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author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/video/broadsheetfb.c | |
parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/video/broadsheetfb.c')
-rw-r--r-- | drivers/video/broadsheetfb.c | 738 |
1 files changed, 704 insertions, 34 deletions
diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c index df9ccb9..ebda687 100644 --- a/drivers/video/broadsheetfb.c +++ b/drivers/video/broadsheetfb.c @@ -29,11 +29,65 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/list.h> +#include <linux/firmware.h> #include <linux/uaccess.h> #include <video/broadsheetfb.h> -/* Display specific information */ +/* track panel specific parameters */ +struct panel_info { + int w; + int h; + u16 sdcfg; + u16 gdcfg; + u16 lutfmt; + u16 fsynclen; + u16 fendfbegin; + u16 lsynclen; + u16 lendlbegin; + u16 pixclk; +}; + +/* table of panel specific parameters to be indexed into by the board drivers */ +static struct panel_info panel_table[] = { + { /* standard 6" on TFT backplane */ + .w = 800, + .h = 600, + .sdcfg = (100 | (1 << 8) | (1 << 9)), + .gdcfg = 2, + .lutfmt = (4 | (1 << 7)), + .fsynclen = 4, + .fendfbegin = (10 << 8) | 4, + .lsynclen = 10, + .lendlbegin = (100 << 8) | 4, + .pixclk = 6, + }, + { /* custom 3.7" flexible on PET or steel */ + .w = 320, + .h = 240, + .sdcfg = (67 | (0 << 8) | (0 << 9) | (0 << 10) | (0 << 12)), + .gdcfg = 3, + .lutfmt = (4 | (1 << 7)), + .fsynclen = 0, + .fendfbegin = (80 << 8) | 4, + .lsynclen = 10, + .lendlbegin = (80 << 8) | 20, + .pixclk = 14, + }, + { /* standard 9.7" on TFT backplane */ + .w = 1200, + .h = 825, + .sdcfg = (100 | (1 << 8) | (1 << 9) | (0 << 10) | (0 << 12)), + .gdcfg = 2, + .lutfmt = (4 | (1 << 7)), + .fsynclen = 0, + .fendfbegin = (4 << 8) | 4, + .lsynclen = 4, + .lendlbegin = (60 << 8) | 10, + .pixclk = 3, + }, +}; + #define DPY_W 800 #define DPY_H 600 @@ -62,30 +116,30 @@ static struct fb_var_screeninfo broadsheetfb_var __devinitdata = { }; /* main broadsheetfb functions */ -static void broadsheet_issue_data(struct broadsheetfb_par *par, u16 data) +static void broadsheet_gpio_issue_data(struct broadsheetfb_par *par, u16 data) { par->board->set_ctl(par, BS_WR, 0); par->board->set_hdb(par, data); par->board->set_ctl(par, BS_WR, 1); } -static void broadsheet_issue_cmd(struct broadsheetfb_par *par, u16 data) +static void broadsheet_gpio_issue_cmd(struct broadsheetfb_par *par, u16 data) { par->board->set_ctl(par, BS_DC, 0); - broadsheet_issue_data(par, data); + broadsheet_gpio_issue_data(par, data); } -static void broadsheet_send_command(struct broadsheetfb_par *par, u16 data) +static void broadsheet_gpio_send_command(struct broadsheetfb_par *par, u16 data) { par->board->wait_for_rdy(par); par->board->set_ctl(par, BS_CS, 0); - broadsheet_issue_cmd(par, data); + broadsheet_gpio_issue_cmd(par, data); par->board->set_ctl(par, BS_DC, 1); par->board->set_ctl(par, BS_CS, 1); } -static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, +static void broadsheet_gpio_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, int argc, u16 *argv) { int i; @@ -93,15 +147,43 @@ static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, par->board->wait_for_rdy(par); par->board->set_ctl(par, BS_CS, 0); - broadsheet_issue_cmd(par, cmd); + broadsheet_gpio_issue_cmd(par, cmd); par->board->set_ctl(par, BS_DC, 1); for (i = 0; i < argc; i++) - broadsheet_issue_data(par, argv[i]); + broadsheet_gpio_issue_data(par, argv[i]); par->board->set_ctl(par, BS_CS, 1); } -static void broadsheet_burst_write(struct broadsheetfb_par *par, int size, +static void broadsheet_mmio_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, + int argc, u16 *argv) +{ + int i; + + par->board->mmio_write(par, BS_MMIO_CMD, cmd); + + for (i = 0; i < argc; i++) + par->board->mmio_write(par, BS_MMIO_DATA, argv[i]); +} + +static void broadsheet_send_command(struct broadsheetfb_par *par, u16 data) +{ + if (par->board->mmio_write) + par->board->mmio_write(par, BS_MMIO_CMD, data); + else + broadsheet_gpio_send_command(par, data); +} + +static void broadsheet_send_cmdargs(struct broadsheetfb_par *par, u16 cmd, + int argc, u16 *argv) +{ + if (par->board->mmio_write) + broadsheet_mmio_send_cmdargs(par, cmd, argc, argv); + else + broadsheet_gpio_send_cmdargs(par, cmd, argc, argv); +} + +static void broadsheet_gpio_burst_write(struct broadsheetfb_par *par, int size, u16 *data) { int i; @@ -121,7 +203,30 @@ static void broadsheet_burst_write(struct broadsheetfb_par *par, int size, par->board->set_ctl(par, BS_CS, 1); } -static u16 broadsheet_get_data(struct broadsheetfb_par *par) +static void broadsheet_mmio_burst_write(struct broadsheetfb_par *par, int size, + u16 *data) +{ + int i; + u16 tmp; + + for (i = 0; i < size; i++) { + tmp = (data[i] & 0x0F) << 4; + tmp |= (data[i] & 0x0F00) << 4; + par->board->mmio_write(par, BS_MMIO_DATA, tmp); + } + +} + +static void broadsheet_burst_write(struct broadsheetfb_par *par, int size, + u16 *data) +{ + if (par->board->mmio_write) + broadsheet_mmio_burst_write(par, size, data); + else + broadsheet_gpio_burst_write(par, size, data); +} + +static u16 broadsheet_gpio_get_data(struct broadsheetfb_par *par) { u16 res; /* wait for ready to go hi. (lo is busy) */ @@ -141,7 +246,16 @@ static u16 broadsheet_get_data(struct broadsheetfb_par *par) return res; } -static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg, + +static u16 broadsheet_get_data(struct broadsheetfb_par *par) +{ + if (par->board->mmio_read) + return par->board->mmio_read(par); + else + return broadsheet_gpio_get_data(par); +} + +static void broadsheet_gpio_write_reg(struct broadsheetfb_par *par, u16 reg, u16 data) { /* wait for ready to go hi. (lo is busy) */ @@ -150,44 +264,541 @@ static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg, /* cs lo, dc lo for cmd, we lo for each data, db as usual */ par->board->set_ctl(par, BS_CS, 0); - broadsheet_issue_cmd(par, BS_CMD_WR_REG); + broadsheet_gpio_issue_cmd(par, BS_CMD_WR_REG); par->board->set_ctl(par, BS_DC, 1); - broadsheet_issue_data(par, reg); - broadsheet_issue_data(par, data); + broadsheet_gpio_issue_data(par, reg); + broadsheet_gpio_issue_data(par, data); par->board->set_ctl(par, BS_CS, 1); } +static void broadsheet_mmio_write_reg(struct broadsheetfb_par *par, u16 reg, + u16 data) +{ + par->board->mmio_write(par, BS_MMIO_CMD, BS_CMD_WR_REG); + par->board->mmio_write(par, BS_MMIO_DATA, reg); + par->board->mmio_write(par, BS_MMIO_DATA, data); + +} + +static void broadsheet_write_reg(struct broadsheetfb_par *par, u16 reg, + u16 data) +{ + if (par->board->mmio_write) + broadsheet_mmio_write_reg(par, reg, data); + else + broadsheet_gpio_write_reg(par, reg, data); +} + +static void broadsheet_write_reg32(struct broadsheetfb_par *par, u16 reg, + u32 data) +{ + broadsheet_write_reg(par, reg, cpu_to_le32(data) & 0xFFFF); + broadsheet_write_reg(par, reg + 2, (cpu_to_le32(data) >> 16) & 0xFFFF); +} + + static u16 broadsheet_read_reg(struct broadsheetfb_par *par, u16 reg) { - broadsheet_send_command(par, reg); - msleep(100); + broadsheet_send_cmdargs(par, BS_CMD_RD_REG, 1, ®); + par->board->wait_for_rdy(par); return broadsheet_get_data(par); } +/* functions for waveform manipulation */ +static int is_broadsheet_pll_locked(struct broadsheetfb_par *par) +{ + return broadsheet_read_reg(par, 0x000A) & 0x0001; +} + +static int broadsheet_setup_plls(struct broadsheetfb_par *par) +{ + int retry_count = 0; + u16 tmp; + + /* disable arral saemipu mode */ + broadsheet_write_reg(par, 0x0006, 0x0000); + + broadsheet_write_reg(par, 0x0010, 0x0004); + broadsheet_write_reg(par, 0x0012, 0x5949); + broadsheet_write_reg(par, 0x0014, 0x0040); + broadsheet_write_reg(par, 0x0016, 0x0000); + + do { + if (retry_count++ > 100) + return -ETIMEDOUT; + mdelay(1); + } while (!is_broadsheet_pll_locked(par)); + + tmp = broadsheet_read_reg(par, 0x0006); + tmp &= ~0x1; + broadsheet_write_reg(par, 0x0006, tmp); + + return 0; +} + +static int broadsheet_setup_spi(struct broadsheetfb_par *par) +{ + + broadsheet_write_reg(par, 0x0204, ((3 << 3) | 1)); + broadsheet_write_reg(par, 0x0208, 0x0001); + + return 0; +} + +static int broadsheet_setup_spiflash(struct broadsheetfb_par *par, + u16 *orig_sfmcd) +{ + + *orig_sfmcd = broadsheet_read_reg(par, 0x0204); + broadsheet_write_reg(par, 0x0208, 0); + broadsheet_write_reg(par, 0x0204, 0); + broadsheet_write_reg(par, 0x0204, ((3 << 3) | 1)); + + return 0; +} + +static int broadsheet_spiflash_wait_for_bit(struct broadsheetfb_par *par, + u16 reg, int bitnum, int val, + int timeout) +{ + u16 tmp; + + do { + tmp = broadsheet_read_reg(par, reg); + if (((tmp >> bitnum) & 1) == val) + return 0; + mdelay(1); + } while (timeout--); + + return -ETIMEDOUT; +} + +static int broadsheet_spiflash_write_byte(struct broadsheetfb_par *par, u8 data) +{ + broadsheet_write_reg(par, 0x0202, (data | 0x100)); + + return broadsheet_spiflash_wait_for_bit(par, 0x0206, 3, 0, 100); +} + +static int broadsheet_spiflash_read_byte(struct broadsheetfb_par *par, u8 *data) +{ + int err; + u16 tmp; + + broadsheet_write_reg(par, 0x0202, 0); + + err = broadsheet_spiflash_wait_for_bit(par, 0x0206, 3, 0, 100); + if (err) + return err; + + tmp = broadsheet_read_reg(par, 0x200); + + *data = tmp & 0xFF; + + return 0; +} + +static int broadsheet_spiflash_wait_for_status(struct broadsheetfb_par *par, + int timeout) +{ + u8 tmp; + int err; + + do { + broadsheet_write_reg(par, 0x0208, 1); + + err = broadsheet_spiflash_write_byte(par, 0x05); + if (err) + goto failout; + + err = broadsheet_spiflash_read_byte(par, &tmp); + if (err) + goto failout; + + broadsheet_write_reg(par, 0x0208, 0); + + if (!(tmp & 0x1)) + return 0; + + mdelay(5); + } while (timeout--); + + dev_err(par->info->device, "Timed out waiting for spiflash status\n"); + return -ETIMEDOUT; + +failout: + broadsheet_write_reg(par, 0x0208, 0); + return err; +} + +static int broadsheet_spiflash_op_on_address(struct broadsheetfb_par *par, + u8 op, u32 addr) +{ + int i; + u8 tmp; + int err; + + broadsheet_write_reg(par, 0x0208, 1); + + err = broadsheet_spiflash_write_byte(par, op); + if (err) + return err; + + for (i = 2; i >= 0; i--) { + tmp = ((addr >> (i * 8)) & 0xFF); + err = broadsheet_spiflash_write_byte(par, tmp); + if (err) + return err; + } + + return err; +} + +static int broadsheet_verify_spiflash(struct broadsheetfb_par *par, + int *flash_type) +{ + int err = 0; + u8 sig; + + err = broadsheet_spiflash_op_on_address(par, 0xAB, 0x00000000); + if (err) + goto failout; + + err = broadsheet_spiflash_read_byte(par, &sig); + if (err) + goto failout; + + if ((sig != 0x10) && (sig != 0x11)) { + dev_err(par->info->device, "Unexpected flash type\n"); + err = -EINVAL; + goto failout; + } + + *flash_type = sig; + +failout: + broadsheet_write_reg(par, 0x0208, 0); + return err; +} + +static int broadsheet_setup_for_wfm_write(struct broadsheetfb_par *par, + u16 *initial_sfmcd, int *flash_type) + +{ + int err; + + err = broadsheet_setup_plls(par); + if (err) + return err; + + broadsheet_write_reg(par, 0x0106, 0x0203); + + err = broadsheet_setup_spi(par); + if (err) + return err; + + err = broadsheet_setup_spiflash(par, initial_sfmcd); + if (err) + return err; + + return broadsheet_verify_spiflash(par, flash_type); +} + +static int broadsheet_spiflash_write_control(struct broadsheetfb_par *par, + int mode) +{ + int err; + + broadsheet_write_reg(par, 0x0208, 1); + if (mode) + err = broadsheet_spiflash_write_byte(par, 0x06); + else + err = broadsheet_spiflash_write_byte(par, 0x04); + + broadsheet_write_reg(par, 0x0208, 0); + return err; +} + +static int broadsheet_spiflash_erase_sector(struct broadsheetfb_par *par, + int addr) +{ + int err; + + broadsheet_spiflash_write_control(par, 1); + + err = broadsheet_spiflash_op_on_address(par, 0xD8, addr); + + broadsheet_write_reg(par, 0x0208, 0); + + if (err) + return err; + + err = broadsheet_spiflash_wait_for_status(par, 1000); + + return err; +} + +static int broadsheet_spiflash_read_range(struct broadsheetfb_par *par, + int addr, int size, char *data) +{ + int err; + int i; + + err = broadsheet_spiflash_op_on_address(par, 0x03, addr); + if (err) + goto failout; + + for (i = 0; i < size; i++) { + err = broadsheet_spiflash_read_byte(par, &data[i]); + if (err) + goto failout; + } + +failout: + broadsheet_write_reg(par, 0x0208, 0); + return err; +} + +#define BS_SPIFLASH_PAGE_SIZE 256 +static int broadsheet_spiflash_write_page(struct broadsheetfb_par *par, + int addr, const char *data) +{ + int err; + int i; + + broadsheet_spiflash_write_control(par, 1); + + err = broadsheet_spiflash_op_on_address(par, 0x02, addr); + if (err) + goto failout; + + for (i = 0; i < BS_SPIFLASH_PAGE_SIZE; i++) { + err = broadsheet_spiflash_write_byte(par, data[i]); + if (err) + goto failout; + } + + broadsheet_write_reg(par, 0x0208, 0); + + err = broadsheet_spiflash_wait_for_status(par, 100); + +failout: + return err; +} + +static int broadsheet_spiflash_write_sector(struct broadsheetfb_par *par, + int addr, const char *data, int sector_size) +{ + int i; + int err; + + for (i = 0; i < sector_size; i += BS_SPIFLASH_PAGE_SIZE) { + err = broadsheet_spiflash_write_page(par, addr + i, &data[i]); + if (err) + return err; + } + return 0; +} + +/* + * The caller must guarantee that the data to be rewritten is entirely + * contained within this sector. That is, data_start_addr + data_len + * must be less than sector_start_addr + sector_size. + */ +static int broadsheet_spiflash_rewrite_sector(struct broadsheetfb_par *par, + int sector_size, int data_start_addr, + int data_len, const char *data) +{ + int err; + char *sector_buffer; + int tail_start_addr; + int start_sector_addr; + + sector_buffer = kzalloc(sizeof(char)*sector_size, GFP_KERNEL); + if (!sector_buffer) + return -ENOMEM; + + /* the start address of the sector is the 0th byte of that sector */ + start_sector_addr = (data_start_addr / sector_size) * sector_size; + + /* + * check if there is head data that we need to readback into our sector + * buffer first + */ + if (data_start_addr != start_sector_addr) { + /* + * we need to read every byte up till the start address of our + * data and we put it into our sector buffer. + */ + err = broadsheet_spiflash_read_range(par, start_sector_addr, + data_start_addr, sector_buffer); + if (err) + return err; + } + + /* now we copy our data into the right place in the sector buffer */ + memcpy(sector_buffer + data_start_addr, data, data_len); + + /* + * now we check if there is a tail section of the sector that we need to + * readback. + */ + tail_start_addr = (data_start_addr + data_len) % sector_size; + + if (tail_start_addr) { + int tail_len; + + tail_len = sector_size - tail_start_addr; + + /* now we read this tail into our sector buffer */ + err = broadsheet_spiflash_read_range(par, tail_start_addr, + tail_len, sector_buffer + tail_start_addr); + if (err) + return err; + } + + /* if we got here we have the full sector that we want to rewrite. */ + + /* first erase the sector */ + err = broadsheet_spiflash_erase_sector(par, start_sector_addr); + if (err) + return err; + + /* now write it */ + err = broadsheet_spiflash_write_sector(par, start_sector_addr, + sector_buffer, sector_size); + return err; +} + +static int broadsheet_write_spiflash(struct broadsheetfb_par *par, u32 wfm_addr, + const u8 *wfm, int bytecount, int flash_type) +{ + int sector_size; + int err; + int cur_addr; + int writecount; + int maxlen; + int offset = 0; + + switch (flash_type) { + case 0x10: + sector_size = 32*1024; + break; + case 0x11: + default: + sector_size = 64*1024; + break; + } + + while (bytecount) { + cur_addr = wfm_addr + offset; + maxlen = roundup(cur_addr, sector_size) - cur_addr; + writecount = min(bytecount, maxlen); + + err = broadsheet_spiflash_rewrite_sector(par, sector_size, + cur_addr, writecount, wfm + offset); + if (err) + return err; + + offset += writecount; + bytecount -= writecount; + } + + return 0; +} + +static int broadsheet_store_waveform_to_spiflash(struct broadsheetfb_par *par, + const u8 *wfm, size_t wfm_size) +{ + int err = 0; + u16 initial_sfmcd = 0; + int flash_type = 0; + + err = broadsheet_setup_for_wfm_write(par, &initial_sfmcd, &flash_type); + if (err) + goto failout; + + err = broadsheet_write_spiflash(par, 0x886, wfm, wfm_size, flash_type); + +failout: + broadsheet_write_reg(par, 0x0204, initial_sfmcd); + return err; +} + +static ssize_t broadsheet_loadstore_waveform(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + int err; + struct fb_info *info = dev_get_drvdata(dev); + struct broadsheetfb_par *par = info->par; + const struct firmware *fw_entry; + + if (len < 1) + return -EINVAL; + + err = request_firmware(&fw_entry, "broadsheet.wbf", dev); + if (err < 0) { + dev_err(dev, "Failed to get broadsheet waveform\n"); + goto err_failed; + } + + /* try to enforce reasonable min max on waveform */ + if ((fw_entry->size < 8*1024) || (fw_entry->size > 64*1024)) { + dev_err(dev, "Invalid waveform\n"); + err = -EINVAL; + goto err_failed; + } + + mutex_lock(&(par->io_lock)); + err = broadsheet_store_waveform_to_spiflash(par, fw_entry->data, + fw_entry->size); + + mutex_unlock(&(par->io_lock)); + if (err < 0) { + dev_err(dev, "Failed to store broadsheet waveform\n"); + goto err_failed; + } + + dev_info(dev, "Stored broadsheet waveform, size %zd\n", fw_entry->size); + + return len; + +err_failed: + return err; +} +static DEVICE_ATTR(loadstore_waveform, S_IWUSR, NULL, + broadsheet_loadstore_waveform); + +/* upper level functions that manipulate the display and other stuff */ static void __devinit broadsheet_init_display(struct broadsheetfb_par *par) { u16 args[5]; - - args[0] = DPY_W; - args[1] = DPY_H; - args[2] = (100 | (1 << 8) | (1 << 9)); /* sdcfg */ - args[3] = 2; /* gdrv cfg */ - args[4] = (4 | (1 << 7)); /* lut index format */ + int xres = par->info->var.xres; + int yres = par->info->var.yres; + + args[0] = panel_table[par->panel_index].w; + args[1] = panel_table[par->panel_index].h; + args[2] = panel_table[par->panel_index].sdcfg; + args[3] = panel_table[par->panel_index].gdcfg; + args[4] = panel_table[par->panel_index].lutfmt; broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args); /* did the controller really set it? */ broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_CFG, 5, args); - args[0] = 4; /* fsync len */ - args[1] = (10 << 8) | 4; /* fend/fbegin len */ - args[2] = 10; /* line sync len */ - args[3] = (100 << 8) | 4; /* line end/begin len */ - args[4] = 6; /* pixel clock cfg */ + args[0] = panel_table[par->panel_index].fsynclen; + args[1] = panel_table[par->panel_index].fendfbegin; + args[2] = panel_table[par->panel_index].lsynclen; + args[3] = panel_table[par->panel_index].lendlbegin; + args[4] = panel_table[par->panel_index].pixclk; broadsheet_send_cmdargs(par, BS_CMD_INIT_DSPE_TMG, 5, args); + broadsheet_write_reg32(par, 0x310, xres*yres*2); + /* setup waveform */ args[0] = 0x886; args[1] = 0; @@ -207,8 +818,9 @@ static void __devinit broadsheet_init_display(struct broadsheetfb_par *par) args[0] = 0x154; broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args); - broadsheet_burst_write(par, DPY_W*DPY_H/2, - (u16 *) par->info->screen_base); + broadsheet_burst_write(par, (panel_table[par->panel_index].w * + panel_table[par->panel_index].h)/2, + (u16 *) par->info->screen_base); broadsheet_send_command(par, BS_CMD_LD_IMG_END); @@ -222,6 +834,21 @@ static void __devinit broadsheet_init_display(struct broadsheetfb_par *par) par->board->wait_for_rdy(par); } +static void __devinit broadsheet_identify(struct broadsheetfb_par *par) +{ + u16 rev, prc; + struct device *dev = par->info->device; + + rev = broadsheet_read_reg(par, BS_REG_REV); + prc = broadsheet_read_reg(par, BS_REG_PRC); + dev_info(dev, "Broadsheet Rev 0x%x, Product Code 0x%x\n", rev, prc); + + if (prc != 0x0047) + dev_warn(dev, "Unrecognized Broadsheet Product Code\n"); + if (rev != 0x0100) + dev_warn(dev, "Unrecognized Broadsheet Revision\n"); +} + static void __devinit broadsheet_init(struct broadsheetfb_par *par) { broadsheet_send_command(par, BS_CMD_INIT_SYS_RUN); @@ -236,6 +863,7 @@ static void broadsheetfb_dpy_update_pages(struct broadsheetfb_par *par, u16 args[5]; unsigned char *buf = (unsigned char *)par->info->screen_base; + mutex_lock(&(par->io_lock)); /* y1 must be a multiple of 4 so drop the lower bits */ y1 &= 0xFFFC; /* y2 must be a multiple of 4 , but - 1 so up the lower bits */ @@ -265,6 +893,7 @@ static void broadsheetfb_dpy_update_pages(struct broadsheetfb_par *par, broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND); par->board->wait_for_rdy(par); + mutex_unlock(&(par->io_lock)); } @@ -272,13 +901,15 @@ static void broadsheetfb_dpy_update(struct broadsheetfb_par *par) { u16 args[5]; + mutex_lock(&(par->io_lock)); args[0] = 0x3 << 4; broadsheet_send_cmdargs(par, BS_CMD_LD_IMG, 1, args); args[0] = 0x154; broadsheet_send_cmdargs(par, BS_CMD_WR_REG, 1, args); - broadsheet_burst_write(par, DPY_W*DPY_H/2, - (u16 *) par->info->screen_base); + broadsheet_burst_write(par, (panel_table[par->panel_index].w * + panel_table[par->panel_index].h)/2, + (u16 *) par->info->screen_base); broadsheet_send_command(par, BS_CMD_LD_IMG_END); @@ -290,7 +921,7 @@ static void broadsheetfb_dpy_update(struct broadsheetfb_par *par) broadsheet_send_command(par, BS_CMD_WAIT_DSPE_FREND); par->board->wait_for_rdy(par); - + mutex_unlock(&(par->io_lock)); } /* this is called back from the deferred io workqueue */ @@ -436,6 +1067,8 @@ static int __devinit broadsheetfb_probe(struct platform_device *dev) unsigned char *videomemory; struct broadsheetfb_par *par; int i; + int dpyw, dpyh; + int panel_index; /* pick up board specific routines */ board = dev->dev.platform_data; @@ -450,7 +1083,24 @@ static int __devinit broadsheetfb_probe(struct platform_device *dev) if (!info) goto err; - videomemorysize = (DPY_W*DPY_H); + switch (board->get_panel_type()) { + case 37: + panel_index = 1; + break; + case 97: + panel_index = 2; + break; + case 6: + default: + panel_index = 0; + break; + } + + dpyw = panel_table[panel_index].w; + dpyh = panel_table[panel_index].h; + + videomemorysize = roundup((dpyw*dpyh), PAGE_SIZE); + videomemory = vmalloc(videomemorysize); if (!videomemory) goto err_fb_rel; @@ -460,16 +1110,25 @@ static int __devinit broadsheetfb_probe(struct platform_device *dev) info->screen_base = (char *)videomemory; info->fbops = &broadsheetfb_ops; + broadsheetfb_var.xres = dpyw; + broadsheetfb_var.yres = dpyh; + broadsheetfb_var.xres_virtual = dpyw; + broadsheetfb_var.yres_virtual = dpyh; info->var = broadsheetfb_var; + + broadsheetfb_fix.line_length = dpyw; info->fix = broadsheetfb_fix; info->fix.smem_len = videomemorysize; par = info->par; + par->panel_index = panel_index; par->info = info; par->board = board; par->write_reg = broadsheet_write_reg; par->read_reg = broadsheet_read_reg; init_waitqueue_head(&par->waitq); + mutex_init(&par->io_lock); + info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB; info->fbdefio = &broadsheetfb_defio; @@ -496,13 +1155,20 @@ static int __devinit broadsheetfb_probe(struct platform_device *dev) if (retval < 0) goto err_free_irq; + broadsheet_identify(par); + broadsheet_init(par); retval = register_framebuffer(info); if (retval < 0) goto err_free_irq; + platform_set_drvdata(dev, info); + retval = device_create_file(&dev->dev, &dev_attr_loadstore_waveform); + if (retval < 0) + goto err_unreg_fb; + printk(KERN_INFO "fb%d: Broadsheet frame buffer, using %dK of video memory\n", info->node, videomemorysize >> 10); @@ -510,6 +1176,8 @@ static int __devinit broadsheetfb_probe(struct platform_device *dev) return 0; +err_unreg_fb: + unregister_framebuffer(info); err_free_irq: board->cleanup(par); err_cmap: @@ -530,6 +1198,8 @@ static int __devexit broadsheetfb_remove(struct platform_device *dev) if (info) { struct broadsheetfb_par *par = info->par; + + device_remove_file(info->dev, &dev_attr_loadstore_waveform); unregister_framebuffer(info); fb_deferred_io_cleanup(info); par->board->cleanup(par); |