOCK_SIZE, PAGE_SIZE);
mmc->max_seg_size = mmc->max_blk_count * mmc->max_blk_size;
mmc->max_req_size = mmc->max_seg_size;
- mmc->max_phys_segs = mmc->max_hw_segs;
sock->card_event = tifm_sd_card_event;
sock->data_event = tifm_sd_data_event;
@@ -1012,9 +1014,9 @@ static void tifm_sd_remove(struct tifm_dev *sock)
writel(TIFM_FIFO_INT_SETALL,
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
writel(0, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET);
- host->req->cmd->error = MMC_ERR_TIMEOUT;
+ host->req->cmd->error = -ENOMEDIUM;
if (host->req->stop)
- host->req->stop->error = MMC_ERR_TIMEOUT;
+ host->req->stop->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet);
}
spin_unlock_irqrestore(&sock->lock, flags);
@@ -1028,7 +1030,7 @@ static void tifm_sd_remove(struct tifm_dev *sock)
static int tifm_sd_suspend(struct tifm_dev *sock, pm_message_t state)
{
- return mmc_suspend_host(tifm_get_drvdata(sock), state);
+ return 0;
}
static int tifm_sd_resume(struct tifm_dev *sock)
@@ -1042,8 +1044,6 @@ static int tifm_sd_resume(struct tifm_dev *sock)
if (rc)
host->eject = 1;
- else
- rc = mmc_resume_host(mmc);
return rc;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-12 10:22:43 +0000