diff options
Diffstat (limited to 'drivers/mmc/wbsd.c')
| -rw-r--r-- | drivers/mmc/wbsd.c | 533 |
1 files changed, 270 insertions, 263 deletions
diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c index 4f13bd2ccf9a..f25757625361 100644 --- a/drivers/mmc/wbsd.c +++ b/drivers/mmc/wbsd.c @@ -90,7 +90,7 @@ static int dma = 2; * Basic functions */ -static inline void wbsd_unlock_config(struct wbsd_host* host) +static inline void wbsd_unlock_config(struct wbsd_host *host) { BUG_ON(host->config == 0); @@ -98,14 +98,14 @@ static inline void wbsd_unlock_config(struct wbsd_host* host) outb(host->unlock_code, host->config); } -static inline void wbsd_lock_config(struct wbsd_host* host) +static inline void wbsd_lock_config(struct wbsd_host *host) { BUG_ON(host->config == 0); outb(LOCK_CODE, host->config); } -static inline void wbsd_write_config(struct wbsd_host* host, u8 reg, u8 value) +static inline void wbsd_write_config(struct wbsd_host *host, u8 reg, u8 value) { BUG_ON(host->config == 0); @@ -113,7 +113,7 @@ static inline void wbsd_write_config(struct wbsd_host* host, u8 reg, u8 value) outb(value, host->config + 1); } -static inline u8 wbsd_read_config(struct wbsd_host* host, u8 reg) +static inline u8 wbsd_read_config(struct wbsd_host *host, u8 reg) { BUG_ON(host->config == 0); @@ -121,13 +121,13 @@ static inline u8 wbsd_read_config(struct wbsd_host* host, u8 reg) return inb(host->config + 1); } -static inline void wbsd_write_index(struct wbsd_host* host, u8 index, u8 value) +static inline void wbsd_write_index(struct wbsd_host *host, u8 index, u8 value) { outb(index, host->base + WBSD_IDXR); outb(value, host->base + WBSD_DATAR); } -static inline u8 wbsd_read_index(struct wbsd_host* host, u8 index) +static inline u8 wbsd_read_index(struct wbsd_host *host, u8 index) { outb(index, host->base + WBSD_IDXR); return inb(host->base + WBSD_DATAR); @@ -137,7 +137,7 @@ static inline u8 wbsd_read_index(struct wbsd_host* host, u8 index) * Common routines */ -static void wbsd_init_device(struct wbsd_host* host) +static void wbsd_init_device(struct wbsd_host *host) { u8 setup, ier; @@ -197,7 +197,7 @@ static void wbsd_init_device(struct wbsd_host* host) inb(host->base + WBSD_ISR); } -static void wbsd_reset(struct wbsd_host* host) +static void wbsd_reset(struct wbsd_host *host) { u8 setup; @@ -211,14 +211,13 @@ static void wbsd_reset(struct wbsd_host* host) wbsd_write_index(host, WBSD_IDX_SETUP, setup); } -static void wbsd_request_end(struct wbsd_host* host, struct mmc_request* mrq) +static void wbsd_request_end(struct wbsd_host *host, struct mmc_request *mrq) { unsigned long dmaflags; DBGF("Ending request, cmd (%x)\n", mrq->cmd->opcode); - if (host->dma >= 0) - { + if (host->dma >= 0) { /* * Release ISA DMA controller. */ @@ -247,7 +246,7 @@ static void wbsd_request_end(struct wbsd_host* host, struct mmc_request* mrq) * Scatter/gather functions */ -static inline void wbsd_init_sg(struct wbsd_host* host, struct mmc_data* data) +static inline void wbsd_init_sg(struct wbsd_host *host, struct mmc_data *data) { /* * Get info. about SG list from data structure. @@ -259,7 +258,7 @@ static inline void wbsd_init_sg(struct wbsd_host* host, struct mmc_data* data) host->remain = host->cur_sg->length; } -static inline int wbsd_next_sg(struct wbsd_host* host) +static inline int wbsd_next_sg(struct wbsd_host *host) { /* * Skip to next SG entry. @@ -270,33 +269,32 @@ static inline int wbsd_next_sg(struct wbsd_host* host) /* * Any entries left? */ - if (host->num_sg > 0) - { - host->offset = 0; - host->remain = host->cur_sg->length; - } + if (host->num_sg > 0) { + host->offset = 0; + host->remain = host->cur_sg->length; + } return host->num_sg; } -static inline char* wbsd_kmap_sg(struct wbsd_host* host) +static inline char *wbsd_kmap_sg(struct wbsd_host *host) { host->mapped_sg = kmap_atomic(host->cur_sg->page, KM_BIO_SRC_IRQ) + host->cur_sg->offset; return host->mapped_sg; } -static inline void wbsd_kunmap_sg(struct wbsd_host* host) +static inline void wbsd_kunmap_sg(struct wbsd_host *host) { kunmap_atomic(host->mapped_sg, KM_BIO_SRC_IRQ); } -static inline void wbsd_sg_to_dma(struct wbsd_host* host, struct mmc_data* data) +static inline void wbsd_sg_to_dma(struct wbsd_host *host, struct mmc_data *data) { unsigned int len, i, size; - struct scatterlist* sg; - char* dmabuf = host->dma_buffer; - char* sgbuf; + struct scatterlist *sg; + char *dmabuf = host->dma_buffer; + char *sgbuf; size = host->size; @@ -308,8 +306,7 @@ static inline void wbsd_sg_to_dma(struct wbsd_host* host, struct mmc_data* data) * be the entire list though so make sure that * we do not transfer too much. */ - for (i = 0;i < len;i++) - { + for (i = 0; i < len; i++) { sgbuf = kmap_atomic(sg[i].page, KM_BIO_SRC_IRQ) + sg[i].offset; if (size < sg[i].length) memcpy(dmabuf, sgbuf, size); @@ -337,12 +334,12 @@ static inline void wbsd_sg_to_dma(struct wbsd_host* host, struct mmc_data* data) host->size -= size; } -static inline void wbsd_dma_to_sg(struct wbsd_host* host, struct mmc_data* data) +static inline void wbsd_dma_to_sg(struct wbsd_host *host, struct mmc_data *data) { unsigned int len, i, size; - struct scatterlist* sg; - char* dmabuf = host->dma_buffer; - char* sgbuf; + struct scatterlist *sg; + char *dmabuf = host->dma_buffer; + char *sgbuf; size = host->size; @@ -354,8 +351,7 @@ static inline void wbsd_dma_to_sg(struct wbsd_host* host, struct mmc_data* data) * be the entire list though so make sure that * we do not transfer too much. */ - for (i = 0;i < len;i++) - { + for (i = 0; i < len; i++) { sgbuf = kmap_atomic(sg[i].page, KM_BIO_SRC_IRQ) + sg[i].offset; if (size < sg[i].length) memcpy(sgbuf, dmabuf, size); @@ -387,46 +383,38 @@ static inline void wbsd_dma_to_sg(struct wbsd_host* host, struct mmc_data* data) * Command handling */ -static inline void wbsd_get_short_reply(struct wbsd_host* host, - struct mmc_command* cmd) +static inline void wbsd_get_short_reply(struct wbsd_host *host, + struct mmc_command *cmd) { /* * Correct response type? */ - if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_SHORT) - { + if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_SHORT) { cmd->error = MMC_ERR_INVALID; return; } - cmd->resp[0] = - wbsd_read_index(host, WBSD_IDX_RESP12) << 24; - cmd->resp[0] |= - wbsd_read_index(host, WBSD_IDX_RESP13) << 16; - cmd->resp[0] |= - wbsd_read_index(host, WBSD_IDX_RESP14) << 8; - cmd->resp[0] |= - wbsd_read_index(host, WBSD_IDX_RESP15) << 0; - cmd->resp[1] = - wbsd_read_index(host, WBSD_IDX_RESP16) << 24; + cmd->resp[0] = wbsd_read_index(host, WBSD_IDX_RESP12) << 24; + cmd->resp[0] |= wbsd_read_index(host, WBSD_IDX_RESP13) << 16; + cmd->resp[0] |= wbsd_read_index(host, WBSD_IDX_RESP14) << 8; + cmd->resp[0] |= wbsd_read_index(host, WBSD_IDX_RESP15) << 0; + cmd->resp[1] = wbsd_read_index(host, WBSD_IDX_RESP16) << 24; } -static inline void wbsd_get_long_reply(struct wbsd_host* host, - struct mmc_command* cmd) +static inline void wbsd_get_long_reply(struct wbsd_host *host, + struct mmc_command *cmd) { int i; /* * Correct response type? */ - if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_LONG) - { + if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_LONG) { cmd->error = MMC_ERR_INVALID; return; } - for (i = 0;i < 4;i++) - { + for (i = 0; i < 4; i++) { cmd->resp[i] = wbsd_read_index(host, WBSD_IDX_RESP1 + i * 4) << 24; cmd->resp[i] |= @@ -438,7 +426,7 @@ static inline void wbsd_get_long_reply(struct wbsd_host* host, } } -static void wbsd_send_command(struct wbsd_host* host, struct mmc_command* cmd) +static void wbsd_send_command(struct wbsd_host *host, struct mmc_command *cmd) { int i; u8 status, isr; @@ -456,7 +444,7 @@ static void wbsd_send_command(struct wbsd_host* host, struct mmc_command* cmd) * Send the command (CRC calculated by host). */ outb(cmd->opcode, host->base + WBSD_CMDR); - for (i = 3;i >= 0;i--) + for (i = 3; i >= 0; i--) outb((cmd->arg >> (i * 8)) & 0xff, host->base + WBSD_CMDR); cmd->error = MMC_ERR_NONE; @@ -471,8 +459,7 @@ static void wbsd_send_command(struct wbsd_host* host, struct mmc_command* cmd) /* * Do we expect a reply? */ - if ((cmd->flags & MMC_RSP_MASK) != MMC_RSP_NONE) - { + if ((cmd->flags & MMC_RSP_MASK) != MMC_RSP_NONE) { /* * Read back status. */ @@ -488,8 +475,7 @@ static void wbsd_send_command(struct wbsd_host* host, struct mmc_command* cmd) else if ((cmd->flags & MMC_RSP_CRC) && (isr & WBSD_INT_CRC)) cmd->error = MMC_ERR_BADCRC; /* All ok */ - else - { + else { if ((cmd->flags & MMC_RSP_MASK) == MMC_RSP_SHORT) wbsd_get_short_reply(host, cmd); else @@ -504,10 +490,10 @@ static void wbsd_send_command(struct wbsd_host* host, struct mmc_command* cmd) * Data functions */ -static void wbsd_empty_fifo(struct wbsd_host* host) +static void wbsd_empty_fifo(struct wbsd_host *host) { - struct mmc_data* data = host->mrq->cmd->data; - char* buffer; + struct mmc_data *data = host->mrq->cmd->data; + char *buffer; int i, fsr, fifo; /* @@ -522,8 +508,7 @@ static void wbsd_empty_fifo(struct wbsd_host* host) * Drain the fifo. This has a tendency to loop longer * than the FIFO length (usually one block). */ - while (!((fsr = inb(host->base + WBSD_FSR)) & WBSD_FIFO_EMPTY)) - { + while (!((fsr = inb(host->base + WBSD_FSR)) & WBSD_FIFO_EMPTY)) { /* * The size field in the FSR is broken so we have to * do some guessing. @@ -535,8 +520,7 @@ static void wbsd_empty_fifo(struct wbsd_host* host) else fifo = 1; - for (i = 0;i < fifo;i++) - { + for (i = 0; i < fifo; i++) { *buffer = inb(host->base + WBSD_DFR); buffer++; host->offset++; @@ -547,8 +531,7 @@ static void wbsd_empty_fifo(struct wbsd_host* host) /* * Transfer done? */ - if (data->bytes_xfered == host->size) - { + if (data->bytes_xfered == host->size) { wbsd_kunmap_sg(host); return; } @@ -556,15 +539,13 @@ static void wbsd_empty_fifo(struct wbsd_host* host) /* * End of scatter list entry? */ - if (host->remain == 0) - { + if (host->remain == 0) { wbsd_kunmap_sg(host); /* * Get next entry. Check if last. */ - if (!wbsd_next_sg(host)) - { + if (!wbsd_next_sg(host)) { /* * We should never reach this point. * It means that we're trying to @@ -594,10 +575,10 @@ static void wbsd_empty_fifo(struct wbsd_host* host) tasklet_schedule(&host->fifo_tasklet); } -static void wbsd_fill_fifo(struct wbsd_host* host) +static void wbsd_fill_fifo(struct wbsd_host *host) { - struct mmc_data* data = host->mrq->cmd->data; - char* buffer; + struct mmc_data *data = host->mrq->cmd->data; + char *buffer; int i, fsr, fifo; /* @@ -613,8 +594,7 @@ static void wbsd_fill_fifo(struct wbsd_host* host) * Fill the fifo. This has a tendency to loop longer * than the FIFO length (usually one block). */ - while (!((fsr = inb(host->base + WBSD_FSR)) & WBSD_FIFO_FULL)) - { + while (!((fsr = inb(host->base + WBSD_FSR)) & WBSD_FIFO_FULL)) { /* * The size field in the FSR is broken so we have to * do some guessing. @@ -626,8 +606,7 @@ static void wbsd_fill_fifo(struct wbsd_host* host) else fifo = 15; - for (i = 16;i > fifo;i--) - { + for (i = 16; i > fifo; i--) { outb(*buffer, host->base + WBSD_DFR); buffer++; host->offset++; @@ -638,8 +617,7 @@ static void wbsd_fill_fifo(struct wbsd_host* host) /* * Transfer done? */ - if (data->bytes_xfered == host->size) - { + if (data->bytes_xfered == host->size) { wbsd_kunmap_sg(host); return; } @@ -647,15 +625,13 @@ static void wbsd_fill_fifo(struct wbsd_host* host) /* * End of scatter list entry? */ - if (host->remain == 0) - { + if (host->remain == 0) { wbsd_kunmap_sg(host); /* * Get next entry. Check if last. */ - if (!wbsd_next_sg(host)) - { + if (!wbsd_next_sg(host)) { /* * We should never reach this point. * It means that we're trying to @@ -684,7 +660,7 @@ static void wbsd_fill_fifo(struct wbsd_host* host) tasklet_schedule(&host->fifo_tasklet); } -static void wbsd_prepare_data(struct wbsd_host* host, struct mmc_data* data) +static void wbsd_prepare_data(struct wbsd_host *host, struct mmc_data *data) { u16 blksize; u8 setup; @@ -706,8 +682,10 @@ static void wbsd_prepare_data(struct wbsd_host* host, struct mmc_data* data) */ if (data->timeout_ns > 127000000) wbsd_write_index(host, WBSD_IDX_TAAC, 127); - else - wbsd_write_index(host, WBSD_IDX_TAAC, data->timeout_ns/1000000); + else { + wbsd_write_index(host, WBSD_IDX_TAAC, + data->timeout_ns / 1000000); + } if (data->timeout_clks > 255) wbsd_write_index(host, WBSD_IDX_NSAC, 255); @@ -722,23 +700,18 @@ static void wbsd_prepare_data(struct wbsd_host* host, struct mmc_data* data) * Space for CRC must be included in the size. * Two bytes are needed for each data line. */ - if (host->bus_width == MMC_BUS_WIDTH_1) - { + if (host->bus_width == MMC_BUS_WIDTH_1) { blksize = (1 << data->blksz_bits) + 2; wbsd_write_index(host, WBSD_IDX_PBSMSB, (blksize >> 4) & 0xF0); wbsd_write_index(host, WBSD_IDX_PBSLSB, blksize & 0xFF); - } - else if (host->bus_width == MMC_BUS_WIDTH_4) - { + } else if (host->bus_width == MMC_BUS_WIDTH_4) { blksize = (1 << data->blksz_bits) + 2 * 4; - wbsd_write_index(host, WBSD_IDX_PBSMSB, ((blksize >> 4) & 0xF0) - | WBSD_DATA_WIDTH); + wbsd_write_index(host, WBSD_IDX_PBSMSB, + ((blksize >> 4) & 0xF0) | WBSD_DATA_WIDTH); wbsd_write_index(host, WBSD_IDX_PBSLSB, blksize & 0xFF); - } - else - { + } else { data->error = MMC_ERR_INVALID; return; } @@ -755,14 +728,12 @@ static void wbsd_prepare_data(struct wbsd_host* host, struct mmc_data* data) /* * DMA transfer? */ - if (host->dma >= 0) - { + if (host->dma >= 0) { /* * The buffer for DMA is only 64 kB. */ BUG_ON(host->size > 0x10000); - if (host->size > 0x10000) - { + if (host->size > 0x10000) { data->error = MMC_ERR_INVALID; return; } @@ -794,9 +765,7 @@ static void wbsd_prepare_data(struct wbsd_host* host, struct mmc_data* data) * Enable DMA on the host. */ wbsd_write_index(host, WBSD_IDX_DMA, WBSD_DMA_ENABLE); - } - else - { + } else { /* * This flag is used to keep printk * output to a minimum. @@ -817,13 +786,10 @@ static void wbsd_prepare_data(struct wbsd_host* host, struct mmc_data* data) * Set up FIFO threshold levels (and fill * buffer if doing a write). */ - if (data->flags & MMC_DATA_READ) - { + if (data->flags & MMC_DATA_READ) { wbsd_write_index(host, WBSD_IDX_FIFOEN, WBSD_FIFOEN_FULL | 8); - } - else - { + } else { wbsd_write_index(host, WBSD_IDX_FIFOEN, WBSD_FIFOEN_EMPTY | 8); wbsd_fill_fifo(host); @@ -833,7 +799,7 @@ static void wbsd_prepare_data(struct wbsd_host* host, struct mmc_data* data) data->error = MMC_ERR_NONE; } -static void wbsd_finish_data(struct wbsd_host* host, struct mmc_data* data) +static void wbsd_finish_data(struct wbsd_host *host, struct mmc_data *data) { unsigned long dmaflags; int count; @@ -851,16 +817,14 @@ static void wbsd_finish_data(struct wbsd_host* host, struct mmc_data* data) * Wait for the controller to leave data * transfer state. */ - do - { + do { status = wbsd_read_index(host, WBSD_IDX_STATUS); } while (status & (WBSD_BLOCK_READ | WBSD_BLOCK_WRITE)); /* * DMA transfer? */ - if (host->dma >= 0) - { + if (host->dma >= 0) { /* * Disable DMA on the host. */ @@ -878,16 +842,13 @@ static void wbsd_finish_data(struct wbsd_host* host, struct mmc_data* data) /* * Any leftover data? */ - if (count) - { + if (count) { printk(KERN_ERR "%s: Incomplete DMA transfer. " "%d bytes left.\n", mmc_hostname(host->mmc), count); data->error = MMC_ERR_FAILED; - } - else - { + } else { /* * Transfer data from DMA buffer to * SG list. @@ -910,10 +871,10 @@ static void wbsd_finish_data(struct wbsd_host* host, struct mmc_data* data) * * \*****************************************************************************/ -static void wbsd_request(struct mmc_host* mmc, struct mmc_request* mrq) +static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq) { - struct wbsd_host* host = mmc_priv(mmc); - struct mmc_command* cmd; + struct wbsd_host *host = mmc_priv(mmc); + struct mmc_command *cmd; /* * Disable tasklets to avoid a deadlock. @@ -930,8 +891,7 @@ static void wbsd_request(struct mmc_host* mmc, struct mmc_request* mrq) * If there is no card in the slot then * timeout immediatly. */ - if (!(host->flags & WBSD_FCARD_PRESENT)) - { + if (!(host->flags & WBSD_FCARD_PRESENT)) { cmd->error = MMC_ERR_TIMEOUT; goto done; } @@ -939,8 +899,7 @@ static void wbsd_request(struct mmc_host* mmc, struct mmc_request* mrq) /* * Does the request include data? */ - if (cmd->data) - { + if (cmd->data) { wbsd_prepare_data(host, cmd->data); if (cmd->data->error != MMC_ERR_NONE) @@ -954,8 +913,7 @@ static void wbsd_request(struct mmc_host* mmc, struct mmc_request* mrq) * will be finished after the data has * transfered. */ - if (cmd->data && (cmd->error == MMC_ERR_NONE)) - { + if (cmd->data && (cmd->error == MMC_ERR_NONE)) { /* * Dirty fix for hardware bug. */ @@ -973,14 +931,14 @@ done: spin_unlock_bh(&host->lock); } -static void wbsd_set_ios(struct mmc_host* mmc, struct mmc_ios* ios) +static void wbsd_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) { - struct wbsd_host* host = mmc_priv(mmc); + struct wbsd_host *host = mmc_priv(mmc); u8 clk, setup, pwr; DBGF("clock %uHz busmode %u powermode %u cs %u Vdd %u width %u\n", - ios->clock, ios->bus_mode, ios->power_mode, ios->chip_select, - ios->vdd, ios->bus_width); + ios->clock, ios->bus_mode, ios->power_mode, ios->chip_select, + ios->vdd, ios->bus_width); spin_lock_bh(&host->lock); @@ -1004,8 +962,7 @@ static void wbsd_set_ios(struct mmc_host* mmc, struct mmc_ios* ios) * Only write to the clock register when * there is an actual change. */ - if (clk != host->clk) - { + if (clk != host->clk) { wbsd_write_index(host, WBSD_IDX_CLK, clk); host->clk = clk; } @@ -1013,8 +970,7 @@ static void wbsd_set_ios(struct mmc_host* mmc, struct mmc_ios* ios) /* * Power up card. */ - if (ios->power_mode != MMC_POWER_OFF) - { + if (ios->power_mode != MMC_POWER_OFF) { pwr = inb(host->base + WBSD_CSR); pwr &= ~WBSD_POWER_N; outb(pwr, host->base + WBSD_CSR); @@ -1026,23 +982,19 @@ static void wbsd_set_ios(struct mmc_host* mmc, struct mmc_ios* ios) * that needs to be disabled. */ setup = wbsd_read_index(host, WBSD_IDX_SETUP); - if (ios->chip_select == MMC_CS_HIGH) - { + if (ios->chip_select == MMC_CS_HIGH) { BUG_ON(ios->bus_width != MMC_BUS_WIDTH_1); setup |= WBSD_DAT3_H; host->flags |= WBSD_FIGNORE_DETECT; - } - else - { - if (setup & WBSD_DAT3_H) - { + } else { + if (setup & WBSD_DAT3_H) { setup &= ~WBSD_DAT3_H; /* * We cannot resume card detection immediatly * because of capacitance and delays in the chip. */ - mod_timer(&host->ignore_timer, jiffies + HZ/100); + mod_timer(&host->ignore_timer, jiffies + HZ / 100); } } wbsd_write_index(host, WBSD_IDX_SETUP, setup); @@ -1056,9 +1008,9 @@ static void wbsd_set_ios(struct mmc_host* mmc, struct mmc_ios* ios) spin_unlock_bh(&host->lock); } -static int wbsd_get_ro(struct mmc_host* mmc) +static int wbsd_get_ro(struct mmc_host *mmc) { - struct wbsd_host* host = mmc_priv(mmc); + struct wbsd_host *host = mmc_priv(mmc); u8 csr; spin_lock_bh(&host->lock); @@ -1096,7 +1048,7 @@ static struct mmc_host_ops wbsd_ops = { static void wbsd_reset_ignore(unsigned long data) { - struct wbsd_host *host = (struct wbsd_host*)data; + struct wbsd_host *host = (struct wbsd_host *)data; BUG_ON(host == NULL); @@ -1119,7 +1071,7 @@ static void wbsd_reset_ignore(unsigned long data) * Tasklets */ -static inline struct mmc_data* wbsd_get_data(struct wbsd_host* host) +static inline struct mmc_data *wbsd_get_data(struct wbsd_host *host) { WARN_ON(!host->mrq); if (!host->mrq) @@ -1138,14 +1090,13 @@ static inline struct mmc_data* wbsd_get_data(struct wbsd_host* host) static void wbsd_tasklet_card(unsigned long param) { - struct wbsd_host* host = (struct wbsd_host*)param; + struct wbsd_host *host = (struct wbsd_host *)param; u8 csr; int delay = -1; spin_lock(&host->lock); - if (host->flags & WBSD_FIGNORE_DETECT) - { + if (host->flags & WBSD_FIGNORE_DETECT) { spin_unlock(&host->lock); return; } @@ -1153,23 +1104,18 @@ static void wbsd_tasklet_card(unsigned long param) csr = inb(host->base + WBSD_CSR); WARN_ON(csr == 0xff); - if (csr & WBSD_CARDPRESENT) - { - if (!(host->flags & WBSD_FCARD_PRESENT)) - { + if (csr & WBSD_CARDPRESENT) { + if (!(host->flags & WBSD_FCARD_PRESENT)) { DBG("Card inserted\n"); host->flags |= WBSD_FCARD_PRESENT; delay = 500; } - } - else if (host->flags & WBSD_FCARD_PRESENT) - { + } else if (host->flags & WBSD_FCARD_PRESENT) { DBG("Card removed\n"); host->flags &= ~WBSD_FCARD_PRESENT; - if (host->mrq) - { + if (host->mrq) { printk(KERN_ERR "%s: Card removed during transfer!\n", mmc_hostname(host->mmc)); wbsd_reset(host); @@ -1193,8 +1139,8 @@ static void wbsd_tasklet_card(unsigned long param) static void wbsd_tasklet_fifo(unsigned long param) { - struct wbsd_host* host = (struct wbsd_host*)param; - struct mmc_data* data; + struct wbsd_host *host = (struct wbsd_host *)param; + struct mmc_data *data; spin_lock(&host->lock); @@ -1213,8 +1159,7 @@ static void wbsd_tasklet_fifo(unsigned long param) /* * Done? */ - if (host->size == data->bytes_xfered) - { + if (host->size == data->bytes_xfered) { wbsd_write_index(host, WBSD_IDX_FIFOEN, 0); tasklet_schedule(&host->finish_tasklet); } @@ -1225,8 +1170,8 @@ end: static void wbsd_tasklet_crc(unsigned long param) { - struct wbsd_host* host = (struct wbsd_host*)param; - struct mmc_data* data; + struct wbsd_host *host = (struct wbsd_host *)param; + struct mmc_data *data; spin_lock(&host->lock); @@ -1249,8 +1194,8 @@ end: static void wbsd_tasklet_timeout(unsigned long param) { - struct wbsd_host* host = (struct wbsd_host*)param; - struct mmc_data* data; + struct wbsd_host *host = (struct wbsd_host *)param; + struct mmc_data *data; spin_lock(&host->lock); @@ -1273,8 +1218,8 @@ end: static void wbsd_tasklet_finish(unsigned long param) { - struct wbsd_host* host = (struct wbsd_host*)param; - struct mmc_data* data; + struct wbsd_host *host = (struct wbsd_host *)param; + struct mmc_data *data; spin_lock(&host->lock); @@ -1294,14 +1239,13 @@ end: static void wbsd_tasklet_block(unsigned long param) { - struct wbsd_host* host = (struct wbsd_host*)param; - struct mmc_data* data; + struct wbsd_host *host = (struct wbsd_host *)param; + struct mmc_data *data; spin_lock(&host->lock); if ((wbsd_read_index(host, WBSD_IDX_CRCSTATUS) & WBSD_CRC_MASK) != - WBSD_CRC_OK) - { + WBSD_CRC_OK) { data = wbsd_get_data(host); if (!data) goto end; @@ -1323,7 +1267,7 @@ end: static irqreturn_t wbsd_irq(int irq, void *dev_id, struct pt_regs *regs) { - struct wbsd_host* host = dev_id; + struct wbsd_host *host = dev_id; int isr; isr = inb(host->base + WBSD_ISR); @@ -1365,10 +1309,10 @@ static irqreturn_t wbsd_irq(int irq, void *dev_id, struct pt_regs *regs) * Allocate/free MMC structure. */ -static int __devinit wbsd_alloc_mmc(struct device* dev) +static int __devinit wbsd_alloc_mmc(struct device *dev) { - struct mmc_host* mmc; - struct wbsd_host* host; + struct mmc_host *mmc; + struct wbsd_host *host; /* * Allocate MMC structure. @@ -1388,7 +1332,7 @@ static int __devinit wbsd_alloc_mmc(struct device* dev) mmc->ops = &wbsd_ops; mmc->f_min = 375000; mmc->f_max = 24000000; - mmc->ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34; + mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; mmc->caps = MMC_CAP_4_BIT_DATA; spin_lock_init(&host->lock); @@ -1424,10 +1368,10 @@ static int __devinit wbsd_alloc_mmc(struct device* dev) return 0; } -static void __devexit wbsd_free_mmc(struct device* dev) +static void __devexit wbsd_free_mmc(struct device *dev) { - struct mmc_host* mmc; - struct wbsd_host* host; + struct mmc_host *mmc; + struct wbsd_host *host; mmc = dev_get_drvdata(dev); if (!mmc) @@ -1447,7 +1391,7 @@ static void __devexit wbsd_free_mmc(struct device* dev) * Scan for known chip id:s */ -static int __devinit wbsd_scan(struct wbsd_host* host) +static int __devinit wbsd_scan(struct wbsd_host *host) { int i, j, k; int id; @@ -1477,16 +1421,14 @@ static int __devinit wbsd_scan(struct wbsd_host* host) wbsd_lock_config(host); for (k = 0; k < ARRAY_SIZE(valid_ids); k++) { - if (id == valid_ids[k]) - { + if (id == valid_ids[k]) { host->chip_id = id; return 0; } } - if (id != 0xFFFF) - { + if (id != 0xFFFF) { DBG("Unknown hardware (id %x) found at %x\n", id, config_ports[i]); } @@ -1505,7 +1447,7 @@ static int __devinit wbsd_scan(struct wbsd_host* host) * Allocate/free io port ranges */ -static int __devinit wbsd_request_region(struct wbsd_host* host, int base) +static int __devinit wbsd_request_region(struct wbsd_host *host, int base) { if (io & 0x7) return -EINVAL; @@ -1518,7 +1460,7 @@ static int __devinit wbsd_request_region(struct wbsd_host* host, int base) return 0; } -static void __devexit wbsd_release_regions(struct wbsd_host* host) +static void __devexit wbsd_release_regions(struct wbsd_host *host) { if (host->base) release_region(host->base, 8); @@ -1535,7 +1477,7 @@ static void __devexit wbsd_release_regions(struct wbsd_host* host) * Allocate/free DMA port and buffer */ -static void __devinit wbsd_request_dma(struct wbsd_host* host, int dma) +static void __devinit wbsd_request_dma(struct wbsd_host *host, int dma) { if (dma < 0) return; @@ -1579,8 +1521,8 @@ kfree: */ BUG_ON(1); - dma_unmap_single(host->mmc->dev, host->dma_addr, WBSD_DMA_SIZE, - DMA_BIDIRECTIONAL); + dma_unmap_single(host->mmc->dev, host->dma_addr, + WBSD_DMA_SIZE, DMA_BIDIRECTIONAL); host->dma_addr = (dma_addr_t)NULL; kfree(host->dma_buffer); @@ -1594,11 +1536,12 @@ err: "Falling back on FIFO.\n", dma); } -static void __devexit wbsd_release_dma(struct wbsd_host* host) +static void __devexit wbsd_release_dma(struct wbsd_host *host) { - if (host->dma_addr) - dma_unmap_single(host->mmc->dev, host->dma_addr, WBSD_DMA_SIZE, - DMA_BIDIRECTIONAL); + if (host->dma_addr) { + dma_unmap_single(host->mmc->dev, host->dma_addr, + WBSD_DMA_SIZE, DMA_BIDIRECTIONAL); + } kfree(host->dma_buffer); if (host->dma >= 0) free_dma(host->dma); @@ -1612,7 +1555,7 @@ static void __devexit wbsd_release_dma(struct wbsd_host* host) * Allocate/free IRQ. */ -static int __devinit wbsd_request_irq(struct wbsd_host* host, int irq) +static int __devinit wbsd_request_irq(struct wbsd_host *host, int irq) { int ret; @@ -1629,17 +1572,23 @@ static int __devinit wbsd_request_irq(struct wbsd_host* host, int irq) /* * Set up tasklets. */ - tasklet_init(&host->card_tasklet, wbsd_tasklet_card, (unsigned long)host); - tasklet_init(&host->fifo_tasklet, wbsd_tasklet_fifo, (unsigned long)host); - tasklet_init(&host->crc_tasklet, wbsd_tasklet_crc, (unsigned long)host); - tasklet_init(&host->timeout_tasklet, wbsd_tasklet_timeout, (unsigned long)host); - tasklet_init(&host->finish_tasklet, wbsd_tasklet_finish, (unsigned long)host); - tasklet_init(&host->block_tasklet, wbsd_tasklet_block, (unsigned long)host); + tasklet_init(&host->card_tasklet, wbsd_tasklet_card, + (unsigned long)host); + tasklet_init(&host->fifo_tasklet, wbsd_tasklet_fifo, + (unsigned long)host); + tasklet_init(&host->crc_tasklet, wbsd_tasklet_crc, + (unsigned long)host); + tasklet_init(&host->timeout_tasklet, wbsd_tasklet_timeout, + (unsigned long)host); + tasklet_init(&host->finish_tasklet, wbsd_tasklet_finish, + (unsigned long)host); + tasklet_init(&host->block_tasklet, wbsd_tasklet_block, + (unsigned long)host); return 0; } -static void __devexit wbsd_release_irq(struct wbsd_host* host) +static void __devexit wbsd_release_irq(struct wbsd_host *host) { if (!host->irq) return; @@ -1660,7 +1609,7 @@ static void __devexit wbsd_release_irq(struct wbsd_host* host) * Allocate all resources for the host. */ -static int __devinit wbsd_request_resources(struct wbsd_host* host, +static int __devinit wbsd_request_resources(struct wbsd_host *host, int base, int irq, int dma) { int ret; @@ -1691,7 +1640,7 @@ static int __devinit wbsd_request_resources(struct wbsd_host* host, * Release all resources for the host. */ -static void __devexit wbsd_release_resources(struct wbsd_host* host) +static void __devexit wbsd_release_resources(struct wbsd_host *host) { wbsd_release_dma(host); wbsd_release_irq(host); @@ -1702,7 +1651,7 @@ static void __devexit wbsd_release_resources(struct wbsd_host* host) * Configure the resources the chip should use. */ -static void wbsd_chip_config(struct wbsd_host* host) +static void wbsd_chip_config(struct wbsd_host *host) { wbsd_unlock_config(host); @@ -1746,7 +1695,7 @@ static void wbsd_chip_config(struct wbsd_host* host) * Check that configured resources are correct. */ -static int wbsd_chip_validate(struct wbsd_host* host) +static int wbsd_chip_validate(struct wbsd_host *host) { int base, irq, dma; @@ -1786,7 +1735,7 @@ static int wbsd_chip_validate(struct wbsd_host* host) * Powers down the SD function */ -static void wbsd_chip_poweroff(struct wbsd_host* host) +static void wbsd_chip_poweroff(struct wbsd_host *host) { wbsd_unlock_config(host); @@ -1802,11 +1751,11 @@ static void wbsd_chip_poweroff(struct wbsd_host* host) * * \*****************************************************************************/ -static int __devinit wbsd_init(struct device* dev, int base, int irq, int dma, +static int __devinit wbsd_init(struct device *dev, int base, int irq, int dma, int pnp) { - struct wbsd_host* host = NULL; - struct mmc_host* mmc = NULL; + struct wbsd_host *host = NULL; + struct mmc_host *mmc = NULL; int ret; ret = wbsd_alloc_mmc(dev); @@ -1820,16 +1769,12 @@ static int __devinit wbsd_init(struct device* dev, int base, int irq, int dma, * Scan for hardware. */ ret = wbsd_scan(host); - if (ret) - { - if (pnp && (ret == -ENODEV)) - { + if (ret) { + if (pnp && (ret == -ENODEV)) { printk(KERN_WARNING DRIVER_NAME ": Unable to confirm device presence. You may " "experience lock-ups.\n"); - } - else - { + } else { wbsd_free_mmc(dev); return ret; } @@ -1839,8 +1784,7 @@ static int __devinit wbsd_init(struct device* dev, int base, int irq, int dma, * Request resources. */ ret = wbsd_request_resources(host, io, irq, dma); - if (ret) - { + if (ret) { wbsd_release_resources(host); wbsd_free_mmc(dev); return ret; @@ -1849,18 +1793,15 @@ static int __devinit wbsd_init(struct device* dev, int base, int irq, int dma, /* * See if chip needs to be configured. */ - if (pnp) - { - if ((host->config != 0) && !wbsd_chip_validate(host)) - { + if (pnp) { + if ((host->config != 0) && !wbsd_chip_validate(host)) { printk(KERN_WARNING DRIVER_NAME ": PnP active but chip not configured! " "You probably have a buggy BIOS. " "Configuring chip manually.\n"); wbsd_chip_config(host); } - } - else + } else wbsd_chip_config(host); /* @@ -1868,8 +1809,7 @@ static int __devinit wbsd_init(struct device* dev, int base, int irq, int dma, * Not tested. */ #ifdef CONFIG_PM - if (host->config) - { + if (host->config) { wbsd_unlock_config(host); wbsd_write_config(host, WBSD_CONF_PME, 0xA0); wbsd_lock_config(host); @@ -1902,10 +1842,10 @@ static int __devinit wbsd_init(struct device* dev, int base, int irq, int dma, return 0; } -static void __devexit wbsd_shutdown(struct device* dev, int pnp) +static void __devexit wbsd_shutdown(struct device *dev, int pnp) { - struct mmc_host* mmc = dev_get_drvdata(dev); - struct wbsd_host* host; + struct mmc_host *mmc = dev_get_drvdata(dev); + struct wbsd_host *host; if (!mmc) return; @@ -1929,12 +1869,12 @@ static void __devexit wbsd_shutdown(struct device* dev, int pnp) * Non-PnP */ -static int __devinit wbsd_probe(struct platform_device* dev) +static int __devinit wbsd_probe(struct platform_device *dev) { return wbsd_init(&dev->dev, io, irq, dma, 0); } -static int __devexit wbsd_remove(struct platform_device* dev) +static int __devexit wbsd_remove(struct platform_device *dev) { wbsd_shutdown(&dev->dev, 0); @@ -1948,7 +1888,7 @@ static int __devexit wbsd_remove(struct platform_device* dev) #ifdef CONFIG_PNP static int __devinit -wbsd_pnp_probe(struct pnp_dev * pnpdev, const struct pnp_device_id *dev_id) +wbsd_pnp_probe(struct pnp_dev *pnpdev, const struct pnp_device_id *dev_id) { int io, irq, dma; @@ -1967,7 +1907,7 @@ wbsd_pnp_probe(struct pnp_dev * pnpdev, const struct pnp_device_id *dev_id) return wbsd_init(&pnpdev->dev, io, irq, dma, 1); } -static void __devexit wbsd_pnp_remove(struct pnp_dev * dev) +static void __devexit wbsd_pnp_remove(struct pnp_dev *dev) { wbsd_shutdown(&dev->dev, 1); } @@ -1980,37 +1920,54 @@ static void __devexit wbsd_pnp_remove(struct pnp_dev * dev) #ifdef CONFIG_PM -static int wbsd_suspend(struct platform_device *dev, pm_message_t state) +static int wbsd_suspend(struct wbsd_host *host, pm_message_t state) +{ + BUG_ON(host == NULL); + + return mmc_suspend_host(host->mmc, state); +} + +static int wbsd_resume(struct wbsd_host *host) +{ + BUG_ON(host == NULL); + + wbsd_init_device(host); + + return mmc_resume_host(host->mmc); +} + +static int wbsd_platform_suspend(struct platform_device *dev, + pm_message_t state) { struct mmc_host *mmc = platform_get_drvdata(dev); struct wbsd_host *host; int ret; - if (!mmc) + if (mmc == NULL) return 0; - DBG("Suspending...\n"); - - ret = mmc_suspend_host(mmc, state); - if (!ret) - return ret; + DBGF("Suspending...\n"); host = mmc_priv(mmc); + ret = wbsd_suspend(host, state); + if (ret) + return ret; + wbsd_chip_poweroff(host); return 0; } -static int wbsd_resume(struct platform_device *dev) +static int wbsd_platform_resume(struct platform_device *dev) { struct mmc_host *mmc = platform_get_drvdata(dev); struct wbsd_host *host; - if (!mmc) + if (mmc == NULL) return 0; - DBG("Resuming...\n"); + DBGF("Resuming...\n"); host = mmc_priv(mmc); @@ -2021,15 +1978,68 @@ static int wbsd_resume(struct platform_device *dev) */ mdelay(5); - wbsd_init_device(host); + return wbsd_resume(host); +} + +#ifdef CONFIG_PNP + +static int wbsd_pnp_suspend(struct pnp_dev *pnp_dev, pm_message_t state) +{ + struct mmc_host *mmc = dev_get_drvdata(&pnp_dev->dev); + struct wbsd_host *host; + + if (mmc == NULL) + return 0; + + DBGF("Suspending...\n"); + + host = mmc_priv(mmc); + + return wbsd_suspend(host, state); +} + +static int wbsd_pnp_resume(struct pnp_dev *pnp_dev) +{ + struct mmc_host *mmc = dev_get_drvdata(&pnp_dev->dev); + struct wbsd_host *host; + + if (mmc == NULL) + return 0; + + DBGF("Resuming...\n"); - return mmc_resume_host(mmc); + host = mmc_priv(mmc); + + /* + * See if chip needs to be configured. + */ + if (host->config != 0) { + if (!wbsd_chip_validate(host)) { + printk(KERN_WARNING DRIVER_NAME + ": PnP active but chip not configured! " + "You probably have a buggy BIOS. " + "Configuring chip manually.\n"); + wbsd_chip_config(host); + } + } + + /* + * Allow device to initialise itself properly. + */ + mdelay(5); + + return wbsd_resume(host); } +#endif /* CONFIG_PNP */ + #else /* CONFIG_PM */ -#define wbsd_suspend NULL -#define wbsd_resume NULL +#define wbsd_platform_suspend NULL +#define wbsd_platform_resume NULL + +#define wbsd_pnp_suspend NULL +#define wbsd_pnp_resume NULL #endif /* CONFIG_PM */ @@ -2039,8 +2049,8 @@ static struct platform_driver wbsd_driver = { .probe = wbsd_probe, .remove = __devexit_p(wbsd_remove), - .suspend = wbsd_suspend, - .resume = wbsd_resume, + .suspend = wbsd_platform_suspend, + .resume = wbsd_platform_resume, .driver = { .name = DRIVER_NAME, }, @@ -2053,6 +2063,9 @@ static struct pnp_driver wbsd_pnp_driver = { .id_table = pnp_dev_table, .probe = wbsd_pnp_probe, .remove = __devexit_p(wbsd_pnp_remove), + + .suspend = wbsd_pnp_suspend, + .resume = wbsd_pnp_resume, }; #endif /* CONFIG_PNP */ @@ -2072,31 +2085,26 @@ static int __init wbsd_drv_init(void) #ifdef CONFIG_PNP - if (!nopnp) - { + if (!nopnp) { result = pnp_register_driver(&wbsd_pnp_driver); if (result < 0) return result; } - #endif /* CONFIG_PNP */ - if (nopnp) - { + if (nopnp) { result = platform_driver_register(&wbsd_driver); if (result < 0) return result; wbsd_device = platform_device_alloc(DRIVER_NAME, -1); - if (!wbsd_device) - { + if (!wbsd_device) { platform_driver_unregister(&wbsd_driver); return -ENOMEM; } result = platform_device_add(wbsd_device); - if (result) - { + if (result) { platform_device_put(wbsd_device); platform_driver_unregister(&wbsd_driver); return result; @@ -2115,8 +2123,7 @@ static void __exit wbsd_drv_exit(void) #endif /* CONFIG_PNP */ - if (nopnp) - { + if (nopnp) { platform_device_unregister(wbsd_device); platform_driver_unregister(&wbsd_driver); |